Commit Graph

237 Commits

Author SHA1 Message Date
Al Viro
5f60d5f6bb move asm/unaligned.h to linux/unaligned.h
asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.

auto-generated by the following:

for i in `git grep -l -w asm/unaligned.h`; do
	sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
	sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
2024-10-02 17:23:23 -04:00
Al Viro
cb787f4ac0 [tree-wide] finally take no_llseek out
no_llseek had been defined to NULL two years ago, in commit 868941b144
("fs: remove no_llseek")

To quote that commit,

  At -rc1 we'll need do a mechanical removal of no_llseek -

  git grep -l -w no_llseek | grep -v porting.rst | while read i; do
	sed -i '/\<no_llseek\>/d' $i
  done

  would do it.

Unfortunately, that hadn't been done.  Linus, could you do that now, so
that we could finally put that thing to rest? All instances are of the
form
	.llseek = no_llseek,
so it's obviously safe.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-09-27 08:18:43 -07:00
Linus Torvalds
2f8c4f5062 auxdisplay updates for v6.11
- Add support for configuring the boot message on line displays,
   - Miscellaneous fixes and improvements.
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Merge tag 'auxdisplay-for-v6.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull auxdisplay updates from Geert Uytterhoeven:

  - add support for configuring the boot message on line displays

  - miscellaneous fixes and improvements

* tag 'auxdisplay-for-v6.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  auxdisplay: ht16k33: Drop reference after LED registration
  auxdisplay: Use sizeof(*pointer) instead of sizeof(type)
  auxdisplay: hd44780: add missing MODULE_DESCRIPTION() macro
  auxdisplay: linedisp: add missing MODULE_DESCRIPTION() macro
  auxdisplay: linedisp: Support configuring the boot message
  auxdisplay: charlcd: Provide a forward declaration
2024-07-26 11:04:28 -07:00
Dr. David Alan Gilbert
dfd19866d1 parport: Remove parport_driver.devmodel
'devmodel' hasn't actually been used since:
  'commit 3275158fa5 ("parport: remove use of devmodel")'
and everyone now has it set to true and has been fixed up; remove
the flag.

(There are still comments all over about it)

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20240502154823.67235-4-linux@treblig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-03 16:44:22 +02:00
Markus Elfring
2ccfe94bc3 auxdisplay: ht16k33: Drop reference after LED registration
The reference count is bumped by device_get_named_child_node()
and never dropped. Since LED APIs do not require it to be
bumped by the user, drop the reference after LED registration.

[andy: rewritten the commit message and amended the change]

Fixes: c223d9c636 ("auxdisplay: ht16k33: Add LED support")
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-06-11 16:58:52 +03:00
Erick Archer
632691ad83 auxdisplay: Use sizeof(*pointer) instead of sizeof(type)
It is preferred to use sizeof(*pointer) instead of sizeof(type)
due to the type of the variable can change and one needs not
change the former (unlike the latter). This patch has no effect
on runtime behavior.

Signed-off-by: Erick Archer <erick.archer@outlook.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-06-04 10:29:36 +03:00
Jeff Johnson
c56a45064e auxdisplay: hd44780: add missing MODULE_DESCRIPTION() macro
make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/hd44780_common.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-06-04 10:29:36 +03:00
Jeff Johnson
4adbf7086d auxdisplay: linedisp: add missing MODULE_DESCRIPTION() macro
make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/line-display.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-06-04 10:29:36 +03:00
Chris Packham
c8ffef985a auxdisplay: linedisp: Support configuring the boot message
Like we do for charlcd, allow the configuration of the initial message
on line-display devices.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-06-04 10:29:36 +03:00
Andy Shevchenko
1bbf5a2156 auxdisplay: charlcd: Provide a forward declaration
While there is no compilation error, strictly speaking the compiler
should know about used types beforehand. Provide a forward declaration
for struct charlcd_ops before using it in struct charlcd.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-05-28 01:09:53 +03:00
Linus Torvalds
7eae27cd12 - Fix-ups
- FB Backlight interaction overhaul
    - Remove superfluous code and simplify overall
    - Constify various structs and struct attributes
 
  - Bug Fixes
    - Repair LED flickering
    - Fix signedness bugs
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Merge tag 'backlight-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "Fix-ups:
   - FB Backlight interaction overhaul
   - Remove superfluous code and simplify overall
   - Constify various structs and struct attributes

  Bug Fixes:
   - Repair LED flickering
   - Fix signedness bugs"

* tag 'backlight-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (42 commits)
  backlight: sky81452-backlight: Remove unnecessary call to of_node_get()
  backlight: mp3309c: Fix LEDs flickering in PWM mode
  backlight: otm3225a: Drop driver owner assignment
  backlight: lp8788: Drop support for platform data
  backlight: lcd: Make lcd_class constant
  backlight: Make backlight_class constant
  backlight: mp3309c: Fix signedness bug in mp3309c_parse_fwnode()
  const_structs.checkpatch: add lcd_ops
  fbdev: omap: lcd_ams_delta: Constify lcd_ops
  fbdev: imx: Constify lcd_ops
  fbdev: clps711x: Constify lcd_ops
  HID: picoLCD: Constify lcd_ops
  backlight: tdo24m: Constify lcd_ops
  backlight: platform_lcd: Constify lcd_ops
  backlight: otm3225a: Constify lcd_ops
  backlight: ltv350qv: Constify lcd_ops
  backlight: lms501kf03: Constify lcd_ops
  backlight: lms283gf05: Constify lcd_ops
  backlight: l4f00242t03: Constify lcd_ops
  backlight: jornada720_lcd: Constify lcd_ops
  ...
2024-05-22 10:45:12 -07:00
Lee Jones
13cb61bed5 Merge branches 'ib-backlight-auxdisplay-staging-omap-6.9', 'ib-backlight-auxdisplay-hid-fb-6.9' and 'ib-backlight-hid-fbdev-lcd-scripts-6.10' into ibs-for-backlight-merged 2024-05-10 15:43:31 +01:00
Andy Shevchenko
93ee235f55 auxdisplay: charlcd: Don't rebuild when CONFIG_PANEL_BOOT_MESSAGE=y
When CONFIG_PANEL_BOOT_MESSAGE=y the module still includes
the generated header and gets rebuilt even if it doesn't use
anything from that header.  Include generated header conditionally
to avoid unnecessary rebuilds.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-04-11 13:34:29 +03:00
Andy Shevchenko
29b08729ab auxdisplay: charlcd: Add missing MODULE_DESCRIPTION()
The modpost script is not happy

  WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/charlcd.o

because there is a missing module description.

