Signed-off-by: Shobhit Kumar <[email protected]>
Reviewed-by: Jani Nikula <[email protected]>
---
drivers/gpu/drm/i915/intel_dsi.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index dfcdb10..d8eccda 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -229,6 +229,23 @@ static void intel_dsi_disable(struct intel_encoder
*encoder)
msleep(2);
}
+ /* Panel commands can be sent when clock is in LP11 */
+ I915_WRITE(MIPI_DEVICE_READY(pipe), 0x0);
+
+ temp = I915_READ(MIPI_CTRL(pipe));
+ temp &= ~ESCAPE_CLOCK_DIVIDER_MASK;
+ I915_WRITE(MIPI_CTRL(pipe), temp |
+ intel_dsi->escape_clk_div <<
+ ESCAPE_CLOCK_DIVIDER_SHIFT);
+
+ I915_WRITE(MIPI_EOT_DISABLE(pipe), CLOCKSTOP);
+
+ temp = I915_READ(MIPI_DSI_FUNC_PRG(pipe));
+ temp &= ~VID_MODE_FORMAT_MASK;
+ I915_WRITE(MIPI_DSI_FUNC_PRG(pipe), temp);
+
+ I915_WRITE(MIPI_DEVICE_READY(pipe), 0x1);
+
/* if disable packets are sent before sending shutdown packet then in
* some next enable sequence send turn on packet error is observed */
if (intel_dsi->dev.dev_ops->disable)
--
1.8.3.2
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