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| author | Li Zetao <lizetao1@huawei.com> | 2023-08-23 15:39:14 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-09-11 02:31:52 +0200 |
| commit | 1d3ea34b7b69b2cbdcc82f1d399705c06ea5f748 (patch) | |
| tree | 782cfce55de1394a9ee13feb484b1e43a6c0b425 /drivers | |
| parent | Merge existing fixes from spi/for-6.6 into new branch (diff) | |
| download | linux-1d3ea34b7b69b2cbdcc82f1d399705c06ea5f748.tar.xz linux-1d3ea34b7b69b2cbdcc82f1d399705c06ea5f748.zip | |
spi: ar934x: Use helper function devm_clk_get_enabled()
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 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/20230823133938.1359106-2-lizetao1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-ar934x.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/drivers/spi/spi-ar934x.c b/drivers/spi/spi-ar934x.c index 58b98cea31d9..5ba988720851 100644 --- a/drivers/spi/spi-ar934x.c +++ b/drivers/spi/spi-ar934x.c @@ -168,27 +168,21 @@ static int ar934x_spi_probe(struct platform_device *pdev) struct ar934x_spi *sp; void __iomem *base; struct clk *clk; - int ret; base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) return PTR_ERR(base); - clk = devm_clk_get(&pdev->dev, NULL); + clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); return PTR_ERR(clk); } - ret = clk_prepare_enable(clk); - if (ret) - return ret; - ctlr = devm_spi_alloc_host(&pdev->dev, sizeof(*sp)); if (!ctlr) { dev_info(&pdev->dev, "failed to allocate spi controller\n"); - ret = -ENOMEM; - goto err_clk_disable; + return -ENOMEM; } /* disable flash mapping and expose spi controller registers */ @@ -212,25 +206,15 @@ static int ar934x_spi_probe(struct platform_device *pdev) sp->clk_freq = clk_get_rate(clk); sp->ctlr = ctlr; - ret = spi_register_controller(ctlr); - if (!ret) - return 0; - -err_clk_disable: - clk_disable_unprepare(clk); - return ret; + return spi_register_controller(ctlr); } static void ar934x_spi_remove(struct platform_device *pdev) { struct spi_controller *ctlr; - struct ar934x_spi *sp; ctlr = dev_get_drvdata(&pdev->dev); - sp = spi_controller_get_devdata(ctlr); - spi_unregister_controller(ctlr); - clk_disable_unprepare(sp->clk); } static struct platform_driver ar934x_spi_driver = { |