Add it to the module.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-04-11 13:32:05 +03:00
Uwe Kleine-König
c352a04107 auxdisplay: seg-led-gpio: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-04-09 15:54:25 +03:00
Andy Shevchenko
16934de47d auxdisplay: linedisp: Group display drivers together
For better usability group the display drivers together in Kconfig.
With this we will have the following sections:
  - Character LCD
  - Samsung KS0108 LCD controller
  - Single character line display
  - Character LCD with non-conforming interface

Keep Makefile entries sorted alphabetically.

While at it, drop redundant 'default n' entries.

Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-04-02 19:09:14 +03:00
Thomas Zimmermann
899dbfb28b auxdisplay: ht16k33: Replace use of fb_blank with backlight helper
Replace the use of struct backlight_properties.fb_blank with a call
to backlight_get_brightness(). The helper implements similar logic
as the driver's function. It also accounts for BL_CORE_SUSPENDED for
drivers that set BL_CORE_SUSPENDRESUME. Ht16k33 doesn't use this, so
there's no change in behaviour here.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Robin van der Gracht <robin@protonic.nl>
Cc: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Robin van der Gracht <robin@protonic.nl>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/20240319093915.31778-2-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-28 10:12:48 +00:00
Thomas Zimmermann
330682161d auxdisplay: ht16k33: Remove struct backlight_ops.check_fb
The driver sets struct fb_info.bl_dev to the correct backlight
device. Thus rely on the backlight core code to match backlight
and framebuffer devices, and remove the extra check_fb() function
from struct backlight_ops.

v3:
	* use 'check_fb()' in commit message (Andy)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Robin van der Gracht <robin@protonic.nl>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Acked-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240305162425.23845-3-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-28 10:08:54 +00:00
Uwe Kleine-König
5d9e129722 auxdisplay: img-ascii-lcd: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-03-12 17:37:54 +02:00
Uwe Kleine-König
9ea02f7cc3 auxdisplay: hd44780: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-03-12 17:36:49 +02:00
Uwe Kleine-König
07d03559ed auxdisplay: cfag12864bfb: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-03-12 17:36:49 +02:00
Chris Packham
d8abf9d4ea auxdisplay: seg-led-gpio: Import linedisp namespace
The seg-led-gpio driver uses symbols from the linedisp namespace. Ensure
these are imported.

Fixes: 899383f9ec ("auxdisplay: Add 7-segment LED display driver")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Closes: https://lore.kernel.org/r/202403100401.IDre04gu-lkp@intel.com/
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-03-11 11:56:45 +02:00
Chris Packham
899383f9ec auxdisplay: Add 7-segment LED display driver
Add a driver for a 7-segment LED display. At the moment only one
character is supported but it should be possible to expand this to
support more characters and/or 14-segment displays in the future.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-03-08 14:15:47 +02:00
Andy Shevchenko
a9bcd02fa4 auxdisplay: Add driver for MAX695x 7-segment LED controllers
Add initial driver for the MAX6958 and MAX6959 7-segment LED
controllers.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-26 20:02:35 +02:00
Andy Shevchenko
a459b2707a auxdisplay: ht16k33: Drop struct ht16k33_seg
The struct ht16k33_seg is repeating struct linedisp. Use the latter
directly.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-26 18:07:16 +02:00
Andy Shevchenko
815876dc0b auxdisplay: ht16k33: Switch to use line display character mapping
Since line display library supports necessary bits to map the characters
(if required), switch this driver to use that.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-26 18:07:16 +02:00
Andy Shevchenko
0ee6eb851e auxdisplay: ht16k33: Define a few helper macros
Define a few helper macros — wrappers on container_of() — for easier
maintenance in the future. While at it, include missing container_of.h.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-26 18:07:05 +02:00
Andy Shevchenko
5a805a7827 auxdisplay: ht16k33: Move ht16k33_linedisp_ops down
We will need the update functions to be defined before
ht16k33_linedisp_ops. Move the latter down in the code.
No functional change intended.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-26 18:02:19 +02:00
Andy Shevchenko
ef2086a9e1 auxdisplay: ht16k33: Add default to switch-cases
Currently the compiler (GCC) is able to figure out that there is no
other choices possible than those that are already listed in the
switch-cases. However, if we want to move some code to the callback,
compiler will start complaining that no default is defined. Make
sure we have all switch-cases equiped with default.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-26 18:02:19 +02:00
Andy Shevchenko
4ce026d5f4 auxdisplay: linedisp: Allocate buffer for the string
Always allocate a buffer for the currently displayed characters.
It makes the line display API simpler.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-26 18:02:19 +02:00
Andy Shevchenko
34ddc83dc7 auxdisplay: linedisp: Add support for overriding character mapping
There is already the driver using character mapping table for
7 or 14 segment display. It is possible to override it. Make
the similar in the line display library to allow other drivers
to utilise the same functionality.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 14:30:15 +02:00
Andy Shevchenko
70fb97c061 auxdisplay: linedisp: Provide struct linedisp_ops for future extension
Currently the line display library doesn't scale in case we want to
provide more operations. Prepare the library to take a newly created
struct linedisp_ops that scales.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 14:30:15 +02:00
Andy Shevchenko
fe5bd82f59 auxdisplay: linedisp: Move exported symbols to a namespace
Avoid unnecessary pollution of the global symbol namespace by
moving library functions in to a specific namespace and import
that into the drivers that make use of the functions.

