drm/msm/mdp4: get rid of struct mdp4_platform_config

Struct mdp4_platform_config is a relict from the DT-conversion time.
Move the max_clk field to the mdp4_kms_init(), the place where it is
used and drop the struct mdp4_platform_config and the mdp4_get_config()
function.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/485050/
Link: https://lore.kernel.org/r/20220505135008.1351533-3-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c

@@ -13,8 +13,6 @@
 #include "msm_mmu.h"
 #include "mdp4_kms.h"
 
-static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev);
-
 static int mdp4_hw_init(struct msm_kms *kms)
 {
 	struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
@@ -386,7 +384,6 @@ static void read_mdp_hw_revision(struct mdp4_kms *mdp4_kms,
 static int mdp4_kms_init(struct drm_device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev->dev);
-	struct mdp4_platform_config *config = mdp4_get_config(pdev);
 	struct msm_drm_private *priv = dev->dev_private;
 	struct mdp4_kms *mdp4_kms;
 	struct msm_kms *kms = NULL;
@@ -394,6 +391,10 @@ static int mdp4_kms_init(struct drm_device *dev)
 	struct msm_gem_address_space *aspace;
 	int irq, ret;
 	u32 major, minor;
+	unsigned long max_clk;
+
+	/* TODO: Chips that aren't apq8064 have a 200 Mhz max_clk */
+	max_clk = 266667000;
 
 	mdp4_kms = kzalloc(sizeof(*mdp4_kms), GFP_KERNEL);
 	if (!mdp4_kms) {
@@ -461,7 +462,7 @@ static int mdp4_kms_init(struct drm_device *dev)
 		goto fail;
 	}
 
-	clk_set_rate(mdp4_kms->clk, config->max_clk);
+	clk_set_rate(mdp4_kms->clk, max_clk);
 
 	read_mdp_hw_revision(mdp4_kms, &major, &minor);
 
@@ -481,7 +482,7 @@ static int mdp4_kms_init(struct drm_device *dev)
 			ret = PTR_ERR(mdp4_kms->lut_clk);
 			goto fail;
 		}
-		clk_set_rate(mdp4_kms->lut_clk, config->max_clk);
+		clk_set_rate(mdp4_kms->lut_clk, max_clk);
 	}
 
 	pm_runtime_enable(dev->dev);
@@ -554,16 +555,6 @@ static int mdp4_kms_init(struct drm_device *dev)
 	return ret;
 }
 
-static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev)
-{
-	static struct mdp4_platform_config config = {};
-
-	/* TODO: Chips that aren't apq8064 have a 200 Mhz max_clk */
-	config.max_clk = 266667000;
-
-	return &config;
-}
-
 static const struct dev_pm_ops mdp4_pm_ops = {
 	.prepare = msm_pm_prepare,
 	.complete = msm_pm_complete,

drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.h

@@ -42,11 +42,6 @@ struct mdp4_kms {
 };
 #define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base)
 
-/* platform config data (ie. from DT, or pdata) */
-struct mdp4_platform_config {
-	uint32_t max_clk;
-};
-
 static inline void mdp4_write(struct mdp4_kms *mdp4_kms, u32 reg, u32 data)
 {
 	msm_writel(data, mdp4_kms->mmio + reg);