Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "This contains platform-related driver updates for ARM and ARM64.

  Highlights:

   - ARM SCMI (System Control & Management Interface) driver cleanups

   - Hisilicon support for LPC bus w/ ACPI

   - Reset driver updates for several platforms: Uniphier,

   - Rockchip power domain bindings and hardware descriptions for
     several SoCs.

   - Tegra memory controller reset improvements"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (59 commits)
  ARM: tegra: fix compile-testing PCI host driver
  soc: rockchip: power-domain: add power domain support for px30
  dt-bindings: power: add binding for px30 power domains
  dt-bindings: power: add PX30 SoCs header for power-domain
  soc: rockchip: power-domain: add power domain support for rk3228
  dt-bindings: power: add binding for rk3228 power domains
  dt-bindings: power: add RK3228 SoCs header for power-domain
  soc: rockchip: power-domain: add power domain support for rk3128
  dt-bindings: power: add binding for rk3128 power domains
  dt-bindings: power: add RK3128 SoCs header for power-domain
  soc: rockchip: power-domain: add power domain support for rk3036
  dt-bindings: power: add binding for rk3036 power domains
  dt-bindings: power: add RK3036 SoCs header for power-domain
  dt-bindings: memory: tegra: Remove Tegra114 SATA and AFI reset definitions
  memory: tegra: Remove Tegra114 SATA and AFI reset definitions
  memory: tegra: Register SMMU after MC driver became ready
  soc: mediatek: remove unneeded semicolon
  soc: mediatek: add a fixed wait for SRAM stable
  soc: mediatek: introduce a CAPS flag for scp_domain_data
  soc: mediatek: reuse regmap_read_poll_timeout helpers
  ...

9 files changed, 275 insertions, 272 deletions

diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c
index c4d35f32af8d..32f0748fd067 100644
--- a/drivers/soc/imx/gpc.c
+++ b/drivers/soc/imx/gpc.c
@@ -443,17 +443,25 @@ static int imx_gpc_probe(struct platform_device *pdev)
 			if (domain_index >= of_id_data->num_domains)
 				continue;
 
-			domain = &imx_gpc_domains[domain_index];
-			domain->regmap = regmap;
-			domain->ipg_rate_mhz = ipg_rate_mhz;
-
 			pd_pdev = platform_device_alloc("imx-pgc-power-domain",
 							domain_index);
 			if (!pd_pdev) {
 				of_node_put(np);
 				return -ENOMEM;
 			}
-			pd_pdev->dev.platform_data = domain;
+
+			ret = platform_device_add_data(pd_pdev,
+						       &imx_gpc_domains[domain_index],
+						       sizeof(imx_gpc_domains[domain_index]));
+			if (ret) {
+				platform_device_put(pd_pdev);
+				of_node_put(np);
+				return ret;
+			}
+			domain = pd_pdev->dev.platform_data;
+			domain->regmap = regmap;
+			domain->ipg_rate_mhz = ipg_rate_mhz;
+
 			pd_pdev->dev.parent = &pdev->dev;
 			pd_pdev->dev.of_node = np;
 
diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index afc7ecc3c187..f4e3bd40c72e 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -155,7 +155,7 @@ static int imx7_gpc_pu_pgc_sw_pdn_req(struct generic_pm_domain *genpd)
 	return imx7_gpc_pu_pgc_sw_pxx_req(genpd, false);
 }
 
-static struct imx7_pgc_domain imx7_pgc_domains[] = {
+static const struct imx7_pgc_domain imx7_pgc_domains[] = {
 	[IMX7_POWER_DOMAIN_MIPI_PHY] = {
 		.genpd = {
 			.name      = "mipi-phy",
@@ -321,11 +321,6 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
 			continue;
 		}
 
-		domain = &imx7_pgc_domains[domain_index];
-		domain->regmap = regmap;
-		domain->genpd.power_on  = imx7_gpc_pu_pgc_sw_pup_req;
-		domain->genpd.power_off = imx7_gpc_pu_pgc_sw_pdn_req;
-
 		pd_pdev = platform_device_alloc("imx7-pgc-domain",
 						domain_index);
 		if (!pd_pdev) {
@@ -334,7 +329,20 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
 			return -ENOMEM;
 		}
 
-		pd_pdev->dev.platform_data = domain;
+		ret = platform_device_add_data(pd_pdev,
+					       &imx7_pgc_domains[domain_index],
+					       sizeof(imx7_pgc_domains[domain_index]));
+		if (ret) {
+			platform_device_put(pd_pdev);
+			of_node_put(np);
+			return ret;
+		}
+
+		domain = pd_pdev->dev.platform_data;
+		domain->regmap = regmap;
+		domain->genpd.power_on  = imx7_gpc_pu_pgc_sw_pup_req;
+		domain->genpd.power_off = imx7_gpc_pu_pgc_sw_pdn_req;
+
 		pd_pdev->dev.parent = dev;
 		pd_pdev->dev.of_node = np;
 
diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
index 8c310de01e93..958861c9e6ee 100644
--- a/drivers/soc/mediatek/mtk-infracfg.c
+++ b/drivers/soc/mediatek/mtk-infracfg.c
@@ -17,6 +17,9 @@
 #include <linux/soc/mediatek/infracfg.h>
 #include <asm/processor.h>
 
