pmdomain: amlogic: modify some power domains property

Some power domains for C3 can be using runtime PM,
remove ALWAYS_ON property. And add some power domains
description when ALWAYS_ON property.
Signed-off-by: xianwei.zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230911025223.3433776-2-xianwei.zhao@amlogic.com
[Ulf: Re-based to fit the pmdomain subsystem]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/pmdomain/amlogic/meson-secure-pwrc.c

@@ -122,18 +122,19 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
 };
 
 static struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
-	SEC_PD(C3_NNA,	0),
-	SEC_PD(C3_AUDIO,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_SDIOA,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_EMMC,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_USB_COMB, GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_SDCARD,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_ETH,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_GE2D,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_CVE,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_GDC_WRAP,	GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_ISP_TOP,		GENPD_FLAG_ALWAYS_ON),
-	SEC_PD(C3_MIPI_ISP_WRAP, GENPD_FLAG_ALWAYS_ON),
+	SEC_PD(C3_NNA,		0),
+	SEC_PD(C3_AUDIO,	0),
+	SEC_PD(C3_SDIOA,	0),
+	SEC_PD(C3_EMMC,		0),
+	SEC_PD(C3_USB_COMB,	0),
+	SEC_PD(C3_SDCARD,	0),
+	/* ETH is for ethernet online wakeup, and should be always on */
+	SEC_PD(C3_ETH,		GENPD_FLAG_ALWAYS_ON),
+	SEC_PD(C3_GE2D,		0),
+	SEC_PD(C3_CVE,		0),
+	SEC_PD(C3_GDC_WRAP,	0),
+	SEC_PD(C3_ISP_TOP,	0),
+	SEC_PD(C3_MIPI_ISP_WRAP, 0),
 	SEC_PD(C3_VCODEC,	0),
 };