Commit Graph

96 Commits

Author SHA1 Message Date
Bartosz Golaszewski
6b49d4fbcb ARM: davinci: remove legacy timer support
All platforms have now been switched to the new clocksource driver.
Remove the old code and various no longer needed bits and pieces.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2020-01-13 13:20:00 +05:30
Olof Johansson
d5d3652af1 DaVinci fixes for v5.2 kernel.
This addresses an issue with probe of IO expander on DA850 EVM. There is
 also a WARN_ON() fix on DA850 and DA830 devices.
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Merge tag 'davinci-fixes-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes

DaVinci fixes for v5.2 kernel.

This addresses an issue with probe of IO expander on DA850 EVM. There is
also a WARN_ON() fix on DA850 and DA830 devices.

* tag 'davinci-fixes-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
  ARM: davinci: da850-evm: call regulator_has_full_constraints()

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-16 13:33:13 -07:00
Bartosz Golaszewski
68f2515bb3 ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
The lcdc device is missing the dma_coherent_mask definition causing the
following warning on da850-evm:

da8xx_lcdc da8xx_lcdc.0: found Sharp_LK043T1DG01 panel
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at kernel/dma/mapping.c:247 dma_alloc_attrs+0xc8/0x110
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Not tainted 5.2.0-rc3-00077-g16d72dd4891f #18
Hardware name: DaVinci DA850/OMAP-L138/AM18x EVM
[<c000fce8>] (unwind_backtrace) from [<c000d900>] (show_stack+0x10/0x14)
[<c000d900>] (show_stack) from [<c001a4f8>] (__warn+0xec/0x114)
[<c001a4f8>] (__warn) from [<c001a634>] (warn_slowpath_null+0x3c/0x48)
[<c001a634>] (warn_slowpath_null) from [<c0065860>] (dma_alloc_attrs+0xc8/0x110)
[<c0065860>] (dma_alloc_attrs) from [<c02820f8>] (fb_probe+0x228/0x5a8)
[<c02820f8>] (fb_probe) from [<c02d3e9c>] (platform_drv_probe+0x48/0x9c)
[<c02d3e9c>] (platform_drv_probe) from [<c02d221c>] (really_probe+0x1d8/0x2d4)
[<c02d221c>] (really_probe) from [<c02d2474>] (driver_probe_device+0x5c/0x168)
[<c02d2474>] (driver_probe_device) from [<c02d2728>] (device_driver_attach+0x58/0x60)
[<c02d2728>] (device_driver_attach) from [<c02d27b0>] (__driver_attach+0x80/0xbc)
[<c02d27b0>] (__driver_attach) from [<c02d047c>] (bus_for_each_dev+0x64/0xb4)
[<c02d047c>] (bus_for_each_dev) from [<c02d1590>] (bus_add_driver+0xe4/0x1d8)
[<c02d1590>] (bus_add_driver) from [<c02d301c>] (driver_register+0x78/0x10c)
[<c02d301c>] (driver_register) from [<c000a5c0>] (do_one_initcall+0x48/0x1bc)
[<c000a5c0>] (do_one_initcall) from [<c05cae6c>] (kernel_init_freeable+0x10c/0x1d8)
[<c05cae6c>] (kernel_init_freeable) from [<c048a000>] (kernel_init+0x8/0xf4)
[<c048a000>] (kernel_init) from [<c00090e0>] (ret_from_fork+0x14/0x34)
Exception stack(0xc6837fb0 to 0xc6837ff8)
7fa0:                                     00000000 00000000 00000000 00000000
7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7fe0: 00000000 00000000 00000000 00000000 00000013 00000000
---[ end trace 8a8073511be81dd2 ]---

Add a 32-bit mask to the platform device's definition.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-06-14 16:20:34 +05:30
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
Stephen Boyd
62e59c4e69 clk: Remove io.h from clk-provider.h
Now that we've gotten rid of clk_readl() we can remove io.h from the
clk-provider header and push out the io.h include to any code that isn't
already including the io.h header but using things like readl/writel,
etc.

