[PATCH 03/10] clk: imx: scu: bypass cpu clock save and restore
Abel Vesa
abel.vesa at nxp.com
Mon Jun 14 01:54:37 PDT 2021
On 21-06-04 17:09:36, Dong Aisheng wrote:
> CPU clock is managed by ATF. No need save and restore.
>
> Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>
Looks good to me.
Reviewed-by: Abel Vesa <abel.vesa at nxp.com>
> ---
> drivers/clk/imx/clk-scu.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
> index 680b2650fd45..d87a1a1b297e 100644
> --- a/drivers/clk/imx/clk-scu.c
> +++ b/drivers/clk/imx/clk-scu.c
> @@ -538,6 +538,11 @@ static int imx_clk_scu_probe(struct platform_device *pdev)
> static int __maybe_unused imx_clk_scu_suspend(struct device *dev)
> {
> struct clk_scu *clk = dev_get_drvdata(dev);
> + u32 rsrc_id = clk->rsrc_id;
> +
> + if ((rsrc_id == IMX_SC_R_A35) || (rsrc_id == IMX_SC_R_A53) ||
> + (rsrc_id == IMX_SC_R_A72))
> + return 0;
>
> clk->rate = clk_hw_get_rate(&clk->hw);
> clk->is_enabled = clk_hw_is_enabled(&clk->hw);
> @@ -554,8 +559,13 @@ static int __maybe_unused imx_clk_scu_suspend(struct device *dev)
> static int __maybe_unused imx_clk_scu_resume(struct device *dev)
> {
> struct clk_scu *clk = dev_get_drvdata(dev);
> + u32 rsrc_id = clk->rsrc_id;
> int ret = 0;
>
> + if ((rsrc_id == IMX_SC_R_A35) || (rsrc_id == IMX_SC_R_A53) ||
> + (rsrc_id == IMX_SC_R_A72))
> + return 0;
> +
> if (clk->rate) {
> ret = clk_scu_set_rate(&clk->hw, clk->rate, 0);
> dev_dbg(dev, "restore rate %d %s\n", clk->rate,
> --
> 2.25.1
>
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