modify data rate limitation (>lGbps/lane) for mipitx
Signed-off-by: shaoming chen <shaoming.chen@xxxxxxxxxxxx>
Signed-off-by: YT Shen <yt.shen@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_mipi_tx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
index fd84914..1ef00ac 100644
--- a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
+++ b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
@@ -177,7 +177,9 @@ static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)
dev_dbg(mipi_tx->dev, "prepare: %u Hz\n", mipi_tx->data_rate);
- if (mipi_tx->data_rate >= 500000000) {
+ if (mipi_tx->data_rate > 1250000000) {
+ return -EINVAL;
+ } else if (mipi_tx->data_rate >= 500000000) {
txdiv = 1;
txdiv0 = 0;
txdiv1 = 0;
--
1.9.1
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