For more info: https://lwn.net/Articles/760045/

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 13:31:21 +02:00
Andy Shevchenko
6134b0be91 auxdisplay: linedisp: Add missing header(s)
Do not imply that some of the generic headers may be always included.
Instead, include explicitly what we are direct user of.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 13:31:21 +02:00
Andy Shevchenko
7168791fca auxdisplay: linedisp: Unshadow error codes in ->store()
kstrtox() may return different error codes.

Unshadow them in the ->store() callback to give better error report.

While at it, add missing kstrtox.h inclusion.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 13:31:20 +02:00
Andy Shevchenko
50d6b9d56e auxdisplay: linedisp: Use unique number for id
The absence of decrementation of linedisp_id is incorrect in two ways,
i.e. it may cause:
- an ID exhaustion
- (and if the above is addressed) a duplicate id number may be allocated
  next time a device is added

Replace above mentioned approach by using IDA framework.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 13:31:12 +02:00
Andy Shevchenko
2327960f0c auxdisplay: linedisp: Free allocated resources in ->release()
While there is no issue currently with the resources allocation,
the code may still be made more robust by deallocating message
in the ->release() callback.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 13:24:54 +02:00
Andy Shevchenko
a8fc3d587f auxdisplay: img-ascii-lcd: Make container_of() no-op for struct linedisp
Move embedded struct linedisp member to make container_of() no-op.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 13:24:53 +02:00
Andy Shevchenko
b33190d0fd auxdisplay: panel: Switch to use module_parport_driver()
Switch to use module_parport_driver() to reduce boilerplate code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-02-15 13:24:53 +02:00
Linus Torvalds
cf65598d59 drm-next for 6.8:
new drivers:
 - imagination - new driver for Imagination Technologies GPU
 - xe - new driver for Intel GPUs using core drm concepts
 
 core:
 - add CLOSE_FB ioctl
 - remove old UMS ioctls
 - increase max objects to accomodate AMD color mgmt
 
 encoder:
 - create per-encoder debugfs directory
 
 edid:
 - split out drm_eld
 - SAD helpers
 - drop edid_firmware module parameter
 
 format-helper:
 - cache format conversion buffers
 
 sched:
 - move from kthread to workqueue
 - rename some internals
 - implement dynamic job-flow control
 
 gpuvm:
 - provide more features to handle GEM objects
 
 client:
 - don't acquire module reference
 
 displayport:
 - add mst path property documentation
 
 fdinfo:
 - alignment fix
 
 dma-buf:
 - add fence timestamp helper
 - add fence deadline support
 
 bridge:
 - transparent aux-bridge for DP/USB-C
 - lt8912b: add suspend/resume support and power regulator support
 
 panel:
 - edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
 - chromebook panel support
 - elida-kd35t133: rework pm
 - powkiddy RK2023 panel
 - himax-hx8394: drop prepare/unprepare and shutdown logic
 - BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
 - Evervision VGG644804, SDC ATNA45AF01
 - nv3052c: register docs, init sequence fixes, fascontek FS035VG158
 - st7701: Anbernic RG-ARC support
 - r63353 panel controller
 - Ilitek ILI9805 panel controller
 - AUO G156HAN04.0
 
 simplefb:
 - support memory regions
 - support power domains
 
 amdgpu:
 - add new 64-bit sequence number infrastructure
 - add AMD specific color management
 - ACPI WBRF support for RF interference handling
 - GPUVM updates
 - RAS updates
 - DCN 3.5 updates
 - Rework PCIe link speed handling
 - Document GPU reset types
 - DMUB fixes
 - eDP fixes
 - NBIO 7.9/7.11 updates
 - SubVP updates
 - XGMI PCIe state dumping for aqua vanjaram
 - GFX11 golden register updates
 - enable tunnelling on high pri compute
 
 amdkfd:
 - Migrate TLB flushing logic to amdgpu
 - Trap handler fixes
 - Fix restore workers handling on suspend/resume
 - Fix possible memory leak in pqm_uninit()
 - support import/export of dma-bufs using GEM handles
 
 radeon:
 - fix possible overflows in command buffer checking
 - check for errors in ring_lock
 
 i915:
 - reorg display code for reuse in xe driver
 - fdinfo memory stats printing
 - DP MST bandwidth mgmt improvements
 - DP panel replay enabling
 - MTL C20 phy state verification
 - MTL DP DSC fractional bpp support
 - Audio fastset support
 - use dma_fence interfaces instead of i915_sw_fence
 - Separate gem and display code
 - AUX register macro refactoring
 - Separate display module/device parameters
 - Move display capabilities debugfs under display
 - Makefile cleanups
 - Register cleanups
 - Move display lock inits under display/
 - VLV/CHV DPIO PHY register and interface refactoring
 - DSI VBT sequence refactoring
 - C10/C20 PHY PLL hardware readout
 - DPLL code cleanups
 - Cleanup PXP plane protection checks
 - Improve display debug msgs
 - PSR selective fetch fixes/improvements
 - DP MST fixes
 - Xe2LPD FBC restrictions removed
 - DGFX uses direct VBT pin mapping
 - more MTL WAs
 - fix MTL eDP bug
 - eliminate use of kmap_atomic
 
 habanalabs:
 - sysfs entry to identify a device minor id with debugfs path
 - sysfs entry to expose device module id
 - add signed device info retrieval through INFO ioctl
 - add Gaudi2C device support
 - pcie reset prepare/done hooks
 
 msm:
 - Add support for SDM670, SM8650
 - Handle the CFG interconnect to fix the obscure hangs / timeouts
 - Kconfig fix for QMP dependency
 - use managed allocators
 - DPU: SDM670, SM8650 support
 - DPU: Enable SmartDMA on SM8350 and SM8450
 - DP: enable runtime PM support
 - GPU: add metadata UAPI
 - GPU: move devcoredumps to GPU device
 - GPU: convert to drm_exec
 
 ivpu:
 - update FW API
 - new debugfs file
 - a new NOP job submission test mode
 - improve suspend/resume
 - PM improvements
 - MMU PT optimizations
 - firmware profile frequency support
 - support for uncached buffers
 - switch to gem shmem helpers
 - replace kthread with threaded irqs
 
