Hi Yannick,
Many thanks for your patch,
Reviewed-by: Philippe Cornu <philippe.co...@st.com>
Philippe :-)
On 6/24/20 10:43 AM, Yannick Fertre wrote:
> 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);
>
