linux-toradex.git/arch/arm/mach-ep93xx, branch master

ARM: ep93xx: delete all boardfiles

2024-09-12T14:33:12+00:00

Delete the ep93xx board files.

Signed-off-by: Nikita Shubin 
Tested-by: Alexander Sverdlin 
Acked-by: Vinod Koul 
Signed-off-by: Arnd Bergmann

ata: pata_ep93xx: remove legacy pinctrl use

2024-09-12T14:33:12+00:00

Drop legacy acquire/release since we are using pinctrl for this now.

Signed-off-by: Nikita Shubin 
Tested-by: Alexander Sverdlin 
Reviewed-by: Sergey Shtylyov 
Reviewed-by: Linus Walleij 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Mark Brown 
Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Andy Shevchenko 
Acked-by: Damien Le Moal 
Acked-by: Vinod Koul 
Signed-off-by: Arnd Bergmann

pwm: ep93xx: drop legacy pinctrl

2024-09-12T14:33:11+00:00

Drop legacy gpio request/free since we are using
pinctrl for this now.

Signed-off-by: Nikita Shubin 
Acked-by: Uwe Kleine-König 
Acked-by: Thierry Reding 
Acked-by: Linus Walleij 
Acked-by: Vinod Koul 
Signed-off-by: Arnd Bergmann

ARM: ep93xx: DT for the Cirrus ep93xx SoC platforms

2024-09-12T14:33:11+00:00

Add compulsory device tree support to the Cirrus ep93xx ARMv4 platform.

- select PINCTRL_EP93xx
- select COMMON_CLK_EP93XX, as clock driver moved out of platform code
- select ARCH_HAS_RESET_CONTROLLER

Select ARM_ATAG_DTB_COMPAT to update device tree with information
about memory passed from bootloader.

We have to leave all MACH options as they are used for board checking
before decomp, to turn off watchdog and ethernet DMA.

Tested-by: Alexander Sverdlin 
Signed-off-by: Nikita Shubin 
Tested-by: Michael Peters 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Guenter Roeck 
Reviewed-by: Mark Brown 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Linus Walleij 
Reviewed-by: Kris Bahnsen 
Reviewed-by: Andrew Lunn 
Reviewed-by: Sergey Shtylyov 
Acked-by: Miquel Raynal 
Acked-by: Alexander Sverdlin 
Acked-by: Uwe Kleine-König 
Acked-by: Damien Le Moal 
Acked-by: Sebastian Reichel 
Acked-by: Vinod Koul 
Signed-off-by: Arnd Bergmann

input: keypad: ep93xx: add DT support for Cirrus EP93xx

2024-09-12T14:33:11+00:00

- drop flags, they were not used anyway
- add OF ID match table
- process "autorepeat", "debounce-delay-ms", prescale from device tree
- drop platform data usage and it's header
- keymap goes from device tree now on

Signed-off-by: Nikita Shubin 
Acked-by: Dmitry Torokhov 
Acked-by: Vinod Koul 
Signed-off-by: Arnd Bergmann

gpio: ep93xx: split device in multiple

2024-09-12T14:33:10+00:00

Prepare ep93xx SOC gpio to convert into device tree driver:
- dropped banks and legacy defines
- split AB IRQ and make it shared

We are relying on IRQ number information A, B ports have single shared
IRQ, while F port have dedicated IRQ for each line.

Also we had to split single ep93xx platform_device into multiple, one
for each port, without this we can't do a full working transition from
legacy platform code into device tree capable. All GPIO_LOOKUP were
change to match new chip namings.

Signed-off-by: Nikita Shubin 
Tested-by: Alexander Sverdlin 
Reviewed-by: Linus Walleij 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Guenter Roeck 
Acked-by: Bartosz Golaszewski 
Acked-by: Miquel Raynal 
Acked-by: Vinod Koul 
Signed-off-by: Arnd Bergmann

ep93xx: clock: Fix off by one in ep93xx_div_recalc_rate()

2024-09-11T12:20:27+00:00

The psc->div[] array has psc->num_div elements.  These values come from
when we call clk_hw_register_div().  It's adc_divisors and
ARRAY_SIZE(adc_divisors)) and so on.  So this condition needs to be >=
instead of > to prevent an out of bounds read.

Fixes: 9645ccc7bd7a ("ep93xx: clock: convert in-place to COMMON_CLK")
Signed-off-by: Dan Carpenter 
Acked-by: Alexander Sverdlin 
Reviewed-by: Nikita Shubin 
Signed-off-by: Alexander Sverdlin 
Link: https://lore.kernel.org/r/1caf01ad4c0a8069535813c26c7f0b8ea011155e.camel@linaro.org
Signed-off-by: Arnd Bergmann

ARM: ep93xx: Add terminator to gpiod_lookup_table

2024-02-20T16:19:49+00:00

Without the terminator, if a con_id is passed to gpio_find() that
does not exist in the lookup table the function will not stop looping
correctly, and eventually cause an oops.

Cc: stable@vger.kernel.org
Fixes: b2e63555592f ("i2c: gpio: Convert to use descriptors")
Reported-by: Andy Shevchenko 
Signed-off-by: Nikita Shubin 
Reviewed-by: Linus Walleij 
Acked-by: Alexander Sverdlin 
Signed-off-by: Alexander Sverdlin 
Link: https://lore.kernel.org/r/20240205102337.439002-1-alexander.sverdlin@gmail.com
Signed-off-by: Arnd Bergmann

ASoC: cs4271: Convert to GPIO descriptors

2023-12-01T16:59:21+00:00

This converts the Cirrus CS4271 ASoC codec driver to use
GPIO descriptors.

It turns out that there are two in-kernel users of the platform
data passing mechanism so these are switched over as well.

One locally defined GPIO "gpio_disabled" is declared in the
state struct but completely unused in the driver, so we delete
it.

Reviewed-by: Alexander Sverdlin 
Acked-by: Charles Keepax 
Signed-off-by: Linus Walleij 
Link: https://lore.kernel.org/r/20231201-descriptors-sound-cirrus-v2-6-ee9f9d4655eb@linaro.org
Signed-off-by: Mark Brown

ARM: ep93xx: fix missing-prototype warnings

2023-05-26T11:31:37+00:00

ep93xx_clocksource_read() is only called from the file it is declared in,
while ep93xx_timer_init() is declared in a header that is not included here.

arch/arm/mach-ep93xx/timer-ep93xx.c:120:13: error: no previous prototype for 'ep93xx_timer_init'
arch/arm/mach-ep93xx/timer-ep93xx.c:63:5: error: no previous prototype for 'ep93xx_clocksource_read'

Fixes: 000bc17817bf ("ARM: ep93xx: switch to GENERIC_CLOCKEVENTS")
Acked-by: Alexander Sverdlin 
Link: https://lore.kernel.org/r/20230516153109.514251-3-arnd@kernel.org
Signed-off-by: Arnd Bergmann