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Message-ID: <20170302124532.GA29046@amd>
Date:   Thu, 2 Mar 2017 13:45:32 +0100
From:   Pavel Machek <pavel@....cz>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Sakari Ailus <sakari.ailus@....fi>, mchehab@...nel.org,
        kernel list <linux-kernel@...r.kernel.org>,
        ivo.g.dimitrov.75@...il.com, sre@...nel.org, pali.rohar@...il.com,
        linux-media@...r.kernel.org
Subject: [PATCH] omap3isp: wait for regulators to come up


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@....cz>

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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