kernel/git/stable/linux.git/drivers/leds/blink, branch linux-5.13.y

leds: lgm-sso: Propagate error codes from callee to caller

2021-09-15T08:00:44+00:00

[ Upstream commit 9cbc861095375793a69858f91f3ac4e817f320f0 ] The one of the latest change to the driver reveals the problem that the error codes from callee aren't propagated to the caller of __sso_led_dt_parse(). Fix this accordingly. Fixes: 9999908ca1ab ("leds: lgm-sso: Put fwnode in any case during ->probe()") Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC") Reported-by: kernel test robot Signed-off-by: Andy Shevchenko Signed-off-by: Pavel Machek Signed-off-by: Sasha Levin

leds: lgm-sso: Don't spam logs when probe is deferred

2021-09-15T08:00:42+00:00

[ Upstream commit 1ed4d05e0a0b23ba15e0affcff4008dd537ae3ee ] When requesting GPIO line the probe can be deferred. In such case don't spam logs with an error message. This can be achieved by switching to dev_err_probe(). Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC") Cc: Amireddy Mallikarjuna reddy Signed-off-by: Andy Shevchenko Signed-off-by: Pavel Machek Signed-off-by: Sasha Levin

leds: lgm-sso: Put fwnode in any case during ->probe()

2021-09-15T08:00:42+00:00

[ Upstream commit 9999908ca1abee7aa518a4f6a3739517c137acbf ] fwnode_get_next_child_node() bumps a reference counting of a returned variable. We have to balance it whenever we return to the caller. All the same in fwnode_for_each_child_node() case. Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC") Cc: Amireddy Mallikarjuna reddy Signed-off-by: Andy Shevchenko Signed-off-by: Pavel Machek Signed-off-by: Sasha Levin

leds: lgm-sso: Fix clock handling

2021-07-14T15:07:32+00:00

[ Upstream commit fba8a6f2263bc54683cf3fd75df4dbd5d041c195 ] The clock handling has a few issues: - when getting second clock fails, the first one left prepared and enabled - on ->remove() clocks are unprepared and disabled twice Fix all these by converting to use bulk clock operations since both clocks are mandatory. Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC") Cc: Amireddy Mallikarjuna reddy Signed-off-by: Andy Shevchenko Signed-off-by: Pavel Machek Signed-off-by: Sasha Levin

leds: LEDS_BLINK_LGM should depend on X86

2021-04-25T20:56:42+00:00

The Intel Lightning Mountain (LGM) Serial Shift Output controller (SSO) is only present on Intel Lightning Mountain SoCs. Hence add a dependency on X86, to prevent asking the user about this driver when configuring a kernel without Intel Lightning Mountain platform support. While at it, merge the other dependencies into a single statement. Signed-off-by: Geert Uytterhoeven Signed-off-by: Pavel Machek

leds: lgm: Fix spelling mistake "prepate" -> "prepare"

2021-04-25T20:37:57+00:00

There is a spelling mistake in a dev_err error message. Fix it. Signed-off-by: Colin Ian King Signed-off-by: Pavel Machek

leds: lgm: Improve Kconfig help

2021-03-25T10:37:41+00:00

Remove unnecessary Kconfig symbol LEDS_BLINK Improve Kconfig help text to make it more useful. Signed-off-by: Rahul Tanwar Signed-off-by: Pavel Machek

leds: lgm: fix gpiolib dependency

2021-03-09T18:06:46+00:00

Without gpiolib, the driver fails to build: drivers/leds/blink/leds-lgm-sso.c:123:19: error: field has incomplete type 'struct gpio_chip' struct gpio_chip chip; ^ include/linux/gpio.h:107:8: note: forward declaration of 'struct gpio_chip' struct gpio_chip; ^ drivers/leds/blink/leds-lgm-sso.c:263:3: error: implicit declaration of function 'gpiod_set_value' [-Werror,-Wimplicit-function-declaration] gpiod_set_value(led->gpiod, val); ^ drivers/leds/blink/leds-lgm-sso.c:263:3: note: did you mean 'gpio_set_value'? include/linux/gpio.h:168:20: note: 'gpio_set_value' declared here static inline void gpio_set_value(unsigned gpio, int value) ^ drivers/leds/blink/leds-lgm-sso.c:345:3: error: implicit declaration of function 'gpiod_set_value' [-Werror,-Wimplicit-function-declaration] gpiod_set_value(led->gpiod, 1); ^ Add the dependency in Kconfig. Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC") Signed-off-by: Arnd Bergmann Signed-off-by: Pavel Machek

leds: lgm: Add LED controller driver for LGM SoC

2021-02-19T10:40:18+00:00

Parallel to serial conversion, which is also called SSO controller, can drive external shift register for LED outputs, reset or general purpose outputs. This driver enables LED support for Serial Shift Output Controller (SSO). Signed-off-by: Amireddy Mallikarjuna reddy Signed-off-by: Pavel Machek