Merge tag 'pmdomain-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "pmdomain core:
   - Add support for HW-managed devices

  pmdomain providers:
   - amlogic: Add support for the A5 and the A4 power domains
   - arm: Enable system wakeups for the SCMI PM domain
   - qcom/clk: Add HW-mode callbacks to allow switching of GDSC mode

  pmdomain consumers:
   - qcom/media/venus: Enable support for switching GDSC HW-mode on V6"

* tag 'pmdomain-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: amlogic: Constify struct meson_secure_pwrc_domain_desc
  venus: pm_helpers: Use dev_pm_genpd_set_hwmode to switch GDSC mode on V6
  clk: qcom: videocc: Use HW_CTRL_TRIGGER for SM8250, SC7280 vcodec GDSC's
  clk: qcom: gdsc: Add set and get hwmode callbacks to switch GDSC mode
  PM: domains: Add the domain HW-managed mode to the summary
  PM: domains: Allow devices attached to genpd to be managed by HW
  pmdomain: amlogic: Add support for A5 power domains controller
  dt-bindings: power: add Amlogic A5 power domains
  pmdomain: amlogic: add missing MODULE_DESCRIPTION() macros
  pmdomain: arm: scmi_pm_domain: set flag GENPD_FLAG_ACTIVE_WAKEUP
  pmdomain: renesas: rmobile-sysc: Use for_each_child_of_node_scoped()
  pmdomain: core: Use genpd_is_irq_safe() helper
  pmdomain: amlogic: Add support for A4 power domains controller
  dt-bindings: power: add Amlogic A4 power domains

Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml

@@ -20,6 +20,8 @@ properties:
     enum:
       - amlogic,meson-a1-pwrc
       - amlogic,meson-s4-pwrc
+      - amlogic,a4-pwrc
+      - amlogic,a5-pwrc
       - amlogic,c3-pwrc
       - amlogic,t7-pwrc
 

drivers/clk/qcom/gdsc.c

@@ -363,6 +363,43 @@ static int gdsc_disable(struct generic_pm_domain *domain)
 	return 0;
 }
 
+static int gdsc_set_hwmode(struct generic_pm_domain *domain, struct device *dev, bool mode)
+{
+	struct gdsc *sc = domain_to_gdsc(domain);
+	int ret;
+
+	ret = gdsc_hwctrl(sc, mode);
+	if (ret)
+		return ret;
+
+	/*
+	 * Wait for the GDSC to go through a power down and
+	 * up cycle. If we poll the status register before the
+	 * power cycle is finished we might read incorrect values.
+	 */
+	udelay(1);
+
+	/*
+	 * When the GDSC is switched to HW mode, HW can disable the GDSC.
+	 * When the GDSC is switched back to SW mode, the GDSC will be enabled
+	 * again, hence we need to poll for GDSC to complete the power up.
+	 */
+	if (!mode)
+		return gdsc_poll_status(sc, GDSC_ON);
+
+	return 0;
+}
+
+static bool gdsc_get_hwmode(struct generic_pm_domain *domain, struct device *dev)
+{
+	struct gdsc *sc = domain_to_gdsc(domain);
+	u32 val;
+
+	regmap_read(sc->regmap, sc->gdscr, &val);
+
+	return !!(val & HW_CONTROL_MASK);
+}
+
 static int gdsc_init(struct gdsc *sc)
 {
 	u32 mask, val;
@@ -451,6 +488,10 @@ static int gdsc_init(struct gdsc *sc)
 		sc->pd.power_off = gdsc_disable;
 	if (!sc->pd.power_on)
 		sc->pd.power_on = gdsc_enable;
+	if (sc->flags & HW_CTRL_TRIGGER) {
+		sc->pd.set_hwmode_dev = gdsc_set_hwmode;
+		sc->pd.get_hwmode_dev = gdsc_get_hwmode;
+	}
 
 	ret = pm_genpd_init(&sc->pd, NULL, !on);
 	if (ret)

