Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Rockchip AMP support.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2021 Rockchip Electronics Co. Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Author: Tony Xie <tony.xie@rock-chips.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/pm_domain.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/rockchip/rockchip_sip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #define RK_CPU_STATUS_OFF		0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #define RK_CPU_STATUS_ON		1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #define RK_CPU_STATUS_BUSY		-1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) enum amp_cpu_ctrl_status {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	AMP_CPU_STATUS_AMP_DIS = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	AMP_CPU_STATUS_EN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	AMP_CPU_STATUS_ON,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	AMP_CPU_STATUS_OFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define AMP_FLAG_CPU_ARM64		BIT(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define AMP_FLAG_CPU_EL2_HYP		BIT(2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define AMP_FLAG_CPU_ARM32_T		BIT(3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) struct rkamp_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct clk_bulk_data *clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	int num_clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	struct device **pd_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	int num_pds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) static struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	u32 en;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	u32 mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	u64 entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	u64 cpu_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) } cpu_boot_info[CONFIG_NR_CPUS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) static int get_cpu_boot_info_idx(unsigned long cpu_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	for (i = 0; i < CONFIG_NR_CPUS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		if (cpu_boot_info[i].cpu_id == cpu_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 			return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) static ssize_t boot_cpu_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 			     struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 			     char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	char *str = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	str += sprintf(str, "cpu on/off:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	str += sprintf(str,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		"         echo on/off [cpu id] > /sys/rk_amp/boot_cpu\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	str += sprintf(str, "get cpu on/off status:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	str += sprintf(str,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		"         echo status [cpu id] > /sys/rk_amp/boot_cpu\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	if (str != buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		*(str - 1) = '\n';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	return (str - buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) static void cpu_status_print(unsigned long cpu_id, struct arm_smccc_res *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	if (res->a0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		pr_info("get cpu-0x%lx status(%lx) error!\n", cpu_id, res->a0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	if (res->a1 == AMP_CPU_STATUS_AMP_DIS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		pr_info("cpu-0x%lx amp is disable (%ld)\n", cpu_id, res->a1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	else if (res->a1 == AMP_CPU_STATUS_EN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		pr_info("cpu-0x%lx amp is enable (%ld)\n", cpu_id, res->a1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	else if (res->a1 == AMP_CPU_STATUS_ON)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		pr_info("cpu-0x%lx amp: cpu is on (%ld)\n", cpu_id, res->a1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	else if (res->a1 == AMP_CPU_STATUS_OFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		pr_info("cpu-0x%lx amp: cpu is off(%ld)\n", cpu_id, res->a1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		pr_info("cpu-0x%lx status(%ld) is error\n", cpu_id, res->a1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	if (res->a2 == RK_CPU_STATUS_OFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		pr_info("cpu-0x%lx status(%ld) is off\n", cpu_id, res->a2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	else if (res->a2 == RK_CPU_STATUS_ON)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		pr_info("cpu-0x%lx status(%ld) is on\n", cpu_id, res->a2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	else if (res->a2 == RK_CPU_STATUS_BUSY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		pr_info("cpu-0x%lx status(%ld) is busy\n", cpu_id, res->a2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		pr_info("cpu-0x%lx status(%ld) is error\n", cpu_id, res->a2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static ssize_t boot_cpu_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 			      struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 			      const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 			      size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	char cmd[10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	unsigned long cpu_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	struct arm_smccc_res res = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	int ret, idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	ret = sscanf(buf, "%s", cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if (ret != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		pr_info("Use on/off [cpu id] or status [cpu id]\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	if (!strncmp(cmd, "status", strlen("status"))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		if (ret != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		res = sip_smc_get_amp_info(RK_AMP_SUB_FUNC_GET_CPU_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 					   cpu_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		cpu_status_print(cpu_id, &res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	} else if (!strncmp(cmd, "off", strlen("off"))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		if (ret != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		idx = get_cpu_boot_info_idx(cpu_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		if (idx >= 0 && cpu_boot_info[idx].en) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 			ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_REQ_CPU_OFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 						 cpu_id, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 			if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 				pr_info("requesting a cpu off is error(%d)!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 					ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	} else if (!strncmp(cmd, "on", strlen("on"))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		if (ret != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		idx = get_cpu_boot_info_idx(cpu_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		if (idx >= 0 && cpu_boot_info[idx].en) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CPU_ON,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 						 cpu_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 						 cpu_boot_info[idx].entry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 						 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 				pr_info("booting up a cpu is error(%d)!