linux-kernel - [PATCH v5 2/2] watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by

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Message-ID: <20240219204238.356942-3-peter.griffin@linaro.org>
Date: Mon, 19 Feb 2024 20:42:38 +0000
From: Peter Griffin <peter.griffin@...aro.org>
To: arnd@...db.de,
	krzysztof.kozlowski@...aro.org,
	linux@...ck-us.net,
	wim@...ux-watchdog.org,
	alim.akhtar@...sung.com,
	jaewon02.kim@...sung.com,
	semen.protsenko@...aro.org
Cc: alexey.klimov@...aro.org,
	kernel-team@...roid.com,
	peter.griffin@...aro.org,
	tudor.ambarus@...aro.org,
	andre.draszik@...aro.org,
	saravanak@...gle.com,
	willmcvicker@...gle.com,
	linux-fsd@...la.com,
	linux-watchdog@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org
Subject: [PATCH v5 2/2] watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU regs

Obtain the PMU regmap using the new API added to exynos-pmu driver rather
than syscon_regmap_lookup_by_phandle(). As this driver no longer depends
on mfd syscon remove that header and Kconfig dependency.

Tested-by: Alexey Klimov <alexey.klimov@...aro.org>
Tested-by: Sam Protsenko <semen.protsenko@...aro.org>
Acked-by: Guenter Roeck <linux@...ck-us.net>
Reviewed-by: Sam Protsenko <semen.protsenko@...aro.org>
Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
 drivers/watchdog/Kconfig       | 1 -
 drivers/watchdog/s3c2410_wdt.c | 8 ++++----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 7d22051b15a2..d78fe7137799 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -512,7 +512,6 @@ config S3C2410_WATCHDOG
 	tristate "S3C6410/S5Pv210/Exynos Watchdog"
 	depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 	select WATCHDOG_CORE
-	select MFD_SYSCON if ARCH_EXYNOS
 	help
 	  Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos
 	  SoCs. This will reboot the system when the timer expires with
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 349d30462c8c..686cf544d0ae 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -24,9 +24,9 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/of.h>
-#include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 #include <linux/delay.h>
+#include <linux/soc/samsung/exynos-pmu.h>
 
 #define S3C2410_WTCON		0x00
 #define S3C2410_WTDAT		0x04
@@ -699,11 +699,11 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
 		return ret;
 
 	if (wdt->drv_data->quirks & QUIRKS_HAVE_PMUREG) {
-		wdt->pmureg = syscon_regmap_lookup_by_phandle(dev->of_node,
-						"samsung,syscon-phandle");
+		wdt->pmureg = exynos_get_pmu_regmap_by_phandle(dev->of_node,
+						 "samsung,syscon-phandle");
 		if (IS_ERR(wdt->pmureg))
 			return dev_err_probe(dev, PTR_ERR(wdt->pmureg),
-					     "syscon regmap lookup failed.\n");
+					     "PMU regmap lookup failed.\n");
 	}
 
 	wdt_irq = platform_get_irq(pdev, 0);
-- 
2.44.0.rc0.258.g7320e95886-goog