Found with this grep:

  git grep -l clk-provider.h | grep '.c$' | xargs git grep -L 'linux/io.h' | \
  	xargs git grep -l \
	-e '\<__iowrite32_copy\>' --or \
	-e '\<__ioread32_copy\>' --or \
	-e '\<__iowrite64_copy\>' --or \
	-e '\<ioremap_page_range\>' --or \
	-e '\<ioremap_huge_init\>' --or \
	-e '\<arch_ioremap_pud_supported\>' --or \
	-e '\<arch_ioremap_pmd_supported\>' --or \
	-e '\<devm_ioport_map\>' --or \
	-e '\<devm_ioport_unmap\>' --or \
	-e '\<IOMEM_ERR_PTR\>' --or \
	-e '\<devm_ioremap\>' --or \
	-e '\<devm_ioremap_nocache\>' --or \
	-e '\<devm_ioremap_wc\>' --or \
	-e '\<devm_iounmap\>' --or \
	-e '\<devm_ioremap_release\>' --or \
	-e '\<devm_memremap\>' --or \
	-e '\<devm_memunmap\>' --or \
	-e '\<__devm_memremap_pages\>' --or \
	-e '\<pci_remap_cfgspace\>' --or \
	-e '\<arch_has_dev_port\>' --or \
	-e '\<arch_phys_wc_add\>' --or \
	-e '\<arch_phys_wc_del\>' --or \
	-e '\<memremap\>' --or \
	-e '\<memunmap\>' --or \
	-e '\<arch_io_reserve_memtype_wc\>' --or \
	-e '\<arch_io_free_memtype_wc\>' --or \
	-e '\<__io_aw\>' --or \
	-e '\<__io_pbw\>' --or \
	-e '\<__io_paw\>' --or \
	-e '\<__io_pbr\>' --or \
	-e '\<__io_par\>' --or \
	-e '\<__raw_readb\>' --or \
	-e '\<__raw_readw\>' --or \
	-e '\<__raw_readl\>' --or \
	-e '\<__raw_readq\>' --or \
	-e '\<__raw_writeb\>' --or \
	-e '\<__raw_writew\>' --or \
	-e '\<__raw_writel\>' --or \
	-e '\<__raw_writeq\>' --or \
	-e '\<readb\>' --or \
	-e '\<readw\>' --or \
	-e '\<readl\>' --or \
	-e '\<readq\>' --or \
	-e '\<writeb\>' --or \
	-e '\<writew\>' --or \
	-e '\<writel\>' --or \
	-e '\<writeq\>' --or \
	-e '\<readb_relaxed\>' --or \
	-e '\<readw_relaxed\>' --or \
	-e '\<readl_relaxed\>' --or \
	-e '\<readq_relaxed\>' --or \
	-e '\<writeb_relaxed\>' --or \
	-e '\<writew_relaxed\>' --or \
	-e '\<writel_relaxed\>' --or \
	-e '\<writeq_relaxed\>' --or \
	-e '\<readsb\>' --or \
	-e '\<readsw\>' --or \
	-e '\<readsl\>' --or \
	-e '\<readsq\>' --or \
	-e '\<writesb\>' --or \
	-e '\<writesw\>' --or \
	-e '\<writesl\>' --or \
	-e '\<writesq\>' --or \
	-e '\<inb\>' --or \
	-e '\<inw\>' --or \
	-e '\<inl\>' --or \
	-e '\<outb\>' --or \
	-e '\<outw\>' --or \
	-e '\<outl\>' --or \
	-e '\<inb_p\>' --or \
	-e '\<inw_p\>' --or \
	-e '\<inl_p\>' --or \
	-e '\<outb_p\>' --or \
	-e '\<outw_p\>' --or \
	-e '\<outl_p\>' --or \
	-e '\<insb\>' --or \
	-e '\<insw\>' --or \
	-e '\<insl\>' --or \
	-e '\<outsb\>' --or \
	-e '\<outsw\>' --or \
	-e '\<outsl\>' --or \
	-e '\<insb_p\>' --or \
	-e '\<insw_p\>' --or \
	-e '\<insl_p\>' --or \
	-e '\<outsb_p\>' --or \
	-e '\<outsw_p\>' --or \
	-e '\<outsl_p\>' --or \
	-e '\<ioread8\>' --or \
	-e '\<ioread16\>' --or \
	-e '\<ioread32\>' --or \
	-e '\<ioread64\>' --or \
	-e '\<iowrite8\>' --or \
	-e '\<iowrite16\>' --or \
	-e '\<iowrite32\>' --or \
	-e '\<iowrite64\>' --or \
	-e '\<ioread16be\>' --or \
	-e '\<ioread32be\>' --or \
	-e '\<ioread64be\>' --or \
	-e '\<iowrite16be\>' --or \
	-e '\<iowrite32be\>' --or \
	-e '\<iowrite64be\>' --or \
	-e '\<ioread8_rep\>' --or \
	-e '\<ioread16_rep\>' --or \
	-e '\<ioread32_rep\>' --or \
	-e '\<ioread64_rep\>' --or \
	-e '\<iowrite8_rep\>' --or \
	-e '\<iowrite16_rep\>' --or \
	-e '\<iowrite32_rep\>' --or \
	-e '\<iowrite64_rep\>' --or \
	-e '\<__io_virt\>' --or \
	-e '\<pci_iounmap\>' --or \
	-e '\<virt_to_phys\>' --or \
	-e '\<phys_to_virt\>' --or \
	-e '\<ioremap_uc\>' --or \
	-e '\<ioremap\>' --or \
	-e '\<__ioremap\>' --or \
	-e '\<iounmap\>' --or \
	-e '\<ioremap\>' --or \
	-e '\<ioremap_nocache\>' --or \
	-e '\<ioremap_uc\>' --or \
	-e '\<ioremap_wc\>' --or \
	-e '\<ioremap_wc\>' --or \
	-e '\<ioremap_wt\>' --or \
	-e '\<ioport_map\>' --or \
	-e '\<ioport_unmap\>' --or \
	-e '\<ioport_map\>' --or \
	-e '\<ioport_unmap\>' --or \
	-e '\<xlate_dev_kmem_ptr\>' --or \
	-e '\<xlate_dev_mem_ptr\>' --or \
	-e '\<unxlate_dev_mem_ptr\>' --or \
	-e '\<virt_to_bus\>' --or \
	-e '\<bus_to_virt\>' --or \
	-e '\<memset_io\>' --or \
	-e '\<memcpy_fromio\>' --or \
	-e '\<memcpy_toio\>'

