pmdomain: amlogic: Add support for A4 power domains controller

Add support for A4 power controller. A4 power control
registers are in secure domain, and should be accessed by SMC.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Link: https://lore.kernel.org/r/20240529-a4_secpowerdomain-v2-2-47502fc0eaf3@amlogic.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/pmdomain/amlogic/meson-secure-pwrc.c b/drivers/pmdomain/amlogic/meson-secure-pwrc.c
index 4d5bda0d60fc852c18d46be7cd773bf95b1d3084..3a84d8a74a5e2bcbd749a3833327550657edd2f5 100644 (file)
--- a/drivers/pmdomain/amlogic/meson-secure-pwrc.c
+++ b/drivers/pmdomain/amlogic/meson-secure-pwrc.c
@@ -14,6 +14,7 @@
 #include <dt-bindings/power/amlogic,c3-pwrc.h>
 #include <dt-bindings/power/meson-s4-power.h>
 #include <dt-bindings/power/amlogic,t7-pwrc.h>
+#include <dt-bindings/power/amlogic,a4-pwrc.h>
 #include <linux/arm-smccc.h>
 #include <linux/firmware/meson/meson_sm.h>
 #include <linux/module.h>
@@ -136,6 +137,24 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
        SEC_PD(RSA,     0),
 };
 
+static struct meson_secure_pwrc_domain_desc a4_pwrc_domains[] = {
+       SEC_PD(A4_AUDIO,        0),
+       SEC_PD(A4_SDIOA,        0),
+       SEC_PD(A4_EMMC, 0),
+       SEC_PD(A4_USB_COMB,     0),
+       SEC_PD(A4_ETH,          0),
+       SEC_PD(A4_VOUT,         0),
+       SEC_PD(A4_AUDIO_PDM,    0),
+       /* DMC is for DDR PHY ana/dig and DMC, and should be always on */
+       SEC_PD(A4_DMC,  GENPD_FLAG_ALWAYS_ON),
+       /* WRAP is secure_top, a lot of modules are included, and should be always on */
+       SEC_PD(A4_SYS_WRAP,     GENPD_FLAG_ALWAYS_ON),
+       SEC_PD(A4_AO_I2C_S,     0),
+       SEC_PD(A4_AO_UART,      0),
+       /* IR is wake up trigger source, and should be always on */
+       SEC_PD(A4_AO_IR,        GENPD_FLAG_ALWAYS_ON),
+};
+
 static struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
        SEC_PD(C3_NNA,          0),
        SEC_PD(C3_AUDIO,        0),
@@ -311,6 +330,11 @@ 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_a4_pwrc_data = {
+       .domains = a4_pwrc_domains,
+       .count = ARRAY_SIZE(a4_pwrc_domains),
+};
+
 static struct meson_secure_pwrc_domain_data amlogic_secure_c3_pwrc_data = {
        .domains = c3_pwrc_domains,
        .count = ARRAY_SIZE(c3_pwrc_domains),
@@ -331,6 +355,10 @@ static const struct of_device_id meson_secure_pwrc_match_table[] = {
                .compatible = "amlogic,meson-a1-pwrc",
                .data = &meson_secure_a1_pwrc_data,
        },
+       {
+               .compatible = "amlogic,a4-pwrc",
+               .data = &amlogic_secure_a4_pwrc_data,
+       },
        {
                .compatible = "amlogic,c3-pwrc",
                .data = &amlogic_secure_c3_pwrc_data,