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pmdomain: rockchip: Add smc call to inform firmware 

Inform firmware to keep the power domain on or off.

Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/1738736156-119203-5-git-send-email-shawn.lin@rock-chips.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
pull/1184/head
Shawn Lin 2025-02-05 14:15:53 +08:00 committed by Ulf Hansson
parent cd3fa304ba
commit 58ebba35dd
1 changed files with 8 additions and 0 deletions
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8
drivers/pmdomain/rockchip/pm-domains.c
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@ -5,6 +5,7 @@
* Copyright (c) 2015 ROCKCHIP, Co. Ltd.
*/
#include <linux/arm-smccc.h>
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/err.h>
@ -20,6 +21,7 @@
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
#include <soc/rockchip/pm_domains.h>
#include <soc/rockchip/rockchip_sip.h>
#include <dt-bindings/power/px30-power.h>
#include <dt-bindings/power/rockchip,rv1126-power.h>
#include <dt-bindings/power/rk3036-power.h>
@ -540,6 +542,7 @@ static void rockchip_do_pmu_set_power_domain(struct rockchip_pm_domain *pd,
struct generic_pm_domain *genpd = &pd->genpd;
u32 pd_pwr_offset = pd->info->pwr_offset;
bool is_on, is_mem_on = false;
struct arm_smccc_res res;
if (pd->info->pwr_mask == 0)
return;
@ -567,6 +570,11 @@ static void rockchip_do_pmu_set_power_domain(struct rockchip_pm_domain *pd,
genpd->name, is_on);
return;
}
/* Inform firmware to keep this pd on or off */
arm_smccc_smc(ROCKCHIP_SIP_SUSPEND_MODE, ROCKCHIP_SLEEP_PD_CONFIG,
pmu->info->pwr_offset + pd_pwr_offset,
pd->info->pwr_mask, on, 0, 0, 0, &res);
}
static int rockchip_pd_power(struct rockchip_pm_domain *pd, bool power_on)