From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800

---
 kernel/drivers/soc/rockchip/rockchip_amp.c |  459 ++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 388 insertions(+), 71 deletions(-)

diff --git a/kernel/drivers/soc/rockchip/rockchip_amp.c b/kernel/drivers/soc/rockchip/rockchip_amp.c
index 59cd030..6f5bdc6 100644
--- a/kernel/drivers/soc/rockchip/rockchip_amp.c
+++ b/kernel/drivers/soc/rockchip/rockchip_amp.c
@@ -6,6 +6,7 @@
  * Author: Tony Xie <tony.xie@rock-chips.com>
  */
 
+#include <asm/cputype.h>
 #include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -13,10 +14,19 @@
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
 #include <linux/rockchip/rockchip_sip.h>
+#include <soc/rockchip/rockchip_amp.h>
+#include <linux/irqchip/arm-gic-common.h>
 
 #define RK_CPU_STATUS_OFF		0
 #define RK_CPU_STATUS_ON		1
 #define RK_CPU_STATUS_BUSY		-1
+#define AMP_AFF_MAX_CLUSTER		4
+#define AMP_AFF_MAX_CPU			8
+#define GPIO_BANK_NUM			16
+#define GPIO_GROUP_PRIO_MAX		3
+
+#define MAX_GIC_SPI_NUM (1020)
+#define AMP_GIC_DBG(fmt, arg...)	do { if (0) { pr_warn(fmt, ##arg); } } while (0)
 
 enum amp_cpu_ctrl_status {
 	AMP_CPU_STATUS_AMP_DIS = 0,
@@ -43,6 +53,34 @@
 	u64 entry;
 	u64 cpu_id;
 } cpu_boot_info[CONFIG_NR_CPUS];
+
+struct amp_gpio_group_s {
+	u32 bank_id;
+	u32 prio;
+	u64 irq_aff[AMP_AFF_MAX_CPU];
+	u32 irq_id[AMP_AFF_MAX_CPU];
+	u32 en[AMP_AFF_MAX_CPU];
+};
+
+struct amp_irq_cfg_s {
+	u64 aff;
+	u32 prio;
+	u32 cpumask;
+	int amp_flag;
+} irqs_cfg[MAX_GIC_SPI_NUM];
+
+static struct amp_gic_ctrl_s {
+	enum gic_type gic_version;
+	u32 spis_num;
+	struct {
+		u32 aff;
+		u32 cpumask;
+		u32 flag;
+	} aff_to_cpumask[AMP_AFF_MAX_CLUSTER][AMP_AFF_MAX_CPU];
+	struct amp_irq_cfg_s irqs_cfg[MAX_GIC_SPI_NUM];
+	struct amp_gpio_group_s gpio_grp[GPIO_BANK_NUM][GPIO_GROUP_PRIO_MAX];
+	u32 gpio_banks;
+} amp_ctrl;
 
 static int get_cpu_boot_info_idx(unsigned long cpu_id)
 {
@@ -77,29 +115,29 @@
 static void cpu_status_print(unsigned long cpu_id, struct arm_smccc_res *res)
 {
 	if (res->a0) {
-		pr_info("get cpu-0x%lx status(%lx) error!\n", cpu_id, res->a0);
+		pr_info("failed to get cpu[%lx] status, ret=%lx!\n", cpu_id, res->a0);
 		return;
 	}
 
 	if (res->a1 == AMP_CPU_STATUS_AMP_DIS)
-		pr_info("cpu-0x%lx amp is disable (%ld)\n", cpu_id, res->a1);
+		pr_info("cpu[%lx] amp is disabled (%ld)\n", cpu_id, res->a1);
 	else if (res->a1 == AMP_CPU_STATUS_EN)
-		pr_info("cpu-0x%lx amp is enable (%ld)\n", cpu_id, res->a1);
+		pr_info("cpu[%lx] amp is enabled (%ld)\n", cpu_id, res->a1);
 	else if (res->a1 == AMP_CPU_STATUS_ON)
-		pr_info("cpu-0x%lx amp: cpu is on (%ld)\n", cpu_id, res->a1);
+		pr_info("cpu[%lx] amp: cpu is on (%ld)\n", cpu_id, res->a1);
 	else if (res->a1 == AMP_CPU_STATUS_OFF)
-		pr_info("cpu-0x%lx amp: cpu is off(%ld)\n", cpu_id, res->a1);
+		pr_info("cpu[%lx] amp: cpu is off(%ld)\n", cpu_id, res->a1);
 	else
-		pr_info("cpu-0x%lx status(%ld) is error\n", cpu_id, res->a1);
+		pr_info("cpu[%lx] amp status(%ld) is error\n", cpu_id, res->a1);
 
