[PATCH] omap3isp: wait for regulators to come up

From: Pavel Machek
Date: Thu Mar 02 2017 - 07:57:14 EST



If regulator returns -EPROBE_DEFER, we need to return it too, so that
omap3isp will be re-probed when regulator is ready.

Signed-off-by: Pavel Machek <pavel@xxxxxx>

diff --git a/drivers/media/platform/omap3isp/ispccp2.c b/drivers/media/platform/omap3isp/ispccp2.c
index ca09523..b6e055e 100644
--- a/drivers/media/platform/omap3isp/ispccp2.c
+++ b/drivers/media/platform/omap3isp/ispccp2.c
@@ -1137,10 +1159,12 @@ int omap3isp_ccp2_init(struct isp_device *isp)
if (isp->revision == ISP_REVISION_2_0) {
ccp2->vdds_csib = devm_regulator_get(isp->dev, "vdds_csib");
if (IS_ERR(ccp2->vdds_csib)) {
+ if (PTR_ERR(ccp2->vdds_csib) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
dev_dbg(isp->dev,
"Could not get regulator vdds_csib\n");
ccp2->vdds_csib = NULL;
}
} else if (isp->revision == ISP_REVISION_15_0) {
ccp2->phy = &isp->isp_csiphy1;
}

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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