diff options
| author | Yannick Fertre | 2020-06-24 10:43:59 +0200 |
|---|---|---|
| committer | Anatolij Gustschin | 2020-06-28 01:22:24 +0200 |
| commit | 670eda329329d591d276b02c8918e7918aaedde7 (patch) | |
| tree | c5ff7c08718b9c9faa7c28bb2ed70e5399470c9a /drivers/video | |
| parent | 70b06d95426c016ce302b408f6d2ba9bd3bbda02 (diff) | |
video: check hardware version of DSI
Check the hardware version of DSI. Versions 1.30 & 1.31 are only
supported.
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/stm32/stm32_dsi.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/video/stm32/stm32_dsi.c b/drivers/video/stm32/stm32_dsi.c index 04796435f11..31ab8ebec78 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); |