 	if (res->a2 == RK_CPU_STATUS_OFF)
-		pr_info("cpu-0x%lx status(%ld) is off\n", cpu_id, res->a2);
+		pr_info("cpu[%lx] status(%ld) is off\n", cpu_id, res->a2);
 	else if (res->a2 == RK_CPU_STATUS_ON)
-		pr_info("cpu-0x%lx status(%ld) is on\n", cpu_id, res->a2);
+		pr_info("cpu[%lx] status(%ld) is on\n", cpu_id, res->a2);
 	else if (res->a2 == RK_CPU_STATUS_BUSY)
-		pr_info("cpu-0x%lx status(%ld) is busy\n", cpu_id, res->a2);
+		pr_info("cpu[%lx] status(%ld) is busy\n", cpu_id, res->a2);
 	else
-		pr_info("cpu-0x%lx status(%ld) is error\n", cpu_id, res->a2);
+		pr_info("cpu[%lx] status(%ld) is error\n", cpu_id, res->a2);
 }
 
 static ssize_t boot_cpu_store(struct device *dev,
@@ -107,23 +145,23 @@
 			      const char *buf,
 			      size_t count)
 {
-	char cmd[10];
-	unsigned long cpu_id;
 	struct arm_smccc_res res = {0};
+	unsigned long cpu_id;
+	char cmd[10];
 	int ret, idx;
 
 	ret = sscanf(buf, "%s", cmd);
-	if (ret != 1)
+	if (ret != 1) {
+		pr_info("Use on/off [cpu id] or status [cpu id]\n");
 		return -EINVAL;
+	}
 
 	if (!strncmp(cmd, "status", strlen("status"))) {
 		ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
-
 		if (ret != 2)
 			return -EINVAL;
 
-		res = sip_smc_get_amp_info(RK_AMP_SUB_FUNC_GET_CPU_STATUS,
-					   cpu_id);
+		res = sip_smc_get_amp_info(RK_AMP_SUB_FUNC_GET_CPU_STATUS, cpu_id);
 		cpu_status_print(cpu_id, &res);
 	} else if (!strncmp(cmd, "off", strlen("off"))) {
 		ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
@@ -131,17 +169,14 @@
 			return -EINVAL;
 
 		idx = get_cpu_boot_info_idx(cpu_id);
-
 		if (idx >= 0 && cpu_boot_info[idx].en) {
 			ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_REQ_CPU_OFF,
 						 cpu_id, 0, 0);
 			if (ret)
-				pr_info("requesting a cpu off is error(%d)!\n",
-					ret);
+				dev_warn(dev, "failed to request cpu[%lx] off, ret=%d!\n", cpu_id, ret);
 		}
 	} else if (!strncmp(cmd, "on", strlen("on"))) {
 		ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
-
 		if (ret != 2)
 			return -EINVAL;
 
@@ -152,11 +187,14 @@
 						 cpu_boot_info[idx].entry,
 						 0);
 			if (ret)
-				pr_info("booting up a cpu is error(%d)!\n",
-					ret);
+				dev_warn(dev, "Brought up cpu[%lx] failed, ret=%d\n", cpu_id, ret);
+			else
+				pr_info("Brought up cpu[%lx] ok.\n", cpu_id);
+		} else {
+			dev_warn(dev, "cpu[%lx] is unavailable\n", cpu_id);
 		}
 	} else {
-		pr_info("unsupported cmd(%s)\n", cmd);
+		dev_warn(dev, "unsupported cmd(%s)\n", cmd);
 	}
 
 	return count;
@@ -171,31 +209,34 @@
 				  struct device_node *cpu_node, int idx)
 {
 	u64 cpu_entry, cpu_id;
-	u32 cpu_mode;
+	u32 cpu_mode, boot_on;
 	int ret;
 
 	if (idx >= CONFIG_NR_CPUS)
 		return -1;
 
