From e806e28f31c46b73ca965954c717af405376ae8e Mon Sep 17 00:00:00 2001 From: Matt Wagner Date: Fri, 22 Jul 2011 00:13:08 -0700 Subject: video: backlight: tegra: add callback to tegra_pwm_backlight tegra-pwm-backlight now has a notify function that enables the brightness to be passed back to the boardfile where it is modified. Bug 854820 Original-Change-Id: I1425d801f77987485b58c3cbedae464b5db88444 Reviewed-on: http://git-master/r/42639 Reviewed-by: Varun Colbert Tested-by: Varun Colbert Rebase-Id: R156ca05e91b04723146628b1b1abcef31a43795a --- drivers/video/backlight/tegra_pwm_bl.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/video/backlight') diff --git a/drivers/video/backlight/tegra_pwm_bl.c b/drivers/video/backlight/tegra_pwm_bl.c index 7e7bfe76ee25..f2202d81ca30 100644 --- a/drivers/video/backlight/tegra_pwm_bl.c +++ b/drivers/video/backlight/tegra_pwm_bl.c @@ -25,6 +25,7 @@ struct tegra_pwm_bl_data { struct device *dev; int which_dc; + int (*notify)(struct device *, int brightness); struct tegra_dc_pwm_params params; }; @@ -41,6 +42,9 @@ static int tegra_pwm_backlight_update_status(struct backlight_device *bl) if (bl->props.fb_blank != FB_BLANK_UNBLANK) brightness = 0; + if (tbl->notify) + brightness = tbl->notify(tbl->dev, brightness); + if (brightness > max) dev_err(&bl->dev, "Invalid brightness value: %d max: %d\n", brightness, max); @@ -95,6 +99,7 @@ static int tegra_pwm_backlight_probe(struct platform_device *pdev) tbl->dev = &pdev->dev; tbl->which_dc = data->which_dc; + tbl->notify = data->notify; tbl->params.which_pwm = data->which_pwm; tbl->params.gpio_conf_to_sfio = data->gpio_conf_to_sfio; tbl->params.switch_to_sfio = data->switch_to_sfio; -- cgit v1.2.3