I also reordered a couple includes when they weren't alphabetical and
removed clk.h from kona, replacing it with clk-provider.h because
that driver doesn't use clk consumer APIs.

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: John Crispin <john@phrozen.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-15 13:21:37 -07:00
Bartosz Golaszewski
544ca0b0d8 ARM: davinci: make irqs.h a local header
The existence of irqs.h in mach-davinci/include/mach only makes sense
without SPARSE_IRQ as it's then expected to define NR_IRQS and is
included from asm/irq.h. As we now support SPARSE_IRQ, this header can
be moved to mach-davinci and used as the source of HW interrupt numbers.

While updating the includes in various files - also rearrange the
headers by directory (linux/asm/mach).

Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19 19:44:02 +05:30
Bartosz Golaszewski
e87addec38 ARM: davinci: select SPARSE_IRQ
Everything is in place now for SPARSE_IRQ. Select it and set
DAVINCI_INTC_START to NR_IRQS.

We now need to include mach/irqs.h in a couple places as it is no
longer indirectly included after selecting SPARSE_IRQ.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19 19:41:07 +05:30
Bartosz Golaszewski
a98ca73ee3 ARM: davinci: wrap HW interrupt numbers with a macro
Once we select SPARSE_IRQ, the interrupt numbers defined in mach/irqs.h
will only signify the hardware interrupt offsets, not the interrupt
numbers seen by linux. Introduce a wrapper macro that translates the
hwirq number to virtual numbers. For now it's just a dummy. Use that
macro when specifying the interrupts in resources for platform devices.

Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19 19:40:52 +05:30
Bartosz Golaszewski
58a0afbf4c ARM: davinci: da8xx: define gpio interrupts as separate resources
Since commit eb3744a2dd ("gpio: davinci: Do not assume continuous
IRQ numbering") the davinci GPIO driver fails to probe if we boot
in legacy mode from any of the board files. Since the driver now
expects every interrupt to be defined as a separate resource, split
the definition of IRQ resources instead of having a single continuous
interrupt range.

Fixes: eb3744a2dd ("gpio: davinci: Do not assume continuous IRQ numbering")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2018-11-26 16:45:09 +05:30
David Lechner
c0c3fb1a15 ARM: davinci: da8xx: Remove legacy USB and SATA clock init
This removes the unused legacy USB and SATA clock init code from
arch/arm/mach-davinci/{devices,usb}-da8xx}.c.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2018-06-26 16:13:52 +05:30
David Lechner
aa1da33c09 ARM: davinci: da8xx: add new sata_refclk init using common clock framework
This adds the new SATA REFCLK clock init in mach-davinci/devices-da8xx.c
using the new common clock framework drivers.

The #ifdefs are needed to prevent compile errors until the entire
ARCH_DAVINCI is converted.

Also, the #includes are sorted since we are adding some here.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2018-06-26 15:50:38 +05:30
David Lechner
f6adc9fd1f ARM: davinci: da8xx: simplify CFGCHIP regmap_config
Since commit 8253bb3f82 ("regmap: potentially duplicate the name
string stored in regmap"), the name field of struct regmap_config
is copied in __regmap_init(), so we no longer need to worry about
keeping our own copy of the name.

Just use a string literal in the initialization of da8xx_cfgchip_config
instead of creating a separate variable for the name.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2018-03-29 12:19:12 +05:30
David Lechner
94f2e94514 ARM: davinci: remove watchdog reset
This removes the watchdog reset code. The reset has been moved to
drivers/watchdog/davinci_wdt.c. The watchdog driver registers the reset
with the kernel so defining a reset for each machine is no longer needed.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2018-02-19 16:25:15 +05:30
David Lechner
bdec5a6b57 ARM: da8xx: use platform data for CFGCHIP syscon regmap
This converts from using a platform device for the CFGCHIP syscon
regmap to using platform data to pass the regmap to consumers.

A lazy getter function is used so that the regmap will only be
created if it is actually used. This function will also be used
in the clock init when we convert to the common clock framework.

The USB PHY driver is currently the only consumer. This driver is
updated to use platform data to get the CFGCHIP regmap instead of
syscon_regmap_lookup_by_pdevname().

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2018-02-19 16:19:25 +05:30
Vasyl Gomonovych
a8bc4f0a5d ARM: davinci: Use PTR_ERR_OR_ZERO()
Fix ptr_ret.cocci warnings:
arch/arm/mach-davinci/devices-da8xx.c:255:8-14: WARNING: PTR_ERR_OR_ZERO can be used
arch/arm/mach-davinci/devices-da8xx.c:300:8-14: WARNING: PTR_ERR_OR_ZERO can be used
arch/arm/mach-davinci/dm646x.c:952:8-14: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