+#define MTK_POLL_DELAY_US   10
+#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
+
 #define INFRA_TOPAXI_PROTECTEN		0x0220
 #define INFRA_TOPAXI_PROTECTSTA1	0x0228
 #define INFRA_TOPAXI_PROTECTEN_SET	0x0260
@@ -37,7 +40,6 @@
 int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	u32 val;
 	int ret;
 
@@ -47,22 +49,11 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if ((val & mask) == mask)
-			break;
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, (val & mask) == mask,
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
-
-	return 0;
+	return ret;
 }
 
 /**
@@ -80,30 +71,17 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	int ret;
+	u32 val;
 
 	if (reg_update)
 		regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		u32 val;
-
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if (!(val & mask))
-			break;
-
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, !(val & mask),
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-	return 0;
+	return ret;
 }
diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index e9e054a15b7d..2afae64061d8 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -1458,19 +1458,12 @@ static int pwrap_probe(struct platform_device *pdev)
 	int ret, irq;
 	struct pmic_wrapper *wrp;
 	struct device_node *np = pdev->dev.of_node;
-	const struct of_device_id *of_id =
-		of_match_device(of_pwrap_match_tbl, &pdev->dev);
 	const struct of_device_id *of_slave_id = NULL;
 	struct resource *res;
 
-	if (!of_id) {
-		dev_err(&pdev->dev, "Error: No device match found\n");
-		return -ENODEV;
-	}
+	if (np->child)
+		of_slave_id = of_match_node(of_slave_match_tbl, np->child);
 
-	if (pdev->dev.of_node->child)
-		of_slave_id = of_match_node(of_slave_match_tbl,
-					    pdev->dev.of_node->child);
 	if (!of_slave_id) {
 		dev_dbg(&pdev->dev, "slave pmic should be defined in dts\n");
 		return -EINVAL;
@@ -1482,7 +1475,7 @@ static int pwrap_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, wrp);
 
-	wrp->master = of_id->data;
+	wrp->master = of_device_get_match_data(&pdev->dev);
 	wrp->slave = of_slave_id->data;
 	wrp->dev = &pdev->dev;
 
diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
index d762a46d434f..128e3dd3186d 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -13,6 +13,7 @@
 #include <linux/clk.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/mfd/syscon.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
@@ -27,6 +28,13 @@
 #include <dt-bindings/power/mt7623a-power.h>
 #include <dt-bindings/power/mt8173-power.h>
 
+#define MTK_POLL_DELAY_US   10
+#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
+
+#define MTK_SCPD_ACTIVE_WAKEUP		BIT(0)
+#define MTK_SCPD_FWAIT_SRAM		BIT(1)
+#define MTK_SCPD_CAPS(_scpd, _x)	((_scpd)->data->caps & (_x))
+
 #define SPM_VDE_PWR_CON			0x0210
 #define SPM_MFG_PWR_CON			0x0214
 #define SPM_VEN_PWR_CON			0x0230
@@ -116,7 +124,7 @@ struct scp_domain_data {
 	u32 sram_pdn_ack_bits;
 	u32 bus_prot_mask;
 	enum clk_id clk_id[MAX_CLKS];
-	bool active_wakeup;
+	u8 caps;
 };
 
 struct scp;
@@ -184,12 +192,10 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
 {
 	struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
 	struct scp *scp = scpd->scp;
-	unsigned long timeout;
-	bool expired;
 	void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
-	u32 sram_pdn_ack = scpd->data->sram_pdn_ack_bits;
+	u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
 	u32 val;
-	int ret;
+	int ret, tmp;
 	int i;
 
 	if (scpd->supply) {
@@ -215,23 +221,10 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
 	writel(val, ctl_addr);
 
 	/* wait until PWR_ACK = 1 */
-	timeout = jiffies + HZ;
-	expired = false;
-	while (1) {
-		ret = scpsys_domain_is_on(scpd);
-		if (ret > 0)
-			break;
-
-		if (expired) {
-			ret = -ETIMEDOUT;
-			goto err_pwr_ack;
-		}
-
-		cpu_relax();
-
-		if (time_after(jiffies, timeout))
-			expired = true;
-	}
+	ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp > 0,
+				 MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+	if (ret < 0)
+		goto err_pwr_ack;
 
 	val &= ~PWR_CLK_DIS_BIT;
 	writel(val, ctl_addr);
@@ -245,20 +238,20 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
 	val &= ~scpd->data->sram_pdn_bits;
 	writel(val, ctl_addr);
 
