clk: imx: scu: bypass cpu clock save and restore

CPU clock is managed by ATF. No need save and restore.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>

Author: Dong Aisheng

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,