Re: [PATCH v2 2/2] bus: bt1-apb: change to use devm_clk_get_enabled() helper

From: Serge Semin
Date: Thu Aug 29 2024 - 04:25:28 EST


On Mon, Aug 26, 2024 at 08:53:58PM -0600, Wu Bo wrote:
> Use devm_clk_get_enabled() instead of devm_clk_get() to make the code
> cleaner and avoid calling clk_disable_unprepare()

Great! Thanks.
Acked-by: Serge Semin <fancer.lancer@xxxxxxxxx>

-Serge(y)

>
> Signed-off-by: Wu Bo <bo.wu@xxxxxxxx>
> ---
> drivers/bus/bt1-apb.c | 23 +----------------------
> 1 file changed, 1 insertion(+), 22 deletions(-)
>
> diff --git a/drivers/bus/bt1-apb.c b/drivers/bus/bt1-apb.c
> index 595fb22b73e0..7463124b6dd9 100644
> --- a/drivers/bus/bt1-apb.c
> +++ b/drivers/bus/bt1-apb.c
> @@ -185,34 +185,13 @@ static int bt1_apb_request_rst(struct bt1_apb *apb)
> return ret;
> }
>
> -static void bt1_apb_disable_clk(void *data)
> -{
> - struct bt1_apb *apb = data;
> -
> - clk_disable_unprepare(apb->pclk);
> -}
> -
> static int bt1_apb_request_clk(struct bt1_apb *apb)
> {
> - int ret;
> -
> - apb->pclk = devm_clk_get(apb->dev, "pclk");
> + apb->pclk = devm_clk_get_enabled(apb->dev, "pclk");
> if (IS_ERR(apb->pclk))
> return dev_err_probe(apb->dev, PTR_ERR(apb->pclk),
> "Couldn't get APB clock descriptor\n");
>
> - ret = clk_prepare_enable(apb->pclk);
> - if (ret) {
> - dev_err(apb->dev, "Couldn't enable the APB clock\n");
> - return ret;
> - }
> -
> - ret = devm_add_action_or_reset(apb->dev, bt1_apb_disable_clk, apb);
> - if (ret) {
> - dev_err(apb->dev, "Can't add APB EHB clocks disable action\n");
> - return ret;
> - }
> -
> apb->rate = clk_get_rate(apb->pclk);
> if (!apb->rate) {
> dev_err(apb->dev, "Invalid clock rate\n");
> --
> 2.25.1
>