Re: [PATCH 03/10] clk: imx: scu: bypass cpu clock save and restore
From: Abel Vesa <hidden>
Date: 2021-06-14 08:54:41
Also in:
linux-arm-kernel
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@nxp.com>
Looks good to me. Reviewed-by: Abel Vesa <redacted>
quoted hunk ↗ jump to hunk
--- 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