[added to the v4.1 stable tree] drm: rcar-du: lvds: Fix PLL frequency-related configuration

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From: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>

This patch has been added to the v4.1 stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit 5e1ac3bdc6bbb4f378251b87625b8acfbfc4ae82 ]

The frequency checks don't match the datasheet, fix them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
 drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c
index 85043c5bad03..5188972a6a02 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c
@@ -56,11 +56,11 @@ static int rcar_du_lvdsenc_start(struct rcar_du_lvdsenc *lvds,
 		return ret;
 
 	/* PLL clock configuration */
-	if (freq <= 38000)
+	if (freq < 39000)
 		pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_38M;
-	else if (freq <= 60000)
+	else if (freq < 61000)
 		pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_60M;
-	else if (freq <= 121000)
+	else if (freq < 121000)
 		pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_121M;
 	else
 		pllcr = LVDPLLCR_PLLDLYCNT_150M;
-- 
2.11.0




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