From: Paulo Zanoni Date: Wed, 8 Aug 2012 17:15:27 +0000 (-0300) Subject: drm/i915: fix pipe DDI mode select X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3f7c447faab3e750b0b2f94edad605ba8eb28a7f;p=linux-beck.git drm/i915: fix pipe DDI mode select Mask the value before changing it and also select DVI when needed. DVI was working in cases where the BIOS was setting the correct value because we were not masking the value before changing it. Signed-off-by: Paulo Zanoni Reviewed-by: Jani Nikula Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 1310caaaafd6..97f00fb5307f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4302,6 +4302,7 @@ /* Those bits are ignored by pipe EDP since it can only connect to DDI A */ #define PIPE_DDI_PORT_MASK (7<<28) #define PIPE_DDI_SELECT_PORT(x) ((x)<<28) +#define PIPE_DDI_MODE_SELECT_MASK (7<<24) #define PIPE_DDI_MODE_SELECT_HDMI (0<<24) #define PIPE_DDI_MODE_SELECT_DVI (1<<24) #define PIPE_DDI_MODE_SELECT_DP_SST (2<<24) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 32604ac80204..0d7acd76c1b4 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -726,13 +726,18 @@ void intel_ddi_mode_set(struct drm_encoder *encoder, temp = I915_READ(DDI_FUNC_CTL(pipe)); temp &= ~PIPE_DDI_PORT_MASK; temp &= ~PIPE_DDI_BPC_12; + temp &= ~PIPE_DDI_MODE_SELECT_MASK; temp |= PIPE_DDI_SELECT_PORT(port) | - PIPE_DDI_MODE_SELECT_HDMI | ((intel_crtc->bpp > 24) ? PIPE_DDI_BPC_12 : PIPE_DDI_BPC_8) | PIPE_DDI_FUNC_ENABLE; + if (intel_hdmi->has_hdmi_sink) + temp |= PIPE_DDI_MODE_SELECT_HDMI; + else + temp |= PIPE_DDI_MODE_SELECT_DVI; + I915_WRITE(DDI_FUNC_CTL(pipe), temp); intel_hdmi->set_infoframes(encoder, adjusted_mode);