From: Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: Marek Vasut <marex-ynQEQJNshbs@public.gmane.org>,
Fabio Estevam
<fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
Mike Turquette
<mturquette-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>,
Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>
Subject: [PATCH] reset: allow drivers to request probe deferral
Date: Thu, 18 Jul 2013 13:57:33 +0200 [thread overview]
Message-ID: <1374148653-14009-1-git-send-email-p.zabel@pengutronix.de> (raw)
If the requested reset controller is not yet available, have reset_control_get
and device_reset return -EPROBE_DEFER so the driver can decide to request
probe deferral.
Signed-off-by: Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
---
drivers/reset/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index d1b6089..b3d99a1 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -167,7 +167,7 @@ struct reset_control *reset_control_get(struct device *dev, const char *id)
if (!rcdev) {
mutex_unlock(&reset_controller_list_mutex);
- return ERR_PTR(-ENODEV);
+ return ERR_PTR(-EPROBE_DEFER);
}
rstc_id = rcdev->of_xlate(rcdev, &args);
--
1.8.3.2
next reply other threads:[~2013-07-18 11:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-18 11:57 Philipp Zabel [this message]
[not found] ` <1374148653-14009-1-git-send-email-p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-07-18 12:04 ` [PATCH] reset: allow drivers to request probe deferral Shawn Guo
2013-07-18 17:06 ` Stephen Warren
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