Commit graph

11 commits

Author SHA1 Message Date
Ricardo B. Marliere a3891621d4 ARM: s3c64xx: make bus_type const
Since commit d492cc2573 ("driver core: device.h: make struct bus_type
a const *"), the driver core can properly handle constant struct
bus_type, move the s3c6410_subsys variable to be a constant structure as
well, placing it into read-only memory which can not be modified at
runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240204-bus_cleanup-arm-v1-1-41d651dd8411@marliere.net
Link: https://lore.kernel.org/r/20240211-bus_cleanup-arm-v2-1-3de9e8af7cbd@marliere.net
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-02-12 08:28:44 +01:00
Linus Walleij 7a49bfde01 ARM: s3c64xx: Use the right include
The file s3c64xx.c is including <linux/gpio.h> despite using no
symbols from the file, however it needs it to implicitly bring in
of_have_populated_dt() so include <linux/of.h> explicitly instead.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-03-06 12:33:01 +02:00
Linus Torvalds b32c6e029c ARM: SoC updates for 6.3
The majority of the changes are for the OMAP2 platform, mostly
 removing some dead code that got left behind from previous cleanups.
 
 Aside from that, there are very minor updates and correctness fixes for
 Zynq, i.MX, Samsung, Broadcom, AT91, ep93xx, and OMAP1.
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Merge tag 'arm-soc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC updates from Arnd Bergmann:
 "The majority of the changes are for the OMAP2 platform, mostly
  removing some dead code that got left behind from previous cleanups.

  Aside from that, there are very minor updates and correctness fixes
  for Zynq, i.MX, Samsung, Broadcom, AT91, ep93xx, and OMAP1"

* tag 'arm-soc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (26 commits)
  dt-bindings: soc: samsung: exynos-pmu: allow phys as child
  ARM: imx: mach-imx6ul: add imx6ulz support
  ARM: imx: Call ida_simple_remove() for ida_simple_get
  arm64: drop redundant "ARMv8" from Kconfig option title
  ARM: ep93xx: Convert to use descriptors for GPIO LEDs
  ARM: s3c: fix s3c64xx_set_timer_source prototype
  ARM: OMAP2+: Fix spelling typos in comment
  ARM: OMAP2+: Remove unneeded #include <linux/pinctrl/machine.h>
  ARM: OMAP2+: Remove unneeded #include <linux/pinctrl/pinmux.h>
  ARM: OMAP1: call platform_device_put() in error case in omap1_dm_timer_init()
  ARM: BCM63xx: remove useless goto statement
  ARM: omap2: make functions static
  ARM: omap2: remove unused omap2_pm_init
  ARM: omap2: remove unused declarations
  ARM: omap2: remove unused functions
  ARM: omap2: smartreflex: remove on_init control
  ARM: omap2: remove APLL control
  ARM: omap2: simplify clock2xxx header
  ARM: omap2: remove unused omap_hwmod_reset.c
  ARM: omap2: remove unused headers
  ...
2023-02-20 15:36:37 -08:00
Arnd Bergmann 5bf52f5e4d ARM: s3c: fix s3c64xx_set_timer_source prototype
The prototype does not match the definition, as gcc-13 points
out:

arch/arm/mach-s3c/s3c64xx.c:169:13: error: conflicting types for 's3c64xx_set_timer_source' due to enum/integer mismatch; have 'void(unsigned int,  unsigned int)' [-Werror=enum-int-mismatch]
  169 | void __init s3c64xx_set_timer_source(unsigned int event, unsigned int source)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/arm/mach-s3c/s3c64xx.c:50:
arch/arm/mach-s3c/s3c64xx.h:62:20: note: previous declaration of 's3c64xx_set_timer_source' with type 'void(enum s3c64xx_timer_mode,  enum s3c64xx_timer_mode)'
   62 | extern void __init s3c64xx_set_timer_source(enum s3c64xx_timer_mode event,
      |                    ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 4280506ac9 ("ARM: SAMSUNG: Move all platforms to new clocksource driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230118090224.2162863-1-arnd@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2023-01-20 08:23:08 +01:00
Arnd Bergmann 6bac4f78ea ARM: s3c: remove s3c6400 support
No board file and no dts file references the s3c6400 now, it's only
s3c6410, so remove the final bits as well.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-16 09:26:05 +01:00
Krzysztof Kozlowski 6a5e69c7dd ARM: s3c: mark as deprecated and schedule removal
The Samsung S3C24xx and S3C64xx platforms are very old designs. S3C2416
was introduced in 2008 and S3C6410 in 2009/2010.  They are not widely
available anymore - out-of-stock on FriendlyArm (one of manufacturers of
boards) and only few specialist stores still offer them for quite a high
price.

