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leds: lp5523: make separate API for loading engine 

lp5523_load_engine()
  It is called whenever the operation mode is changed to 'load'.
  It is used for simple operation mode change.
  It will be used when engine mode and LED selection is updated in later patch.

lp5523_load_engine_and_select_page()
  Change the operation mode to 'load' and select program page number.
  This is used for programming a LED pattern at a time.
  So load_engine() is replaced with new API, load_engine_and_select_page()
  in lp5523_firmware_loaded().

Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
This commit is contained in:
Milo Kim 2013-08-08 13:56:01 +09:00 committed by Bryan Wu
parent 1eca0b3ab8
commit b9e1730b29
1 changed files with 10 additions and 4 deletions
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14
drivers/leds/leds-lp5523.c
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@ -152,15 +152,21 @@ static void lp5523_load_engine(struct lp55xx_chip *chip)
[LP55XX_ENGINE_3] = LP5523_LOAD_ENG3, [LP55XX_ENGINE_3] = LP5523_LOAD_ENG3,
}; };
lp55xx_update_bits(chip, LP5523_REG_OP_MODE, mask[idx], val[idx]);
lp5523_wait_opmode_done();
}
static void lp5523_load_engine_and_select_page(struct lp55xx_chip *chip)
{
enum lp55xx_engine_index idx = chip->engine_idx;
u8 page_sel[] = { u8 page_sel[] = {
[LP55XX_ENGINE_1] = LP5523_PAGE_ENG1, [LP55XX_ENGINE_1] = LP5523_PAGE_ENG1,
[LP55XX_ENGINE_2] = LP5523_PAGE_ENG2, [LP55XX_ENGINE_2] = LP5523_PAGE_ENG2,
[LP55XX_ENGINE_3] = LP5523_PAGE_ENG3, [LP55XX_ENGINE_3] = LP5523_PAGE_ENG3,
}; };
lp55xx_update_bits(chip, LP5523_REG_OP_MODE, mask[idx], val[idx]); lp5523_load_engine(chip);
lp5523_wait_opmode_done();
lp55xx_write(chip, LP5523_REG_PROG_PAGE_SEL, page_sel[idx]); lp55xx_write(chip, LP5523_REG_PROG_PAGE_SEL, page_sel[idx]);
} }
@ -290,7 +296,7 @@ static void lp5523_firmware_loaded(struct lp55xx_chip *chip)
* 2) write firmware data into program memory * 2) write firmware data into program memory
*/ */
lp5523_load_engine(chip); lp5523_load_engine_and_select_page(chip);
lp5523_update_program_memory(chip, fw->data, fw->size); lp5523_update_program_memory(chip, fw->data, fw->size);
} }