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SubjectRe: [PATCH v2 1/2] leds-lm3530: set the value of max_brightness to 127
On 01/25/2012 02:51 AM, Kim, Milo wrote:
> Only 7 bits are used for the brightness. (register address : A0h)
> So the max_brightness property of lm3530 should be set to 127.
>
> On initializing registers, maximum initial brightness is limited to 'max_brightness'.
>
> Division-by-two is removed on updating the value of brightness.
> This arithmetic is not necessary because the range of brightness is 0 ~ 127.
>
> Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
> ---
> drivers/leds/leds-lm3530.c | 22 +++++++++++-----------
> 1 files changed, 11 insertions(+), 11 deletions(-)
>

Looks like something went wrong, this is the same patch as 2/2

> diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c
> index a7f24f7..7005a5f 100644
> --- a/drivers/leds/leds-lm3530.c
> +++ b/drivers/leds/leds-lm3530.c
> @@ -153,11 +153,11 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
> u8 als_imp_sel = 0;
> u8 brightness;
> u8 reg_val[LM3530_REG_MAX];
> - struct lm3530_platform_data *pdata = drvdata->pdata;
> + struct lm3530_platform_data *pltfm = drvdata->pdata;
> struct i2c_client *client = drvdata->client;
>
> - gen_config = (pdata->brt_ramp_law << LM3530_RAMP_LAW_SHIFT) |
> - ((pdata->max_current & 7) << LM3530_MAX_CURR_SHIFT);
> + gen_config = (pltfm->brt_ramp_law << LM3530_RAMP_LAW_SHIFT) |
> + ((pltfm->max_current & 7) << LM3530_MAX_CURR_SHIFT);
>
> if (drvdata->mode == LM3530_BL_MODE_MANUAL ||
> drvdata->mode == LM3530_BL_MODE_ALS)
> @@ -165,27 +165,27 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
>
> if (drvdata->mode == LM3530_BL_MODE_ALS) {
> als_config =
> - (pdata->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) |
> + (pltfm->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) |
> (LM3530_ENABLE_ALS) |
> - (pdata->als_input_mode << LM3530_ALS_SEL_SHIFT);
> + (pltfm->als_input_mode << LM3530_ALS_SEL_SHIFT);
>
> als_imp_sel =
> - (pdata->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) |
> - (pdata->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT);
> + (pltfm->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) |
> + (pltfm->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT);
> }
>
> if (drvdata->mode == LM3530_BL_MODE_PWM)
> gen_config |= (LM3530_ENABLE_PWM) |
> - (pdata->pwm_pol_hi << LM3530_PWM_POL_SHIFT) |
> + (pltfm->pwm_pol_hi << LM3530_PWM_POL_SHIFT) |
> (LM3530_ENABLE_PWM_SIMPLE);
>
> - brt_ramp = (pdata->brt_ramp_fall << LM3530_BRT_RAMP_FALL_SHIFT) |
> - (pdata->brt_ramp_rise << LM3530_BRT_RAMP_RISE_SHIFT);
> + brt_ramp = (pltfm->brt_ramp_fall << LM3530_BRT_RAMP_FALL_SHIFT) |
> + (pltfm->brt_ramp_rise << LM3530_BRT_RAMP_RISE_SHIFT);
>
> if (drvdata->brightness)
> brightness = drvdata->brightness;
> else
> - brightness = drvdata->brightness = pdata->brt_val;
> + brightness = drvdata->brightness = pltfm->brt_val;
>
> if (brightness > drvdata->led_dev.max_brightness)
> brightness = drvdata->led_dev.max_brightness;



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