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drm/i915/glk: Fix DSI enable I/O sequence
author
Madhav Chauhan
<madhav.chauhan@intel.com>
Wed, 1 Mar 2017 18:31:22 +0000
(
00:01
+0530)
committer
Jani Nikula
<jani.nikula@intel.com>
Thu, 2 Mar 2017 14:34:13 +0000
(16:34 +0200)
One of the if statement covers the next line in enable I/O sequence.
This patch correct the same by adding error message.
Fixes:
4644848369c0
("drm/i915/glk: Add MIPIIO Enable/disable sequence")
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link:
http://patchwork.freedesktop.org/patch/msgid/1488393082-30660-1-git-send-email-madhav.chauhan@intel.com
drivers/gpu/drm/i915/intel_dsi.c
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diff --git
a/drivers/gpu/drm/i915/intel_dsi.c
b/drivers/gpu/drm/i915/intel_dsi.c
index
dd38b68
..
323fc09
100644
(file)
--- a/
drivers/gpu/drm/i915/intel_dsi.c
+++ b/
drivers/gpu/drm/i915/intel_dsi.c
@@
-425,6
+425,7
@@
static void glk_dsi_device_ready(struct intel_encoder *encoder)
if (intel_wait_for_register(dev_priv,
MIPI_CTRL(port), GLK_ULPS_NOT_ACTIVE,
GLK_ULPS_NOT_ACTIVE, 20))
+ DRM_ERROR("ULPS is still active\n");
/* Exit ULPS */
val = I915_READ(MIPI_DEVICE_READY(port));