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| author | David S. Miller <davem@davemloft.net> | 2014-07-16 14:09:34 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-16 14:09:34 -0700 |
| commit | 1a98c69af1ecd97bfd1f4e4539924a9192434e36 (patch) | |
| tree | a243defcf921ea174f8e43fce11d06830a6a9c36 /drivers/gpu/drm/i915/intel_dsi.c | |
| parent | 7a575f6b907ea5d207d2b5010293c189616eae34 (diff) | |
| parent | b6603fe574af289dbe9eb9fb4c540bca04f5a053 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 02f99d768d49..3fd082933c87 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -117,17 +117,18 @@ static void intel_dsi_device_ready(struct intel_encoder *encoder) /* bandgap reset is needed after everytime we do power gate */ band_gap_reset(dev_priv); + I915_WRITE(MIPI_DEVICE_READY(pipe), ULPS_STATE_ENTER); + usleep_range(2500, 3000); + val = I915_READ(MIPI_PORT_CTRL(pipe)); I915_WRITE(MIPI_PORT_CTRL(pipe), val | LP_OUTPUT_HOLD); usleep_range(1000, 1500); - I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY | ULPS_STATE_EXIT); - usleep_range(2000, 2500); - I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY); - usleep_range(2000, 2500); - I915_WRITE(MIPI_DEVICE_READY(pipe), 0x00); - usleep_range(2000, 2500); + + I915_WRITE(MIPI_DEVICE_READY(pipe), ULPS_STATE_EXIT); + usleep_range(2500, 3000); + I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY); - usleep_range(2000, 2500); + usleep_range(2500, 3000); } static void intel_dsi_enable(struct intel_encoder *encoder) @@ -271,23 +272,23 @@ static void intel_dsi_clear_device_ready(struct intel_encoder *encoder) DRM_DEBUG_KMS("\n"); - I915_WRITE(MIPI_DEVICE_READY(pipe), ULPS_STATE_ENTER); + I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY | ULPS_STATE_ENTER); usleep_range(2000, 2500); - I915_WRITE(MIPI_DEVICE_READY(pipe), ULPS_STATE_EXIT); + I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY | ULPS_STATE_EXIT); usleep_range(2000, 2500); - I915_WRITE(MIPI_DEVICE_READY(pipe), ULPS_STATE_ENTER); + I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY | ULPS_STATE_ENTER); usleep_range(2000, 2500); - val = I915_READ(MIPI_PORT_CTRL(pipe)); - I915_WRITE(MIPI_PORT_CTRL(pipe), val & ~LP_OUTPUT_HOLD); - usleep_range(1000, 1500); - if (wait_for(((I915_READ(MIPI_PORT_CTRL(pipe)) & AFE_LATCHOUT) == 0x00000), 30)) DRM_ERROR("DSI LP not going Low\n"); + val = I915_READ(MIPI_PORT_CTRL(pipe)); + I915_WRITE(MIPI_PORT_CTRL(pipe), val & ~LP_OUTPUT_HOLD); + usleep_range(1000, 1500); + I915_WRITE(MIPI_DEVICE_READY(pipe), 0x00); usleep_range(2000, 2500); |