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5 Commits

Author SHA1 Message Date
Mark Brown
65e9b51344 leds: aw200xx: Convert to use maple tree register cache 
The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230929-leds-maple-v1-2-ba5f9dcb1e75@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2023-11-01 11:29:01 +00:00
Kees Cook
ff861ca9f2 leds: aw200xx: Annotate struct aw200xx with __counted_by 
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).

As found with Coccinelle[1], add __counted_by for struct aw200xx.

[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230915200938.never.767-kees@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2023-11-01 11:28:25 +00:00
Uwe Kleine-König
07a476e04f leds: aw200xx: Switch back to use struct i2c_driver::probe 
struct i2c_driver::probe_new is about to go away. Switch the driver to
use the probe callback with the same prototype.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230626090254.556206-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2023-07-28 09:26:20 +01:00
Dan Carpenter
ad5152b85e leds: aw200xx: Fix error code in probe() 
The "ret" variable is zero/success here.  Don't return that, return
-EINVAL instead.

Fixes: 36a87f371b7a ("leds: Add AW20xx driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/4d791b69-01c7-4532-818c-63712d3f63e1@moroto.mountain
Signed-off-by: Lee Jones <lee@kernel.org>
 2023-07-28 09:26:18 +01:00
Martin Kurbanov
36a87f371b leds: Add AW20xx driver 
This commit adds support for AWINIC AW20036/AW20054/AW20072 LED driver.
This driver supports following AW200XX features:
  - Individual 64-level DIM currents

Signed-off-by: Martin Kurbanov <mmkurbanov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230519130403.212479-3-mmkurbanov@sberdevices.ru
Signed-off-by: Lee Jones <lee@kernel.org>
 2023-06-01 19:46:35 +01:00