On Device Tree boot the VDDS_DSI regulator is not linked to
the DPI device so omapfb driver probing fails with:
[ 3.186035] OMAPFB: omapfb_probe
[ 3.190704] omapdss DPI error: can't get VDDS_DSI regulator
[ 3.196594] omapfb omapfb: failed to connect default display
[ 3.202667] omapfb omapfb: failed to init overlay connections
[ 3.208892] OMAPFB: free_resources
[ 3.212493] OMAPFB: free all fbmem
[ 3.216735] omapfb omapfb: failed to setup omapfb
As a workaround try to use the VPLL2 regulator from twl4030 in
dpi_init_regulator() if getting the VDDS_DSI regulator fails.
Signed-off-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx>
---
drivers/video/omap2/dss/dpi.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index bd48cde..e328f0b 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -550,6 +550,11 @@ static int dpi_init_regulator(void)
return 0;
vdds_dsi = devm_regulator_get(&dpi.pdev->dev, "vdds_dsi");
+
+ /* DT HACK: try VPLL2 to make omapdss work for OMAP3 IGEPv2 */
+ if (IS_ERR(vdds_dsi))
+ vdds_dsi = devm_regulator_get(&dpi.pdev->dev, "VPLL2");
+
if (IS_ERR(vdds_dsi)) {
DSSERR("can't get VDDS_DSI regulator\n");
return PTR_ERR(vdds_dsi);
--
1.8.4.2
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
