Commit Graph

19 Commits

Author SHA1 Message Date
Minghao Chi (CGEL ZTE)
c5a3106aa4
spi: Use of_device_get_match_data()
Use of_device_get_match_data() to simplify the code.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/r/20220221020233.1925154-1-chi.minghao@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-21 13:25:19 +00:00
Barry Song
7349201d9d
spi: lantiq: remove redundant irqsave and irqrestore in hardIRQ
Running in hardIRQ, disabling irq is redundant.

Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Link: https://lore.kernel.org/r/20200916101042.21860-1-song.bao.hua@hisilicon.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-17 19:56:02 +01:00
Linus Torvalds
3f9df56480 sound updates for 5.9
This became wide and scattered updates all over the sound tree as
 diffstat shows: lots of (still ongoing) refactoring works in ASoC,
 fixes and cleanups caught by static analysis, inclusive term
 conversions as well as lots of new drivers.  Below are highlights:
 
 ASoC core:
 * API cleanups and conversions to the unified mute_stream() call
 * Simplify I/O helper functions
 * Use helper macros to retrieve RTD from substreams
 
 ASoC drivers:
 * Lots of fixes and cleanups in Intel ASoC drivers
 * Lots of new stuff: Freescale MQS and i.MX6sx, Intel KeemBay I2S,
   Maxim MAX98360A and MAX98373 SoundWire, various Mediatek boards,
   nVidia Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries
   boards, TI J721e EVM
 
 ALSA core:
 * Minor code refacotring for SG-buffer handling
 
 HD-audio:
 * Generalization of mute-LED handling with LED classdev
 * Intel silent stream support for HDMI
 * Device-specific fixes: CA0132, Loongson-3
 
 Others:
 * Usual USB- and HD-audio quirks for various devices
 * Fixes for echoaudio DMA position handling
 * Various documents and trivial fixes for sparse warnings
 * Conversion to adapt inclusive terms
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Merge tag 'sound-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This became wide and scattered updates all over the sound tree as
  diffstat shows: lots of (still ongoing) refactoring works in ASoC,
  fixes and cleanups caught by static analysis, inclusive term
  conversions as well as lots of new drivers. Below are highlights:

  ASoC core:
   - API cleanups and conversions to the unified mute_stream() call
   - Simplify I/O helper functions
   - Use helper macros to retrieve RTD from substreams

  ASoC drivers:
   - Lots of fixes and cleanups in Intel ASoC drivers
   - Lots of new stuff: Freescale MQS and i.MX6sx, Intel KeemBay I2S,
     Maxim MAX98360A and MAX98373 SoundWire, various Mediatek boards,
     nVidia Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries
     boards, TI J721e EVM

  ALSA core:
   - Minor code refacotring for SG-buffer handling

  HD-audio:
   - Generalization of mute-LED handling with LED classdev
   - Intel silent stream support for HDMI
   - Device-specific fixes: CA0132, Loongson-3

  Others:
   - Usual USB- and HD-audio quirks for various devices
   - Fixes for echoaudio DMA position handling
   - Various documents and trivial fixes for sparse warnings
   - Conversion to adopt inclusive terms"

* tag 'sound-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (479 commits)
  ALSA: pci: delete repeated words in comments
  ALSA: isa: delete repeated words in comments
  ALSA: hda/tegra: Add 100us dma stop delay
  ALSA: hda: Add dma stop delay variable
  ASoC: hda/tegra: Set buffer alignment to 128 bytes
  ALSA: seq: oss: Serialize ioctls
  ALSA: hda/hdmi: Add quirk to force connectivity
  ALSA: usb-audio: add startech usb audio dock name
  ALSA: usb-audio: Add support for Lenovo ThinkStation P620
  Revert "ALSA: hda: call runtime_allow() for all hda controllers"
  ALSA: hda/ca0132 - Fix AE-5 microphone selection commands.
  ALSA: hda/ca0132 - Add new quirk ID for Recon3D.
  ALSA: hda/ca0132 - Fix ZxR Headphone gain control get value.
  ALSA: hda/realtek: Add alc269/alc662 pin-tables for Loongson-3 laptops
  ALSA: docs: fix typo
  ALSA: doc: use correct config variable name
  ASoC: core: Two step component registration
  ASoC: core: Simplify snd_soc_component_initialize declaration
  ASoC: core: Relocate and expose snd_soc_component_initialize
  ASoC: sh: Replace 'select' DMADEVICES 'with depends on'
  ...
2020-08-06 14:27:31 -07:00
Dilip Kota
040f7f9729
spi: lantiq: Add support to Lightning Mountain SoC
Add support to SPI controller on Intel Atom based Lightning Mountain SoC
which reuses Lantiq SPI controller IP.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Link: https://lore.kernel.org/r/4d61a75381aca9479f9fc15d07a7b05534da6bb3.1594957019.git.eswara.kota@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-22 01:55:59 +01:00
Dilip Kota
744cd0f212
spi: lantiq: Move interrupt configuration to SoC specific data structure
Moving interrupt configuration to SoC specific data structure helps to add
support for newer SoCs on which SPI controller with lesser interrupt lines
compared to existing chipsets.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Link: https://lore.kernel.org/r/7eb6d863515245fedfa0296c72082df107367d07.1594957019.git.eswara.kota@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-22 01:55:58 +01:00
Dilip Kota
8743d2155a
spi: lantiq: Add fifo size bit mask in SoC specific data structure
On newer chipsets, SPI controller has fifos of larger size.
So add the fifo size bit mask entry in SoC specific data structure.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Link: https://lore.kernel.org/r/a0889abf17a9fbc7077f10be0f0342b7ebdf9361.1594957019.git.eswara.kota@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-22 01:55:57 +01:00
Dilip Kota
94eca904cb
spi: lantiq: Add support to acknowledge interrupt
On newer chipsets interrupt need to be acknowledged as they use
different interrupt controller which does not acknowledge the
interrupts automatically.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Link: https://lore.kernel.org/r/608923b484d9ef239b44bb545c0b79b27030a6ae.1594957019.git.eswara.kota@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-22 01:55:56 +01:00
Dilip Kota
8d19d665e0
spi: lantiq: Move interrupt control register offesets to SoC specific data structure
Address of Interrupt control registers are different on new chipsets.
So move them to SoC specific data structure.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Link: https://lore.kernel.org/r/f0f9723a30ea9c2ee48d2199f7512af9e15803b0.1594957019.git.eswara.kota@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-22 01:55:55 +01:00
Dilip Kota
ddf41bf782
spi: lantiq: Add SMP support
Existing driver supports only single core SoC. New multicore platforms uses
the same driver/IP so SMP support is required. This patch adds multicore
support in the driver.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Link: https://lore.kernel.org/r/d6663296b41f102c582fda08e71f62b72ca05d5d.1594957019.git.eswara.kota@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-22 01:55:54 +01:00
Dilip Kota
661ccf2b3f
spi: lantiq: fix: Rx overflow error in full duplex mode
In full duplex mode, rx overflow error is observed. To overcome the error,
wait until the complete data got received and proceed further.

