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authorArnd Bergmann <arnd@arndb.de>2022-09-29 16:43:53 +0300
committerArnd Bergmann <arnd@arndb.de>2023-01-16 11:26:05 +0300
commit1ea35b355722675b3b654475a37898742731d016 (patch)
treeaaf44b73843dd4159e5085cf54fcdc72249ac535 /drivers/watchdog/s3c2410_wdt.c
parent61b7f8920b176e3cb86c3b5e7c866261720a7917 (diff)
downloadlinux-1ea35b355722675b3b654475a37898742731d016.tar.xz
ARM: s3c: remove s3c24xx specific hacks
A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or similar symbols that are no longer available with the platform gone, though the drivers themselves are still used on newer platforms, so remove these hacks. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/watchdog/s3c2410_wdt.c')
-rw-r--r--drivers/watchdog/s3c2410_wdt.c84
1 files changed, 3 insertions, 81 deletions
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index d3fc8ed886ff..200ba236a72e 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -562,73 +562,6 @@ static irqreturn_t s3c2410wdt_irq(int irqno, void *param)
return IRQ_HANDLED;
}
-#ifdef CONFIG_ARM_S3C24XX_CPUFREQ
-
-static int s3c2410wdt_cpufreq_transition(struct notifier_block *nb,
- unsigned long val, void *data)
-{
- int ret;
- struct s3c2410_wdt *wdt = freq_to_wdt(nb);
-
- if (!s3c2410wdt_is_running(wdt))
- goto done;
-
- if (val == CPUFREQ_PRECHANGE) {
- /* To ensure that over the change we don't cause the
- * watchdog to trigger, we perform an keep-alive if
- * the watchdog is running.
- */
-
- s3c2410wdt_keepalive(&wdt->wdt_device);
- } else if (val == CPUFREQ_POSTCHANGE) {
- s3c2410wdt_stop(&wdt->wdt_device);
-
- ret = s3c2410wdt_set_heartbeat(&wdt->wdt_device,
- wdt->wdt_device.timeout);
-
- if (ret >= 0)
- s3c2410wdt_start(&wdt->wdt_device);
- else
- goto err;
- }
-
-done:
- return 0;
-
- err:
- dev_err(wdt->dev, "cannot set new value for timeout %d\n",
- wdt->wdt_device.timeout);
- return ret;
-}
-
-static inline int s3c2410wdt_cpufreq_register(struct s3c2410_wdt *wdt)
-{
- wdt->freq_transition.notifier_call = s3c2410wdt_cpufreq_transition;
-
- return cpufreq_register_notifier(&wdt->freq_transition,
- CPUFREQ_TRANSITION_NOTIFIER);
-}
-
-static inline void s3c2410wdt_cpufreq_deregister(struct s3c2410_wdt *wdt)
-{
- wdt->freq_transition.notifier_call = s3c2410wdt_cpufreq_transition;
-
- cpufreq_unregister_notifier(&wdt->freq_transition,
- CPUFREQ_TRANSITION_NOTIFIER);
-}
-
-#else
-
-static inline int s3c2410wdt_cpufreq_register(struct s3c2410_wdt *wdt)
-{
- return 0;
-}
-
-static inline void s3c2410wdt_cpufreq_deregister(struct s3c2410_wdt *wdt)
-{
-}
-#endif
-
static inline unsigned int s3c2410wdt_get_bootstatus(struct s3c2410_wdt *wdt)
{
unsigned int rst_stat;
@@ -761,12 +694,6 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
wdt->wdt_device.min_timeout = 1;
wdt->wdt_device.max_timeout = s3c2410wdt_max_timeout(wdt);
- ret = s3c2410wdt_cpufreq_register(wdt);
- if (ret < 0) {
- dev_err(dev, "failed to register cpufreq\n");
- goto err_src_clk;
- }
-
watchdog_set_drvdata(&wdt->wdt_device, wdt);
/* see if we can actually set the requested timer margin, and if
@@ -783,7 +710,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
S3C2410_WATCHDOG_DEFAULT_TIME);
} else {
dev_err(dev, "failed to use default timeout\n");
- goto err_cpufreq;
+ goto err_src_clk;
}
}
@@ -791,7 +718,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
pdev->name, pdev);
if (ret != 0) {
dev_err(dev, "failed to install irq (%d)\n", ret);
- goto err_cpufreq;
+ goto err_src_clk;
}
watchdog_set_nowayout(&wdt->wdt_device, nowayout);
@@ -817,7 +744,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
ret = watchdog_register_device(&wdt->wdt_device);
if (ret)
- goto err_cpufreq;
+ goto err_src_clk;
ret = s3c2410wdt_enable(wdt, true);
if (ret < 0)
@@ -839,9 +766,6 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
err_unregister:
watchdog_unregister_device(&wdt->wdt_device);
- err_cpufreq:
- s3c2410wdt_cpufreq_deregister(wdt);
-
err_src_clk:
clk_disable_unprepare(wdt->src_clk);
@@ -862,8 +786,6 @@ static int s3c2410wdt_remove(struct platform_device *dev)
watchdog_unregister_device(&wdt->wdt_device);
- s3c2410wdt_cpufreq_deregister(wdt);
-
clk_disable_unprepare(wdt->src_clk);
clk_disable_unprepare(wdt->bus_clk);