linux.git/drivers/pinctrl/nomadik, branch v6.9

pinctrl: nomadik: fix dereference of error pointer

2024-03-06T19:47:14+00:00

If nmk_gpio_populate_chip() returns an error, avoid deferencing its
return value.

Reported-by: Dan Carpenter 
Closes: https://lore.kernel.org/linux-gpio/5ee722f8-7582-420d-8477-45be6acde90f@moroto.mountain/
Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240306-mbly-gpio-err-fix-v1-1-a3605ba2336f@bootlin.com
Signed-off-by: Linus Walleij

gpio: nomadik: Finish conversion to use firmware node APIs

2024-03-03T08:43:10+00:00

Previously driver got a few updates in order to replace OF APIs by
respective firmware node, however it was not finished to the logical
end, e.g., some APIs that has been used are still require OF node
to be passed. Finish that job by converting leftovers to use firmware
node APIs.

Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20240302173401.217830-1-andy.shevchenko@gmail.com
Signed-off-by: Linus Walleij

gpio: nomadik: fix Kconfig dependencies inbetween pinctrl & GPIO

2024-03-01T13:30:28+00:00

PINCTRL_NOMADIK cannot select GPIO_NOMADIK without first selecting
GPIOLIB on which GPIO_NOMADIK depends. GPIO_NOMADIK depends on OF_GPIO,
it is a direct dependency.

Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202403010917.pnDhdS1Y-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202403011102.v8w2zPOU-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202403011329.1VnABMRz-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202403011546.Hpt8sBTa-lkp@intel.com/
Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240301-mbly-gpio-kconfig-fix-v1-1-2785cebd475d@bootlin.com
Signed-off-by: Linus Walleij

gpio: nomadik: support mobileye,eyeq5-gpio

2024-02-29T09:36:55+00:00

We create a custom compatible for the STA2X11 IP block as integrated
into the Mobileye EyeQ5 platform. Its wake and alternate functions have
been disabled, we want to avoid touching those registers.

We both do: (1) early return in functions that do not support the
platform, but with warnings, and (2) avoid calling those functions in
the first place.

We ensure that pinctrl-nomadik is not used with this STA2X11 variant.

Reviewed-by: Linus Walleij 
Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-24-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij

gpio: nomadik: request dynamic ID allocation

2024-02-29T09:32:39+00:00

Move away from statically allocated GPIO IDs. Switch to dynamic ID
allocation. Static IDs are deprecated because they cause issues when
multiple GPIO controllers are to be found on the same platform.

Add a bit of complexity to do pin number -> GPIO chip + offset.
Previously, bank number and offsets were retrieved using division and
remainder (bank size being constant 32). Now, to get the pin number
matching a bank base, we must know the sum of ngpios of previous banks.
This is done in find_nmk_gpio_from_pin() which also exposes the offset
inside the bank.

Also remove the assumption that bank sizes are constant. Instead of
using NMK_GPIO_PER_CHIP as bank size, use nmk_gpio_chips[i]->ngpio.

Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-19-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij

pinctrl: nomadik: follow conditional kernel coding conventions

2024-02-29T09:28:21+00:00

Fix strict checkpatch warnings relative to if-else blocks and bool
expressions. Message types addressed:

   CHECK: Comparison to NULL could be written "!nmk_cfg_params[index].choice"
   CHECK: Unbalanced braces around else statement
   CHECK: Using comparison to false is error prone
   CHECK: Using comparison to true is error prone
   CHECK: braces {} should be used on all arms of this statement

Before: 0 errors, 1 warnings, 16 checks.
After:  0 errors, 1 warnings,  7 checks.

Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-13-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij

pinctrl: nomadik: follow whitespace kernel coding conventions

2024-02-29T09:27:39+00:00

Fix strict checkpatch warnings relative to whitespace. Message types
addressed:

   ERROR: space required before the open parenthesis '('
   WARNING: quoted string split across lines
   CHECK: Alignment should match open parenthesis
   CHECK: Please don't use multiple blank lines
   CHECK: line length of 103 exceeds 100 columns
   CHECK: spaces preferred around that '+' (ctx:VxV)

Before: 1 errors, 2 warnings, 38 checks.
After:  0 errors, 1 warnings, 16 checks.

Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-12-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij

pinctrl: nomadik: follow type-system kernel coding conventions

2024-02-29T09:27:02+00:00

Fix strict checkpatch warnings relative to types. Warning types
addressed:

   WARNING: do not add new typedefs
   WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
   WARNING: static const char * array should probably be static const
            char * const

Total messages before: 1 errors, 40 warnings, 39 checks.
Total messages after:  1 errors,  2 warnings, 38 checks.

Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-11-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij

pinctrl: nomadik: minimise indentation in probe

2024-02-29T09:26:09+00:00

nmk_pinctrl_probe() iterates over each GPIO block. Use an early
conditional continue to skip to the next iteration rather than indent
all the loop code block.

Do not change code logic. The block is changed from:

	for (i = 0; i < NMK_MAX_BANKS; i++) {
		x = of_parse_phandle(...);
		if (x) {
			... do work ...
		}
	}

To:

	for (i = 0; i < NMK_MAX_BANKS; i++) {
		x = of_parse_phandle(...);
		if (!x)
			continue;

		... do work ...
	}

Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-10-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij

pinctrl: nomadik: fix build warning (-Wpointer-to-int-cast)

2024-02-29T09:25:31+00:00

Fix compiler warning found in the pinctrl-nomadik platform driver. GCC
message is as such:

drivers/pinctrl/nomadik/pinctrl-nomadik.c:1169:12: warning: cast from
pointer to integer of different size [-Wpointer-to-int-cast]

Signed-off-by: Théo Lebrun 
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-9-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij