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drm/i915: Fix HW readout for crtc_clock in HDMI mode 

The conversion during HDMI HW readout from port_clock to crtc_clock was
missed when HDMI 10bpc support was added, so fix that.

v2:
- Unscrew the non-HDMI case.

Fixes: cd9e11a8bf ("drm/i915/icl: Add 10-bit support for hdmi")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109593
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190808162547.7009-1-imre.deak@intel.com
(cherry picked from commit 2969a78aea)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
alistair/sunxi64-5.4-dsi
Imre Deak 2019-08-08 19:25:47 +03:00 committed by Jani Nikula
parent d1abaeb3be
commit ed19e3035c
2 changed files with 3 additions and 3 deletions
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4
drivers/gpu/drm/i915/display/intel_ddi.c
View File

@ -1465,8 +1465,8 @@ static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
else if (intel_crtc_has_dp_encoder(pipe_config))
dotclock = intel_dotclock_calculate(pipe_config->port_clock,
&pipe_config->dp_m_n);
else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp == 36)
dotclock = pipe_config->port_clock * 2 / 3;
else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24)
dotclock = pipe_config->port_clock * 24 / pipe_config->pipe_bpp;
else
dotclock = pipe_config->port_clock;

2
drivers/gpu/drm/i915/intel_drv.h
View File

@ -829,7 +829,7 @@ struct intel_crtc_state {
/*
* Frequence the dpll for the port should run at. Differs from the
* adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
* adjusted dotclock e.g. for DP or 10/12bpc hdmi mode. This is also
* already multiplied by pixel_multiplier.
*/
int port_clock;