[PATCH 7/8] tty: st-asc: Use devm_clk_get_enabled() helpers
From: Lei Liu <hidden>
Date: 2024-08-22 03:41:43
Also in:
linux-mips, linux-serial, linux-tegra, lkml
Subsystem:
arm/sti architecture, the rest, tty layer and serial drivers · Maintainers:
Patrice Chotard, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
The devm_clk_get_enabled() helpers:
- call devm_clk_get()
- call clk_prepare_enable() and register what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code and avoids calls to clk_disable_unprepare().
Signed-off-by: Lei Liu <redacted>
---
drivers/tty/serial/st-asc.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index f91753a40a69..df666766d50e 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c@@ -706,17 +706,13 @@ static int asc_init_port(struct asc_port *ascport, spin_lock_init(&port->lock); - ascport->clk = devm_clk_get(&pdev->dev, NULL); + ascport->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (WARN_ON(IS_ERR(ascport->clk))) return -EINVAL; - /* ensure that clk rate is correct by enabling the clk */ - ret = clk_prepare_enable(ascport->clk); - if (ret) - return ret; + ascport->port.uartclk = clk_get_rate(ascport->clk); WARN_ON(ascport->port.uartclk == 0); - clk_disable_unprepare(ascport->clk); ascport->pinctrl = devm_pinctrl_get(&pdev->dev); if (IS_ERR(ascport->pinctrl)) {
--
2.34.1