 rockchip:
 - rk3066_hdmi: convert to atomic
 - vop2: support nv20 and nv30
 - rk3588 support
 
 mediatek:
 - use devm_platform_ioremap_resource
 - stop using iommu_present
 - MT8188 VDOSYS1 display support
 
 panfrost:
 - PM improvements
 - improve interrupt handling as poweroff
 
 qaic:
 - allow to run with single MSI
 - support host/device time sync
 - switch to persistent DRM devices
 
 exynos:
 - fix potential error pointer dereference
 - fix wrong error checking
 - add missing call to drm_atomic_helper_shutdown
 
 omapdrm:
 - dma-fence lockdep annotation fix
 
 tidss:
 - dma-fence lockdep annotation fix
 - support for AM62A7
 
 v3d:
 - BCM2712 - rpi5 support
 - fdinfo + gputop support
 - uapi for CPU job handling
 
 virtio-gpu:
 - add context debug name
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Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This contains two major new drivers:

   - imagination is a first driver for Imagination Technologies devices,
     it only covers very specific devices, but there is hope to grow it

   - xe is a reboot of the i915 GPU (shares display) side using a more
     upstream focused development model, and trying to maximise code
     sharing. It's not enabled for any hw by default, and will hopefully
     get switched on for Intel's Lunarlake.

  This also drops a bunch of the old UMS ioctls. It's been dead long
  enough.

  amdgpu has a bunch of new color management code that is being used in
  the Steam Deck.

  amdgpu also has a new ACPI WBRF interaction to help avoid radio
  interference.

  Otherwise it's the usual lots of changes in lots of places.

  Detailed summary:

  new drivers:
   - imagination - new driver for Imagination Technologies GPU
   - xe - new driver for Intel GPUs using core drm concepts

  core:
   - add CLOSE_FB ioctl
   - remove old UMS ioctls
   - increase max objects to accomodate AMD color mgmt

  encoder:
   - create per-encoder debugfs directory

  edid:
   - split out drm_eld
   - SAD helpers
   - drop edid_firmware module parameter

  format-helper:
   - cache format conversion buffers

  sched:
   - move from kthread to workqueue
   - rename some internals
   - implement dynamic job-flow control

  gpuvm:
   - provide more features to handle GEM objects

  client:
   - don't acquire module reference

  displayport:
   - add mst path property documentation

  fdinfo:
   - alignment fix

  dma-buf:
   - add fence timestamp helper
   - add fence deadline support

  bridge:
   - transparent aux-bridge for DP/USB-C
   - lt8912b: add suspend/resume support and power regulator support

  panel:
   - edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
   - chromebook panel support
   - elida-kd35t133: rework pm
   - powkiddy RK2023 panel
   - himax-hx8394: drop prepare/unprepare and shutdown logic
   - BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
   - Evervision VGG644804, SDC ATNA45AF01
   - nv3052c: register docs, init sequence fixes, fascontek FS035VG158
   - st7701: Anbernic RG-ARC support
   - r63353 panel controller
   - Ilitek ILI9805 panel controller
   - AUO G156HAN04.0

  simplefb:
   - support memory regions
   - support power domains

  amdgpu:
   - add new 64-bit sequence number infrastructure
   - add AMD specific color management
   - ACPI WBRF support for RF interference handling
   - GPUVM updates
   - RAS updates
   - DCN 3.5 updates
   - Rework PCIe link speed handling
   - Document GPU reset types
   - DMUB fixes
   - eDP fixes
   - NBIO 7.9/7.11 updates
   - SubVP updates
   - XGMI PCIe state dumping for aqua vanjaram
   - GFX11 golden register updates
   - enable tunnelling on high pri compute

  amdkfd:
   - Migrate TLB flushing logic to amdgpu
   - Trap handler fixes
   - Fix restore workers handling on suspend/resume
   - Fix possible memory leak in pqm_uninit()
   - support import/export of dma-bufs using GEM handles

  radeon:
   - fix possible overflows in command buffer checking
   - check for errors in ring_lock

  i915:
   - reorg display code for reuse in xe driver
   - fdinfo memory stats printing
   - DP MST bandwidth mgmt improvements
   - DP panel replay enabling
   - MTL C20 phy state verification
   - MTL DP DSC fractional bpp support
   - Audio fastset support
   - use dma_fence interfaces instead of i915_sw_fence
   - Separate gem and display code
   - AUX register macro refactoring
   - Separate display module/device parameters
   - Move display capabilities debugfs under display
   - Makefile cleanups
   - Register cleanups
   - Move display lock inits under display/
   - VLV/CHV DPIO PHY register and interface refactoring
   - DSI VBT sequence refactoring
   - C10/C20 PHY PLL hardware readout
   - DPLL code cleanups
   - Cleanup PXP plane protection checks
   - Improve display debug msgs
   - PSR selective fetch fixes/improvements
   - DP MST fixes
   - Xe2LPD FBC restrictions removed
   - DGFX uses direct VBT pin mapping
   - more MTL WAs
   - fix MTL eDP bug
   - eliminate use of kmap_atomic

  habanalabs:
   - sysfs entry to identify a device minor id with debugfs path
   - sysfs entry to expose device module id
   - add signed device info retrieval through INFO ioctl
   - add Gaudi2C device support
   - pcie reset prepare/done hooks

  msm:
   - Add support for SDM670, SM8650
   - Handle the CFG interconnect to fix the obscure hangs / timeouts
   - Kconfig fix for QMP dependency
   - use managed allocators
   - DPU: SDM670, SM8650 support
   - DPU: Enable SmartDMA on SM8350 and SM8450
   - DP: enable runtime PM support
   - GPU: add metadata UAPI
   - GPU: move devcoredumps to GPU device
   - GPU: convert to drm_exec

  ivpu:
   - update FW API
   - new debugfs file
   - a new NOP job submission test mode
   - improve suspend/resume
   - PM improvements
   - MMU PT optimizations
   - firmware profile frequency support
   - support for uncached buffers
   - switch to gem shmem helpers
   - replace kthread with threaded irqs

  rockchip:
   - rk3066_hdmi: convert to atomic
   - vop2: support nv20 and nv30
   - rk3588 support

  mediatek:
   - use devm_platform_ioremap_resource
   - stop using iommu_present
   - MT8188 VDOSYS1 display support

  panfrost:
   - PM improvements
   - improve interrupt handling as poweroff

  qaic:
   - allow to run with single MSI
   - support host/device time sync
   - switch to persistent DRM devices

  exynos:
   - fix potential error pointer dereference
   - fix wrong error checking
   - add missing call to drm_atomic_helper_shutdown

  omapdrm:
   - dma-fence lockdep annotation fix

  tidss:
   - dma-fence lockdep annotation fix
   - support for AM62A7

  v3d:
   - BCM2712 - rpi5 support
   - fdinfo + gputop support
   - uapi for CPU job handling

  virtio-gpu:
   - add context debug name"

* tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm: (2340 commits)
  drm/amd/display: Allow z8/z10 from driver
  drm/amd/display: fix bandwidth validation failure on DCN 2.1
  drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
  drm/amd/display: Move fixpt_from_s3132 to amdgpu_dm
  drm/amd/display: Fix recent checkpatch errors in amdgpu_dm
  Revert "drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole"
  drm/amd/display: avoid stringop-overflow warnings for dp_decide_lane_settings()
  drm/amd/display: Fix power_helpers.c codestyle
  drm/amd/display: Fix hdcp_log.h codestyle
  drm/amd/display: Fix hdcp2_execution.c codestyle
  drm/amd/display: Fix hdcp_psp.h codestyle
  drm/amd/display: Fix freesync.c codestyle
  drm/amd/display: Fix hdcp_psp.c codestyle
  drm/amd/display: Fix hdcp1_execution.c codestyle
  drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init
  drm/amdkfd: Fix iterator used outside loop in 'kfd_add_peer_prop()'
  drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()'
  drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c
  drm/amdgpu: Fix '*fw' from request_firmware() not released in 'amdgpu_ucode_request()'
  drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
  ...
2024-01-12 11:32:19 -08:00
Rob Herring
c52391fafc auxdisplay: img-ascii-lcd: Use device_get_match_data()
Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Paul Burton <paulburton@kernel.org>
Link: https://lore.kernel.org/r/20231115210245.3744589-1-robh@kernel.org
[ As discussed, used `dev` and moved call to `cfg`'s initialization. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2023-12-01 16:39:45 +01:00
Thomas Zimmermann
76f92201b8 fbdev: Push pgprot_decrypted() into mmap implementations
If a driver sets struct fb_ops.fb_mmap, the fbdev core automatically
calls pgprot_decrypted(). But the default fb_mmap code doesn't handle
pgprot_decrypted().

Move the call to pgprot_decrypted() into each drivers' fb_mmap function.
This only concerns fb_mmap functions for system and DMA memory. For
I/O memory, which is the default case, nothing changes. The fb_mmap
for I/O-memory can later be moved into a helper as well.

DRM's fbdev emulation handles pgprot_decrypted() internally via the
Prime helpers. Fbdev doesn't have to do anything in this case. In
cases where DRM uses deferred I/O, this patch updates fb_mmap correctly.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-30-tzimmermann@suse.de
2023-11-29 12:20:44 +01:00
Thomas Zimmermann
df558d5313 auxdisplay/ht16k33: Initialize fb_ops with fbdev macros
Initialize the instance of struct fb_ops with fbdev initializer
macros for framebuffers in virtual address space. Set the read/write,
draw and mmap callbacks to the correct implementation and avoid
implicit defaults. Also select the necessary helpers in Kconfig.

Fbdev drivers sometimes rely on the callbacks being NULL for a
default I/O-memory-based implementation to be invoked; hence
requiring the I/O helpers to be built in any case. Setting all
callbacks in all drivers explicitly will allow to make the I/O
helpers optional. This benefits systems that do not use these
functions.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Robin van der Gracht <robin@protonic.nl>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Robin van der Gracht <robin@protonic.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-11-tzimmermann@suse.de
2023-11-29 12:20:24 +01:00
Thomas Zimmermann
1d6796547a auxdisplay/ht16k33: Set FBINFO_VIRTFB flag
The ht16k33 driver operates on system memory. Mark the framebuffer
accordingly. Helpers operating on the framebuffer memory will test
for the presence of this flag.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Robin van der Gracht <robin@protonic.nl>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-10-tzimmermann@suse.de
2023-11-29 12:20:23 +01:00
Thomas Zimmermann
36e6cacdb0 auxdisplay/cfag12864bfb: Initialize fb_ops with fbdev macros
Initialize the instance of struct fb_ops with fbdev initializer
macros for framebuffers in virtual address space. Set the read/write,
draw and mmap callbacks to the correct implementation and avoid
implicit defaults. Also select the necessary helpers in Kconfig.

Fbdev drivers sometimes rely on the callbacks being NULL for a
default I/O-memory-based implementation to be invoked; hence
requiring the I/O helpers to be built in any case. Setting all
callbacks in all drivers explicitly will allow to make the I/O
helpers optional. This benefits systems that do not use these
functions.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-9-tzimmermann@suse.de
2023-11-29 12:20:21 +01:00
Thomas Zimmermann
eba1418968 auxdisplay/cfag12864bfb: Set FBINFO_VIRTFB flag
The cfag12864bfb driver operates on system memory. Mark the framebuffer
accordingly. Helpers operating on the framebuffer memory will test for
the presence of this flag.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-8-tzimmermann@suse.de
2023-11-29 12:20:20 +01:00
Justin Stitt
a952abcdaa auxdisplay: panel: Replace deprecated strncpy() with strtomem_pad()
`strncpy` is deprecated and as such we should prefer more robust and
less ambiguous interfaces.

