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LGM SSO is an OF dependent driver, so of_match_ptr() can be safely
removed.
Remove the unneeded of_match_ptr().
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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 <mallikarjunax.reddy@linux.intel.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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 <geert+renesas@glider.be>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
There is a spelling mistake in a dev_err error message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Remove unnecessary Kconfig symbol LEDS_BLINK
Improve Kconfig help text to make it more useful.
Signed-off-by: Rahul Tanwar <rtanwar@maxlinear.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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 <arnd@arndb.de>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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 <mallikarjunax.reddy@linux.intel.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