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 					ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		pr_info("unsupported cmd(%s)\n", cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static struct kobject *rk_amp_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) static struct device_attribute rk_amp_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	__ATTR(boot_cpu, 0664, boot_cpu_show, boot_cpu_store),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static int rockchip_amp_boot_cpus(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 				  struct device_node *cpu_node, int idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	u64 cpu_entry, cpu_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	u32 cpu_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	if (idx >= CONFIG_NR_CPUS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	if (of_property_read_u64_array(cpu_node, "entry", &cpu_entry, 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		dev_warn(dev, "can not get the entry\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	if (!cpu_entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		dev_warn(dev, "cpu-entry is 0\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	if (of_property_read_u64_array(cpu_node, "id", &cpu_id, 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		dev_warn(dev, "can not get the cpu id\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	if (of_property_read_u32_array(cpu_node, "mode", &cpu_mode, 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		dev_warn(dev, "can not get the cpu mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	cpu_boot_info[idx].entry = cpu_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	cpu_boot_info[idx].mode = cpu_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	cpu_boot_info[idx].cpu_id = cpu_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CFG_MODE, cpu_id, cpu_mode, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		dev_warn(dev, "setting cpu mode is error(%d)!\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CPU_ON, cpu_id, cpu_entry, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		dev_warn(dev, "booting up a cpu is error(%d)!\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	cpu_boot_info[idx].en = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static int rockchip_amp_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	struct rkamp_device *rkamp_dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	int ret, i, idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	struct device_node *cpus_node, *cpu_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	rkamp_dev = devm_kzalloc(&pdev->dev, sizeof(*rkamp_dev), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	if (!rkamp_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	rkamp_dev->num_clks = devm_clk_bulk_get_all(&pdev->dev, &rkamp_dev->clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	if (rkamp_dev->num_clks < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	ret = clk_bulk_prepare_enable(rkamp_dev->num_clks, rkamp_dev->clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		return dev_err_probe(&pdev->dev, ret, "failed to prepare enable clks: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	pm_runtime_enable(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	rkamp_dev->num_pds = of_count_phandle_with_args(pdev->dev.of_node, "power-domains",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 							"#power-domain-cells");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	if (rkamp_dev->num_pds > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		rkamp_dev->pd_dev = devm_kmalloc_array(&pdev->dev, rkamp_dev->num_pds,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 						       sizeof(*rkamp_dev->pd_dev), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		if (!rkamp_dev->pd_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 			return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		if (rkamp_dev->num_pds == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 			ret = pm_runtime_resume_and_get(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 			if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 				return dev_err_probe(&pdev->dev, ret,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 						     "failed to get power-domain\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 			for (i = 0; i < rkamp_dev->num_pds; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 				rkamp_dev->pd_dev[i] = dev_pm_domain_attach_by_id(&pdev->dev, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 				ret = pm_runtime_resume_and_get(rkamp_dev->pd_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 				if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 					return dev_err_probe(&pdev->dev, ret,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 							     "failed to get pd_dev[%d]\n", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	cpus_node = of_get_child_by_name(pdev->dev.of_node, "amp-cpus");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	if (cpus_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		for_each_available_child_of_node(cpus_node, cpu_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 			if (!rockchip_amp_boot_cpus(&pdev->dev, cpu_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 						    idx)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 				idx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	rk_amp_kobj = kobject_create_and_add("rk_amp", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	if (!rk_amp_kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	for (i = 0; i < ARRAY_SIZE(rk_amp_attrs); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		ret = sysfs_create_file(rk_amp_kobj, &rk_amp_attrs[i].attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 			return dev_err_probe(&pdev->dev, ret, "create file index %d error\n", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) static int rockchip_amp_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	struct rkamp_device *rkamp_dev = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	clk_bulk_disable_unprepare(rkamp_dev->num_clks, rkamp_dev->clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	if (rkamp_dev->num_pds == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 		pm_runtime_put_sync(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	} else if (rkamp_dev->num_pds > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		for (i = 0; i < rkamp_dev->num_pds; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 			pm_runtime_put_sync(rkamp_dev->pd_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 			dev_pm_domain_detach(rkamp_dev->pd_dev[i], true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 			rkamp_dev->pd_dev[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	pm_runtime_disable(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	for (i = 0; i < ARRAY_SIZE(rk_amp_attrs); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 		sysfs_remove_file(rk_amp_kobj, &rk_amp_attrs[i].attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	kobject_put(rk_amp_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) static const struct of_device_id rockchip_amp_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 		.compatible = "rockchip,amp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	{ /* sentinel */ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) MODULE_DEVICE_TABLE(of, rockchip_amp_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) static struct platform_driver rockchip_amp_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	.probe = rockchip_amp_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	.remove = rockchip_amp_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 		.name  = "rockchip-amp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 		.of_match_table = rockchip_amp_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) module_platform_driver(rockchip_amp_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) MODULE_DESCRIPTION("Rockchip AMP driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) MODULE_AUTHOR("Tony xie<tony.xie@rock-chips.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) MODULE_LICENSE("GPL");