Inform firmware to keep the power domain on or off. Suggested-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> --- Changes in v5: - fix a compile warning Changes in v4: None Changes in v3: None Changes in v2: None drivers/pmdomain/rockchip/pm-domains.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/pmdomain/rockchip/pm-domains.c b/drivers/pmdomain/rockchip/pm-domains.c index cb0f938..49842f1 100644 --- a/drivers/pmdomain/rockchip/pm-domains.c +++ b/drivers/pmdomain/rockchip/pm-domains.c @@ -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) -- 2.7.4
