diff mbox series

[-next,v3,12/12] mtd: rawnand: orion: Use helper function devm_clk_get_optional_enabled()

Message ID 20230821031737.1973183-13-lizetao1@huawei.com
State Accepted
Headers show
Series mtd: Use devm_clk_get_*() helper function to simplify the drivers. | expand

Commit Message

Li Zetao Aug. 21, 2023, 3:17 a.m. UTC
Since commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared
and enabled clocks"), devm_clk_get_optional() and clk_prepare_enable() can
now be replaced by devm_clk_get_optional_enabled() when driver enables
(and possibly prepares) the clocks for the whole lifetime of the device.
Moreover, it is no longer necessary to unprepare and disable the clocks
explicitly, so drop the label "no_dev".

Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Li Zetao <lizetao1@huawei.com>
---
v2 -> v3: Modify the syntax error in the commit message.
v2: https://lore.kernel.org/all/20230818074642.308166-13-lizetao1@huawei.com/
v1 -> v2: This is a new patch.

 drivers/mtd/nand/raw/orion_nand.c | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)

Comments

Miquel Raynal Aug. 21, 2023, 7:57 a.m. UTC | #1
On Mon, 2023-08-21 at 03:17:37 UTC, Li Zetao wrote:
> Since commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared
> and enabled clocks"), devm_clk_get_optional() and clk_prepare_enable() can
> now be replaced by devm_clk_get_optional_enabled() when driver enables
> (and possibly prepares) the clocks for the whole lifetime of the device.
> Moreover, it is no longer necessary to unprepare and disable the clocks
> explicitly, so drop the label "no_dev".
> 
> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
> Signed-off-by: Li Zetao <lizetao1@huawei.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel
diff mbox series

Patch

diff --git a/drivers/mtd/nand/raw/orion_nand.c b/drivers/mtd/nand/raw/orion_nand.c
index 7e0313889b50..2951d81614fd 100644
--- a/drivers/mtd/nand/raw/orion_nand.c
+++ b/drivers/mtd/nand/raw/orion_nand.c
@@ -169,16 +169,10 @@  static int __init orion_nand_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, info);
 
 	/* Not all platforms can gate the clock, so it is optional. */
-	info->clk = devm_clk_get_optional(&pdev->dev, NULL);
+	info->clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
 	if (IS_ERR(info->clk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(info->clk),
-				     "failed to get clock!\n");
-
-	ret = clk_prepare_enable(info->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to prepare clock!\n");
-		return ret;
-	}
+				     "failed to get and enable clock!\n");
 
 	/*
 	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
@@ -189,19 +183,13 @@  static int __init orion_nand_probe(struct platform_device *pdev)
 
 	ret = nand_scan(nc, 1);
 	if (ret)
-		goto no_dev;
+		return ret;
 
 	mtd->name = "orion_nand";
 	ret = mtd_device_register(mtd, board->parts, board->nr_parts);
-	if (ret) {
+	if (ret)
 		nand_cleanup(nc);
-		goto no_dev;
-	}
-
-	return 0;
 
-no_dev:
-	clk_disable_unprepare(info->clk);
 	return ret;
 }
 
@@ -215,8 +203,6 @@  static void orion_nand_remove(struct platform_device *pdev)
 	WARN_ON(ret);
 
 	nand_cleanup(chip);
-
-	clk_disable_unprepare(info->clk);
 }
 
 #ifdef CONFIG_OF