-	/* wait until SRAM_PDN_ACK all 0 */
-	timeout = jiffies + HZ;
-	expired = false;
-	while (sram_pdn_ack && (readl(ctl_addr) & sram_pdn_ack)) {
+	/* Either wait until SRAM_PDN_ACK all 0 or have a force wait */
+	if (MTK_SCPD_CAPS(scpd, MTK_SCPD_FWAIT_SRAM)) {
+		/*
+		 * Currently, MTK_SCPD_FWAIT_SRAM is necessary only for
+		 * MT7622_POWER_DOMAIN_WB and thus just a trivial setup is
+		 * applied here.
+		 */
+		usleep_range(12000, 12100);
 
-		if (expired) {
-			ret = -ETIMEDOUT;
+	} else {
+		ret = readl_poll_timeout(ctl_addr, tmp, (tmp & pdn_ack) == 0,
+					 MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+		if (ret < 0)
 			goto err_pwr_ack;
-		}
-
-		cpu_relax();
-
-		if (time_after(jiffies, timeout))
-			expired = true;
 	}
 
 	if (scpd->data->bus_prot_mask) {
@@ -289,12 +282,10 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
 {
 	struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
 	struct scp *scp = scpd->scp;
-	unsigned long timeout;
-	bool expired;
 	void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
 	u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
 	u32 val;
-	int ret;
+	int ret, tmp;
 	int i;
 
 	if (scpd->data->bus_prot_mask) {
@@ -310,19 +301,10 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
 	writel(val, ctl_addr);
 
 	/* wait until SRAM_PDN_ACK all 1 */
-	timeout = jiffies + HZ;
-	expired = false;
-	while (pdn_ack && (readl(ctl_addr) & pdn_ack) != pdn_ack) {
-		if (expired) {
-			ret = -ETIMEDOUT;
-			goto out;
-		}
-
-		cpu_relax();
-
-		if (time_after(jiffies, timeout))
-			expired = true;
-	}
+	ret = readl_poll_timeout(ctl_addr, tmp, (tmp & pdn_ack) == pdn_ack,
+				 MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+	if (ret < 0)
+		goto out;
 
 	val |= PWR_ISO_BIT;
 	writel(val, ctl_addr);
@@ -340,23 +322,10 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
 	writel(val, ctl_addr);
 
 	/* wait until PWR_ACK = 0 */
-	timeout = jiffies + HZ;
-	expired = false;
-	while (1) {
-		ret = scpsys_domain_is_on(scpd);
-		if (ret == 0)
-			break;
-
-		if (expired) {
-			ret = -ETIMEDOUT;
-			goto out;
-		}
-
-		cpu_relax();
-
-		if (time_after(jiffies, timeout))
-			expired = true;
-	}
+	ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp == 0,
+				 MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+	if (ret < 0)
+		goto out;
 
 	for (i = 0; i < MAX_CLKS && scpd->clk[i]; i++)
 		clk_disable_unprepare(scpd->clk[i]);
@@ -469,7 +438,7 @@ static struct scp *init_scp(struct platform_device *pdev,
 		genpd->name = data->name;
 		genpd->power_off = scpsys_power_off;
 		genpd->power_on = scpsys_power_on;
-		if (scpd->data->active_wakeup)
+		if (MTK_SCPD_CAPS(scpd, MTK_SCPD_ACTIVE_WAKEUP))
 			genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP;
 	}
 
@@ -522,7 +491,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
 				 MT2701_TOP_AXI_PROT_EN_CONN_S,
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_DISP] = {
 		.name = "disp",
@@ -531,7 +500,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.clk_id = {CLK_MM},
 		.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_MM_M0,
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_MFG] = {
 		.name = "mfg",
@@ -540,7 +509,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.clk_id = {CLK_MFG},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_VDEC] = {
 		.name = "vdec",
@@ -549,7 +518,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.clk_id = {CLK_MM},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_ISP] = {
 		.name = "isp",
@@ -558,7 +527,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 		.clk_id = {CLK_MM},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_BDP] = {
 		.name = "bdp",
@@ -566,7 +535,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.ctl_offs = SPM_BDP_PWR_CON,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_ETH] = {
 		.name = "eth",
@@ -575,7 +544,7 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_ETHIF},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_HIF] = {
 		.name = "hif",
@@ -584,14 +553,14 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_ETHIF},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2701_POWER_DOMAIN_IFR_MSC] = {
 		.name = "ifr_msc",
 		.sta_mask = PWR_STATUS_IFR_MSC,
 		.ctl_offs = SPM_IFR_MSC_PWR_CON,
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 };
 
