From 4b4147c38f89dea536afc50a0a2d2ed005b49288 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 11 Jul 2012 00:31:06 +0200 Subject: [PATCH] drm/i915: fix up PCH backlight #define mixup I so totally suck. This can cause a black screen if (for whatever reason) the bios hasn't set this bit itself. This regression has been introduced in commit 7cf4160148136deb31ee5f2802857dd935a38529 Author: Daniel Vetter Date: Tue Jun 5 10:07:09 2012 +0200 drm/i915: clear up backlight #define confusion on gen4+ Tested-by: Kenneth Graunke Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 7aa6e97c2c72..acc99b21e0b6 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1900,7 +1900,7 @@ /* PCH CTL1 is totally different, all but the below bits are reserved. CTL2 is * like the normal CTL from gen4 and earlier. Hooray for confusing naming. */ #define BLC_PWM_PCH_CTL1 0xc8250 -#define BLM_PCH_PWM_ENABLE (1 << 30) +#define BLM_PCH_PWM_ENABLE (1 << 31) #define BLM_PCH_OVERRIDE_ENABLE (1 << 30) #define BLM_PCH_POLARITY (1 << 29) #define BLC_PWM_PCH_CTL2 0xc8254 -- 2.20.1