diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2023-09-19 22:55:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-03 15:35:38 +0300 |
| commit | 70a0d499db058b517bf60ec2e954a9a6bb688daa (patch) | |
| tree | e4ddd7caf4c741707a366ddecac3255c4d017745 /drivers/tty/serial/8250/8250_dw.c | |
| parent | aef6b8631f9ddf22e9f331608ecc1573943c3c81 (diff) | |
| download | linux-70a0d499db058b517bf60ec2e954a9a6bb688daa.tar.xz | |
serial: 8250_dw: Use devm_clk_get_optional_enabled()
Use devm_clk_get_optional_enabled() to simplify the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230919195513.3197930-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250_dw.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 27 |
1 files changed, 3 insertions, 24 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 95d45dce0880..b94f567647cb 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -498,11 +498,6 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) } } -static void dw8250_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static void dw8250_reset_control_assert(void *data) { reset_control_assert(data); @@ -598,23 +593,15 @@ static int dw8250_probe(struct platform_device *pdev) device_property_read_u32(dev, "clock-frequency", &p->uartclk); /* If there is separate baudclk, get the rate from it. */ - data->clk = devm_clk_get_optional(dev, "baudclk"); + data->clk = devm_clk_get_optional_enabled(dev, "baudclk"); if (data->clk == NULL) - data->clk = devm_clk_get_optional(dev, NULL); + data->clk = devm_clk_get_optional_enabled(dev, NULL); if (IS_ERR(data->clk)) return PTR_ERR(data->clk); INIT_WORK(&data->clk_work, dw8250_clk_work_cb); data->clk_notifier.notifier_call = dw8250_clk_notifier_cb; - err = clk_prepare_enable(data->clk); - if (err) - return dev_err_probe(dev, err, "could not enable optional baudclk\n"); - - err = devm_add_action_or_reset(dev, dw8250_clk_disable_unprepare, data->clk); - if (err) - return err; - if (data->clk) p->uartclk = clk_get_rate(data->clk); @@ -622,18 +609,10 @@ static int dw8250_probe(struct platform_device *pdev) if (!p->uartclk) return dev_err_probe(dev, -EINVAL, "clock rate not defined\n"); - data->pclk = devm_clk_get_optional(dev, "apb_pclk"); + data->pclk = devm_clk_get_optional_enabled(dev, "apb_pclk"); if (IS_ERR(data->pclk)) return PTR_ERR(data->pclk); - err = clk_prepare_enable(data->pclk); - if (err) - return dev_err_probe(dev, err, "could not enable apb_pclk\n"); - - err = devm_add_action_or_reset(dev, dw8250_clk_disable_unprepare, data->pclk); - if (err) - return err; - data->rst = devm_reset_control_get_optional_exclusive(dev, NULL); if (IS_ERR(data->rst)) return PTR_ERR(data->rst); |