diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2021-11-12 14:46:32 -0800 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2021-12-28 13:59:07 +0100 |
| commit | d6b9c679bbac1d1d2fcac64391b4cadb91763a6f (patch) | |
| tree | 3f2ba173a2ff29947e2fbfa330f3b9d949b5b4fa /drivers/watchdog | |
| parent | 17fffe91ba36d11c7b17be154ecc7c1ed31527eb (diff) | |
watchdog: bcm7038_wdt: Support platform data configuration
The BCM7038 watchdog driver needs to be able to obtain a specific clock
name on BCM63xx platforms which is the "periph" clock ticking at 50MHz.
make it possible to specify the clock name to obtain via platform data.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211112224636.395101-4-f.fainelli@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/bcm7038_wdt.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c index acaaa0005d5b..506cd7ef9c77 100644 --- a/drivers/watchdog/bcm7038_wdt.c +++ b/drivers/watchdog/bcm7038_wdt.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> +#include <linux/platform_data/bcm7038_wdt.h> #include <linux/pm.h> #include <linux/watchdog.h> @@ -133,8 +134,10 @@ static void bcm7038_clk_disable_unprepare(void *data) static int bcm7038_wdt_probe(struct platform_device *pdev) { + struct bcm7038_wdt_platform_data *pdata = pdev->dev.platform_data; struct device *dev = &pdev->dev; struct bcm7038_watchdog *wdt; + const char *clk_name = NULL; int err; wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL); @@ -147,7 +150,10 @@ static int bcm7038_wdt_probe(struct platform_device *pdev) if (IS_ERR(wdt->base)) return PTR_ERR(wdt->base); - wdt->clk = devm_clk_get(dev, NULL); + if (pdata && pdata->clk_name) + clk_name = pdata->clk_name; + + wdt->clk = devm_clk_get(dev, clk_name); /* If unable to get clock, use default frequency */ if (!IS_ERR(wdt->clk)) { err = clk_prepare_enable(wdt->clk); |