In this case, all of `press_str`, `repeat_str` and `release_str` are
explicitly marked as nonstring:
|   struct {	/* valid when type == INPUT_TYPE_KBD */
|           char press_str[sizeof(void *) + sizeof(int)] __nonstring;
|           char repeat_str[sizeof(void *) + sizeof(int)] __nonstring;
|           char release_str[sizeof(void *) + sizeof(int)] __nonstring;
|   } kbd;

... which makes `strtomem_pad` a suitable replacement as it is
functionally the same whilst being more obvious about its behavior.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230911-strncpy-drivers-auxdisplay-panel-c-v1-1-b60bd0ae8552@google.com
Signed-off-by: Kees Cook <keescook@chromium.org>
2023-09-29 14:48:31 -07:00
Linus Torvalds
461f35f014 drm for 6.6-rc1
core:
 - fix gfp flags in drmm_kmalloc
 
 gpuva:
 - add new generic GPU VA manager (for nouveau initially)
 
 syncobj:
 - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl
 
 dma-buf:
 - acquire resv lock for mmap() in exporters
 - support dma-buf self import automatically
 - docs fixes
 
 backlight:
 - fix fbdev interactions
 
 atomic:
 - improve logging
 
 prime:
 - remove struct gem_prim_mmap plus driver updates
 
 gem:
 - drm_exec: add locking over multiple GEM objects
 - fix lockdep checking
 
 fbdev:
 - make fbdev userspace interfaces optional
 - use linux device instead of fbdev device
 - use deferred i/o helper macros in various drivers
 - Make FB core selectable without drivers
 - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT
 - Add helper macros and Kconfig tokens for DMA-allocated framebuffer
 
 ttm:
 - support init_on_free
 - swapout fixes
 
 panel:
 - panel-edp: Support AUO B116XAB01.4
 - Support Visionox R66451 plus DT bindings
 - ld9040: Backlight support, magic improved,
           Kconfig fix
 - Convert to of_device_get_match_data()
 - Fix Kconfig dependencies
 - simple: Set bpc value to fix warning; Set connector type for AUO T215HVN01;
   Support Innolux G156HCE-L01 plus DT bindings
 - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings
 - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings
 - sitronix-st7789v: Support Inanbo T28CP45TN89 plus DT bindings;
          Support EDT ET028013DMA plus DT bindings; Various cleanups
 - edp: Add timings for N140HCA-EAC
 - Allow panels and touchscreens to power sequence together
 - Fix Innolux G156HCE-L01 LVDS clock
 
 bridge:
 - debugfs for chains support
 - dw-hdmi: Improve support for YUV420 bus format
            CEC suspend/resume, update EDID on HDMI detect
 - dw-mipi-dsi: Fix enable/disable of DSI controller
 - lt9611uxc: Use MODULE_FIRMWARE()
 - ps8640: Remove broken EDID code
 - samsung-dsim: Fix command transfer
 - tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups
 - adv7511: Fix low refresh rate
 - anx7625: Switch to macros instead of hardcoded values
            locking fixes
 - tc358767: fix hardware delays
 - sitronix-st7789v: Support panel orientation; Support rotation
                     property; Add support for Jasonic
                     JT240MHQS-HWT-EK-E3 plus DT bindings
 
 amdgpu:
 - SDMA 6.1.0 support
 - HDP 6.1 support
 - SMUIO 14.0 support
 - PSP 14.0 support
 - IH 6.1 support
 - Lots of checkpatch cleanups
 - GFX 9.4.3 updates
 - Add USB PD and IFWI flashing documentation
 - GPUVM updates
 - RAS fixes
 - DRR fixes
 - FAMS fixes
 - Virtual display fixes
 - Soft IH fixes
 - SMU13 fixes
 - Rework PSP firmware loading for other IPs
 - Kernel doc fixes
 - DCN 3.0.1 fixes
 - LTTPR fixes
 - DP MST fixes
 - DCN 3.1.6 fixes
 - SMU 13.x fixes
 - PSP 13.x fixes
 - SubVP fixes
 - GC 9.4.3 fixes
 - Display bandwidth calculation fixes
 - VCN4 secure submission fixes
 - Allow building DC on RISC-V
 - Add visible FB info to bo_print_info
 - HBR3 fixes
 - GFX9 MCBP fix
 - GMC10 vmhub index fix
 - GMC11 vmhub index fix
 - Create a new doorbell manager
 - SR-IOV fixes
 - initial freesync panel replay support
 - revert zpos properly until igt regression is fixeed
 - use TTM to manage doorbell BAR
 - Expose both current and average power via hwmon if supported
 
 amdkfd:
 - Cleanup CRIU dma-buf handling
 - Use KIQ to unmap HIQ
 - GFX 9.4.3 debugger updates
 - GFX 9.4.2 debugger fixes
 - Enable cooperative groups fof gfx11
 - SVM fixes
 - Convert older APUs to use dGPU path like newer APUs
 - Drop IOMMUv2 path as it is no longer used
 - TBA fix for aldebaran
 
 i915:
 - ICL+ DSI modeset sequence
 - HDCP improvements
 - MTL display fixes and cleanups
 - HSW/BDW PSR1 restored
 - Init DDI ports in VBT order
 - General display refactors
 - Start using plane scale factor for relative data rate
 - Use shmem for dpt objects
 - Expose RPS thresholds in sysfs
 - Apply GuC SLPC min frequency softlimit correctly
 - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL
 - Fix a VMA UAF for multi-gt platform
 - Do not use stolen on MTL due to HW bug
 - Check HuC and GuC version compatibility on MTL
 - avoid infinite GPU waits due to premature release
   of request memory
 - Fixes and updates for GSC memory allocation
 - Display SDVO fixes
 - Take stolen handling out of FBC code
 - Make i915_coherent_map_type GT-centric
 - Simplify shmem_create_from_object map_type
 
 msm:
 - SM6125 MDSS support
 - DPU: SM6125 DPU support
 - DSI: runtime PM support, burst mode support
 - DSI PHY: SM6125 support in 14nm DSI PHY driver
 - GPU: prepare for a7xx
 - fix a690 firmware
 - disable relocs on a6xx and newer
 
 radeon:
 - Lots of checkpatch cleanups
 
 ast:
 - improve device-model detection
 - Represent BMV as virtual connector
 - Report DP connection status
 
