From: Simon Que Date: Fri, 11 Nov 2011 01:50:26 +0000 (-0800) Subject: drivers: i915: Fix BLC PWM register setup X-Git-Tag: v3.4-rc1~143^2~98^2~9 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=2aded1b6bb83cabe3ee5763e5c3834e36bf4a61f;p=linux.git drivers: i915: Fix BLC PWM register setup There is an error in i915_read_blc_pwm_ctl, where the register values are not being copied correctly. BLC_PWM_CTL and BLC_PWM_CTL2 are getting mixed up. This patch fixes that so that saveBLC_PWM_CTL2 and not saveBLC_PWM_CTL is copied to the BLC_PWM_CTL2 register. Signed-off-by: Simon Que Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 04d79fd1dc9d..c935cdaa2154 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -141,8 +141,8 @@ static u32 i915_read_blc_pwm_ctl(struct drm_i915_private *dev_priv) dev_priv->saveBLC_PWM_CTL2 = val; } else if (val == 0) { I915_WRITE(BLC_PWM_PCH_CTL2, - dev_priv->saveBLC_PWM_CTL); - val = dev_priv->saveBLC_PWM_CTL; + dev_priv->saveBLC_PWM_CTL2); + val = dev_priv->saveBLC_PWM_CTL2; } } else { val = I915_READ(BLC_PWM_CTL);