[PATCH 1/3] watchdog: qcom-wdt: add option to skip pretimeout

Ansuel Smith
2020-02-04T15:21:31Z

Some platform like ipq806x doesn't support pretimeout.
As the driver check if there are available interrupts and ipq806x
use msm-timer that require interrupts, the watchdog fail to probe
as request_irq tries to use a ppi interrupt. Add an option to skip
pretimeout setup and use the normal watchdog probe.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
drivers/watchdog/qcom-wdt.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c
index a494543d3ae1..e689e97e883e 100644
--- a/drivers/watchdog/qcom-wdt.c
+++ b/drivers/watchdog/qcom-wdt.c
@@ -189,6 +189,7 @@ static int qcom_wdt_probe(struct platform_device *pdev)
u32 percpu_offset;
int irq, ret;
struct clk *clk;
+ bool nopretimeout;

regs = of_device_get_match_data(dev);
if (!regs) {
@@ -204,6 +205,8 @@ static int qcom_wdt_probe(struct platform_device *pdev)
if (!res)
return -ENOMEM;

+ nopretimeout = of_property_read_bool(np, "no-pretimeout");
+
/* We use CPU0's DGT for the watchdog */
if (of_property_read_u32(np, "cpu-offset", &percpu_offset))
percpu_offset = 0;
@@ -247,7 +250,7 @@ static int qcom_wdt_probe(struct platform_device *pdev)

/* check if there is pretimeout support */
irq = platform_get_irq(pdev, 0);
- if (irq > 0) {
+ if (!nopretimeout && irq > 0) {
ret = devm_request_irq(dev, irq, qcom_wdt_isr,
IRQF_TRIGGER_RISING,
"wdt_bark", &wdt->wdd);
--
2.24.0