diff options
Diffstat (limited to 'drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c index f4927a6ce26d..2ec9e7900791 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c @@ -16,6 +16,22 @@ #define MCS_GLOBAL_PARAM 0xb0 #define S6E63M0_DSI_MAX_CHUNK 15 /* CMD + 15 bytes max */ +static int s6e63m0_dsi_dcs_read(struct device *dev, const u8 cmd, u8 *data) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev); + int ret; + + ret = mipi_dsi_dcs_read(dsi, cmd, data, 1); + if (ret < 0) { + DRM_DEV_ERROR(dev, "could not read DCS CMD %02x\n", cmd); + return ret; + } + + DRM_DEV_INFO(dev, "DSI read CMD %02x = %02x\n", cmd, *data); + + return 0; +} + static int s6e63m0_dsi_dcs_write(struct device *dev, const u8 *data, size_t len) { struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev); @@ -90,7 +106,8 @@ static int s6e63m0_dsi_probe(struct mipi_dsi_device *dsi) MIPI_DSI_MODE_EOT_PACKET | MIPI_DSI_MODE_VIDEO_BURST; - ret = s6e63m0_probe(dev, s6e63m0_dsi_dcs_write, true); + ret = s6e63m0_probe(dev, s6e63m0_dsi_dcs_read, s6e63m0_dsi_dcs_write, + true); if (ret) return ret; |