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59 lines
2.0 KiB
Diff
59 lines
2.0 KiB
Diff
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From 63d42755b5ac2fca5d31b5a470470ac68a87b8a8 Mon Sep 17 00:00:00 2001
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From: Andy Green <andy@openmoko.com>
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Date: Fri, 25 Jul 2008 23:06:15 +0100
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Subject: [PATCH] fix-pcf50633-platform-backlight-resume-ramp-setting.patch
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Signed-off-by: Andy Green <andy@openmoko.com>
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---
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arch/arm/mach-s3c2440/mach-gta02.c | 1 +
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drivers/i2c/chips/pcf50633.c | 6 ++++--
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include/linux/pcf50633.h | 1 +
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3 files changed, 6 insertions(+), 2 deletions(-)
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diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
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index 297b792..309e484 100644
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--- a/arch/arm/mach-s3c2440/mach-gta02.c
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+++ b/arch/arm/mach-s3c2440/mach-gta02.c
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@@ -577,6 +577,7 @@ static struct pcf50633_platform_data gta02_pcf_pdata = {
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},
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},
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.defer_resume_backlight = 1,
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+ .resume_backlight_ramp_speed = 5
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};
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#if 0 /* currently unused */
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diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
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index bbc8ae6..6745993 100644
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--- a/drivers/i2c/chips/pcf50633.c
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+++ b/drivers/i2c/chips/pcf50633.c
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@@ -2476,10 +2476,12 @@ void pcf50633_backlight_resume(struct pcf50633_data *pcf)
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{
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dev_info(&pcf->client.dev, "pcf50633_backlight_resume\n");
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- /* we force the backlight on in fact */
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- reg_write(pcf, PCF50633_REG_LEDDIM, 1);
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+ /* platform defines resume ramp speed */
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+ reg_write(pcf, PCF50633_REG_LEDDIM,
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+ pcf->pdata->resume_backlight_ramp_speed);
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reg_write(pcf, PCF50633_REG_LEDOUT, pcf->standby_regs.misc[
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PCF50633_REG_LEDOUT - PCF50633_REG_AUTOOUT]);
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+ /* we force the backlight on in fact */
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reg_write(pcf, PCF50633_REG_LEDENA, pcf->standby_regs.misc[
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PCF50633_REG_LEDENA - PCF50633_REG_AUTOOUT] | 1);
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}
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diff --git a/include/linux/pcf50633.h b/include/linux/pcf50633.h
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index fa1c7e8..b94b72a 100644
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--- a/include/linux/pcf50633.h
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+++ b/include/linux/pcf50633.h
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@@ -173,6 +173,7 @@ struct pcf50633_platform_data {
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/* post-resume backlight bringup */
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int defer_resume_backlight;
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+ u8 resume_backlight_ramp_speed;
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};
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#endif /* _PCF50633_H */
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--
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1.5.6.3
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