@@ -606,7 +575,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.clk_id = {CLK_MM},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_VDEC] = {
 		.name = "vdec",
@@ -615,7 +584,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.clk_id = {CLK_MM, CLK_VDEC},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_VENC] = {
 		.name = "venc",
@@ -624,7 +593,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_MM, CLK_VENC, CLK_JPGDEC},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_ISP] = {
 		.name = "isp",
@@ -633,7 +602,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 		.clk_id = {CLK_MM},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_AUDIO] = {
 		.name = "audio",
@@ -642,7 +611,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_AUDIO},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_USB] = {
 		.name = "usb",
@@ -651,7 +620,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(10, 8),
 		.sram_pdn_ack_bits = GENMASK(14, 12),
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_USB2] = {
 		.name = "usb2",
@@ -660,7 +629,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(10, 8),
 		.sram_pdn_ack_bits = GENMASK(14, 12),
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_MFG] = {
 		.name = "mfg",
@@ -670,7 +639,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_ack_bits = GENMASK(16, 16),
 		.clk_id = {CLK_MFG},
 		.bus_prot_mask = BIT(14) | BIT(21) | BIT(23),
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_MFG_SC1] = {
 		.name = "mfg_sc1",
@@ -679,7 +648,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(16, 16),
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_MFG_SC2] = {
 		.name = "mfg_sc2",
@@ -688,7 +657,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(16, 16),
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT2712_POWER_DOMAIN_MFG_SC3] = {
 		.name = "mfg_sc3",
@@ -697,7 +666,7 @@ static const struct scp_domain_data scp_domain_data_mt2712[] = {
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(16, 16),
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 };
 
@@ -797,7 +766,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_NONE},
 		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_ETHSYS,
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT7622_POWER_DOMAIN_HIF0] = {
 		.name = "hif0",
@@ -807,7 +776,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_HIFSEL},
 		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF0,
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT7622_POWER_DOMAIN_HIF1] = {
 		.name = "hif1",
@@ -817,7 +786,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_HIFSEL},
 		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF1,
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT7622_POWER_DOMAIN_WB] = {
 		.name = "wb",
@@ -827,7 +796,7 @@ static const struct scp_domain_data scp_domain_data_mt7622[] = {
 		.sram_pdn_ack_bits = 0,
 		.clk_id = {CLK_NONE},
 		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_WB,
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP | MTK_SCPD_FWAIT_SRAM,
 	},
 };
 
@@ -843,7 +812,7 @@ static const struct scp_domain_data scp_domain_data_mt7623a[] = {
 		.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
 				 MT2701_TOP_AXI_PROT_EN_CONN_S,
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT7623A_POWER_DOMAIN_ETH] = {
 		.name = "eth",
@@ -852,7 +821,7 @@ static const struct scp_domain_data scp_domain_data_mt7623a[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_ETHIF},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT7623A_POWER_DOMAIN_HIF] = {
 		.name = "hif",
@@ -861,14 +830,14 @@ static const struct scp_domain_data scp_domain_data_mt7623a[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_ETHIF},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT7623A_POWER_DOMAIN_IFR_MSC] = {
 		.name = "ifr_msc",
 		.sta_mask = PWR_STATUS_IFR_MSC,
 		.ctl_offs = SPM_IFR_MSC_PWR_CON,
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 };
 
@@ -934,7 +903,7 @@ static const struct scp_domain_data scp_domain_data_mt8173[] = {
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.clk_id = {CLK_NONE},
-		.active_wakeup = true,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
 	},
 	[MT8173_POWER_DOMAIN_MFG_ASYNC] = {
 		.name = "mfg_async",
@@ -1067,15 +1036,13 @@ static const struct of_device_id of_scpsys_match_tbl[] = {
 
 static int scpsys_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *match;
 	const struct scp_subdomain *sd;
 	const struct scp_soc_data *soc;
 	struct scp *scp;
 	struct genpd_onecell_data *pd_data;
 	int i, ret;
 
-	match = of_match_device(of_scpsys_match_tbl, &pdev->dev);
-	soc = (const struct scp_soc_data *)match->data;
+	soc = of_device_get_match_data(&pdev->dev);
 
 	scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs,
 			soc->bus_prot_reg_update);
diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index f874baaf934c..6dff8682155f 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -19,6 +19,10 @@
 #include <linux/clk.h>
 #include <linux/regmap.h>
 #include <linux/mfd/syscon.h>
+#include <dt-bindings/power/px30-power.h>
+#include <dt-bindings/power/rk3036-power.h>
+#include <dt-bindings/power/rk3128-power.h>
+#include <dt-bindings/power/rk3228-power.h>
 #include <dt-bindings/power/rk3288-power.h>
 #include <dt-bindings/power/rk3328-power.h>
 #include <dt-bindings/power/rk3366-power.h>
@@ -104,6 +108,18 @@ struct rockchip_pmu {
 	.active_wakeup = wakeup,			\
 }
 
