2022-02-28 11:49:02

by Shunzhou Jiang

Subject: [PATCH V5 0/2] Power: meson-s4: add s4 power domain driver

This patchset adds Power controller driver support for Meson-S4 SoC
Likes Meson-A1, the power domains register only can access in secure world

Shunzhou Jiang (2):
dt-bindings: power: add Amlogic s4 power domains bindings
soc: s4: Add support for power domains controller

.../power/amlogic,meson-sec-pwrc.yaml | 3 ++-
drivers/soc/amlogic/meson-secure-pwrc.c | 22 +++++++++++++++++++
include/dt-bindings/power/meson-s4-power.h | 19 ++++++++++++++++
3 files changed, 43 insertions(+), 1 deletion(-)
create mode 100644 include/dt-bindings/power/meson-s4-power.h


base-commit: 3448a018ded03ccd4093d6675f4a39eb2d1a18ef
--
2.34.1

2022-02-28 12:23:16

by Shunzhou Jiang

Subject: [PATCH V5 2/2] soc: s4: Add support for power domains controller

Add support s4 Power controller. In s4, power control
registers are in secure domain, and should be accessed by smc.

Signed-off-by: Shunzhou Jiang <[email protected]>
---
drivers/soc/amlogic/meson-secure-pwrc.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/soc/amlogic/meson-secure-pwrc.c b/drivers/soc/amlogic/meson-secure-pwrc.c
index 59bd195fa9c9..a10a417a87db 100644
--- 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/meson-s4-power.h>
#include <linux/arm-smccc.h>
#include <linux/firmware/meson/meson_sm.h>
#include <linux/module.h>
@@ -119,6 +120,18 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
SEC_PD(RSA, 0),
};

+static struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
+ SEC_PD(S4_DOS_HEVC, 0),
+ SEC_PD(S4_DOS_VDEC, 0),
+ SEC_PD(S4_VPU_HDMI, 0),
+ SEC_PD(S4_USB_COMB, 0),
+ SEC_PD(S4_GE2D, 0),
+ /* ETH is for ethernet online wakeup, and should be always on */
+ SEC_PD(S4_ETH, GENPD_FLAG_ALWAYS_ON),
+ SEC_PD(S4_DEMOD, 0),
+ SEC_PD(S4_AUDIO, 0),
+};
+
static int meson_secure_pwrc_probe(struct platform_device *pdev)
{
int i;
@@ -187,11 +200,20 @@ 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 meson_secure_s4_pwrc_data = {
+ .domains = s4_pwrc_domains,
+ .count = ARRAY_SIZE(s4_pwrc_domains),
+};
+
static const struct of_device_id meson_secure_pwrc_match_table[] = {
{
.compatible = "amlogic,meson-a1-pwrc",
.data = &meson_secure_a1_pwrc_data,
},
+ {
+ .compatible = "amlogic,meson-s4-pwrc",
+ .data = &meson_secure_s4_pwrc_data,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, meson_secure_pwrc_match_table);
--
2.34.1