drm/msm/dsi: dsi_host: drop unused clocks

Several source clocks are not used anymore, so stop handling them.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/542558/
Link: https://lore.kernel.org/r/20230614224402.296825-1-dmitry.baryshkov@linaro.org

drivers/gpu/drm/msm/dsi/dsi_host.c

@@ -118,8 +118,6 @@ struct msm_dsi_host {
 	struct clk *byte_clk;
 	struct clk *esc_clk;
 	struct clk *pixel_clk;
-	struct clk *byte_clk_src;
-	struct clk *pixel_clk_src;
 	struct clk *byte_intf_clk;
 
 	unsigned long byte_clk_rate;
@@ -129,8 +127,6 @@ struct msm_dsi_host {
 
 	/* DSI v2 specific clocks */
 	struct clk *src_clk;
-	struct clk *esc_clk_src;
-	struct clk *dsi_clk_src;
 
 	unsigned long src_clk_rate;
 
@@ -267,21 +263,6 @@ int dsi_clk_init_v2(struct msm_dsi_host *msm_host)
 		return ret;
 	}
 
-	msm_host->esc_clk_src = clk_get_parent(msm_host->esc_clk);
-	if (!msm_host->esc_clk_src) {
-		ret = -ENODEV;
-		pr_err("%s: can't get esc clock parent. ret=%d\n",
-			__func__, ret);
-		return ret;
-	}
-
-	msm_host->dsi_clk_src = clk_get_parent(msm_host->src_clk);
-	if (!msm_host->dsi_clk_src) {
-		ret = -ENODEV;
-		pr_err("%s: can't get src clock parent. ret=%d\n",
-			__func__, ret);
-	}
-
 	return ret;
 }
 
@@ -346,20 +327,6 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host)
 		goto exit;
 	}
 
-	msm_host->byte_clk_src = clk_get_parent(msm_host->byte_clk);
-	if (IS_ERR(msm_host->byte_clk_src)) {
-		ret = PTR_ERR(msm_host->byte_clk_src);
-		pr_err("%s: can't find byte_clk clock. ret=%d\n", __func__, ret);
-		goto exit;
-	}
-
-	msm_host->pixel_clk_src = clk_get_parent(msm_host->pixel_clk);
-	if (IS_ERR(msm_host->pixel_clk_src)) {
-		ret = PTR_ERR(msm_host->pixel_clk_src);
-		pr_err("%s: can't find pixel_clk clock. ret=%d\n", __func__, ret);
-		goto exit;
-	}
-
 	if (cfg_hnd->ops->clk_init_ver)
 		ret = cfg_hnd->ops->clk_init_ver(msm_host);
 exit: