linux-kernel - [PATCH] spi: spi-pl022: Adjust probe() to of_get_named_gpio() returning -EPROBE

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Date:	Mon, 18 Jun 2012 11:20:19 +0200
From:	Roland Stigge <stigge@...com.de>
To:	cjb@...top.org, grant.likely@...retlab.ca, rob.herring@...xeda.com,
	rmk+kernel@....linux.org.uk, ulf.hansson@...ricsson.com,
	linus.walleij@...aro.org, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org, aletes.xgr@...il.com,
	linux-arm-kernel@...ts.infradead.org,
	spi-devel-general@...ts.sourceforge.net
Cc:	Roland Stigge <stigge@...com.de>
Subject: [PATCH] spi: spi-pl022: Adjust probe() to of_get_named_gpio() returning -EPROBE_DEFER

The patch to gpiolib-of.c providing -EPROBE_DEFER as a hint to defer
of_get_named_gpio*() to a later probe() breaks spi-pl022.c.

This patch adjusts to this change, using -EPROBE_DEFER as indication to defer.

Signed-off-by: Roland Stigge <stigge@...com.de>

---
Applies to 3.5-rc3

Should this patch be joined with gpiolib-of's patch to of_get_named_gpio()? Or
should they just be issued as a series?

 drivers/spi/spi-pl022.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.orig/drivers/spi/spi-pl022.c
+++ linux-2.6/drivers/spi/spi-pl022.c
@@ -2075,7 +2075,7 @@ pl022_probe(struct amba_device *adev, co
 	for (i = 0; i < num_cs; i++) {
 		int cs_gpio = of_get_named_gpio(np, "cs-gpios", i);
 
-		if (cs_gpio == -ENODEV) {
+		if (cs_gpio == -EPROBE_DEFER) {
 			status = -EPROBE_DEFER;
 			goto err_no_gpio;
 		}
--
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