From 3e6e63952f6f7a42c40751cd88295fd297b80a84 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 4 May 2012 17:18:19 -0300 Subject: [PATCH] drm/i915: mask the video DIP port select Should prevent bugs when changing the port. Signed-off-by: Paulo Zanoni Reviewed-by: Eugeni Dodonov Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_hdmi.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 833052ef7cf5..71e7af91f1b1 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1700,6 +1700,7 @@ #define VIDEO_DIP_ENABLE (1 << 31) #define VIDEO_DIP_PORT_B (1 << 29) #define VIDEO_DIP_PORT_C (2 << 29) +#define VIDEO_DIP_PORT_MASK (3 << 29) #define VIDEO_DIP_ENABLE_AVI (1 << 21) #define VIDEO_DIP_ENABLE_VENDOR (2 << 21) #define VIDEO_DIP_ENABLE_SPD (8 << 21) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index af88313d72d0..952eaf777ac5 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -125,6 +125,7 @@ static void i9xx_write_infoframe(struct drm_encoder *encoder, /* XXX first guess at handling video port, is this corrent? */ + val &= ~VIDEO_DIP_PORT_MASK; if (intel_hdmi->sdvox_reg == SDVOB) val |= VIDEO_DIP_PORT_B; else if (intel_hdmi->sdvox_reg == SDVOC) -- 2.34.1