Commit f2b03c10 authored by Shunzhou Jiang's avatar Shunzhou Jiang Committed by Neil Armstrong
Browse files

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: default avatarShunzhou Jiang <shunzhou.jiang@amlogic.com>
Reviewed-by: default avatarKevin Hilman <khilman@baylibre.com>
Signed-off-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220307025357.1368673-3-shunzhou.jiang@amlogic.com
parent 40b358f6

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

+22 −0
Original line number Diff line number Diff line
@@ -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);