Add Support for DC states on Dg2.
v2: Add dc9 as the max supported DC states and disable DC5.
v3: set max_dc to 0. (Imre)
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>(v1)
---
drivers/gpu/drm/i915/display/intel_display_power.c | 4 +++-
drivers/gpu/drm/i915/display/intel_dmc.c | 10 +++++++++-
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 1d9bd5808849..15b15f434fcf 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -907,7 +907,9 @@ static u32 get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
if (!HAS_DISPLAY(dev_priv))
return 0;
- if (IS_DG1(dev_priv))
+ if (IS_DG2(dev_priv))
+ max_dc = 0;
+ else if (IS_DG1(dev_priv))
max_dc = 3;
else if (DISPLAY_VER(dev_priv) >= 12)
max_dc = 4;
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 257cf662f9f4..2f01aca4d981 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -52,6 +52,10 @@
#define DISPLAY_VER12_DMC_MAX_FW_SIZE ICL_DMC_MAX_FW_SIZE
+#define DG2_DMC_PATH DMC_PATH(dg2, 2, 06)
+#define DG2_DMC_VERSION_REQUIRED DMC_VERSION(2, 06)
+MODULE_FIRMWARE(DG2_DMC_PATH);
+
#define ADLP_DMC_PATH DMC_PATH(adlp, 2, 16)
#define ADLP_DMC_VERSION_REQUIRED DMC_VERSION(2, 16)
MODULE_FIRMWARE(ADLP_DMC_PATH);
@@ -688,7 +692,11 @@ void intel_dmc_ucode_init(struct drm_i915_private *dev_priv)
*/
intel_dmc_runtime_pm_get(dev_priv);
- if (IS_ALDERLAKE_P(dev_priv)) {
+ if (IS_DG2(dev_priv)) {
+ dmc->fw_path = DG2_DMC_PATH;
+ dmc->required_version = DG2_DMC_VERSION_REQUIRED;
+ dmc->max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE;
+ } else if (IS_ALDERLAKE_P(dev_priv)) {
dmc->fw_path = ADLP_DMC_PATH;
dmc->required_version = ADLP_DMC_VERSION_REQUIRED;
dmc->max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE;
--
2.25.1
