linux-kernel - Re: [GIT PULL] gpio fixes for v3.6-rc1

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Message-Id: <201208131436.11122.arnd@arndb.de>
Date:	Mon, 13 Aug 2012 14:36:10 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Shawn Guo <shawn.guo@...aro.org>,
	Daniel Mack <zonque@...il.com>, Axel Lin <axel.lin@...il.com>,
	Alan Cox <alan@...ux.intel.com>,
	Sean Paul <seanpaul@...omium.org>,
	Julia Lawall <Julia.Lawall@...6.fr>
Subject: Re: [GIT PULL] gpio fixes for v3.6-rc1

On Friday 10 August 2012, Linus Walleij wrote:
> Daniel Mack (1):
>       GPIO: gpio-pxa: fix devicetree functions
> 

Unfortunately, this one caused a build regression, see the fix below.
I also wonder why pxa_irq_domain_ops isn't static.

	Arnd

8<----
GPIO: gpio-pxa: fix building without CONFIG_OF

Patch 7212157267 "GPIO: gpio-pxa: fix devicetree functions" added an
"xlate" function pointer to the irq_domain_ops, but this function
is nor declared or defined anywhere when CONFIG_OF is disabled, causing
the build error:

drivers/gpio/gpio-pxa.c:532:11: error: 'irq_domain_xlate_twocell' undeclared here (not in a function)

Extending the DT-only code section to cover the irq_domain_ops
and the pxa_gpio_dt_ids solves this problem and makes it clearer
which code is actually used without DT.

Signed-off-by: Arnd Bergmann <arnd@...db.de>

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 793767b0..9cac88a 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -512,6 +512,7 @@ static int pxa_gpio_nums(void)
 	return count;
 }
 
+#ifdef CONFIG_OF
 static struct of_device_id pxa_gpio_dt_ids[] = {
 	{ .compatible = "mrvl,pxa-gpio" },
 	{ .compatible = "mrvl,mmp-gpio", .data = (void *)MMP_GPIO },
@@ -532,7 +533,6 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
 	.xlate	= irq_domain_xlate_twocell,
 };
 
-#ifdef CONFIG_OF
 static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev)
 {
 	int ret, nr_banks, nr_gpios, irq_base;
@@ -679,7 +679,7 @@ static struct platform_driver pxa_gpio_driver = {
 	.probe		= pxa_gpio_probe,
 	.driver		= {
 		.name	= "pxa-gpio",
-		.of_match_table = pxa_gpio_dt_ids,
+		.of_match_table = of_match_ptr(pxa_gpio_dt_ids),
 	},
 };
 
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