0012-drm-sun4i-Fix-mipi-dsi-panel-framerate-being-2-3-of-.patch

From 29533cb13f24e26e7ddbc044597a3020437352e2 Mon Sep 17 00:00:00 2001
From: Ondrej Jirman <megous@megous.com>
Date: Thu, 29 Oct 2020 01:13:49 +0100
Subject: [PATCH 1/2] drm/sun4i: Fix mipi-dsi panel framerate being 2/3 of the
 expected value

This happens on Pinephone and on Pinetab. Both use MIPI-DSI panels.

On Pinephone framerate is 36.6 instead of expected 55.
On Pinetab the similar 2/3 ratio holds.

Myabe there's a bug in BSP and dclk_div should really be 6 instead of 4.

Signed-off-by: Ondrej Jirman <megous@megous.com>
---
 drivers/gpu/drm/sun4i/sun4i_tcon.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index ab06f5e1fc952..1c56b4fb9ac89 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -398,8 +398,8 @@ static void sun4i_tcon0_mode_set_cpu(struct sun4i_tcon *tcon,
 	u32 block_space, start_delay;
 	u32 tcon_div;
 
-	tcon->dclk_min_div = SUN6I_DSI_TCON_DIV;
-	tcon->dclk_max_div = SUN6I_DSI_TCON_DIV;
+	tcon->dclk_min_div = 6;
+	tcon->dclk_max_div = 6;
 
 	sun4i_tcon0_mode_set_common(tcon, mode);
 
-- 
2.29.1