linux-kernel - [PATCH v2] pwm: rockchip: Use of_clk_get_parent

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Date:   Mon, 27 May 2019 21:55:09 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Heiko Stuebner <heiko@...ech.de>
Subject: [PATCH v2] pwm: rockchip: Use of_clk_get_parent_count()

Use of_clk_get_parent_count() instead of open coding.

Cc: Thierry Reding <thierry.reding@...il.com>
Cc: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
v2:
- add include <linux/of_clk.h>
 drivers/pwm/pwm-rockchip.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index 4d99d468df09..d8f23daca290 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -13,6 +13,7 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_clk.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
@@ -329,8 +330,8 @@ static int rockchip_pwm_probe(struct platform_device *pdev)
 		}
 	}
 
-	count = of_count_phandle_with_args(pdev->dev.of_node,
-					   "clocks", "#clock-cells");
+	count = of_clk_get_parent_count(pdev->dev.of_node);
+
 	if (count == 2)
 		pc->pclk = devm_clk_get(&pdev->dev, "pclk");
 	else
-- 
2.20.1