drivers/clk/qcom/gdsc.h

@@ -67,6 +67,7 @@ struct gdsc {
 #define ALWAYS_ON	BIT(6)
 #define RETAIN_FF_ENABLE	BIT(7)
 #define NO_RET_PERIPH	BIT(8)
+#define HW_CTRL_TRIGGER	BIT(9)
 	struct reset_controller_dev	*rcdev;
 	unsigned int			*resets;
 	unsigned int			reset_count;

drivers/clk/qcom/videocc-sc7280.c

@@ -236,7 +236,7 @@ static struct gdsc mvs0_gdsc = {
 		.name = "mvs0_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = HW_CTRL | RETAIN_FF_ENABLE,
+	.flags = HW_CTRL_TRIGGER | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc mvsc_gdsc = {

drivers/clk/qcom/videocc-sm8250.c

@@ -293,7 +293,7 @@ static struct gdsc mvs0_gdsc = {
 	.pd = {
 		.name = "mvs0_gdsc",
 	},
-	.flags = HW_CTRL,
+	.flags = HW_CTRL_TRIGGER,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
@@ -302,7 +302,7 @@ static struct gdsc mvs1_gdsc = {
 	.pd = {
 		.name = "mvs1_gdsc",
 	},
-	.flags = HW_CTRL,
+	.flags = HW_CTRL_TRIGGER,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 

drivers/media/platform/qcom/venus/pm_helpers.c

@@ -412,10 +412,9 @@ static int vcodec_control_v4(struct venus_core *core, u32 coreid, bool enable)
 	u32 val;
 	int ret;
 
-	if (IS_V6(core)) {
-		ctrl = core->wrapper_base + WRAPPER_CORE_POWER_CONTROL_V6;
-		stat = core->wrapper_base + WRAPPER_CORE_POWER_STATUS_V6;
-	} else if (coreid == VIDC_CORE_ID_1) {
+	if (IS_V6(core))
+		return dev_pm_genpd_set_hwmode(core->pmdomains->pd_devs[coreid], !enable);
+	else if (coreid == VIDC_CORE_ID_1) {
 		ctrl = core->wrapper_base + WRAPPER_VCODEC0_MMCC_POWER_CONTROL;
 		stat = core->wrapper_base + WRAPPER_VCODEC0_MMCC_POWER_STATUS;
 	} else {
@@ -451,9 +450,11 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask)
 
 		vcodec_clks_disable(core, core->vcodec0_clks);
 
+		if (!IS_V6(core)) {
 			ret = vcodec_control_v4(core, VIDC_CORE_ID_1, false);
 			if (ret)
 				return ret;
+		}
 
 		ret = pm_runtime_put_sync(core->pmdomains->pd_devs[1]);
 		if (ret < 0)
@@ -467,9 +468,11 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask)
 
 		vcodec_clks_disable(core, core->vcodec1_clks);
 
+		if (!IS_V6(core)) {
 			ret = vcodec_control_v4(core, VIDC_CORE_ID_2, false);
 			if (ret)
 				return ret;
+		}
 
 		ret = pm_runtime_put_sync(core->pmdomains->pd_devs[2]);
 		if (ret < 0)
@@ -488,9 +491,11 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
 		if (ret < 0)
 			return ret;
 
+		if (!IS_V6(core)) {
 			ret = vcodec_control_v4(core, VIDC_CORE_ID_1, true);
 			if (ret)
 				return ret;
+		}
 
 		ret = vcodec_clks_enable(core, core->vcodec0_clks);
 		if (ret)
@@ -506,9 +511,11 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
 		if (ret < 0)
 			return ret;
 
+		if (!IS_V6(core)) {
 			ret = vcodec_control_v4(core, VIDC_CORE_ID_2, true);
 			if (ret)
 				return ret;
+		}
 
 		ret = vcodec_clks_enable(core, core->vcodec1_clks);
 		if (ret)

drivers/pmdomain/amlogic/meson-ee-pwrc.c

@@ -648,4 +648,5 @@ static struct platform_driver meson_ee_pwrc_driver = {
 	},
 };
 module_platform_driver(meson_ee_pwrc_driver);
+MODULE_DESCRIPTION("Amlogic Meson Everything-Else Power Domains driver");
 MODULE_LICENSE("GPL v2");

drivers/pmdomain/amlogic/meson-gx-pwrc-vpu.c

@@ -376,4 +376,5 @@ static struct platform_driver meson_gx_pwrc_vpu_driver = {
 	},
 };
 module_platform_driver(meson_gx_pwrc_vpu_driver);
+MODULE_DESCRIPTION("Amlogic Meson GX Power Domains driver");
 MODULE_LICENSE("GPL v2");

