diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2016-09-19 15:02:27 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-09-19 18:37:45 +0300 |
| commit | b1cb1bd29189a017bf2aab879ba7fe22b62c3abe (patch) | |
| tree | b4e15c03b064c54c4de58dabdd8a35dba60d3076 /drivers | |
| parent | 044aad65ee02abe2c51e06052df03a5c3f573f78 (diff) | |
| download | linux-b1cb1bd29189a017bf2aab879ba7fe22b62c3abe.tar.bz2 | |
drm/i915/dsi: update reset and power sequences in panel prepare/unprepare hooks
Based on the documentation alone, it's anyone's guess when exactly we
should be running these sequences. Add power on/off sequences where they
feel logical and update assert/deassert reset. The drm panel hooks don't
currently offer us more granularity anyway.
v2: update assert/deassert reset as well (Ville)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1543320494df953fa073e136248238eaa1eed059.1474286487.git.jani.nikula@intel.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c index 29156995a265..2c5d14eb7851 100644 --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c @@ -459,6 +459,8 @@ static void generic_exec_sequence(struct drm_panel *panel, enum mipi_seq seq_id) static int vbt_panel_prepare(struct drm_panel *panel) { generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET); + generic_exec_sequence(panel, MIPI_SEQ_POWER_ON); + generic_exec_sequence(panel, MIPI_SEQ_DEASSERT_RESET); generic_exec_sequence(panel, MIPI_SEQ_INIT_OTP); return 0; @@ -466,7 +468,8 @@ static int vbt_panel_prepare(struct drm_panel *panel) static int vbt_panel_unprepare(struct drm_panel *panel) { - generic_exec_sequence(panel, MIPI_SEQ_DEASSERT_RESET); + generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET); + generic_exec_sequence(panel, MIPI_SEQ_POWER_OFF); return 0; } |