Signed-off-by: Gaurav K Singh <gaurav.k.singh@xxxxxxxxx> Signed-off-by: Shobhit Kumar <shobhit.kumar@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_dsi_cmd.c | 35 ++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dsi_cmd.c b/drivers/gpu/drm/i915/intel_dsi_cmd.c index eb698b1..a70656e 100644 --- a/drivers/gpu/drm/i915/intel_dsi_cmd.c +++ b/drivers/gpu/drm/i915/intel_dsi_cmd.c @@ -394,6 +394,7 @@ int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs) struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); enum pipe pipe = intel_crtc->pipe; u32 mask; + int count = 1; /* XXX: pipe, hs */ if (hs) @@ -401,18 +402,28 @@ int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs) else cmd |= DPI_LP_MODE; - /* clear bit */ - I915_WRITE(MIPI_INTR_STAT(pipe), SPL_PKT_SENT_INTERRUPT); - - /* XXX: old code skips write if control unchanged */ - if (cmd == I915_READ(MIPI_DPI_CONTROL(pipe))) - DRM_ERROR("Same special packet %02x twice in a row.\n", cmd); - - I915_WRITE(MIPI_DPI_CONTROL(pipe), cmd); - - mask = SPL_PKT_SENT_INTERRUPT; - if (wait_for((I915_READ(MIPI_INTR_STAT(pipe)) & mask) == mask, 100)) - DRM_ERROR("Video mode command 0x%08x send failed.\n", cmd); + if (intel_dsi->dual_link) + count = 2; + + do { + /* clear bit */ + I915_WRITE(MIPI_INTR_STAT(pipe), SPL_PKT_SENT_INTERRUPT); + + /* XXX: old code skips write if control unchanged */ + if (cmd == I915_READ(MIPI_DPI_CONTROL(pipe))) + DRM_ERROR("Same special packet %02x twice in a row.\n", + cmd); + I915_WRITE(MIPI_DPI_CONTROL(pipe), cmd); + + mask = SPL_PKT_SENT_INTERRUPT; + if (wait_for((I915_READ(MIPI_INTR_STAT(pipe)) & mask) == + mask, 100)) + DRM_ERROR("Video mode command 0x%08x send failed.\n", + cmd); + /* For Port C for dual link */ + if (intel_dsi->dual_link) + pipe = PIPE_B; + } while (--count > 0); return 0; } -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx