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authorAlexandre Belloni <alexandre.belloni@free-electrons.com>2014-08-27 18:06:51 +0200
committerNicolas Ferre <nicolas.ferre@atmel.com>2014-09-01 18:37:51 +0200
commitc8260db557389c1fb46eeafb54414b03d9f19e49 (patch)
tree7fa322efeb42840e096350b8aafc233109ff8de2 /arch/arm/mach-at91
parentf55df0d654e10ad49e0e7edaeef02fa00e084d94 (diff)
downloadlinux-linaro-stable-c8260db557389c1fb46eeafb54414b03d9f19e49.tar.gz
ARM: at91: fix ramc standby function registration
After the for_each_matching_node loop, we end up with a null value for np. Then, of_match_node() is not matching anything and we can't register the standby function and "ramc no standby function available" is printed. Fix that by selecting the first available standby function. For now, at91_pm_set_standby doesn't support multiple different standby functions and no existing SoCs have different RAM controllers. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r--arch/arm/mach-at91/setup.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index 28ae63b8eb16..d2cade21ebd7 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -343,25 +343,28 @@ static void at91_dt_ramc(void)
struct device_node *np;
const struct of_device_id *of_id;
int idx = 0;
+ const void *standby = NULL;
- for_each_matching_node(np, ramc_ids) {
+ for_each_matching_node_and_match(np, ramc_ids, &of_id) {
at91_ramc_base[idx] = of_iomap(np, 0);
if (!at91_ramc_base[idx])
panic(pr_fmt("unable to map ramc[%d] cpu registers\n"), idx);
+ if (!standby)
+ standby = of_id->data;
+
idx++;
}
if (!idx)
panic(pr_fmt("unable to find compatible ram controller node in dtb\n"));
- of_id = of_match_node(ramc_ids, np);
- if (!of_id) {
+ if (!standby) {
pr_warn("ramc no standby function available\n");
return;
}
- at91_pm_set_standby(of_id->data);
+ at91_pm_set_standby(standby);
}
void __init at91rm9200_dt_initialize(void)