For TGL, there is no need to keep DDI clock on till IO enabling for mipi dsi.
Signed-off-by: Vandita Kulkarni <[email protected]> Reviewed-by: Uma Shankar <[email protected]> --- drivers/gpu/drm/i915/display/icl_dsi.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c index c6cda529c5bb..eaf2779b89b8 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.c +++ b/drivers/gpu/drm/i915/display/icl_dsi.c @@ -607,7 +607,10 @@ static void gen11_dsi_map_pll(struct intel_encoder *encoder, I915_WRITE(ICL_DPCLKA_CFGCR0, val); for_each_dsi_phy(phy, intel_dsi->phys) { - val &= ~ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy); + if (INTEL_GEN(dev_priv) >= 12) + val |= ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy); + else + val &= ~ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy); } I915_WRITE(ICL_DPCLKA_CFGCR0, val); @@ -951,6 +954,8 @@ static void gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config) { + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + /* step 4a: power up all lanes of the DDI used by DSI */ gen11_dsi_power_up_lanes(encoder); @@ -973,7 +978,8 @@ gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder, gen11_dsi_configure_transcoder(encoder, pipe_config); /* Step 4l: Gate DDI clocks */ - gen11_dsi_gate_clocks(encoder); + if (IS_GEN(dev_priv, 11)) + gen11_dsi_gate_clocks(encoder); } static void gen11_dsi_powerup_panel(struct intel_encoder *encoder) -- 2.21.0.5.gaeb582a _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
