diff options
| author | Madhav Chauhan <madhav.chauhan@intel.com> | 2018-10-15 17:27:54 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2018-10-22 09:44:30 +0300 |
| commit | e72cce53101767230b7800c5b6e6341aaa451632 (patch) | |
| tree | eff9fc476b828a3a3abde0b04463013d20513dce /drivers/gpu/drm/i915/icl_dsi.c | |
| parent | b687c1984c4fbb40ba9058c5db9a604ffc466f5e (diff) | |
drm/i915/icl: Program DSI clock and data lane timing params
This patch programs D-PHY timing parameters for the
clock and data lane (in escape clocks) of DSI
controller (DSI port 0 and 1).
These programmed timings would be used by DSI Controller
to calculate link transition latencies of the data and
clock lanes.
v2: Use newly defined bitfields for data and clock lane
v3 by Jani:
- Rebase on dphy abstraction
- Reduce local variables
- Remove unrelated comment changes (Ville)
- Use the same style for range checks as VLV (Ville)
- Assign, don't OR dphy_reg contents
Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/70d491e2357f328a63b67ea3c43cb57a1d469c15.1539613303.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/icl_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/icl_dsi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c index ff5b285ca495..9602b6532028 100644 --- a/drivers/gpu/drm/i915/icl_dsi.c +++ b/drivers/gpu/drm/i915/icl_dsi.c @@ -291,6 +291,24 @@ static void gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder) tmp |= intel_dsi->init_count; I915_WRITE(ICL_DSI_T_INIT_MASTER(port), tmp); } + + /* Program DPHY clock lanes timings */ + for_each_dsi_port(port, intel_dsi->ports) { + I915_WRITE(DPHY_CLK_TIMING_PARAM(port), intel_dsi->dphy_reg); + + /* shadow register inside display core */ + I915_WRITE(DSI_CLK_TIMING_PARAM(port), intel_dsi->dphy_reg); + } + + /* Program DPHY data lanes timings */ + for_each_dsi_port(port, intel_dsi->ports) { + I915_WRITE(DPHY_DATA_TIMING_PARAM(port), + intel_dsi->dphy_data_lane_reg); + + /* shadow register inside display core */ + I915_WRITE(DSI_DATA_TIMING_PARAM(port), + intel_dsi->dphy_data_lane_reg); + } } static void gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder) |