+#define DOMAIN_RK3036(req, ack, idle, wakeup)		\
+{							\
+	.req_mask = (req >= 0) ? BIT(req) : 0,		\
+	.req_w_mask = (req >= 0) ?  BIT(req + 16) : 0,	\
+	.ack_mask = (ack >= 0) ? BIT(ack) : 0,		\
+	.idle_mask = (idle >= 0) ? BIT(idle) : 0,	\
+	.active_wakeup = wakeup,			\
+}
+
+#define DOMAIN_PX30(pwr, status, req, wakeup)		\
+	DOMAIN_M(pwr, status, req, (req) + 16, req, wakeup)
+
 #define DOMAIN_RK3288(pwr, status, req, wakeup)		\
 	DOMAIN(pwr, status, req, req, (req) + 16, wakeup)
 
@@ -256,7 +272,7 @@ static void rockchip_do_pmu_set_power_domain(struct rockchip_pm_domain *pd,
 		return;
 	else if (pd->info->pwr_w_mask)
 		regmap_write(pmu->regmap, pmu->info->pwr_offset,
-			     on ? pd->info->pwr_mask :
+			     on ? pd->info->pwr_w_mask :
 			     (pd->info->pwr_mask | pd->info->pwr_w_mask));
 	else
 		regmap_update_bits(pmu->regmap, pmu->info->pwr_offset,
@@ -700,6 +716,49 @@ err_out:
 	return error;
 }
 
+static const struct rockchip_domain_info px30_pm_domains[] = {
+	[PX30_PD_USB]		= DOMAIN_PX30(5, 5, 10, false),
+	[PX30_PD_SDCARD]	= DOMAIN_PX30(8, 8, 9, false),
+	[PX30_PD_GMAC]		= DOMAIN_PX30(10, 10, 6, false),
+	[PX30_PD_MMC_NAND]	= DOMAIN_PX30(11, 11, 5, false),
+	[PX30_PD_VPU]		= DOMAIN_PX30(12, 12, 14, false),
+	[PX30_PD_VO]		= DOMAIN_PX30(13, 13, 7, false),
+	[PX30_PD_VI]		= DOMAIN_PX30(14, 14, 8, false),
+	[PX30_PD_GPU]		= DOMAIN_PX30(15, 15, 2, false),
+};
+
+static const struct rockchip_domain_info rk3036_pm_domains[] = {
+	[RK3036_PD_MSCH]	= DOMAIN_RK3036(14, 23, 30, true),
+	[RK3036_PD_CORE]	= DOMAIN_RK3036(13, 17, 24, false),
+	[RK3036_PD_PERI]	= DOMAIN_RK3036(12, 18, 25, false),
+	[RK3036_PD_VIO]		= DOMAIN_RK3036(11, 19, 26, false),
+	[RK3036_PD_VPU]		= DOMAIN_RK3036(10, 20, 27, false),
+	[RK3036_PD_GPU]		= DOMAIN_RK3036(9, 21, 28, false),
+	[RK3036_PD_SYS]		= DOMAIN_RK3036(8, 22, 29, false),
+};
+
+static const struct rockchip_domain_info rk3128_pm_domains[] = {
+	[RK3128_PD_CORE]	= DOMAIN_RK3288(0, 0, 4, false),
+	[RK3128_PD_MSCH]	= DOMAIN_RK3288(-1, -1, 6, true),
+	[RK3128_PD_VIO]		= DOMAIN_RK3288(3, 3, 2, false),
+	[RK3128_PD_VIDEO]	= DOMAIN_RK3288(2, 2, 1, false),
+	[RK3128_PD_GPU]		= DOMAIN_RK3288(1, 1, 3, false),
+};
+
+static const struct rockchip_domain_info rk3228_pm_domains[] = {
+	[RK3228_PD_CORE]	= DOMAIN_RK3036(0, 0, 16, true),
+	[RK3228_PD_MSCH]	= DOMAIN_RK3036(1, 1, 17, true),
+	[RK3228_PD_BUS]		= DOMAIN_RK3036(2, 2, 18, true),
+	[RK3228_PD_SYS]		= DOMAIN_RK3036(3, 3, 19, true),
+	[RK3228_PD_VIO]		= DOMAIN_RK3036(4, 4, 20, false),
+	[RK3228_PD_VOP]		= DOMAIN_RK3036(5, 5, 21, false),
+	[RK3228_PD_VPU]		= DOMAIN_RK3036(6, 6, 22, false),
+	[RK3228_PD_RKVDEC]	= DOMAIN_RK3036(7, 7, 23, false),
+	[RK3228_PD_GPU]		= DOMAIN_RK3036(8, 8, 24, false),
+	[RK3228_PD_PERI]	= DOMAIN_RK3036(9, 9, 25, true),
+	[RK3228_PD_GMAC]	= DOMAIN_RK3036(10, 10, 26, false),
+};
+
 static const struct rockchip_domain_info rk3288_pm_domains[] = {
 	[RK3288_PD_VIO]		= DOMAIN_RK3288(7, 7, 4, false),
 	[RK3288_PD_HEVC]	= DOMAIN_RK3288(14, 10, 9, false),
@@ -767,6 +826,46 @@ static const struct rockchip_domain_info rk3399_pm_domains[] = {
 	[RK3399_PD_SDIOAUDIO]	= DOMAIN_RK3399(31, 31, 29, true),
 };
 
