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drm/i915/tgl/dsi: Program TRANS_VBLANK register 

Program vblank register for mipi dsi in video mode
on TGL.

Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190730073648.5157-2-vandita.kulkarni@intel.com
This commit is contained in:
Vandita Kulkarni 2019-07-30 13:06:43 +05:30 committed by Uma Shankar
parent 707d26dcc1
commit 3522a33a27
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/i915/display/icl_dsi.c
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@ -862,6 +862,15 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder,
dsi_trans = dsi_port_to_transcoder(port);
I915_WRITE(VSYNCSHIFT(dsi_trans), vsync_shift);
}
/* program TRANS_VBLANK register, should be same as vtotal programmed */
if (INTEL_GEN(dev_priv) >= 12) {
for_each_dsi_port(port, intel_dsi->ports) {
dsi_trans = dsi_port_to_transcoder(port);
I915_WRITE(VBLANK(dsi_trans),
(vactive - 1) | ((vtotal - 1) << 16));
}
}
}
static void gen11_dsi_enable_transcoder(struct intel_encoder *encoder)