[v5,02/13] pwm: mediatek: droping the check for of_device_get_match_data
diff mbox series

Message ID 1566457123-20791-3-git-send-email-sam.shih@mediatek.com
State New
Headers show
Series
  • Add mt7629 and fix mt7628 pwm
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Commit Message

Sam Shih Aug. 22, 2019, 6:58 a.m. UTC
This patch drop the check for of_device_get_match_data.
Due to the only way call driver probe is compatible match.
The .data pointer which point to the SoC specify data is
directly set by driver, and it should not be NULL in our case.
We can safety remove the check for of_device_get_match_data.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Sam Shih <sam.shih@mediatek.com>
---
Used:
https://patchwork.kernel.org/patch/11096905/
Changes since v4:
Follow reviewer's comments:
Move the changes of droping the check for of_device_get_match_data
returning non-NULL to this patch

Change-Id: Ibcba903d5b26159051adfc5ef2e601ee2f78729b
---
 drivers/pwm/pwm-mediatek.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

Comments

Uwe Kleine-König Aug. 24, 2019, 12:29 a.m. UTC | #1
On Thu, Aug 22, 2019 at 02:58:32PM +0800, Sam Shih wrote:
> This patch drop the check for of_device_get_match_data.
> Due to the only way call driver probe is compatible match.
> The .data pointer which point to the SoC specify data is
> directly set by driver, and it should not be NULL in our case.
> We can safety remove the check for of_device_get_match_data.
> 
> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
> Signed-off-by: Sam Shih <sam.shih@mediatek.com>

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Thanks
Uwe

Patch
diff mbox series

diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c
index e214f4f57107..ebd62629e3fe 100644
--- a/drivers/pwm/pwm-mediatek.c
+++ b/drivers/pwm/pwm-mediatek.c
@@ -226,7 +226,6 @@  static const struct pwm_ops mtk_pwm_ops = {
 
 static int mtk_pwm_probe(struct platform_device *pdev)
 {
-	const struct mtk_pwm_platform_data *data;
 	struct device_node *np = pdev->dev.of_node;
 	struct mtk_pwm_chip *pc;
 	struct resource *res;
@@ -237,10 +236,7 @@  static int mtk_pwm_probe(struct platform_device *pdev)
 	if (!pc)
 		return -ENOMEM;
 
-	data = of_device_get_match_data(&pdev->dev);
-	if (data == NULL)
-		return -EINVAL;
-	pc->soc = data;
+	pc->soc = of_device_get_match_data(&pdev->dev);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	pc->regs = devm_ioremap_resource(&pdev->dev, res);