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

@@ -14,6 +14,8 @@
 #include <dt-bindings/power/amlogic,c3-pwrc.h>
 #include <dt-bindings/power/meson-s4-power.h>
 #include <dt-bindings/power/amlogic,t7-pwrc.h>
+#include <dt-bindings/power/amlogic,a4-pwrc.h>
+#include <dt-bindings/power/amlogic,a5-pwrc.h>
 #include <linux/arm-smccc.h>
 #include <linux/firmware/meson/meson_sm.h>
 #include <linux/module.h>
@@ -45,7 +47,7 @@ struct meson_secure_pwrc_domain_desc {
 
 struct meson_secure_pwrc_domain_data {
 	unsigned int count;
-	struct meson_secure_pwrc_domain_desc *domains;
+	const struct meson_secure_pwrc_domain_desc *domains;
 };
 
 static bool pwrc_secure_is_off(struct meson_secure_pwrc_domain *pwrc_domain)
@@ -109,7 +111,7 @@ static int meson_secure_pwrc_on(struct generic_pm_domain *domain)
 	.parent = __parent,			\
 }
 
-static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
 	SEC_PD(DSPA,	0),
 	SEC_PD(DSPB,	0),
 	/* UART should keep working in ATF after suspend and before resume */
@@ -136,7 +138,41 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
 	SEC_PD(RSA,	0),
 };
 
-static struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc a4_pwrc_domains[] = {
+	SEC_PD(A4_AUDIO,	0),
+	SEC_PD(A4_SDIOA,	0),
+	SEC_PD(A4_EMMC,	0),
+	SEC_PD(A4_USB_COMB,	0),
+	SEC_PD(A4_ETH,		0),
+	SEC_PD(A4_VOUT,		0),
+	SEC_PD(A4_AUDIO_PDM,	0),
+	/* DMC is for DDR PHY ana/dig and DMC, and should be always on */
+	SEC_PD(A4_DMC,	GENPD_FLAG_ALWAYS_ON),
+	/* WRAP is secure_top, a lot of modules are included, and should be always on */
+	SEC_PD(A4_SYS_WRAP,	GENPD_FLAG_ALWAYS_ON),
+	SEC_PD(A4_AO_I2C_S,	0),
+	SEC_PD(A4_AO_UART,	0),
+	/* IR is wake up trigger source, and should be always on */
+	SEC_PD(A4_AO_IR,	GENPD_FLAG_ALWAYS_ON),
+};
+
+static const struct meson_secure_pwrc_domain_desc a5_pwrc_domains[] = {
+	SEC_PD(A5_NNA,		0),
+	SEC_PD(A5_AUDIO,	0),
+	SEC_PD(A5_SDIOA,	0),
+	SEC_PD(A5_EMMC,		0),
+	SEC_PD(A5_USB_COMB,	0),
+	SEC_PD(A5_ETH,		0),
+	SEC_PD(A5_RSA,		0),
+	SEC_PD(A5_AUDIO_PDM,	0),
+	/* DMC is for DDR PHY ana/dig and DMC, and should be always on */
+	SEC_PD(A5_DMC,		GENPD_FLAG_ALWAYS_ON),
+	/* WRAP is secure_top, a lot of modules are included, and should be always on */
+	SEC_PD(A5_SYS_WRAP,	GENPD_FLAG_ALWAYS_ON),
+	SEC_PD(A5_DSPA,		0),
+};
+
+static const struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
 	SEC_PD(C3_NNA,		0),
 	SEC_PD(C3_AUDIO,	0),
 	SEC_PD(C3_SDIOA,	0),
@@ -153,7 +189,7 @@ static struct meson_secure_pwrc_domain_desc c3_pwrc_domains[] = {
 	SEC_PD(C3_VCODEC,	0),
 };
 
