FAILED: patch "[PATCH] drm/ingenic: Fix pixclock rate for 24-bit serial panels" failed to apply to 5.10-stable tree

The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 60a6b73dd821e98fe958b2a83393ccd724b306b1 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <[email protected]>
Date: Tue, 23 Mar 2021 14:40:08 +0000
Subject: [PATCH] drm/ingenic: Fix pixclock rate for 24-bit serial panels

When using a 24-bit panel on a 8-bit serial bus, the pixel clock requested by the panel has to be multiplied by 3, since the subpixels are shifted sequentially.

The code (in ingenic_drm_encoder_atomic_check) already computed crtc_state->adjusted_mode->crtc_clock accordingly, but clk_set_rate() used crtc_state->adjusted_mode->clock instead.

index 09225b770bb8..389cad59e090 100644
@@ -342,7 +342,7 @@ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc,
 	if (priv->update_clk_rate) {
 		mutex_lock(&priv->clk_mutex);
 		clk_set_rate(priv->pix_clk,
-			     crtc_state->adjusted_mode.clock * 1000);
+			     crtc_state->adjusted_mode.crtc_clock * 1000);
 		priv->update_clk_rate = false;
 		mutex_unlock(&priv->clk_mutex);
 	}