 nouveau:
 - add new exec/bind interface to support Vulkan
 - document some getparam ioctls
 - improve VRAM detection
 - various fixes/cleanups
 - workraound DPCD issues
 
 ivpu:
 - MMU updates
 - debugfs support
 - Support vpu4
 
 virtio:
 - add sync object support
 
 atmel-hlcdc:
 - Support inverted pixclock polarity
 
 etnaviv:
 - runtime PM cleanups
 - hang handling fixes
 
 exynos:
 - use fbdev DMA helpers
 - fix possible NULL ptr dereference
 
 komeda:
 - always attach encoder
 
 omapdrm:
 - use fbdev DMA helpers
 ingenic:
 - kconfig regmap fixes
 
 loongson:
 - support display controller
 
 mediatek:
 - Small mtk-dpi cleanups
 - DisplayPort: support eDP and aux-bus
 - Fix coverity issues
 - Fix potential memory leak if vmap() fail
 
 mgag200:
 - minor fixes
 
 mxsfb:
 - support disabling overlay planes
 
 panfrost:
 - fix sync in IRQ handling
 
 ssd130x:
 - Support per-controller default resolution plus DT bindings
 - Reduce memory-allocation overhead
 - Improve intermediate buffer size computation
 - Fix allocation of temporary buffers
 - Fix pitch computation
 - Fix shadow plane allocation
 
 tegra:
 - use fbdev DMA helpers
 - Convert to devm_platform_ioremap_resource()
 - support bridge/connector
 - enable PM
 
 tidss:
 - Support TI AM625 plus DT bindings
 - Implement new connector model plus driver updates
 
 vkms:
 - improve write back support
 - docs fixes
 - support gamma LUT
 
 zynqmp-dpsub:
 - misc fixes
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Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The drm core grew a new generic gpu virtual address manager, and new
  execution locking helpers. These are used by nouveau now to provide
  uAPI support for the userspace Vulkan driver. AMD had a bunch of new
  IP core support, loads of refactoring around fbdev, but mostly just
  the usual amount of stuff across the board.

  core:
   - fix gfp flags in drmm_kmalloc

  gpuva:
   - add new generic GPU VA manager (for nouveau initially)

  syncobj:
   - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl

  dma-buf:
   - acquire resv lock for mmap() in exporters
   - support dma-buf self import automatically
   - docs fixes

  backlight:
   - fix fbdev interactions

  atomic:
   - improve logging

  prime:
   - remove struct gem_prim_mmap plus driver updates

  gem:
   - drm_exec: add locking over multiple GEM objects
   - fix lockdep checking

  fbdev:
   - make fbdev userspace interfaces optional
   - use linux device instead of fbdev device
   - use deferred i/o helper macros in various drivers
   - Make FB core selectable without drivers
   - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT
   - Add helper macros and Kconfig tokens for DMA-allocated framebuffer

  ttm:
   - support init_on_free
   - swapout fixes

  panel:
   - panel-edp: Support AUO B116XAB01.4
   - Support Visionox R66451 plus DT bindings
   - ld9040:
      - Backlight support
      - magic improved
      - Kconfig fix
   - Convert to of_device_get_match_data()
   - Fix Kconfig dependencies
   - simple:
      - Set bpc value to fix warning
      - Set connector type for AUO T215HVN01
      - Support Innolux G156HCE-L01 plus DT bindings
   - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings
   - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings
   - sitronix-st7789v:
      - Support Inanbo T28CP45TN89 plus DT bindings
      - Support EDT ET028013DMA plus DT bindings
      - Various cleanups
   - edp: Add timings for N140HCA-EAC
   - Allow panels and touchscreens to power sequence together
   - Fix Innolux G156HCE-L01 LVDS clock

  bridge:
   - debugfs for chains support
   - dw-hdmi:
      - Improve support for YUV420 bus format
      - CEC suspend/resume
      - update EDID on HDMI detect
   - dw-mipi-dsi: Fix enable/disable of DSI controller
   - lt9611uxc: Use MODULE_FIRMWARE()
   - ps8640: Remove broken EDID code
   - samsung-dsim: Fix command transfer
   - tc358764:
      - Handle HS/VS polarity
      - Use BIT() macro
      - Various cleanups
   - adv7511: Fix low refresh rate
   - anx7625:
      - Switch to macros instead of hardcoded values
      - locking fixes
   - tc358767: fix hardware delays
   - sitronix-st7789v:
      - Support panel orientation
      - Support rotation property
      - Add support for Jasonic JT240MHQS-HWT-EK-E3 plus DT bindings

  amdgpu:
   - SDMA 6.1.0 support
   - HDP 6.1 support
   - SMUIO 14.0 support
   - PSP 14.0 support
   - IH 6.1 support
   - Lots of checkpatch cleanups
   - GFX 9.4.3 updates
   - Add USB PD and IFWI flashing documentation
   - GPUVM updates
   - RAS fixes
   - DRR fixes
   - FAMS fixes
   - Virtual display fixes
   - Soft IH fixes
   - SMU13 fixes
   - Rework PSP firmware loading for other IPs
   - Kernel doc fixes
   - DCN 3.0.1 fixes
   - LTTPR fixes
   - DP MST fixes
   - DCN 3.1.6 fixes
   - SMU 13.x fixes
   - PSP 13.x fixes
   - SubVP fixes
   - GC 9.4.3 fixes
   - Display bandwidth calculation fixes
   - VCN4 secure submission fixes
   - Allow building DC on RISC-V
   - Add visible FB info to bo_print_info
   - HBR3 fixes
   - GFX9 MCBP fix
   - GMC10 vmhub index fix
   - GMC11 vmhub index fix
   - Create a new doorbell manager
   - SR-IOV fixes
   - initial freesync panel replay support
   - revert zpos properly until igt regression is fixeed
   - use TTM to manage doorbell BAR
   - Expose both current and average power via hwmon if supported

