[PATCH -next v2 01/12] mtd: spear_smi: Use helper function devm_clk_get_enabled()

Li Zetao
2023-08-18T07:47:26Z

Since commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared
and enabled clocks"), devm_clk_get() and clk_prepare_enable() can now be
replaced by devm_clk_get_enabled() when driver enable (and possibly
prepare) the clocks for the whole lifetime of the device. Moreover, it is
no longer necessary to unprepare and disable the clock explicitly, so drop
the label "err_irq".

Signed-off-by: Li Zetao <lizetao1@huawei.com>
---
v1 -> v2: Modify commit message.
v1: https://lore.kernel.org/all/20230817024509.3951629-2-lizetao1@huawei.com/

drivers/mtd/devices/spear_smi.c | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c
index 93bca5225116..0a35e5236ae5 100644
--- a/drivers/mtd/devices/spear_smi.c
+++ b/drivers/mtd/devices/spear_smi.c
@@ -993,21 +993,17 @@ static int spear_smi_probe(struct platform_device *pdev)
dev->num_flashes = MAX_NUM_FLASH_CHIP;
}

- dev->clk = devm_clk_get(&pdev->dev, NULL);
+ dev->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(dev->clk)) {
ret = PTR_ERR(dev->clk);
goto err;
}

- ret = clk_prepare_enable(dev->clk);
- if (ret)
- goto err;
-
ret = devm_request_irq(&pdev->dev, irq, spear_smi_int_handler, 0,
pdev->name, dev);
if (ret) {
dev_err(&dev->pdev->dev, "SMI IRQ allocation failed\n");
- goto err_irq;
+ goto err;
}

mutex_init(&dev->lock);
@@ -1020,14 +1016,11 @@ static int spear_smi_probe(struct platform_device *pdev)
ret = spear_smi_setup_banks(pdev, i, pdata->np[i]);
if (ret) {
dev_err(&dev->pdev->dev, "bank setup failed\n");
- goto err_irq;
+ goto err;
}
}

return 0;
-
-err_irq:
- clk_disable_unprepare(dev->clk);
err:
return ret;
}
@@ -1056,8 +1049,6 @@ static int spear_smi_remove(struct platform_device *pdev)
WARN_ON(mtd_device_unregister(&flash->mtd));
}

- clk_disable_unprepare(dev->clk);
-
return 0;
}

--
2.34.1