Check the hardware version of DSI. Versions 1.30 & 1.31 are only
supported.
Signed-off-by: Yannick Fertre <yannick.fer...@st.com>
---
drivers/video/stm32/stm32_dsi.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/video/stm32/stm32_dsi.c b/drivers/video/stm32/stm32_dsi.c
index 04796435f1..31ab8ebec7 100644
--- a/drivers/video/stm32/stm32_dsi.c
+++ b/drivers/video/stm32/stm32_dsi.c
@@ -271,7 +271,6 @@ static int dsi_get_lane_mbps(void *priv_data, struct
display_timing *timings,
u32 val;
/* Update lane capabilities according to hw version */
- dsi->hw_version = dsi_read(dsi, DSI_VERSION) & VERSION;
dsi->lane_min_kbps = LANE_MIN_KBPS;
dsi->lane_max_kbps = LANE_MAX_KBPS;
if (dsi->hw_version == HWVER_131) {
@@ -475,6 +474,15 @@ static int stm32_dsi_probe(struct udevice *dev)
/* Reset */
reset_deassert(&rst);
+ /* check hardware version */
+ priv->hw_version = dsi_read(priv, DSI_VERSION) & VERSION;
+ if (priv->hw_version != HWVER_130 &&
+ priv->hw_version != HWVER_131) {
+ dev_err(dev, "DSI version 0x%x not supported\n",
priv->hw_version);
+ ret = -ENODEV;
+ goto err_clk;
+ }
+
return 0;
err_clk:
clk_disable(&clk);
--
2.17.1
