diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2022-12-31 13:57:49 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2023-02-12 15:32:48 +0100 |
| commit | 4de0224c6fbebfa4018a640ec34e5c160dffb959 (patch) | |
| tree | 2ed63d35365d7c46b1be5c50bed9b1554999f816 /drivers/watchdog | |
| parent | 5eb3fb95eab28a6dbcd2eab6898e03af6658ee0e (diff) | |
| download | linux-next-4de0224c6fbebfa4018a640ec34e5c160dffb959.tar.gz | |
watchdog: of_xilinx_wdt: Use devm_clk_get_enabled() helper
The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code and avoids the need of a dedicated function used
with devm_add_action_or_reset().
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/2b041dc8230a4ed255051bb2d323da8a51a8d0be.1672491445.git.christophe.jaillet@wanadoo.fr
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/of_xilinx_wdt.c | 16 |
1 files changed, 1 insertions, 15 deletions
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c index 3318544366b8..2a079ca04aa3 100644 --- a/drivers/watchdog/of_xilinx_wdt.c +++ b/drivers/watchdog/of_xilinx_wdt.c @@ -154,11 +154,6 @@ static u32 xwdt_selftest(struct xwdt_device *xdev) return XWT_TIMER_FAILED; } -static void xwdt_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int xwdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -193,7 +188,7 @@ static int xwdt_probe(struct platform_device *pdev) watchdog_set_nowayout(xilinx_wdt_wdd, enable_once); - xdev->clk = devm_clk_get(dev, NULL); + xdev->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(xdev->clk)) { if (PTR_ERR(xdev->clk) != -ENOENT) return PTR_ERR(xdev->clk); @@ -211,15 +206,6 @@ static int xwdt_probe(struct platform_device *pdev) "The watchdog clock freq cannot be obtained\n"); } else { pfreq = clk_get_rate(xdev->clk); - rc = clk_prepare_enable(xdev->clk); - if (rc) { - dev_err(dev, "unable to enable clock\n"); - return rc; - } - rc = devm_add_action_or_reset(dev, xwdt_clk_disable_unprepare, - xdev->clk); - if (rc) - return rc; } /* |