diff options
| author | Mathieu Olivari <mathieu@codeaurora.org> | 2015-02-20 18:19:34 -0800 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2015-04-22 15:27:47 +0200 |
| commit | 0dfd582e026af8a37917164aaba7227fa812e5c2 (patch) | |
| tree | 470ac7aff224beb72424204f63e6e1fc603a982a | |
| parent | e1dbde29609a4f829589f0e48361470327ae3f62 (diff) | |
| download | linux-0dfd582e026af8a37917164aaba7227fa812e5c2.tar.gz | |
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> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
| -rw-r--r-- | drivers/watchdog/qcom-wdt.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c index aa85618c4d03..aa03ca8f2d9b 100644 --- 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 platform_device *pdev) { 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 platform_device *pdev) 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 platform_device *pdev) } 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); |