+	if (of_property_read_u64_array(cpu_node, "id", &cpu_id, 1)) {
+		dev_warn(dev, "failed to get 'id'\n");
+		return -1;
+	}
+
 	if (of_property_read_u64_array(cpu_node, "entry", &cpu_entry, 1)) {
-		dev_warn(dev, "can not get the entry\n");
+		dev_warn(dev, "failed to get cpu[%llx] 'entry'\n", cpu_id);
 		return -1;
 	}
 
 	if (!cpu_entry) {
-		dev_warn(dev, "cpu-entry is 0\n");
-		return -1;
-	}
-
-	if (of_property_read_u64_array(cpu_node, "id", &cpu_id, 1)) {
-		dev_warn(dev, "can not get the cpu id\n");
+		dev_warn(dev, "invalid cpu[%llx] 'entry': 0\n", cpu_id);
 		return -1;
 	}
 
 	if (of_property_read_u32_array(cpu_node, "mode", &cpu_mode, 1)) {
-		dev_warn(dev, "can not get the cpu mode\n");
+		dev_warn(dev, "failed to get cpu[%llx] 'mode'\n", cpu_id);
 		return -1;
 	}
+
+	if (of_property_read_u32_array(cpu_node, "boot-on", &boot_on, 1))
+		boot_on = 1; /* compatible old action */
 
 	cpu_boot_info[idx].entry = cpu_entry;
 	cpu_boot_info[idx].mode = cpu_mode;
@@ -203,14 +244,18 @@
 
 	ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CFG_MODE, cpu_id, cpu_mode, 0);
 	if (ret) {
-		dev_warn(dev, "setting cpu mode is error(%d)!\n", ret);
+		dev_warn(dev, "failed to set cpu mode, ret=%d\n", ret);
 		return ret;
 	}
 
-	ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CPU_ON, cpu_id, cpu_entry, 0);
-	if (ret) {
-		dev_warn(dev, "booting up a cpu is error(%d)!\n", ret);
-		return ret;
+	if (boot_on) {
+		ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CPU_ON, cpu_id, cpu_entry, 0);
+		if (ret) {
+			dev_warn(dev, "Brought up cpu[%llx] failed, ret=%d\n", cpu_id, ret);
+			return ret;
+		} else {
+			pr_info("Brought up cpu[%llx] ok.\n", cpu_id);
+		}
 	}
 