-static struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
+static const 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),
@@ -165,7 +201,7 @@ static struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
 	SEC_PD(S4_AUDIO,	0),
 };
 
-static struct meson_secure_pwrc_domain_desc t7_pwrc_domains[] = {
+static const struct meson_secure_pwrc_domain_desc t7_pwrc_domains[] = {
 	SEC_PD(T7_DSPA,		0),
 	SEC_PD(T7_DSPB,		0),
 	TOP_PD(T7_DOS_HCODEC,	0, PWRC_T7_NIC3_ID),
@@ -311,6 +347,16 @@ 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 amlogic_secure_a4_pwrc_data = {
+	.domains = a4_pwrc_domains,
+	.count = ARRAY_SIZE(a4_pwrc_domains),
+};
+
+static struct meson_secure_pwrc_domain_data amlogic_secure_a5_pwrc_data = {
+	.domains = a5_pwrc_domains,
+	.count = ARRAY_SIZE(a5_pwrc_domains),
+};
+
 static struct meson_secure_pwrc_domain_data amlogic_secure_c3_pwrc_data = {
 	.domains = c3_pwrc_domains,
 	.count = ARRAY_SIZE(c3_pwrc_domains),
@@ -331,6 +377,14 @@ static const struct of_device_id meson_secure_pwrc_match_table[] = {
 		.compatible = "amlogic,meson-a1-pwrc",
 		.data = &meson_secure_a1_pwrc_data,
 	},
+	{
+		.compatible = "amlogic,a4-pwrc",
+		.data = &amlogic_secure_a4_pwrc_data,
+	},
+	{
+		.compatible = "amlogic,a5-pwrc",
+		.data = &amlogic_secure_a5_pwrc_data,
+	},
 	{
 		.compatible = "amlogic,c3-pwrc",
 		.data = &amlogic_secure_c3_pwrc_data,
@@ -355,4 +409,5 @@ static struct platform_driver meson_secure_pwrc_driver = {
 	},
 };
 module_platform_driver(meson_secure_pwrc_driver);
+MODULE_DESCRIPTION("Amlogic Meson Secure Power Domains driver");
 MODULE_LICENSE("Dual MIT/GPL");

drivers/pmdomain/arm/scmi_pm_domain.c

@@ -102,6 +102,7 @@ static int scmi_pm_domain_probe(struct scmi_device *sdev)
 		scmi_pd->genpd.name = scmi_pd->name;
 		scmi_pd->genpd.power_off = scmi_pd_power_off;
 		scmi_pd->genpd.power_on = scmi_pd_power_on;
+		scmi_pd->genpd.flags = GENPD_FLAG_ACTIVE_WAKEUP;
 
 		pm_genpd_init(&scmi_pd->genpd, NULL,
 			      state == SCMI_POWER_STATE_GENERIC_OFF);

drivers/pmdomain/core.c

@@ -588,6 +588,68 @@ void dev_pm_genpd_synced_poweroff(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(dev_pm_genpd_synced_poweroff);
 
