drm/i915/dmc: Change max DMC FW size on ADL-P

Increase the max size of DMC on ADL-P to account for support of new
features in the current/upcoming DMC versions.
Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211207023718.322349-1-madhumitha.tolakanahalli.pradeep@intel.com

drivers/gpu/drm/i915/display/intel_dmc.c

@@ -45,6 +45,8 @@
 
 #define GEN12_DMC_MAX_FW_SIZE		ICL_DMC_MAX_FW_SIZE
 
+#define GEN13_DMC_MAX_FW_SIZE		0x20000
+
 #define ADLP_DMC_PATH			DMC_PATH(adlp, 2, 12)
 #define ADLP_DMC_VERSION_REQUIRED	DMC_VERSION(2, 12)
 MODULE_FIRMWARE(ADLP_DMC_PATH);
@@ -682,7 +684,7 @@ void intel_dmc_ucode_init(struct drm_i915_private *dev_priv)
 	if (IS_ALDERLAKE_P(dev_priv)) {
 		dmc->fw_path = ADLP_DMC_PATH;
 		dmc->required_version = ADLP_DMC_VERSION_REQUIRED;
-		dmc->max_fw_size = GEN12_DMC_MAX_FW_SIZE;
+		dmc->max_fw_size = GEN13_DMC_MAX_FW_SIZE;
 	} else if (IS_ALDERLAKE_S(dev_priv)) {
 		dmc->fw_path = ADLS_DMC_PATH;
 		dmc->required_version = ADLS_DMC_VERSION_REQUIRED;