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author | Shobhit Kumar <shobhit.kumar@intel.com> | 2013-12-11 16:22:05 +0400 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-12-12 02:52:19 +0400 |
commit | 1dbd7cb256913e5b8d6a4837185b45e3467dff42 (patch) | |
tree | fdc9f483560f9588b6905a78615bf2162f00d65c /drivers/gpu/drm/i915/intel_dsi.h | |
parent | 8e1eed5aa8fe6cdd2c445b7aded42498523ad4dd (diff) | |
download | linux-1dbd7cb256913e5b8d6a4837185b45e3467dff42.tar.xz |
drm/i915: Reorganize the DSI enable/disable sequence
Basically ULPS handling during enable/disable has been moved to
pre_enable and post_disable phases. PLL and panel power disable
also has been moved to post_disable phase. The ULPS entry/exit
sequneces as suggested by HW team is as follows -
During enable time -
set DEVICE_READY --> Clear DEVICE_READY --> set DEVICE_READY
And during disable time to flush all FIFOs -
set ENTER_SLEEP --> EXIT_SLEEP --> ENTER_SLEEP
Also during disbale sequnece sub-encoder disable is moved to the end
after port is disabled.
v2: Based on comments from Ville
- Detailed epxlaination in the commit messgae
- Moved parameter changes out into another patch
- Backlight enabling will be a new patch
v3: Updated as per Jani's comments
- Removed the I915_WRITE_BITS as it is not needed
- Moved panel_reset and send_otp_cmds hooks to dsi_pre_enable
- Moved disable_panel_power hook to dsi_post_disable
- Replace hardcoding with AFE_LATCHOUT
v4: Make intel_dsi_device_ready and intel_dsi_clear_device_ready static
Signed-off-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi.h')
-rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h index 14509d65f78d..387dfe13cd9b 100644 --- a/drivers/gpu/drm/i915/intel_dsi.h +++ b/drivers/gpu/drm/i915/intel_dsi.h @@ -41,6 +41,8 @@ struct intel_dsi_dev_ops { void (*panel_reset)(struct intel_dsi_device *dsi); + void (*disable_panel_power)(struct intel_dsi_device *dsi); + /* one time programmable commands if needed */ void (*send_otp_cmds)(struct intel_dsi_device *dsi); |