[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1402914383-20471-2-git-send-email-k.chander@samsung.com>
Date: Mon, 16 Jun 2014 15:56:18 +0530
From: Chander Kashyap <k.chander@...sung.com>
To: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-samsung-soc@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org, daniel.lezcano@...aro.org,
lorenzo.pieralisi@....com, rjw@...ysocki.net,
kgene.kim@...sung.com, tomasz.figa@...il.com,
Chander Kashyap <chander.kashyap@...aro.org>,
Chander Kashyap <k.chander@...sung.com>
Subject: [Patch v7 1/6] driver: cpuidle-big-little: add of_device_id structure
From: Chander Kashyap <chander.kashyap@...aro.org>
This driver will be used by many big.Little Soc's. As of now it does
string matching of hardcoded compatible string to init the driver. This
comparison list will keep on growing with addition of new SoC's.
Hence add of_device_id structure to collect the compatible strings of
SoC's using this driver.
Signed-off-by: Chander Kashyap <chander.kashyap@...aro.org>
Signed-off-by: Chander Kashyap <k.chander@...sung.com>
Reviewed-by: Tomasz Figa <t.figa@...sung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c
index b45fc62..4cd02bd 100644
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -163,14 +163,23 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int cpu_id)
return 0;
}
+static const struct of_device_id compatible_machine_match[] = {
+ { .compatible = "arm,vexpress,v2p-ca15_a7" },
+ {},
+};
+
static int __init bl_idle_init(void)
{
int ret;
+ struct device_node *root = of_find_node_by_path("/");
+
+ if (!root)
+ return -ENODEV;
/*
* Initialize the driver just for a compliant set of machines
*/
- if (!of_machine_is_compatible("arm,vexpress,v2p-ca15_a7"))
+ if (!of_match_node(compatible_machine_match, root))
return -ENODEV;
/*
* For now the differentiation between little and big cores
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists