diff options
author | Christian Marangi <ansuelsmth@gmail.com> | 2024-06-26 18:00:11 +0200 |
---|---|---|
committer | Lee Jones <lee@kernel.org> | 2024-06-26 17:08:30 +0100 |
commit | 409a9dc53682b9f02793584d17721ab3e1b9c86f (patch) | |
tree | d94b96a6d40a729ce095ffaf5890543f5370eb3f /drivers/leds/leds-lp5523.c | |
parent | 4d310b96f2db602830c40f82a75ede799b243cce (diff) | |
download | lwn-409a9dc53682b9f02793584d17721ab3e1b9c86f.tar.gz lwn-409a9dc53682b9f02793584d17721ab3e1b9c86f.zip |
leds: leds-lp55xx: Generalize load_engine_and_select_page function
Generalize load_engine_and_select_page by reworking the implementation
and making it part of the generic load_engine function.
Add a new option in device_config, pages_per_engine used to define pages
assigned to each engine. With this option set, it's assumed LED chip
supports pages and load_engine will correctly setup the write page.
An equal amount of pages is assigned to each engine and they are
assigned from page 0.
Update any lp55xx based LED driver to define the option and use the new
function.
Suggested-by: Lee Jones <lee@kernel.org>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20240626160027.19703-7-ansuelsmth@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds/leds-lp5523.c')
-rw-r--r-- | drivers/leds/leds-lp5523.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index 086b4d8975a4..8dabd5814110 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -30,6 +30,7 @@ * 0x40 engine 2 muxing info * 0x50 engine 3 muxing info */ +#define LP5523_PAGES_PER_ENGINE 1 #define LP5523_MAX_LEDS 9 /* Registers */ @@ -159,20 +160,6 @@ static int lp5523_post_init_device(struct lp55xx_chip *chip) return lp5523_init_program_engine(chip); } -static void lp5523_load_engine_and_select_page(struct lp55xx_chip *chip) -{ - enum lp55xx_engine_index idx = chip->engine_idx; - static const u8 page_sel[] = { - [LP55XX_ENGINE_1] = LP5523_PAGE_ENG1, - [LP55XX_ENGINE_2] = LP5523_PAGE_ENG2, - [LP55XX_ENGINE_3] = LP5523_PAGE_ENG3, - }; - - lp55xx_load_engine(chip); - - lp55xx_write(chip, LP5523_REG_PROG_PAGE_SEL, page_sel[idx]); -} - static void lp5523_stop_engine(struct lp55xx_chip *chip) { enum lp55xx_engine_index idx = chip->engine_idx; @@ -272,7 +259,7 @@ static int lp5523_init_program_engine(struct lp55xx_chip *chip) /* write LED MUX address space for each engine */ for (i = LP55XX_ENGINE_1; i <= LP55XX_ENGINE_3; i++) { chip->engine_idx = i; - lp5523_load_engine_and_select_page(chip); + lp55xx_load_engine(chip); for (j = 0; j < LP5523_PROGRAM_LENGTH; j++) { ret = lp55xx_write(chip, LP5523_REG_PROG_MEM + j, @@ -362,7 +349,7 @@ static void lp5523_firmware_loaded(struct lp55xx_chip *chip) * 2) write firmware data into program memory */ - lp5523_load_engine_and_select_page(chip); + lp55xx_load_engine(chip); lp5523_update_program_memory(chip, fw->data, fw->size); } @@ -544,7 +531,7 @@ static ssize_t store_engine_load(struct device *dev, mutex_lock(&chip->lock); chip->engine_idx = nr; - lp5523_load_engine_and_select_page(chip); + lp55xx_load_engine(chip); ret = lp5523_update_program_memory(chip, buf, len); mutex_unlock(&chip->lock); @@ -865,6 +852,7 @@ static struct lp55xx_device_config lp5523_cfg = { .addr = LP5523_REG_ENABLE, .val = LP5523_ENABLE, }, + .pages_per_engine = LP5523_PAGES_PER_ENGINE, .max_channel = LP5523_MAX_LEDS, .post_init_device = lp5523_post_init_device, .brightness_fn = lp5523_led_brightness, |