+/**
+ * dev_pm_genpd_set_hwmode() - Set the HW mode for the device and its PM domain.
+ *
+ * @dev: Device for which the HW-mode should be changed.
+ * @enable: Value to set or unset the HW-mode.
+ *
+ * Some PM domains can rely on HW signals to control the power for a device. To
+ * allow a consumer driver to switch the behaviour for its device in runtime,
+ * which may be beneficial from a latency or energy point of view, this function
+ * may be called.
+ *
+ * It is assumed that the users guarantee that the genpd wouldn't be detached
+ * while this routine is getting called.
+ *
+ * Return: Returns 0 on success and negative error values on failures.
+ */
+int dev_pm_genpd_set_hwmode(struct device *dev, bool enable)
+{
+	struct generic_pm_domain *genpd;
+	int ret = 0;
+
+	genpd = dev_to_genpd_safe(dev);
+	if (!genpd)
+		return -ENODEV;
+
+	if (!genpd->set_hwmode_dev)
+		return -EOPNOTSUPP;
+
+	genpd_lock(genpd);
+
+	if (dev_gpd_data(dev)->hw_mode == enable)
+		goto out;
+
+	ret = genpd->set_hwmode_dev(genpd, dev, enable);
+	if (!ret)
+		dev_gpd_data(dev)->hw_mode = enable;
+
+out:
+	genpd_unlock(genpd);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_genpd_set_hwmode);
+
+/**
+ * dev_pm_genpd_get_hwmode() - Get the HW mode setting for the device.
+ *
+ * @dev: Device for which the current HW-mode setting should be fetched.
+ *
+ * This helper function allows consumer drivers to fetch the current HW mode
+ * setting of its the device.
+ *
+ * It is assumed that the users guarantee that the genpd wouldn't be detached
+ * while this routine is getting called.
+ *
+ * Return: Returns the HW mode setting of device from SW cached hw_mode.
+ */
+bool dev_pm_genpd_get_hwmode(struct device *dev)
+{
+	return dev_gpd_data(dev)->hw_mode;
+}
+EXPORT_SYMBOL_GPL(dev_pm_genpd_get_hwmode);
+
 static int _genpd_power_on(struct generic_pm_domain *genpd, bool timed)
 {
 	unsigned int state_idx = genpd->state_idx;
@@ -1687,6 +1749,8 @@ static int genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
 
 	gpd_data->cpu = genpd_get_cpu(genpd, base_dev);
 
+	gpd_data->hw_mode = genpd->get_hwmode_dev ? genpd->get_hwmode_dev(genpd, dev) : false;
+
 	ret = genpd->attach_dev ? genpd->attach_dev(genpd, dev) : 0;
 	if (ret)
 		goto out;
@@ -2079,7 +2143,7 @@ static void genpd_free_data(struct generic_pm_domain *genpd)
 
 static void genpd_lock_init(struct generic_pm_domain *genpd)
 {
-	if (genpd->flags & GENPD_FLAG_IRQ_SAFE) {
+	if (genpd_is_irq_safe(genpd)) {
 		spin_lock_init(&genpd->slock);
 		genpd->lock_ops = &genpd_spin_ops;
 	} else {
@@ -3120,6 +3184,15 @@ static void rtpm_status_str(struct seq_file *s, struct device *dev)
 	seq_printf(s, "%-25s  ", p);
 }
 
+static void mode_status_str(struct seq_file *s, struct device *dev)
+{
+	struct generic_pm_domain_data *gpd_data;
+
+	gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
+
+	seq_printf(s, "%20s", gpd_data->hw_mode ? "HW" : "SW");
+}
+
 static void perf_status_str(struct seq_file *s, struct device *dev)
 {
 	struct generic_pm_domain_data *gpd_data;
@@ -3178,6 +3251,7 @@ static int genpd_summary_one(struct seq_file *s,
 		seq_printf(s, "\n    %-50s  ", kobj_path);
 		rtpm_status_str(s, pm_data->dev);
 		perf_status_str(s, pm_data->dev);
+		mode_status_str(s, pm_data->dev);
 		kfree(kobj_path);
 	}
 
@@ -3194,8 +3268,8 @@ static int summary_show(struct seq_file *s, void *data)
 	int ret = 0;
 
 	seq_puts(s, "domain                          status          children                           performance\n");
-	seq_puts(s, "    /device                                             runtime status\n");
-	seq_puts(s, "----------------------------------------------------------------------------------------------\n");
+	seq_puts(s, "    /device                                             runtime status                           managed by\n");
+	seq_puts(s, "------------------------------------------------------------------------------------------------------------\n");
 
 	ret = mutex_lock_interruptible(&gpd_list_lock);
 	if (ret)

drivers/pmdomain/renesas/rmobile-sysc.c

@@ -268,9 +268,7 @@ static int __init rmobile_add_pm_domains(void __iomem *base,
 					 struct device_node *parent,
 					 struct generic_pm_domain *genpd_parent)
 {
-	struct device_node *np;
-
-	for_each_child_of_node(parent, np) {
+	for_each_child_of_node_scoped(parent, np) {
 		struct rmobile_pm_domain *pd;
 		u32 idx = ~0;
 