 	cpu_boot_info[idx].en = 1;
@@ -218,11 +263,289 @@
 	return 0;
 }
 
+int rockchip_amp_check_amp_irq(u32 irq)
+{
+	return amp_ctrl.irqs_cfg[irq].amp_flag;
+}
+
+u32 rockchip_amp_get_irq_prio(u32 irq)
+{
+	return amp_ctrl.irqs_cfg[irq].prio;
+}
+
+u32 rockchip_amp_get_irq_cpumask(u32 irq)
+{
+	return amp_ctrl.irqs_cfg[irq].cpumask;
+}
+
+int rockchip_amp_need_init_amp_irq(u32 irq)
+{
+	return amp_ctrl.irqs_cfg[irq].amp_flag;
+}
+
+static u32 amp_get_cpumask_bit(u64 aff)
+{
+	u32 aff_cluster, aff_cpu;
+
+	aff_cluster = MPIDR_AFFINITY_LEVEL(aff, 1);
+	aff_cpu = MPIDR_AFFINITY_LEVEL(aff, 0);
+
+	if (aff_cpu >= AMP_AFF_MAX_CPU || aff_cluster >= AMP_AFF_MAX_CLUSTER)
+		return 0;
+
+	AMP_GIC_DBG("  %s: aff:%d-%d: %x\n", __func__, aff_cluster, aff_cpu,
+		    amp_ctrl.aff_to_cpumask[aff_cluster][aff_cpu].cpumask);
+
+	return amp_ctrl.aff_to_cpumask[aff_cluster][aff_cpu].cpumask;
+}
+
+u64 rockchip_amp_get_irq_aff(u32 irq)
+{
+	return amp_ctrl.irqs_cfg[irq].aff;
+}
+
+static int gic_amp_get_gpio_prio_group_info(struct device_node *np,
+					    struct amp_gic_ctrl_s *amp_ctrl,
+					    int prio_id)
+{
+	u32 gpio_bank, prio, irq_id;
+	u64 irq_aff;
+	int i, count0, count1;
+	struct amp_gpio_group_s *gpio_grp;
+	struct amp_irq_cfg_s *irqs_cfg;
+
+	if (prio_id >= GPIO_GROUP_PRIO_MAX)
+		return -EINVAL;
+
+	if (of_property_read_u32_array(np, "gpio-bank", &gpio_bank, 1))
+		return -EINVAL;
+	if (gpio_bank >= amp_ctrl->gpio_banks)
+		return -EINVAL;
+
+	gpio_grp = &amp_ctrl->gpio_grp[gpio_bank][prio_id];
+
+	if (of_property_read_u32_array(np, "prio", &prio, 1))
+		return -EINVAL;
+
+	if (gpio_bank >= GPIO_BANK_NUM)
+		return -EINVAL;
+
+	AMP_GIC_DBG("%s: gpio-%d, group prio:%d-%x\n",
+		    __func__, gpio_bank, prio_id, prio);
+
+	count0 = of_property_count_u32_elems(np, "girq-id");
+	count1 = of_property_count_u64_elems(np, "girq-aff");
+
+	if (count0 != count1)
+		return -EINVAL;
+
+	gpio_grp->prio = prio;
+
+	for (i = 0; i < count0; i++) {
+		of_property_read_u32_index(np, "girq-id", i, &irq_id);
+		gpio_grp->irq_id[i] = irq_id;
+		of_property_read_u64_index(np, "girq-aff", i, &irq_aff);
+
+		gpio_grp->irq_aff[i] = irq_aff;
+
+		of_property_read_u32_index(np, "girq-en", i, &gpio_grp->en[i]);
+
+		irqs_cfg = &amp_ctrl->irqs_cfg[irq_id];
+
+		AMP_GIC_DBG(" %s: group cpu-%d, irq-%d: prio-%x, aff-%llx en-%d\n",
+			    __func__, i, gpio_grp->irq_id[i], gpio_grp->prio,
+			    gpio_grp->irq_aff[i], gpio_grp->en[i]);
+
+		if (gpio_grp->en[i]) {
+			irqs_cfg->prio = gpio_grp->prio;
+			irqs_cfg->aff = irq_aff;
+			if (amp_ctrl->gic_version == GIC_V2) {
+				irqs_cfg->cpumask = amp_get_cpumask_bit(irq_aff);
+				if (!irqs_cfg->cpumask) {
+					pr_err(" %s: get cpumask error\n", __func__);
+					return -EINVAL;
+				}
+			}
+			irqs_cfg->amp_flag = 1;
+		}
+
+		AMP_GIC_DBG("  %s: prio-%x aff-%llx cpumaks-%x flag-%d\n",
+			    __func__, irqs_cfg->prio, irqs_cfg->aff,
+			    irqs_cfg->cpumask, irqs_cfg->amp_flag);
+	}
+
+	return 0;
+}
+
+static int gic_amp_gpio_group_get_info(struct device_node *group_node,
+				       struct amp_gic_ctrl_s *amp_ctrl,
+				       int idx)
+{
+	int i = 0;
+	struct device_node *node;
+
+	if (group_node) {
+		for_each_available_child_of_node(group_node, node) {
+			if (i >= GPIO_GROUP_PRIO_MAX)
+				break;
+			if (!gic_amp_get_gpio_prio_group_info(node, amp_ctrl,
+							      i)) {
+				i++;
+			}
+		}
+	}
+	return 0;
+}
+
+static void gic_of_get_gpio_group(struct device_node *np,
+				  struct amp_gic_ctrl_s *amp_ctrl)
+{
+	struct device_node *gpio_group_node, *node;
+	int i = 0;
+
