diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-09-07 12:10:47 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-09-08 14:20:54 +0300 |
| commit | 665a7b04092c5671f3a6c34302aa1538948b4666 (patch) | |
| tree | 4042482bd9bd675d21bd79a73bce21d3131d99f0 /drivers/gpu/drm/i915/display/vlv_dsi_pll.c | |
| parent | e95132ef5d458b3e9d75acfbf4770e8b34de5315 (diff) | |
drm/i915: Feed the DPLL output freq back into crtc_state
Fill port_clock and hw.adjusted_mode.crtc_clock with the actual
frequency we're going to be getting from the hardware. This will
let us accurately compute all derived state that depends on those.
v2: Reintroduce iCLKIP WARN
v3: Try to deal with VLV/BXT DSI PLL as well
Reviewed-by: Jani Nikula <jani.nikula@intel.com> #v1
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907091057.11572-8-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/vlv_dsi_pll.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/vlv_dsi_pll.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/vlv_dsi_pll.c b/drivers/gpu/drm/i915/display/vlv_dsi_pll.c index 2606dbf09ccc..af7402127cd9 100644 --- a/drivers/gpu/drm/i915/display/vlv_dsi_pll.c +++ b/drivers/gpu/drm/i915/display/vlv_dsi_pll.c @@ -177,8 +177,7 @@ int vlv_dsi_pll_compute(struct intel_encoder *encoder, { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); - int ret; - u32 dsi_clk; + int pclk, dsi_clk, ret; dsi_clk = dsi_clk_from_pclk(intel_dsi->pclk, intel_dsi->pixel_format, intel_dsi->lane_count); @@ -200,6 +199,14 @@ int vlv_dsi_pll_compute(struct intel_encoder *encoder, drm_dbg_kms(&dev_priv->drm, "dsi pll div %08x, ctrl %08x\n", config->dsi_pll.div, config->dsi_pll.ctrl); + pclk = vlv_dsi_pclk(encoder, config); + config->port_clock = pclk; + + /* FIXME definitely not right for burst/cmd mode/pixel overlap */ + config->hw.adjusted_mode.crtc_clock = pclk; + if (intel_dsi->dual_link) + config->hw.adjusted_mode.crtc_clock *= 2; + return 0; } @@ -478,6 +485,7 @@ int bxt_dsi_pll_compute(struct intel_encoder *encoder, struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); u8 dsi_ratio, dsi_ratio_min, dsi_ratio_max; u32 dsi_clk; + int pclk; dsi_clk = dsi_clk_from_pclk(intel_dsi->pclk, intel_dsi->pixel_format, intel_dsi->lane_count); @@ -517,6 +525,14 @@ int bxt_dsi_pll_compute(struct intel_encoder *encoder, if (IS_BROXTON(dev_priv) && dsi_ratio <= 50) config->dsi_pll.ctrl |= BXT_DSI_PLL_PVD_RATIO_1; + pclk = bxt_dsi_pclk(encoder, config); + config->port_clock = pclk; + + /* FIXME definitely not right for burst/cmd mode/pixel overlap */ + config->hw.adjusted_mode.crtc_clock = pclk; + if (intel_dsi->dual_link) + config->hw.adjusted_mode.crtc_clock *= 2; + return 0; } |