Fixes: 17f84b793c ("spi: lantiq-ssc: add support for Lantiq SSC SPI controller")
Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Link: https://lore.kernel.org/r/efb650b0faa49a00788c4e0ca8ef7196bdba851d.1594957019.git.eswara.kota@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-22 01:55:53 +01:00
Hauke Mehrtens
ba3548cf29
spi: lantiq-ssc: Fix warning by using WQ_MEM_RECLAIM
The lantiq-ssc driver uses internally an own workqueue to wait till the
data is not only written out of the FIFO but really written to the wire.
This workqueue is flushed while the SPI subsystem is working in some
other system workqueue.

The system workqueue is marked as WQ_MEM_RECLAIM, but the workqueue in
the lantiq-ssc driver does not use WQ_MEM_RECLAIM for now. Add this flag
too to prevent this warning.

This fixes the following warning:
[    2.975956] WARNING: CPU: 1 PID: 17 at kernel/workqueue.c:2614 check_flush_dependency+0x168/0x184
[    2.984752] workqueue: WQ_MEM_RECLAIM kblockd:blk_mq_run_work_fn is flushing !WQ_MEM_RECLAIM 1e100800.spi:0x0

Fixes: 891b7c5fbf ("mtd_blkdevs: convert to blk-mq")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Link: https://lore.kernel.org/r/20200717215648.20522-1-hauke@hauke-m.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20 14:36:18 +01:00
Linus Walleij
95f2fd2e52
spi: lantiq-ssc: Convert to use GPIO descriptors
This switches the Lantiq SSC driver over to use GPIO descriptor
handling in the core.

The driver was already utilizing the core to look up and request
GPIOs from the device tree so this is a pretty small change
just switching it over to use descriptors directly instead.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Link: https://lore.kernel.org/r/20200625202149.209276-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-01 23:21:30 +01:00
Markus Elfring
22262695f4
spi: lantiq-ssc: Use devm_platform_ioremap_resource() in lantiq_ssc_probe()
Simplify this function implementation by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://lore.kernel.org/r/230495a7-b754-bc6a-05e0-059a6b6c643d@web.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-01 12:34:18 +01:00
Stephen Boyd
6b8ac10e0d
spi: Remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: Mark Brown <broonie@kernel.org>
Cc: linux-spi@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20190730181557.90391-42-swboyd@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-02 12:15:43 +01:00
Thomas Gleixner
7876981a65 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 352
Based on 1 normalized pattern(s):

  this program is free software you can distribute it and or modify it
  under the terms of the gnu general public license version 2 as
  published by the free software foundation

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 2 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081035.310807637@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:09 +02:00
Mark Brown
a2d5eda072 Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/imx' and 'spi/topic/lantiq' into spi-next 2017-04-26 15:58:04 +01:00
Hauke Mehrtens
ad2fca0721 spi: lantiq-ssc: add LTQ_ prefix to defines
The blackfin architecture has a SPI_STAT define which conflicts with
the define from the spi-lantiq-ssc driver in compile test mode. Fix
this by adding a prefix in front of every define.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-03-01 11:43:03 +00:00
kbuild test robot
a5b0443c9b spi: lantiq-ssc: fix platform_no_drv_owner.cocci warnings
drivers/spi/spi-lantiq-ssc.c:973:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-21 09:49:58 -08:00
Hauke Mehrtens
17f84b793c spi: lantiq-ssc: add support for Lantiq SSC SPI controller
This driver supports the Lantiq SSC SPI controller in master
mode. This controller is found on Intel (former Lantiq) SoCs like
the Danube, Falcon, xRX200, xRX300.

The hardware uses two hardware FIFOs one for received and one for
transferred bytes. When the driver writes data into the transmit FIFO
the complete word is taken from the FIFO into a shift register. The
data from this shift register is then written to the wire. This driver
uses the interrupts signaling the status of the FIFOs and not the shift
register. It is also possible to use the interrupts for the shift
register, but they will send a signal after every word. When using the
interrupts for the shift register we get a signal when the last word is
written into the shift register and not when it is written to the wire.
After all FIFOs are empty the driver busy waits till the hardware is
not busy any more and returns the transfer status.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-14 17:10:40 +00:00