--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2021, Linaro Limited
+
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/delay.h>
+#include <linux/of_platform.h>
+#include <linux/jiffies.h>
+#include <linux/soc/qcom/apr.h>
+#include <dt-bindings/soc/qcom,gpr.h>
+#include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
+#include "q6prm.h"
+#include "audioreach.h"
+
+struct q6prm {
+ struct device *dev;
+ gpr_device_t *gdev;
+ wait_queue_head_t wait;
+ struct gpr_ibasic_rsp_result_t result;
+ struct mutex lock;
+};
+
+#define PRM_CMD_REQUEST_HW_RSC 0x0100100F
+#define PRM_CMD_RSP_REQUEST_HW_RSC 0x02001002
+#define PRM_CMD_RELEASE_HW_RSC 0x01001010
+#define PRM_CMD_RSP_RELEASE_HW_RSC 0x02001003
+#define PARAM_ID_RSC_HW_CORE 0x08001032
+#define PARAM_ID_RSC_LPASS_CORE 0x0800102B
+#define PARAM_ID_RSC_AUDIO_HW_CLK 0x0800102C
+
+struct prm_cmd_request_hw_core {
+ struct apm_module_param_data param_data;
+ uint32_t hw_clk_id;
+} __packed;
+
+struct prm_cmd_request_rsc {
+ struct apm_module_param_data param_data;
+ uint32_t num_clk_id;
+ struct audio_hw_clk_cfg clock_id;
+} __packed;
+
+static int q6prm_send_cmd_sync(struct q6prm *prm, struct gpr_pkt *pkt, uint32_t rsp_opcode)
+{
+ return audioreach_send_cmd_sync(prm->dev, prm->gdev, &prm->result, &prm->lock,
+ NULL, &prm->wait, pkt, rsp_opcode);
+}
+
+static int q6prm_set_hw_core_req(struct device *dev, uint32_t hw_block_id, bool enable)
+{
+ struct q6prm *prm = dev_get_drvdata(dev->parent);
+ struct apm_module_param_data *param_data;
+ struct prm_cmd_request_hw_core *req;
+ gpr_device_t *gdev = prm->gdev;
+ uint32_t opcode, rsp_opcode;
+ struct gpr_pkt *pkt;
+ int rc;
+
+ if (enable) {
+ opcode = PRM_CMD_REQUEST_HW_RSC;
+ rsp_opcode = PRM_CMD_RSP_REQUEST_HW_RSC;
+ } else {
+ opcode = PRM_CMD_RELEASE_HW_RSC;
+ rsp_opcode = PRM_CMD_RSP_RELEASE_HW_RSC;
+ }
+
+ pkt = audioreach_alloc_cmd_pkt(sizeof(*req), opcode, 0, gdev->svc.id, GPR_PRM_MODULE_IID);
+ if (IS_ERR(pkt))
+ return PTR_ERR(pkt);
+
+ req = (void *)pkt + GPR_HDR_SIZE + APM_CMD_HDR_SIZE;
+
+ param_data = &req->param_data;
+
+ param_data->module_instance_id = GPR_PRM_MODULE_IID;
+ param_data->error_code = 0;
+ param_data->param_id = PARAM_ID_RSC_HW_CORE;
+ param_data->param_size = sizeof(*req) - APM_MODULE_PARAM_DATA_SIZE;
+
+ req->hw_clk_id = hw_block_id;
+
+ rc = q6prm_send_cmd_sync(prm, pkt, rsp_opcode);
+
+ kfree(pkt);
+
+ return rc;
+}
+
+int q6prm_vote_lpass_core_hw(struct device *dev, uint32_t hw_block_id,
+ const char *client_name, uint32_t *client_handle)
+{
+ return q6prm_set_hw_core_req(dev, hw_block_id, true);
+
+}
+EXPORT_SYMBOL_GPL(q6prm_vote_lpass_core_hw);
+
+int q6prm_unvote_lpass_core_hw(struct device *dev, uint32_t hw_block_id, uint32_t client_handle)
+{
+ return q6prm_set_hw_core_req(dev, hw_block_id, false);
+}
+EXPORT_SYMBOL_GPL(q6prm_unvote_lpass_core_hw);
+
+int q6prm_set_lpass_clock(struct device *dev, int clk_id, int clk_attr, int clk_root,
+ unsigned int freq)
+{
+ struct q6prm *prm = dev_get_drvdata(dev->parent);