+static const struct rockchip_pmu_info px30_pmu = {
+	.pwr_offset = 0x18,
+	.status_offset = 0x20,
+	.req_offset = 0x64,
+	.idle_offset = 0x6c,
+	.ack_offset = 0x6c,
+
+	.num_domains = ARRAY_SIZE(px30_pm_domains),
+	.domain_info = px30_pm_domains,
+};
+
+static const struct rockchip_pmu_info rk3036_pmu = {
+	.req_offset = 0x148,
+	.idle_offset = 0x14c,
+	.ack_offset = 0x14c,
+
+	.num_domains = ARRAY_SIZE(rk3036_pm_domains),
+	.domain_info = rk3036_pm_domains,
+};
+
+static const struct rockchip_pmu_info rk3128_pmu = {
+	.pwr_offset = 0x04,
+	.status_offset = 0x08,
+	.req_offset = 0x0c,
+	.idle_offset = 0x10,
+	.ack_offset = 0x10,
+
+	.num_domains = ARRAY_SIZE(rk3128_pm_domains),
+	.domain_info = rk3128_pm_domains,
+};
+
+static const struct rockchip_pmu_info rk3228_pmu = {
+	.req_offset = 0x40c,
+	.idle_offset = 0x488,
+	.ack_offset = 0x488,
+
+	.num_domains = ARRAY_SIZE(rk3228_pm_domains),
+	.domain_info = rk3228_pm_domains,
+};
+
 static const struct rockchip_pmu_info rk3288_pmu = {
 	.pwr_offset = 0x08,
 	.status_offset = 0x0c,
@@ -842,6 +941,22 @@ static const struct rockchip_pmu_info rk3399_pmu = {
 
 static const struct of_device_id rockchip_pm_domain_dt_match[] = {
 	{
+		.compatible = "rockchip,px30-power-controller",
+		.data = (void *)&px30_pmu,
+	},
+	{
+		.compatible = "rockchip,rk3036-power-controller",
+		.data = (void *)&rk3036_pmu,
+	},
+	{
+		.compatible = "rockchip,rk3128-power-controller",
+		.data = (void *)&rk3128_pmu,
+	},
+	{
+		.compatible = "rockchip,rk3228-power-controller",
+		.data = (void *)&rk3228_pmu,
+	},
+	{
 		.compatible = "rockchip,rk3288-power-controller",
 		.data = (void *)&rk3288_pmu,
 	},
diff --git a/drivers/soc/samsung/pm_domains.c b/drivers/soc/samsung/pm_domains.c
index caf45cf7aa8e..ab8582971bfc 100644
--- a/drivers/soc/samsung/pm_domains.c
+++ b/drivers/soc/samsung/pm_domains.c
@@ -13,14 +13,11 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/pm_domain.h>
-#include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/sched.h>
 
-#define MAX_CLK_PER_DOMAIN	4
-
 struct exynos_pm_domain_config {
 	/* Value for LOCAL_PWR_CFG and STATUS fields for each domain */
 	u32 local_pwr_cfg;
@@ -33,10 +30,6 @@ struct exynos_pm_domain {
 	void __iomem *base;
 	bool is_off;
 	struct generic_pm_domain pd;
-	struct clk *oscclk;
-	struct clk *clk[MAX_CLK_PER_DOMAIN];
-	struct clk *pclk[MAX_CLK_PER_DOMAIN];
-	struct clk *asb_clk[MAX_CLK_PER_DOMAIN];
 	u32 local_pwr_cfg;
 };
 
@@ -46,29 +39,10 @@ static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on)
 	void __iomem *base;
 	u32 timeout, pwr;
 	char *op;
-	int i;
 
 	pd = container_of(domain, struct exynos_pm_domain, pd);
 	base = pd->base;
 
-	for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) {
-		if (IS_ERR(pd->asb_clk[i]))
-			break;
-		clk_prepare_enable(pd->asb_clk[i]);
-	}
-
-	/* Set oscclk before powering off a domain*/
-	if (!power_on) {
-		for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) {
-			if (IS_ERR(pd->clk[i]))
-				break;
-			pd->pclk[i] = clk_get_parent(pd->clk[i]);
-			if (clk_set_parent(pd->clk[i], pd->oscclk))
-				pr_err("%s: error setting oscclk as parent to clock %d\n",
-						domain->name, i);
-		}
-	}
-
 	pwr = power_on ? pd->local_pwr_cfg : 0;
 	writel_relaxed(pwr, base);
 
