Set the DSI vdd regulator voltage to the required 1.8V.
This is required for the case when the regulator in the DT data defines
a range of allowed voltages. In this case it's required to set the
voltage, as otherwise enabling the voltage fails.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/video/fbdev/omap2/dss/dsi.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/video/fbdev/omap2/dss/dsi.c b/drivers/video/fbdev/omap2/dss/dsi.c
index 8be9b04d8849..57f120896b43 100644
--- a/drivers/video/fbdev/omap2/dss/dsi.c
+++ b/drivers/video/fbdev/omap2/dss/dsi.c
@@ -1161,6 +1161,7 @@ static int dsi_regulator_init(struct platform_device *dsidev)
{
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
struct regulator *vdds_dsi;
+ int r;
if (dsi->vdds_dsi_reg != NULL)
return 0;
@@ -1173,6 +1174,15 @@ static int dsi_regulator_init(struct platform_device *dsidev)
return PTR_ERR(vdds_dsi);
}
+ if (regulator_can_change_voltage(vdds_dsi)) {
+ r = regulator_set_voltage(vdds_dsi, 1800000, 1800000);
+ if (r) {
+ devm_regulator_put(vdds_dsi);
+ DSSERR("can't set the DSI regulator voltage\n");
+ return r;
+ }
+ }
+
dsi->vdds_dsi_reg = vdds_dsi;
return 0;
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