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

Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-12-23 15:46:25 +05:30
Suman Anna
14ff86bc76 ARM: davinci: da8xx: Add DSP internal RAM memories as IOMEM resources
The DSP subsystem on DA8xx has various internal RAM memories that can
accessed from the ARM side. These memories can be configured to be
used as either RAM or Cache. Add these memories as IOMEM resources
to the DSP device so that the driver can support loading of images
into internal memories.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-05-22 14:47:44 +05:30
Suman Anna
6724a05ff3 ARM: davinci: da8xx: Add names to DSP IOMEM resources
Add names to the IOMEM resources for the DSP device present on
DA8xx SoCs. This will facilitate the driver to use the names and
be agnostic of the resource order, and facilitate scalable DT
support in follow-up patches.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-05-22 14:47:44 +05:30
Suman Anna
f97f03578b ARM: davinci: da8xx: Create DSP device only when assigned memory
The DSP device on Davinci platforms does not have an MMU and requires
specific DDR memory to boot. This memory is reserved using the rproc_mem
kernel boot parameter and is assigned to the device on non-DT boots.
The remoteproc core uses the DMA API and so will fall back to assigning
random memory if this memory is not assigned to the device, but the DSP
remote processor boot will not be successful in such cases. So, check
that memory has been reserved and assigned to the device specifically
before even creating the DSP device.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-05-22 14:47:44 +05:30
Bartosz Golaszewski
a303588685 ARM: davinci: remove BUG_ON() from da850_register_sata()
The ahci driver now supports other refclk clock rates.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-31 20:48:25 +05:30
Bartosz Golaszewski
00bacfbfaf ARM: davinci: da850: model the SATA refclk
Register a fixed rate clock modelling the external SATA oscillator
for da850 (both DT and board file mode).

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-31 20:48:24 +05:30
David Lechner
0fcd54112a ARM: davinci: da8xx: Add CFGCHIP syscon platform device
The CFGCHIP registers are used by a number of devices, so use a syscon
device to share them. The first consumer of this will be the phy-da8xx-usb
driver.

Add the syscon device and register it.

Signed-off-by: David Lechner <david@lechnology.com>
[nsekhar@ti.com: minor commit message fixes]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-10-31 16:58:21 +05:30
Peter Ujfalusi
7dcdfef19a ARM: davinci: devices-da8xx: Remove DMA resources for MMC and SPI
The drivers are now converted to not use the DMA resource.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-10-26 13:42:53 +05:30
David Lechner
d0071281cf ARM: davinci: remove mmc dma resources
The davinci_mmc driver no longer uses platform resources for getting dma
channels. Instead lookup is now done using dma_slave_map.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-02 10:33:20 +02:00
Peter Ujfalusi
1ce9300bf7 ARM: davinci: devices-da8xx: Add dma_slave_map to edma
Provide the dma_slave_map to edma which will allow us to move the drivers
to the new, simpler dmaengine API and we can remove the DMA resources also
for the devices.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[nsekhar@ti.com: fix map for edma1]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-02-22 15:39:39 +05:30
Arnd Bergmann
3acf731cca ARM: davinci: make headers more local
Some header files are never included outside of a mach-davinci
directory and do not need to be made visible in include/mach,
so let's just move them all down one level.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sekhar Nori <nsekhar@ti.com>
2015-12-01 21:52:51 +01:00
Peter Ujfalusi
cef5b0da40 ARM: davinci: Add dma_mask to eDMA devices
The upcoming change to merge the arch/arm/common/edma.c into
drivers/dma/edma.c will need this change when booting daVinci devices in
no DT mode.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-10-14 19:57:11 +05:30
Peter Ujfalusi
7ab388e85f ARM: davinci: Use platform_device_register_full() to create pdev for eDMA
Convert the eDMA platform device creation to use
struct platform_device_info XXXXXX __initconst and
platform_device_register_full()
This will allow us to cleanly specify the dma_mask for the devices in an
upcoming patch.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-10-14 19:57:11 +05:30
Peter Ujfalusi
d4cb7f4042 ARM: davinci/common: Convert edma driver to handle one eDMA instance per driver
Currently we have one device created to handle all (maximum 2) eDMAs in the
system.
With this change all eDMA instance will have it's own device/driver.
This change is needed for further cleanups in the eDMA driver stack since
the one device/driver to handle all eDMAs in the system was not flexible
enough and prevents the upcoming work.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-10-14 19:57:11 +05:30
Franklin S Cooper Jr
1b0838b5a7 ARM: davinci: Set proper SPI prescale limit value
SPI Davinci driver has been updated to allow SOCs to specify their minimum
prescale value. Update the various SOCs board files that use this driver with
their proper prescaler limit.

Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-14 20:34:47 +01:00
Peter Ujfalusi
3775c31376 ARM: davinci: devices-da8xx: Add support for McASP2 on da830
da830 has three McASP blocks.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:05 +05:30
Peter Ujfalusi
c96aacb132 ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation
Both DA830 and DA850 has McASP0 module, so do not restrict the use of
McASP0 for da850 only.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:04 +05:30
Peter Ujfalusi
80f7d0e03e ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs
On da8xx McASP TX/RX interrupt requests are combined.
The interrupt can be used for error recovery.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:04 +05:30
Peter Ujfalusi
184981d204 ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request
Add "tx" or "rx" as resource name for the DMA resources.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:04 +05:30
Peter Ujfalusi
d5fc0e8dd9 ARM: davinci: Remove redundant/unused parameters for edma
The following parameters are no longer needed by the edma driver since the
information can be obtained from the IP's CCCFG register:
n_channel, n_region, n_slot and n_tc.
Remove the initialization of n_cc as well since in this context it has no
meaning. We have separate edma_soc_info struct/eDMA3_CC instance so this
member does not make any sense (and the driver no longer uses it).

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:55:23 +05:30
Peter Ujfalusi
82ba612284 ARM: davinci: Remove eDMA3 queue_tc_mapping data from edma_soc_info
It is ignored by the edma driver since we are just setting back the default
mapping of TC -> Queue.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 10:47:46 +05:30
Bartlomiej Zolnierkiewicz
080c492df0 ARM: davinci: da850: update SATA AHCI support
Update SATA AHCI support to make use of the new ahci_da850 host
driver (instead of the generic ahci_platform one) and remove
deprecated ahci_platform_data code.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2014-03-25 15:17:13 -04:00
Kevin Hilman
cd2f43a1f7 This patch updates the davinci watchdog
platform device name from generic "watchdog"
 to something more specific.
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Merge tag 'davinci-for-v3.14/watchdog' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers

From Sekhar Nori:
This patch updates the davinci watchdog
platform device name from generic "watchdog"
to something more specific.

* tag 'davinci-for-v3.14/watchdog' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  watchdog: davinci: rename platform driver to davinci-wdt

Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-01-16 13:59:52 -08:00
Ivan Khoronzhuk
843748123d watchdog: davinci: rename platform driver to davinci-wdt
As we switch to use the watchdog core which permits more than one
active watchdog in the system, rename platform driver to
"davinci-wdt" to be identifiable.

Acked-by: Wim Van Sebroeck <wim@iguana.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-01-09 16:48:31 +05:30
Peter Ujfalusi
ee880dbd16 ARM: davinci: Fix McASP mem resource names
The ASoC McASP driver looks for the mem resources by name
"mpu" and "dat" regions.
Change/add the needed name for the mem resources so the driver can pick the
correct resource.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-12-05 03:02:20 +05:30
KV Sujith
f606d38de7 ARM: davinci: da8xx: support gpio platform device
DaVinci GPIO driver now uses platform device model.
Convert DA8XX SoC code to use the new model.

Add da8xx_register_gpio() to create platform device for da8xx
platforms.

Signed-off-by: KV Sujith <sujithkv@ti.com>
Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[nsekhar@ti.com: simplify commit message]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
2013-09-24 10:48:44 +05:30
Lad, Prabhakar
46c1833467 ARM: davinci: fix clock lookup for mdio device
This patch removes the clock alias for mdio device and adds a entry
in clock lookup table, this entry can now be used by both DT and
non-DT case.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-08-22 00:39:01 +05:30
Hebbar Gururaja
79eb16366b ARM: davinci: da8xx: remove hard coding of rtc device wakeup
Since now rtc-omap driver itself calls deice_init_wakeup(dev, true),
duplicate call from the rtc device registration can be removed.