@@ -86,26 +60,6 @@ static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on)
 		usleep_range(80, 100);
 	}
 
-	/* Restore clocks after powering on a domain*/
-	if (power_on) {
-		for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) {
-			if (IS_ERR(pd->clk[i]))
-				break;
-
-			if (IS_ERR(pd->pclk[i]))
-				continue; /* Skip on first power up */
-			if (clk_set_parent(pd->clk[i], pd->pclk[i]))
-				pr_err("%s: error setting parent to clock%d\n",
-						domain->name, i);
-		}
-	}
-
-	for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) {
-		if (IS_ERR(pd->asb_clk[i]))
-			break;
-		clk_disable_unprepare(pd->asb_clk[i]);
-	}
-
 	return 0;
 }
 
@@ -147,12 +101,6 @@ static __init const char *exynos_get_domain_name(struct device_node *node)
 	return kstrdup_const(name, GFP_KERNEL);
 }
 
-static const char *soc_force_no_clk[] = {
-	"samsung,exynos5250-clock",
-	"samsung,exynos5420-clock",
-	"samsung,exynos5800-clock",
-};
-
 static __init int exynos4_pm_init_power_domain(void)
 {
 	struct device_node *np;
@@ -161,7 +109,7 @@ static __init int exynos4_pm_init_power_domain(void)
 	for_each_matching_node_and_match(np, exynos_pm_domain_of_match, &match) {
 		const struct exynos_pm_domain_config *pm_domain_cfg;
 		struct exynos_pm_domain *pd;
-		int on, i;
+		int on;
 
 		pm_domain_cfg = match->data;
 
@@ -189,42 +137,6 @@ static __init int exynos4_pm_init_power_domain(void)
 		pd->pd.power_on = exynos_pd_power_on;
 		pd->local_pwr_cfg = pm_domain_cfg->local_pwr_cfg;
 
-		for (i = 0; i < ARRAY_SIZE(soc_force_no_clk); i++)
-			if (of_find_compatible_node(NULL, NULL,
-						    soc_force_no_clk[i]))
-				goto no_clk;
-
-		for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) {
-			char clk_name[8];
-
-			snprintf(clk_name, sizeof(clk_name), "asb%d", i);
-			pd->asb_clk[i] = of_clk_get_by_name(np, clk_name);
-			if (IS_ERR(pd->asb_clk[i]))
-				break;
-		}
-
-		pd->oscclk = of_clk_get_by_name(np, "oscclk");
-		if (IS_ERR(pd->oscclk))
-			goto no_clk;
-
-		for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) {
-			char clk_name[8];
-
-			snprintf(clk_name, sizeof(clk_name), "clk%d", i);
-			pd->clk[i] = of_clk_get_by_name(np, clk_name);
-			if (IS_ERR(pd->clk[i]))
-				break;
-			/*
-			 * Skip setting parent on first power up.
-			 * The parent at this time may not be useful at all.
-			 */
-			pd->pclk[i] = ERR_PTR(-EINVAL);
-		}
-
-		if (IS_ERR(pd->clk[0]))
-			clk_put(pd->oscclk);
-
-no_clk:
 		on = readl_relaxed(pd->base + 0x4) & pd->local_pwr_cfg;
 
 		pm_genpd_init(&pd->pd, NULL, !on);
diff --git a/drivers/soc/ti/knav_qmss.h b/drivers/soc/ti/knav_qmss.h
index 56866ba4cfc4..3efc47e82973 100644
--- a/drivers/soc/ti/knav_qmss.h
+++ b/drivers/soc/ti/knav_qmss.h
@@ -19,6 +19,8 @@
 #ifndef __KNAV_QMSS_H__
 #define __KNAV_QMSS_H__
 
+#include <linux/percpu.h>
+
 #define THRESH_GTE	BIT(7)
 #define THRESH_LT	0
 
@@ -162,11 +164,11 @@ struct knav_qmgr_info {
  * notifies:			notifier counts
  */
 struct knav_queue_stats {
-	atomic_t	 pushes;
-	atomic_t	 pops;
-	atomic_t	 push_errors;
-	atomic_t	 pop_errors;
-	atomic_t	 notifies;
+	unsigned int pushes;
+	unsigned int pops;
+	unsigned int push_errors;
+	unsigned int pop_errors;
+	unsigned int notifies;
 };
 
 /**
@@ -283,7 +285,7 @@ struct knav_queue_inst {
 struct knav_queue {
 	struct knav_reg_queue __iomem	*reg_push, *reg_pop, *reg_peek;
 	struct knav_queue_inst		*inst;
-	struct knav_queue_stats	stats;
+	struct knav_queue_stats __percpu	*stats;
 	knav_queue_notify_fn		notifier_fn;
 	void				*notifier_fn_arg;
 	atomic_t			notifier_enabled;
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 419365a8d1c2..6755f2af5619 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -99,7 +99,7 @@ void knav_queue_notify(struct knav_queue_inst *inst)
 			continue;
 		if (WARN_ON(!qh->notifier_fn))
 			continue;
-		atomic_inc(&qh->stats.notifies);
+		this_cpu_inc(qh->stats->notifies);
 		qh->notifier_fn(qh->notifier_fn_arg);
 	}
 	rcu_read_unlock();
@@ -230,6 +230,12 @@ static struct knav_queue *__knav_queue_open(struct knav_queue_inst *inst,
 	if (!qh)
 		return ERR_PTR(-ENOMEM);
 
