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 <[email protected]> --- 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