This is basically a partial revert of the prev commit

commit 75c99bb000
Author: Sekhar Nori <nsekhar@ti.com>

    davinci: da8xx/omap-l1: mark RTC as a wakeup source

Signed-off-by: Hebbar Gururaja <gururaja.hebbar@ti.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-08-22 00:39:00 +05:30
Manjunathappa, Prakash
19955c3d74 ARM: davinci: uart: move to devid based clk_get
For modules having single clock, clk_get should be done with dev_id.
But current davinci implementation handles multiple instances
of the UART devices with single platform_device_register. Hence clk_get
is based on con_id rather than dev_id, this is not correct. Do
platform_device_register for each instance and clk_get on dev_id.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
[nsekhar@ti.com: actually stop using con_id in clk_get(), squash the
		 patch adding OF aux data into this one]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-07-22 15:34:55 +05:30
Robin Holt
7b6d864b48 reboot: arm: change reboot_mode to use enum reboot_mode
Preparing to move the parsing of reboot= to generic kernel code forces
the change in reboot_mode handling to use the enum.

[akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c]
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-09 10:33:29 -07:00
Matt Porter
6cba435506 ARM: edma: Add DT and runtime PM support to the private EDMA API
Adds support for parsing the TI EDMA DT data into the required EDMA
private API platform data. Enables runtime PM support to initialize
the EDMA hwmod. Enables build on OMAP.

Changes by Joel:
* Setup default one-to-one mapping for queue_priority and queue_tc
mapping as discussed in [1].
* Split out xbar stuff to separate patch. [1]
* Dropped unused DT helper to convert to array
* Fixed dangling pointer issue with Sekhar's changes

[1] https://patchwork.kernel.org/patch/2226761/

Signed-off-by: Matt Porter <mporter@ti.com>
[nsekhar@ti.com: fix checkpatch errors, build breakages. Introduce
edma_setup_info_from_dt() as part of that effort]
Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-06-24 14:08:26 +05:30
Robert Tivy
5c71d6181f ARM: davinci: da8xx: add remoteproc support
Add remoteproc platform device for controlling the DSP
on da8xx. The patch uses CMA-based reservation of physical
memory block for DSP use. A new kernel command-line parameter
has been added to allow boot-time specification of the physical
memory block.

Signed-off-by: Robert Tivy <rtivy@ti.com>
[nsekhar@ti.com: edit commit message for readability and
style improvements]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17 19:26:40 +05:30
Manjunathappa, Prakash
d7ca4c755a ARM: davinci: mmc: derive version information from device name
Remove specifying mmc controller IP version information via platform
data, instead specify device name so that driver derives it from
platform_device_id table. Also change the clock node name to match
the changed dev_id.
Tested on da850-evm to make sure driver loads without clk_get failures.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-03 09:42:16 +05:30
Olof Johansson
93ce285503 Second round of DT updates for DaVinci.
This pull request adds support for I2C0 and watchdog timer
 for DA850 EVM booting using device tree. It also enables
 machine reboot when using device tree.
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Merge tag 'davinci-for-v3.9/dt-2' of git://gitorious.org/linux-davinci/linux-davinci into next/dt

From Sekhar Nori:
Second round of DT updates for DaVinci.

This pull request adds support for I2C0 and watchdog timer
for DA850 EVM booting using device tree. It also enables
machine reboot when using device tree.

* tag 'davinci-for-v3.9/dt-2' of git://gitorious.org/linux-davinci/linux-davinci:
  ARM: davinci: da850 DT: add support for machine reboot
  ARM: davinci: da850: add wdt DT node
  ARM: davinci: da850: add DT node for I2C0
2013-02-09 17:27:13 -08:00
Kumar, Anil
19c7c0d81a ARM: davinci: da850 DT: add support for machine reboot
Update the da8xx_restart() function to support machine reboot
when booting using DT. Have the function search for the watchdog
platform device instead of always using "da8xx_wdt_device" which
is never registered in DT case.

While at it, also make da8xx_wdt_device static since there is no need
for it to be globally visible.

Tested machine reboot with both DT and non-DT boot on DA850 EVM.

Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-02-09 22:38:26 +05:30
Robert Tivy
d2e0c18a97 ARM: davinci: devices-da8xx.c: change pr_warning() to pr_warn()
Changed all pr_warning() calls to pr_warn(), as advised by checkpatch.pl.

Signed-off-by: Robert Tivy <rtivy@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-01-15 18:38:56 +05:30