@@ -279,10 +277,8 @@ static int __init rmobile_add_pm_domains(void __iomem *base,
 		}
 
 		pd = kzalloc(sizeof(*pd), GFP_KERNEL);
-		if (!pd) {
-			of_node_put(np);
+		if (!pd)
 			return -ENOMEM;
-		}
 
 		pd->genpd.name = np->name;
 		pd->base = base;

include/dt-bindings/power/amlogic,a4-pwrc.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+#ifndef _DT_BINDINGS_AMLOGIC_A4_POWER_H
+#define _DT_BINDINGS_AMLOGIC_A4_POWER_H
+
+#define PWRC_A4_AUDIO_ID				0
+#define PWRC_A4_SDIOA_ID				1
+#define PWRC_A4_EMMC_ID					2
+#define PWRC_A4_USB_COMB_ID				3
+#define PWRC_A4_ETH_ID					4
+#define PWRC_A4_VOUT_ID					5
+#define PWRC_A4_AUDIO_PDM_ID				6
+#define PWRC_A4_DMC_ID					7
+#define PWRC_A4_SYS_WRAP_ID				8
+#define PWRC_A4_AO_I2C_S_ID				9
+#define PWRC_A4_AO_UART_ID				10
+#define PWRC_A4_AO_IR_ID				11
+
+#endif

include/dt-bindings/power/amlogic,a5-pwrc.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#ifndef _DT_BINDINGS_AMLOGIC_A5_POWER_H
+#define _DT_BINDINGS_AMLOGIC_A5_POWER_H
+
+#define PWRC_A5_NNA_ID			0
+#define PWRC_A5_AUDIO_ID		1
+#define PWRC_A5_SDIOA_ID		2
+#define PWRC_A5_EMMC_ID			3
+#define PWRC_A5_USB_COMB_ID		4
+#define PWRC_A5_ETH_ID			5
+#define PWRC_A5_RSA_ID			6
+#define PWRC_A5_AUDIO_PDM_ID		7
+#define PWRC_A5_DMC_ID			8
+#define PWRC_A5_SYS_WRAP_ID		9
+#define PWRC_A5_DSPA_ID			10
+
+#endif

include/linux/pm_domain.h

@@ -175,6 +175,10 @@ struct generic_pm_domain {
 	int (*set_performance_state)(struct generic_pm_domain *genpd,
 				     unsigned int state);
 	struct gpd_dev_ops dev_ops;
+	int (*set_hwmode_dev)(struct generic_pm_domain *domain,
+			      struct device *dev, bool enable);
+	bool (*get_hwmode_dev)(struct generic_pm_domain *domain,
+			      struct device *dev);
 	int (*attach_dev)(struct generic_pm_domain *domain,
 			  struct device *dev);
 	void (*detach_dev)(struct generic_pm_domain *domain,
@@ -237,6 +241,7 @@ struct generic_pm_domain_data {
 	unsigned int performance_state;
 	unsigned int default_pstate;
 	unsigned int rpm_pstate;
+	bool hw_mode;
 	void *data;
 };
 
@@ -267,6 +272,8 @@ int dev_pm_genpd_remove_notifier(struct device *dev);
 void dev_pm_genpd_set_next_wakeup(struct device *dev, ktime_t next);
 ktime_t dev_pm_genpd_get_next_hrtimer(struct device *dev);
 void dev_pm_genpd_synced_poweroff(struct device *dev);
+int dev_pm_genpd_set_hwmode(struct device *dev, bool enable);
+bool dev_pm_genpd_get_hwmode(struct device *dev);
 
 extern struct dev_power_governor simple_qos_governor;
 extern struct dev_power_governor pm_domain_always_on_gov;
@@ -340,6 +347,16 @@ static inline ktime_t dev_pm_genpd_get_next_hrtimer(struct device *dev)
 static inline void dev_pm_genpd_synced_poweroff(struct device *dev)
 { }
 
+static inline int dev_pm_genpd_set_hwmode(struct device *dev, bool enable)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline bool dev_pm_genpd_get_hwmode(struct device *dev)
+{
+	return false;
+}
+
 #define simple_qos_governor		(*(struct dev_power_governor *)(NULL))
 #define pm_domain_always_on_gov		(*(struct dev_power_governor *)(NULL))
 #endif