76d079204d
Changelogs: * https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.12 * https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.13 * https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.14 Build tested on brcm63xx and ipq806x, runtested on brcm63xx. Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 45711
68 lines
2.0 KiB
Diff
68 lines
2.0 KiB
Diff
From fded70251b1b58f68de1d3757ece9965f0b75452 Mon Sep 17 00:00:00 2001
|
|
From: Mathieu Olivari <mathieu@codeaurora.org>
|
|
Date: Thu, 19 Feb 2015 20:19:30 -0800
|
|
Subject: [PATCH 1/3] watchdog: qcom: use timer devicetree binding
|
|
|
|
MSM watchdog configuration happens in the same register block as the
|
|
timer, so we'll use the same binding as the existing timer.
|
|
|
|
The qcom-wdt will now be probed when devicetree has an entry compatible
|
|
with "qcom,kpss-timer" or "qcom-scss-timer".
|
|
|
|
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
|
|
---
|
|
drivers/watchdog/qcom-wdt.c | 21 +++++++++++++++------
|
|
1 file changed, 15 insertions(+), 6 deletions(-)
|
|
|
|
--- a/drivers/watchdog/qcom-wdt.c
|
|
+++ b/drivers/watchdog/qcom-wdt.c
|
|
@@ -20,9 +20,9 @@
|
|
#include <linux/reboot.h>
|
|
#include <linux/watchdog.h>
|
|
|
|
-#define WDT_RST 0x0
|
|
-#define WDT_EN 0x8
|
|
-#define WDT_BITE_TIME 0x24
|
|
+#define WDT_RST 0x38
|
|
+#define WDT_EN 0x40
|
|
+#define WDT_BITE_TIME 0x5C
|
|
|
|
struct qcom_wdt {
|
|
struct watchdog_device wdd;
|
|
@@ -117,6 +117,8 @@ static int qcom_wdt_probe(struct platfor
|
|
{
|
|
struct qcom_wdt *wdt;
|
|
struct resource *res;
|
|
+ struct device_node *np = pdev->dev.of_node;
|
|
+ u32 percpu_offset;
|
|
int ret;
|
|
|
|
wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
|
|
@@ -124,6 +126,14 @@ static int qcom_wdt_probe(struct platfor
|
|
return -ENOMEM;
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
+
|
|
+ /* We use CPU0's DGT for the watchdog */
|
|
+ if (of_property_read_u32(np, "cpu-offset", &percpu_offset))
|
|
+ percpu_offset = 0;
|
|
+
|
|
+ res->start += percpu_offset;
|
|
+ res->end += percpu_offset;
|
|
+
|
|
wdt->base = devm_ioremap_resource(&pdev->dev, res);
|
|
if (IS_ERR(wdt->base))
|
|
return PTR_ERR(wdt->base);
|
|
@@ -203,9 +213,8 @@ static int qcom_wdt_remove(struct platfo
|
|
}
|
|
|
|
static const struct of_device_id qcom_wdt_of_table[] = {
|
|
- { .compatible = "qcom,kpss-wdt-msm8960", },
|
|
- { .compatible = "qcom,kpss-wdt-apq8064", },
|
|
- { .compatible = "qcom,kpss-wdt-ipq8064", },
|
|
+ { .compatible = "qcom,kpss-timer" },
|
|
+ { .compatible = "qcom,scss-timer" },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, qcom_wdt_of_table);
|