struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
- u32 temp, lvds_sync = 0;
+ u32 temp;
temp = I915_READ(LVDS);
temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
else
temp &= ~LVDS_ENABLE_DITHER;
}
+ temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
- lvds_sync |= LVDS_HSYNC_POLARITY;
+ temp |= LVDS_HSYNC_POLARITY;
if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
- lvds_sync |= LVDS_VSYNC_POLARITY;
- if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY))
- != lvds_sync) {
- char flags[2] = "-+";
- DRM_INFO("Changing LVDS panel from "
- "(%chsync, %cvsync) to (%chsync, %cvsync)\n",
- flags[!(temp & LVDS_HSYNC_POLARITY)],
- flags[!(temp & LVDS_VSYNC_POLARITY)],
- flags[!(lvds_sync & LVDS_HSYNC_POLARITY)],
- flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]);
- temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
- temp |= lvds_sync;
- }
+ temp |= LVDS_VSYNC_POLARITY;
I915_WRITE(LVDS, temp);
}
int ret;
struct fdi_m_n m_n = {0};
u32 temp;
- u32 lvds_sync = 0;
int target_clock, pixel_multiplier, lane, link_bw, factor;
unsigned int pipe_bpp;
bool dither;
* appropriately here, but we need to look more thoroughly into how
* panels behave in the two modes.
*/
+ temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
- lvds_sync |= LVDS_HSYNC_POLARITY;
+ temp |= LVDS_HSYNC_POLARITY;
if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
- lvds_sync |= LVDS_VSYNC_POLARITY;
- if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY))
- != lvds_sync) {
- char flags[2] = "-+";
- DRM_INFO("Changing LVDS panel from "
- "(%chsync, %cvsync) to (%chsync, %cvsync)\n",
- flags[!(temp & LVDS_HSYNC_POLARITY)],
- flags[!(temp & LVDS_VSYNC_POLARITY)],
- flags[!(lvds_sync & LVDS_HSYNC_POLARITY)],
- flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]);
- temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
- temp |= lvds_sync;
- }
+ temp |= LVDS_VSYNC_POLARITY;
I915_WRITE(PCH_LVDS, temp);
}