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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 <shunzhou.jiang@amlogic.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220307025357.1368673-3-shunzhou.jiang@amlogic.com
This commit is contained in:
Shunzhou Jiang 2022-03-07 10:53:57 +08:00 committed by Neil Armstrong
parent 40b358f615
commit f2b03c1056
1 changed files with 22 additions and 0 deletions
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22
drivers/soc/amlogic/meson-secure-pwrc.c
View File

@ -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);