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spi: pic32-sqi: Use helper function devm_clk_get_enabled()

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Since commit 7ef9651e97 ("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 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.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Link: https://lore.kernel.org/r/20230823133938.1359106-23-lizetao1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Li Zetao 2023-08-23 21:39:35 +08:00 committed by Mark Brown
parent bbd0a66b85
commit 909d4cd6bc
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 24 deletions
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27
drivers/spi/spi-pic32-sqi.c
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@ -593,33 +593,20 @@ static int pic32_sqi_probe(struct platform_device *pdev)
}
/* clocks */
sqi->sys_clk = devm_clk_get(&pdev->dev, "reg_ck");
sqi->sys_clk = devm_clk_get_enabled(&pdev->dev, "reg_ck");
if (IS_ERR(sqi->sys_clk)) {
ret = PTR_ERR(sqi->sys_clk);
dev_err(&pdev->dev, "no sys_clk ?\n");
goto err_free_host;
}
sqi->base_clk = devm_clk_get(&pdev->dev, "spi_ck");
sqi->base_clk = devm_clk_get_enabled(&pdev->dev, "spi_ck");
if (IS_ERR(sqi->base_clk)) {
ret = PTR_ERR(sqi->base_clk);
dev_err(&pdev->dev, "no base clk ?\n");
goto err_free_host;
}
ret = clk_prepare_enable(sqi->sys_clk);
if (ret) {
dev_err(&pdev->dev, "sys clk enable failed\n");
goto err_free_host;
}
ret = clk_prepare_enable(sqi->base_clk);
if (ret) {
dev_err(&pdev->dev, "base clk enable failed\n");
clk_disable_unprepare(sqi->sys_clk);
goto err_free_host;
}
init_completion(&sqi->xfer_done);
/* initialize hardware */
@ -629,7 +616,7 @@ static int pic32_sqi_probe(struct platform_device *pdev)
ret = ring_desc_ring_alloc(sqi);
if (ret) {
dev_err(&pdev->dev, "ring alloc failed\n");
goto err_disable_clk;
goto err_free_host;
}
/* install irq handlers */
@ -669,10 +656,6 @@ static int pic32_sqi_probe(struct platform_device *pdev)
err_free_ring:
ring_desc_ring_free(sqi);
err_disable_clk:
clk_disable_unprepare(sqi->base_clk);
clk_disable_unprepare(sqi->sys_clk);
err_free_host:
spi_controller_put(host);
return ret;
@ -685,10 +668,6 @@ static void pic32_sqi_remove(struct platform_device *pdev)
/* release resources */
free_irq(sqi->irq, sqi);
ring_desc_ring_free(sqi);
/* disable clk */
clk_disable_unprepare(sqi->base_clk);
clk_disable_unprepare(sqi->sys_clk);
}
static const struct of_device_id pic32_sqi_of_ids[] = {