The community around these platforms was not very active, so I suspect
no one really uses them anymore. Maintenance takes precious time so
there is little sense in keeping them alive if there are no real users.

Let's mark all S3C24xx and S3C64xx platforms as deprecated and mention
possible removal in after 2022 for the first and 2024 for the lattere.
The deprecation message will be as text in Kconfig, build message (not a
warning though) and runtime print error.

If there are any users, they might respond and postpone the removal.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220407072319.75614-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-04-21 15:11:40 +02:00
Arnd Bergmann c78a41fc04 ARM: s3c24xx: convert to sparse-irq
As a final bit of preparation for converting to ARCH_MULTIPLATFORM,
change the interrupt handling for s3c24xx to use sparse IRQs.

Since the number of possible interrupts is already fixed and relatively
small per chip, just make it use all legacy interrupts preallocated
using the .nr_irqs field in the machine descriptor, rather than actually
allocating domains on the fly.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-04-07 09:31:31 +02:00
Olof Johansson 76940c8d5a Samsung mach/soc changes for v5.10
1. Clear unneeded L2C-310 flag which presenc was triggering warning
    message.
 2. Fix build of SAMSUNG_PM_DEBUG without MMU.
 3. Minor cleanups and update of linux-samsung-soc mailing list in
    Maintainers.
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Merge tag 'samsung-soc-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc

Samsung mach/soc changes for v5.10

1. Clear unneeded L2C-310 flag which presenc was triggering warning
   message.
2. Fix build of SAMSUNG_PM_DEBUG without MMU.
3. Minor cleanups and update of linux-samsung-soc mailing list in
   Maintainers.

* tag 'samsung-soc-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: s3c64xx: bring back notes from removed debug-macro.S
  ARM: s3c24xx: fix Wunused-variable warning on !MMU
  ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
  MAINTAINERS: mark linux-samsung-soc list non-moderated
  ARM: exynos: clear L310_AUX_CTRL_NS_LOCKDOWN in default l2c_aux_val

Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 12:55:43 -07:00
Krzysztof Kozlowski a1342f6a9f ARM: s3c: Avoid naming clash of S3C24xx and S3C64xx timer setup
PWM timer initialization has two independent implementations - one for
S3C24xx and one for S3C64xx.  The naming however was always the same
and before also the declaration was shared.  This is confusing, error
prone and might cause issues when trying to build multiplatform kernel.

Suggested-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200820204203.22328-1-krzk@kernel.org
2020-08-28 16:38:55 +02:00
Arnd Bergmann c6ff132d42 ARM: s3c: make headers local if possible
A lot of header files are only used internally now, so they can be moved
to mach-s3c, out of the visibility of drivers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-40-krzk@kernel.org
[krzk: Rebase and fixup leds-s3c24xx driver]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-22 13:02:02 +02:00
Arnd Bergmann 71b9114d2c ARM: s3c: move into a common directory
s3c24xx and s3c64xx have a lot in common, but are split across three
separate directories, which makes the interaction of the header files
more complicated than necessary.

Move all three directories into a new mach-s3c, with a minimal
set of changes to each file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[krzk: Rebase, add s3c24xx and s3c64xx suffix to several files, add SPDX
       headers to new files, remove plat-samsung from MAINTAINERS]
Co-developed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
https://lore.kernel.org/r/20200806182059.2431-39-krzk@kernel.org
2020-08-20 21:00:15 +02:00
Renamed from arch/arm/mach-s3c64xx/common.c (Browse further)