  amdkfd:
   - Cleanup CRIU dma-buf handling
   - Use KIQ to unmap HIQ
   - GFX 9.4.3 debugger updates
   - GFX 9.4.2 debugger fixes
   - Enable cooperative groups fof gfx11
   - SVM fixes
   - Convert older APUs to use dGPU path like newer APUs
   - Drop IOMMUv2 path as it is no longer used
   - TBA fix for aldebaran

  i915:
   - ICL+ DSI modeset sequence
   - HDCP improvements
   - MTL display fixes and cleanups
   - HSW/BDW PSR1 restored
   - Init DDI ports in VBT order
   - General display refactors
   - Start using plane scale factor for relative data rate
   - Use shmem for dpt objects
   - Expose RPS thresholds in sysfs
   - Apply GuC SLPC min frequency softlimit correctly
   - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL
   - Fix a VMA UAF for multi-gt platform
   - Do not use stolen on MTL due to HW bug
   - Check HuC and GuC version compatibility on MTL
   - avoid infinite GPU waits due to premature release of request memory
   - Fixes and updates for GSC memory allocation
   - Display SDVO fixes
   - Take stolen handling out of FBC code
   - Make i915_coherent_map_type GT-centric
   - Simplify shmem_create_from_object map_type

  msm:
   - SM6125 MDSS support
   - DPU: SM6125 DPU support
   - DSI: runtime PM support, burst mode support
   - DSI PHY: SM6125 support in 14nm DSI PHY driver
   - GPU: prepare for a7xx
   - fix a690 firmware
   - disable relocs on a6xx and newer

  radeon:
   - Lots of checkpatch cleanups

  ast:
   - improve device-model detection
   - Represent BMV as virtual connector
   - Report DP connection status

  nouveau:
   - add new exec/bind interface to support Vulkan
   - document some getparam ioctls
   - improve VRAM detection
   - various fixes/cleanups
   - workraound DPCD issues

  ivpu:
   - MMU updates
   - debugfs support
   - Support vpu4

  virtio:
   - add sync object support

  atmel-hlcdc:
   - Support inverted pixclock polarity

  etnaviv:
   - runtime PM cleanups
   - hang handling fixes

  exynos:
   - use fbdev DMA helpers
   - fix possible NULL ptr dereference

  komeda:
   - always attach encoder

  omapdrm:
   - use fbdev DMA helpers
ingenic:
   - kconfig regmap fixes

  loongson:
   - support display controller

  mediatek:
   - Small mtk-dpi cleanups
   - DisplayPort: support eDP and aux-bus
   - Fix coverity issues
   - Fix potential memory leak if vmap() fail

  mgag200:
   - minor fixes

  mxsfb:
   - support disabling overlay planes

  panfrost:
   - fix sync in IRQ handling

  ssd130x:
   - Support per-controller default resolution plus DT bindings
   - Reduce memory-allocation overhead
   - Improve intermediate buffer size computation
   - Fix allocation of temporary buffers
   - Fix pitch computation
   - Fix shadow plane allocation

  tegra:
   - use fbdev DMA helpers
   - Convert to devm_platform_ioremap_resource()
   - support bridge/connector
   - enable PM

  tidss:
   - Support TI AM625 plus DT bindings
   - Implement new connector model plus driver updates

  vkms:
   - improve write back support
   - docs fixes
   - support gamma LUT

  zynqmp-dpsub:
   - misc fixes"

* tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm: (1327 commits)
  drm/gpuva_mgr: remove unused prev pointer in __drm_gpuva_sm_map()
  drm/tests/drm_kunit_helpers: Place correct function name in the comment header
  drm/nouveau: uapi: don't pass NO_PREFETCH flag implicitly
  drm/nouveau: uvmm: fix unset region pointer on remap
  drm/nouveau: sched: avoid job races between entities
  drm/i915: Fix HPD polling, reenabling the output poll work as needed
  drm: Add an HPD poll helper to reschedule the poll work
  drm/i915: Fix TLB-Invalidation seqno store
  drm/ttm/tests: Fix type conversion in ttm_pool_test
  drm/msm/a6xx: Bail out early if setting GPU OOB fails
  drm/msm/a6xx: Move LLC accessors to the common header
  drm/msm/a6xx: Introduce a6xx_llc_read
  drm/ttm/tests: Require MMU when testing
  drm/panel: simple: Fix Innolux G156HCE-L01 LVDS clock
  Revert "Revert "drm/amdgpu/display: change pipe policy for DCN 2.0""
  drm/amdgpu: Add memory vendor information
  drm/amd: flush any delayed gfxoff on suspend entry
  drm/amdgpu: skip fence GFX interrupts disable/enable for S0ix
  drm/amdgpu: Remove gfxoff check in GFX v9.4.3
  drm/amd/pm: Update pci link speed for smu v13.0.6
  ...
2023-08-30 13:34:34 -07:00
Hugo Villeneuve
35b464e32c auxdisplay: hd44780: move cursor home after clear display command
The DISPLAY_CLEAR command on the NewHaven NHD-0220DZW-AG5 display
does NOT change the DDRAM address to 00h (home position) like the
standard Hitachi HD44780 controller. As a consequence, the starting
position of the initial string LCD_INIT_TEXT is not guaranteed to be
at 0,0 depending on where the cursor was before the DISPLAY_CLEAR
command.

Extract of DISPLAY_CLEAR command from datasheets of:

    Hitachi HD44780:
        ... It then sets DDRAM address 0 into the address counter...

    NewHaven NHD-0220DZW-AG5 datasheet:
	... This instruction does not change the DDRAM Address

Move the cursor home after sending DISPLAY_CLEAR command to support
non-standard LCDs.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: David Reaver <me@davidreaver.com>
Link: https://lore.kernel.org/r/20230722180925.1408885-1-hugo@hugovil.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2023-08-19 21:53:49 +02:00
Thomas Zimmermann
8920157acb auxdisplay: Remove flag FBINFO_FLAG_DEFAULT from fbdev drivers
The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
fbinfo.flags has been allocated to zero by framebuffer_alloc(). So do
not set it.

Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.

v2:
	* fix commit message (Miguel)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Robin van der Gracht <robin@protonic.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-10-tzimmermann@suse.de
2023-07-24 16:50:39 +02:00