Now that we have a generic DT property "timeout-sec" handling, the driver specific implementation can be dropped.
This patch also changes the timeout restriction to the min and max values (clipping). Before this patch, the value provided via "timeout-sec" was used if the parameter was too high or low. Now the driver specific min and max values are used instead.
Signed-off-by: Stefan Roese sr@denx.de Cc: Michal Simek michal.simek@xilinx.com Reviewed-by: Michal Simek michal.simek@xilinx.com Tested-by: Michal Simek michal.simek@xilinx.com (on zcu100) --- v5: - No Change
v4: - No Change
v3: - Divide timeout in _start() by 1000 to get value in seconds
v2: - New patch
drivers/watchdog/cdns_wdt.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/watchdog/cdns_wdt.c b/drivers/watchdog/cdns_wdt.c index fc85fbcec2..6a608b6371 100644 --- a/drivers/watchdog/cdns_wdt.c +++ b/drivers/watchdog/cdns_wdt.c @@ -10,6 +10,7 @@ #include <dm.h> #include <wdt.h> #include <clk.h> +#include <div64.h> #include <linux/io.h>
DECLARE_GLOBAL_DATA_PTR; @@ -23,7 +24,6 @@ struct cdns_regs {
struct cdns_wdt_priv { bool rst; - u32 timeout; struct cdns_regs *regs; };
@@ -142,10 +142,10 @@ static int cdns_wdt_start(struct udevice *dev, u64 timeout, ulong flags) return -1; }
- if ((timeout < CDNS_WDT_MIN_TIMEOUT) || - (timeout > CDNS_WDT_MAX_TIMEOUT)) { - timeout = priv->timeout; - } + /* Calculate timeout in seconds and restrict to min and max value */ + do_div(timeout, 1000); + timeout = max_t(u64, timeout, CDNS_WDT_MIN_TIMEOUT); + timeout = min_t(u64, timeout, CDNS_WDT_MAX_TIMEOUT);
debug("%s: CLK_FREQ %ld, timeout %lld\n", __func__, clk_f, timeout);
@@ -235,12 +235,9 @@ static int cdns_wdt_ofdata_to_platdata(struct udevice *dev) if (IS_ERR(priv->regs)) return PTR_ERR(priv->regs);
- priv->timeout = dev_read_u32_default(dev, "timeout-sec", - CDNS_WDT_DEFAULT_TIMEOUT); - priv->rst = dev_read_bool(dev, "reset-on-timeout");
- debug("%s: timeout %d, reset %d\n", __func__, priv->timeout, priv->rst); + debug("%s: reset %d\n", __func__, priv->rst);
return 0; }