From: Pavel Machek Date: Wed, 15 Mar 2006 16:03:03 +0000 (+0000) Subject: [ARM] 3357/1: enable frontlight on collie X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4ebf2d00260bac5213c5dfb8d257e15e40503725;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [ARM] 3357/1: enable frontlight on collie Patch from Pavel Machek Enable frontlight during collie bootup, so that display is actually readable in anything other than bright sunlight. Signed-off-by: Pavel Machek Signed-off-by: Richard Purdie Signed-off-by: Russell King --- diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c index 159ad7ed7a4..d31b1cb7eea 100644 --- a/arch/arm/common/locomo.c +++ b/arch/arm/common/locomo.c @@ -629,6 +629,22 @@ static int locomo_resume(struct platform_device *dev) } #endif + +#define LCM_ALC_EN 0x8000 + +void frontlight_set(struct locomo *lchip, int duty, int vr, int bpwf) +{ + unsigned long flags; + + spin_lock_irqsave(&lchip->lock, flags); + locomo_writel(bpwf, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); + udelay(100); + locomo_writel(duty, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD); + locomo_writel(bpwf | LCM_ALC_EN, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); + spin_unlock_irqrestore(&lchip->lock, flags); +} + + /** * locomo_probe - probe for a single LoCoMo chip. * @phys_addr: physical address of device. @@ -688,6 +704,11 @@ __locomo_probe(struct device *me, struct resource *mem, int irq) /* FrontLight */ locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD); + + /* Same constants can be used for collie and poodle + (depending on CONFIG options in original sharp code)? */ + frontlight_set(lchip, 163, 0, 148); + /* Longtime timer */ locomo_writel(0, lchip->base + LOCOMO_LTINT); /* SPI */