From 22509ec8676fdbba8da525b9ec9cb3ddb4cb71b0 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 4 May 2012 17:18:17 -0300 Subject: [PATCH] drm/i915: change coding style of the write_infoframe functions Don't use intermediate variables, change the value of 'val' as we go through the function. The new style looks more similar to the rest of our code. IMHO, it's also easier to read and change. Signed-off-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_hdmi.c | 43 +++++++++++++++++-------------- 1 file changed, 23 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index bf218753cbaf..b84d19d0eaed 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -120,32 +120,33 @@ static void i9xx_write_infoframe(struct drm_encoder *encoder, struct drm_device *dev = encoder->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); - u32 port, flags, val = I915_READ(VIDEO_DIP_CTL); + u32 val = I915_READ(VIDEO_DIP_CTL); unsigned i, len = DIP_HEADER_SIZE + frame->len; /* XXX first guess at handling video port, is this corrent? */ if (intel_hdmi->sdvox_reg == SDVOB) - port = VIDEO_DIP_PORT_B; + val |= VIDEO_DIP_PORT_B; else if (intel_hdmi->sdvox_reg == SDVOC) - port = VIDEO_DIP_PORT_C; + val |= VIDEO_DIP_PORT_C; else return; - flags = intel_infoframe_index(frame); - val &= ~VIDEO_DIP_SELECT_MASK; + val |= intel_infoframe_index(frame); + + val |= VIDEO_DIP_ENABLE; - I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags); + I915_WRITE(VIDEO_DIP_CTL, val); for (i = 0; i < len; i += 4) { I915_WRITE(VIDEO_DIP_DATA, *data); data++; } - flags |= intel_infoframe_flags(frame); + val |= intel_infoframe_flags(frame); - I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags); + I915_WRITE(VIDEO_DIP_CTL, val); } static void ironlake_write_infoframe(struct drm_encoder *encoder, @@ -158,24 +159,25 @@ static void ironlake_write_infoframe(struct drm_encoder *encoder, struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int reg = TVIDEO_DIP_CTL(intel_crtc->pipe); unsigned i, len = DIP_HEADER_SIZE + frame->len; - u32 flags, val = I915_READ(reg); + u32 val = I915_READ(reg); intel_wait_for_vblank(dev, intel_crtc->pipe); - flags = intel_infoframe_index(frame); - val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */ + val |= intel_infoframe_index(frame); - I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags); + val |= VIDEO_DIP_ENABLE; + + I915_WRITE(reg, val); for (i = 0; i < len; i += 4) { I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data); data++; } - flags |= intel_infoframe_flags(frame); + val |= intel_infoframe_flags(frame); - I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags); + I915_WRITE(reg, val); } static void vlv_write_infoframe(struct drm_encoder *encoder, @@ -188,24 +190,25 @@ static void vlv_write_infoframe(struct drm_encoder *encoder, struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int reg = VLV_TVIDEO_DIP_CTL(intel_crtc->pipe); unsigned i, len = DIP_HEADER_SIZE + frame->len; - u32 flags, val = I915_READ(reg); + u32 val = I915_READ(reg); intel_wait_for_vblank(dev, intel_crtc->pipe); - flags = intel_infoframe_index(frame); - val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */ + val |= intel_infoframe_index(frame); + + val |= VIDEO_DIP_ENABLE; - I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags); + I915_WRITE(reg, val); for (i = 0; i < len; i += 4) { I915_WRITE(VLV_TVIDEO_DIP_DATA(intel_crtc->pipe), *data); data++; } - flags |= intel_infoframe_flags(frame); + val |= intel_infoframe_flags(frame); - I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags); + I915_WRITE(reg, val); } static void intel_set_infoframe(struct drm_encoder *encoder, -- 2.34.1