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drm/i915/icl: Disable DDI function

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This patch disables DDI function by writing to
TRANS_DDI_FUNC_CTL registers of DSI ports as part
of DSI disable sequence.

Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b0088d643247135ba96943fa14625f5a43f43633.1540900289.git.jani.nikula@intel.com
This commit is contained in:
Madhav Chauhan 2018-10-30 13:56:17 +02:00 committed by Jani Nikula
parent 4769b598b9
commit 7aa32f7c47
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/i915/icl_dsi.c
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@ -833,6 +833,14 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder)
10))
DRM_ERROR("DSI link not in ULPS\n");
}
/* disable ddi function */
for_each_dsi_port(port, intel_dsi->ports) {
dsi_trans = dsi_port_to_transcoder(port);
tmp = I915_READ(TRANS_DDI_FUNC_CTL(dsi_trans));
tmp &= ~TRANS_DDI_FUNC_ENABLE;
I915_WRITE(TRANS_DDI_FUNC_CTL(dsi_trans), tmp);
}
}
static void __attribute__((unused)) gen11_dsi_disable(