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drm/i915/icl: Disable portsync mode 

This patch disables portsync mode if DSI link
is operating in dual link mode by writing to
TRANS_DDI_FUNC_CTL2 registers.

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/3e608420b58930b6da478801bff018c6e964eb94.1540900289.git.jani.nikula@intel.com
This commit is contained in:
Madhav Chauhan 2018-10-30 13:56:18 +02:00 committed by Jani Nikula
parent 7aa32f7c47
commit 9c83ab1bb3
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/i915/icl_dsi.c
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@ -841,6 +841,16 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder)
tmp &= ~TRANS_DDI_FUNC_ENABLE;
I915_WRITE(TRANS_DDI_FUNC_CTL(dsi_trans), tmp);
}
/* disable port sync mode if dual link */
if (intel_dsi->dual_link) {
for_each_dsi_port(port, intel_dsi->ports) {
dsi_trans = dsi_port_to_transcoder(port);
tmp = I915_READ(TRANS_DDI_FUNC_CTL2(dsi_trans));
tmp &= ~PORT_SYNC_MODE_ENABLE;
I915_WRITE(TRANS_DDI_FUNC_CTL2(dsi_trans), tmp);
}
}
}
static void __attribute__((unused)) gen11_dsi_disable(