| Message ID | 20230822131237.1022815-12-lizetao1@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spi: Use devm_clk_get_*() helper function to simplify the drivers. | expand |
On Tue, Aug 22, 2023 at 09:12:23PM +0800, Li Zetao wrote: > 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. > > Signed-off-by: Li Zetao <lizetao1@huawei.com> LGTM. Thanks! Acked-by: Serge Semin <fancer.lancer@gmail.com> -Serge(y) > --- > drivers/spi/spi-dw-bt1.c | 23 +++++------------------ > 1 file changed, 5 insertions(+), 18 deletions(-) > > diff --git a/drivers/spi/spi-dw-bt1.c b/drivers/spi/spi-dw-bt1.c > index 5e1c01822967..5391bcac305c 100644 > --- a/drivers/spi/spi-dw-bt1.c > +++ b/drivers/spi/spi-dw-bt1.c > @@ -269,43 +269,32 @@ static int dw_spi_bt1_probe(struct platform_device *pdev) > > dws->paddr = mem->start; > > - dwsbt1->clk = devm_clk_get(&pdev->dev, NULL); > + dwsbt1->clk = devm_clk_get_enabled(&pdev->dev, NULL); > if (IS_ERR(dwsbt1->clk)) > return PTR_ERR(dwsbt1->clk); > > - ret = clk_prepare_enable(dwsbt1->clk); > - if (ret) > - return ret; > - > dws->bus_num = pdev->id; > dws->reg_io_width = 4; > dws->max_freq = clk_get_rate(dwsbt1->clk); > - if (!dws->max_freq) { > - ret = -EINVAL; > - goto err_disable_clk; > - } > + if (!dws->max_freq) > + return -EINVAL; > > init_func = device_get_match_data(&pdev->dev); > ret = init_func(pdev, dwsbt1); > if (ret) > - goto err_disable_clk; > + return ret; > > pm_runtime_enable(&pdev->dev); > > ret = dw_spi_add_host(&pdev->dev, dws); > if (ret) { > pm_runtime_disable(&pdev->dev); > - goto err_disable_clk; > + return ret; > } > > platform_set_drvdata(pdev, dwsbt1); > > return 0; > - > -err_disable_clk: > - clk_disable_unprepare(dwsbt1->clk); > - > - return ret; > } > > static void dw_spi_bt1_remove(struct platform_device *pdev) > @@ -315,8 +304,6 @@ static void dw_spi_bt1_remove(struct platform_device *pdev) > dw_spi_remove_host(&dwsbt1->dws); > > pm_runtime_disable(&pdev->dev); > - > - clk_disable_unprepare(dwsbt1->clk); > } > > static const struct of_device_id dw_spi_bt1_of_match[] = { > -- > 2.34.1 >
diff --git a/drivers/spi/spi-dw-bt1.c b/drivers/spi/spi-dw-bt1.c index 5e1c01822967..5391bcac305c 100644 --- a/drivers/spi/spi-dw-bt1.c +++ b/drivers/spi/spi-dw-bt1.c @@ -269,43 +269,32 @@ static int dw_spi_bt1_probe(struct platform_device *pdev) dws->paddr = mem->start; - dwsbt1->clk = devm_clk_get(&pdev->dev, NULL); + dwsbt1->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(dwsbt1->clk)) return PTR_ERR(dwsbt1->clk); - ret = clk_prepare_enable(dwsbt1->clk); - if (ret) - return ret; - dws->bus_num = pdev->id; dws->reg_io_width = 4; dws->max_freq = clk_get_rate(dwsbt1->clk); - if (!dws->max_freq) { - ret = -EINVAL; - goto err_disable_clk; - } + if (!dws->max_freq) + return -EINVAL; init_func = device_get_match_data(&pdev->dev); ret = init_func(pdev, dwsbt1); if (ret) - goto err_disable_clk; + return ret; pm_runtime_enable(&pdev->dev); ret = dw_spi_add_host(&pdev->dev, dws); if (ret) { pm_runtime_disable(&pdev->dev); - goto err_disable_clk; + return ret; } platform_set_drvdata(pdev, dwsbt1); return 0; - -err_disable_clk: - clk_disable_unprepare(dwsbt1->clk); - - return ret; } static void dw_spi_bt1_remove(struct platform_device *pdev) @@ -315,8 +304,6 @@ static void dw_spi_bt1_remove(struct platform_device *pdev) dw_spi_remove_host(&dwsbt1->dws); pm_runtime_disable(&pdev->dev); - - clk_disable_unprepare(dwsbt1->clk); } static const struct of_device_id dw_spi_bt1_of_match[] = {
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. Signed-off-by: Li Zetao <lizetao1@huawei.com> --- drivers/spi/spi-dw-bt1.c | 23 +++++------------------ 1 file changed, 5 insertions(+), 18 deletions(-)