soc: c3: Add support for power domains controller

Add support for C3 Power controller. C3 power control
registers are in secure domain, and should be accessed by SMC.

Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230707003710.2667989-4-xianwei.zhao@amlogic.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/drivers/soc/amlogic/meson-secure-pwrc.c b/drivers/soc/amlogic/meson-secure-pwrc.c
index c11d65a3e3d912fe17bdd224fa51bd0d1f506ebf..a1ffebf70de3511780ab2faab225f55562a54a4b 100644 (file)
--- a/drivers/soc/amlogic/meson-secure-pwrc.c
+++ b/drivers/soc/amlogic/meson-secure-pwrc.c
@@ -11,6 +11,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <dt-bindings/power/meson-a1-power.h>
+#include <dt-bindings/power/amlogic,c3-pwrc.h>
 #include <dt-bindings/power/meson-s4-power.h>
 #include <linux/arm-smccc.h>
 #include <linux/firmware/meson/meson_sm.h>
@@ -120,6 +121,22 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
        SEC_PD(RSA,     0),
 };
 
+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_VCODEC,       0),
+};
+
 static struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
        SEC_PD(S4_DOS_HEVC,     0),
        SEC_PD(S4_DOS_VDEC,     0),
@@ -202,6 +219,11 @@ static struct meson_secure_pwrc_domain_data meson_secure_a1_pwrc_data = {
        .count = ARRAY_SIZE(a1_pwrc_domains),
 };
 
+static struct meson_secure_pwrc_domain_data amlogic_secure_c3_pwrc_data = {
+       .domains = c3_pwrc_domains,
+       .count = ARRAY_SIZE(c3_pwrc_domains),
+};
+
 static struct meson_secure_pwrc_domain_data meson_secure_s4_pwrc_data = {
        .domains = s4_pwrc_domains,
        .count = ARRAY_SIZE(s4_pwrc_domains),
@@ -212,6 +234,10 @@ static const struct of_device_id meson_secure_pwrc_match_table[] = {
                .compatible = "amlogic,meson-a1-pwrc",
                .data = &meson_secure_a1_pwrc_data,
        },
+       {
+               .compatible = "amlogic,c3-pwrc",
+               .data = &amlogic_secure_c3_pwrc_data,
+       },
        {
                .compatible = "amlogic,meson-s4-pwrc",
                .data = &meson_secure_s4_pwrc_data,