+	qh->stats = alloc_percpu(struct knav_queue_stats);
+	if (!qh->stats) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
 	qh->flags = flags;
 	qh->inst = inst;
 	id = inst->id - inst->qmgr->start_queue;
@@ -245,13 +251,17 @@ static struct knav_queue *__knav_queue_open(struct knav_queue_inst *inst,
 		if (range->ops && range->ops->open_queue)
 			ret = range->ops->open_queue(range, inst, flags);
 
-		if (ret) {
-			devm_kfree(inst->kdev->dev, qh);
-			return ERR_PTR(ret);
-		}
+		if (ret)
+			goto err;
 	}
 	list_add_tail_rcu(&qh->list, &inst->handles);
 	return qh;
+
+err:
+	if (qh->stats)
+		free_percpu(qh->stats);
+	devm_kfree(inst->kdev->dev, qh);
+	return ERR_PTR(ret);
 }
 
 static struct knav_queue *
@@ -427,6 +437,12 @@ static void knav_queue_debug_show_instance(struct seq_file *s,
 {
 	struct knav_device *kdev = inst->kdev;
 	struct knav_queue *qh;
+	int cpu = 0;
+	int pushes = 0;
+	int pops = 0;
+	int push_errors = 0;
+	int pop_errors = 0;
+	int notifies = 0;
 
 	if (!knav_queue_is_busy(inst))
 		return;
@@ -434,19 +450,22 @@ static void knav_queue_debug_show_instance(struct seq_file *s,
 	seq_printf(s, "\tqueue id %d (%s)\n",
 		   kdev->base_id + inst->id, inst->name);
 	for_each_handle_rcu(qh, inst) {
-		seq_printf(s, "\t\thandle %p: ", qh);
-		seq_printf(s, "pushes %8d, ",
-			   atomic_read(&qh->stats.pushes));
-		seq_printf(s, "pops %8d, ",
-			   atomic_read(&qh->stats.pops));
-		seq_printf(s, "count %8d, ",
-			   knav_queue_get_count(qh));
-		seq_printf(s, "notifies %8d, ",
-			   atomic_read(&qh->stats.notifies));
-		seq_printf(s, "push errors %8d, ",
-			   atomic_read(&qh->stats.push_errors));
-		seq_printf(s, "pop errors %8d\n",
-			   atomic_read(&qh->stats.pop_errors));
+		for_each_possible_cpu(cpu) {
+			pushes += per_cpu_ptr(qh->stats, cpu)->pushes;
+			pops += per_cpu_ptr(qh->stats, cpu)->pops;
+			push_errors += per_cpu_ptr(qh->stats, cpu)->push_errors;
+			pop_errors += per_cpu_ptr(qh->stats, cpu)->pop_errors;
+			notifies += per_cpu_ptr(qh->stats, cpu)->notifies;
+		}
+
+		seq_printf(s, "\t\thandle %p: pushes %8d, pops %8d, count %8d, notifies %8d, push errors %8d, pop errors %8d\n",
+				qh,
+				pushes,
+				pops,
+				knav_queue_get_count(qh),
+				notifies,
+				push_errors,
+				pop_errors);
 	}
 }
 
@@ -563,6 +582,7 @@ void knav_queue_close(void *qhandle)
 		if (range->ops && range->ops->close_queue)
 			range->ops->close_queue(range, inst);
 	}
+	free_percpu(qh->stats);
 	devm_kfree(inst->kdev->dev, qh);
 }
 EXPORT_SYMBOL_GPL(knav_queue_close);
@@ -636,7 +656,7 @@ int knav_queue_push(void *qhandle, dma_addr_t dma,
 	val = (u32)dma | ((size / 16) - 1);
 	writel_relaxed(val, &qh->reg_push[0].ptr_size_thresh);
 
-	atomic_inc(&qh->stats.pushes);
+	this_cpu_inc(qh->stats->pushes);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(knav_queue_push);
@@ -674,7 +694,7 @@ dma_addr_t knav_queue_pop(void *qhandle, unsigned *size)
 	if (size)
 		*size = ((val & DESC_SIZE_MASK) + 1) * 16;
 
-	atomic_inc(&qh->stats.pops);
+	this_cpu_inc(qh->stats->pops);
 	return dma;
 }
 EXPORT_SYMBOL_GPL(knav_queue_pop);