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drm/i915/icl: Disable DSI IO power

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This patch configures mode of combo phy as DDI and
disable IO power for DDI ports used by DSI.

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/b68d767717a3b86c26042d0b16abb3943756fcc4.1540900289.git.jani.nikula@intel.com
This commit is contained in:
Madhav Chauhan 2018-10-30 13:56:20 +02:00 committed by Jani Nikula
parent 019cec36f3
commit 0f0fe8497d
1 changed files with 23 additions and 0 deletions
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23
drivers/gpu/drm/i915/icl_dsi.c
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@ -873,6 +873,26 @@ static void gen11_dsi_disable_port(struct intel_encoder *encoder)
}
}
static void gen11_dsi_disable_io_power(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
enum port port;
u32 tmp;
intel_display_power_put(dev_priv, POWER_DOMAIN_PORT_DDI_A_IO);
if (intel_dsi->dual_link)
intel_display_power_put(dev_priv, POWER_DOMAIN_PORT_DDI_B_IO);
/* set mode to DDI */
for_each_dsi_port(port, intel_dsi->ports) {
tmp = I915_READ(ICL_DSI_IO_MODECTL(port));
tmp &= ~COMBO_PHY_MODE_DSI;
I915_WRITE(ICL_DSI_IO_MODECTL(port), tmp);
}
}
static void __attribute__((unused)) gen11_dsi_disable(
struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
@ -895,4 +915,7 @@ static void __attribute__((unused)) gen11_dsi_disable(
/* step3: disable port */
gen11_dsi_disable_port(encoder);
/* step4: disable IO power */
gen11_dsi_disable_io_power(encoder);
}