At the moment both min and max dclk div are set to 7.
This doesn't allow to have lower frequencies.
Increase dclk_max_div to 18 to achieve 30Mhz.
Signed-off-by: Giulio Benetti <giulio.bene...@micronovasrl.com>
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c
b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 029d2ce..bb35f41 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -278,7 +278,7 @@ static void sun4i_tcon0_mode_set_lvds(struct sun4i_tcon
*tcon,
u32 reg, val = 0;
tcon->dclk_min_div = 7;
- tcon->dclk_max_div = 7;
+ tcon->dclk_max_div = 18;
sun4i_tcon0_mode_set_common(tcon, mode);
/* Adjust clock delay */
--
2.7.4