+	if (of_property_read_u32_array(np, "gpio-group-banks",
+				       &amp_ctrl->gpio_banks, 1))
+		return;
+
+	gpio_group_node = of_get_child_by_name(np, "gpio-group");
+	if (gpio_group_node) {
+		for_each_available_child_of_node(gpio_group_node, node) {
+			if (i >= amp_ctrl->gpio_banks)
+				break;
+			if (!gic_amp_gpio_group_get_info(node, amp_ctrl, i))
+				i++;
+		}
+	}
+
+	of_node_put(gpio_group_node);
+}
+
+static int amp_gic_get_cpumask(struct device_node *np, struct amp_gic_ctrl_s *amp_ctrl)
+{
+	const struct property *prop;
+	int count, i;
+	u32 cluster, aff_cpu;
+	u64 aff, cpumask;
+
+	if (amp_ctrl->gic_version != GIC_V2)
+		return 0;
+	prop = of_find_property(np, "amp-cpu-aff-maskbits", NULL);
+
+	if (!prop)
+		return -1;
+
+	if (!prop->value)
+		return -1;
+
+	count = of_property_count_u64_elems(np, "amp-cpu-aff-maskbits");
+	if (count % 2)
+		return -1;
+
+	for (i = 0; i < count / 2; i++) {
+		of_property_read_u64_index(np, "amp-cpu-aff-maskbits",
+					   2 * i, &aff);
+		cluster = MPIDR_AFFINITY_LEVEL(aff, 1);
+		aff_cpu = MPIDR_AFFINITY_LEVEL(aff, 0);
+		amp_ctrl->aff_to_cpumask[cluster][aff_cpu].aff = aff;
+
+		of_property_read_u64_index(np, "amp-cpu-aff-maskbits",
+					   2 * i + 1, &cpumask);
+
+		amp_ctrl->aff_to_cpumask[cluster][aff_cpu].cpumask = (u32)cpumask;
+
+		AMP_GIC_DBG("cpumask: %d-%d: aff-%llx cpumask-%d\n",
+			    cluster, aff_cpu, aff, (u32)cpumask);
+
+		if (!cpumask)
+			return -1;
+	}
+
+	return 0;
+}
+
+static void amp_gic_get_irqs_config(struct device_node *np,
+				    struct amp_gic_ctrl_s *amp_ctrl)
+{
+	const struct property *prop;
+	u32 irq, i;
+	int count;
+	u64 aff, val, prio;
+
+	prop = of_find_property(np, "amp-irqs", NULL);
+	if (!prop)
+		return;
+
+	if (!prop->value)
+		return;
+
+	count = of_property_count_u64_elems(np, "amp-irqs");
+
+	if (count % 3)
+		return;
+
+	for (i = 0; i < count / 3; i++) {
+		of_property_read_u64_index(np, "amp-irqs", 3 * i, &val);
+		irq = (u32)val;
+		if (irq > amp_ctrl->spis_num)
+			break;
+
+		of_property_read_u64_index(np, "amp-irqs", 3 * i + 1, &prio);
+		of_property_read_u64_index(np, "amp-irqs", 3 * i + 2, &aff);
+
+		AMP_GIC_DBG("%s: irq-%d aff-%llx prio-%llx\n",
+			    __func__, irq, aff, prio);
+
+		amp_ctrl->irqs_cfg[irq].prio = (u32)prio;
+		amp_ctrl->irqs_cfg[irq].aff = aff;
+		if (amp_ctrl->gic_version == GIC_V2) {
+			amp_ctrl->irqs_cfg[irq].cpumask = amp_get_cpumask_bit(aff);
+			if (!amp_ctrl->irqs_cfg[irq].cpumask) {
+				pr_err("%s: get cpumask error\n", __func__);
+				break;
+			}
+		}
+
+		if (!amp_ctrl->irqs_cfg[irq].aff &&
+		    !amp_ctrl->irqs_cfg[irq].prio)
+			break;
+
+		amp_ctrl->irqs_cfg[irq].amp_flag = 1;
+
+		AMP_GIC_DBG(" %s: irq-%d aff-%llx cpumask-%x pri-%x\n",
+			    __func__, irq, amp_ctrl->irqs_cfg[irq].aff,
+			    amp_ctrl->irqs_cfg[irq].cpumask,
+			    amp_ctrl->irqs_cfg[irq].prio);
+	}
+}
+
+void rockchip_amp_get_gic_info(u32 spis_num, enum gic_type gic_version)
+{
+	struct device_node *np;
+
+	amp_ctrl.spis_num = spis_num;
+	amp_ctrl.gic_version = gic_version;
+
+	np = of_find_node_by_name(NULL, "rockchip-amp");
+	if (!np)
+		return;
+
+	if (amp_gic_get_cpumask(np, &amp_ctrl)) {
+		pr_err("%s: get amp gic cpu mask error\n", __func__);
+		goto exit;
+	}
+
+	gic_of_get_gpio_group(np, &amp_ctrl);
+	amp_gic_get_irqs_config(np, &amp_ctrl);
+
+exit:
+	of_node_put(np);
+}
+
 static int rockchip_amp_probe(struct platform_device *pdev)
 {
-	struct rkamp_device *rkamp_dev = NULL;
-	int ret, i, idx = 0;
 	struct device_node *cpus_node, *cpu_node;
+	struct rkamp_device *rkamp_dev;
+	int ret, i, idx = 0;
 
 	rkamp_dev = devm_kzalloc(&pdev->dev, sizeof(*rkamp_dev), GFP_KERNEL);
 	if (!rkamp_dev)
@@ -231,50 +554,46 @@
 	rkamp_dev->num_clks = devm_clk_bulk_get_all(&pdev->dev, &rkamp_dev->clks);
 	if (rkamp_dev->num_clks < 0)
 		return -ENODEV;
+
 	ret = clk_bulk_prepare_enable(rkamp_dev->num_clks, rkamp_dev->clks);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to prepare enable clks: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "failed to prepare enable clks: %d\n", ret);
 
 	pm_runtime_enable(&pdev->dev);
 
-	rkamp_dev->num_pds = of_count_phandle_with_args(pdev->dev.of_node, "power-domains",
-							"#power-domain-cells");
-
+	rkamp_dev->num_pds =
+		of_count_phandle_with_args(pdev->dev.of_node, "power-domains",
+					   "#power-domain-cells");
 	if (rkamp_dev->num_pds > 0) {
-		rkamp_dev->pd_dev = devm_kmalloc_array(&pdev->dev, rkamp_dev->num_pds,
-						       sizeof(*rkamp_dev->pd_dev), GFP_KERNEL);
+		rkamp_dev->pd_dev =
+			devm_kmalloc_array(&pdev->dev, rkamp_dev->num_pds,
+					   sizeof(*rkamp_dev->pd_dev), GFP_KERNEL);
 		if (!rkamp_dev->pd_dev)
 			return -ENOMEM;
 
 		if (rkamp_dev->num_pds == 1) {
-			ret = pm_runtime_get_sync(&pdev->dev);
-			if (ret < 0) {
-				dev_err(&pdev->dev, "failed to get power-domain\n");
-				return ret;
-			}
+			ret = pm_runtime_resume_and_get(&pdev->dev);
+			if (ret < 0)
+				return dev_err_probe(&pdev->dev, ret,
+						     "failed to get power-domain\n");
 		} else {
 			for (i = 0; i < rkamp_dev->num_pds; i++) {
 				rkamp_dev->pd_dev[i] = dev_pm_domain_attach_by_id(&pdev->dev, i);
-				ret = pm_runtime_get_sync(rkamp_dev->pd_dev[i]);
-				if (ret < 0) {
-					dev_err(&pdev->dev, "failed to get pd_dev[%d]\n", i);
-					return ret;
-				}
+				ret = pm_runtime_resume_and_get(rkamp_dev->pd_dev[i]);
+				if (ret < 0)
+					return dev_err_probe(&pdev->dev, ret,
+							     "failed to get pd_dev[%d]\n", i);
 			}
 		}
 	}
 
 	cpus_node = of_get_child_by_name(pdev->dev.of_node, "amp-cpus");
-
 	if (cpus_node) {
 		for_each_available_child_of_node(cpus_node, cpu_node) {
-			if (!rockchip_amp_boot_cpus(&pdev->dev, cpu_node,
-						    idx)) {
+			if (!rockchip_amp_boot_cpus(&pdev->dev, cpu_node, idx))
 				idx++;
-			}
 		}
+		of_node_put(cpus_node);
 	}
 
 	rk_amp_kobj = kobject_create_and_add("rk_amp", NULL);
@@ -283,10 +602,8 @@
 
 	for (i = 0; i < ARRAY_SIZE(rk_amp_attrs); i++) {
 		ret = sysfs_create_file(rk_amp_kobj, &rk_amp_attrs[i].attr);
-		if (ret) {
-			dev_err(&pdev->dev, "create file index %d error\n", i);
-			return ret;
-		}
+		if (ret)
+			return dev_err_probe(&pdev->dev, ret, "create file index %d error\n", i);
 	}
 
 	return 0;
@@ -294,8 +611,8 @@
 
 static int rockchip_amp_remove(struct platform_device *pdev)
 {
-	int i;
 	struct rkamp_device *rkamp_dev = platform_get_drvdata(pdev);
+	int i;
 
 	clk_bulk_disable_unprepare(rkamp_dev->num_clks, rkamp_dev->clks);
 
@@ -320,9 +637,9 @@
 }
 
 static const struct of_device_id rockchip_amp_match[] = {
-	{
-		.compatible = "rockchip,rk3568-amp",
-	},
+	{ .compatible = "rockchip,amp" },
+	{ .compatible = "rockchip,mcu-amp" },
+	{ .compatible = "rockchip,rk3568-amp" },
 	{ /* sentinel */ },
 };
 
@@ -340,4 +657,4 @@
 
 MODULE_DESCRIPTION("Rockchip AMP driver");
 MODULE_AUTHOR("Tony xie<tony.xie@rock-chips.com>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");

--
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