+ struct apm_module_param_data *param_data;
+ struct prm_cmd_request_rsc *req;
+ gpr_device_t *gdev = prm->gdev;
+ struct gpr_pkt *pkt;
+ int rc;
+
+ pkt = audioreach_alloc_cmd_pkt(sizeof(*req), PRM_CMD_REQUEST_HW_RSC, 0, gdev->svc.id,
+ GPR_PRM_MODULE_IID);
+ if (IS_ERR(pkt))
+ return PTR_ERR(pkt);
+
+ req = (void *)pkt + GPR_HDR_SIZE + APM_CMD_HDR_SIZE;
+
+ param_data = &req->param_data;
+
+ param_data->module_instance_id = GPR_PRM_MODULE_IID;
+ param_data->error_code = 0;
+ param_data->param_id = PARAM_ID_RSC_AUDIO_HW_CLK;
+ param_data->param_size = sizeof(*req) - APM_MODULE_PARAM_DATA_SIZE;
+
+ req->num_clk_id = 1;
+ req->clock_id.clock_id = clk_id;
+ req->clock_id.clock_freq = freq;
+ req->clock_id.clock_attri = clk_attr;
+ req->clock_id.clock_root = clk_root;
+
+ rc = q6prm_send_cmd_sync(prm, pkt, PRM_CMD_RSP_REQUEST_HW_RSC);
+
+ kfree(pkt);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(q6prm_set_lpass_clock);
+
+static int prm_callback(struct gpr_resp_pkt *data, void *priv, int op)
+{
+ gpr_device_t *gdev = priv;
+ struct q6prm *prm = dev_get_drvdata(&gdev->dev);
+ struct gpr_ibasic_rsp_result_t *result;
+ struct gpr_hdr *hdr = &data->hdr;
+
+ switch (hdr->opcode) {
+ case PRM_CMD_RSP_REQUEST_HW_RSC:
+ case PRM_CMD_RSP_RELEASE_HW_RSC:
+ result = data->payload;
+ prm->result.opcode = hdr->opcode;
+ prm->result.status = result->status;
+ wake_up(&prm->wait);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int prm_probe(gpr_device_t *gdev)
+{
+ struct device *dev = &gdev->dev;
+ struct q6prm *cc;
+
+ cc = devm_kzalloc(dev, sizeof(*cc), GFP_KERNEL);
+ if (!cc)
+ return -ENOMEM;
+
+ cc->dev = dev;
+ cc->gdev = gdev;
+ mutex_init(&cc->lock);
+ init_waitqueue_head(&cc->wait);
+ dev_set_drvdata(dev, cc);
+
+ return devm_of_platform_populate(dev);
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id prm_device_id[] = {
+ { .compatible = "qcom,q6prm" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, prm_device_id);
+#endif
+
+static gpr_driver_t prm_driver = {
+ .probe = prm_probe,
+ .gpr_callback = prm_callback,
+ .driver = {
+ .name = "qcom-prm",
+ .of_match_table = of_match_ptr(prm_device_id),
+ },
+};
+
+module_gpr_driver(prm_driver);
+MODULE_DESCRIPTION("Audio Process Manager");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __Q6PRM_H__
+#define __Q6PRM_H__
+
+/* Clock ID for Primary I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_PRI_MI2S_IBIT 0x100
+/* Clock ID for Primary I2S EBIT */
+#define Q6PRM_LPASS_CLK_ID_PRI_MI2S_EBIT 0x101
+/* Clock ID for Secondary I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_SEC_MI2S_IBIT 0x102
+/* Clock ID for Secondary I2S EBIT */
+#define Q6PRM_LPASS_CLK_ID_SEC_MI2S_EBIT 0x103
+/* Clock ID for Tertiary I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_TER_MI2S_IBIT 0x104
+/* Clock ID for Tertiary I2S EBIT */
+#define Q6PRM_LPASS_CLK_ID_TER_MI2S_EBIT 0x105
+/* Clock ID for Quartnery I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_QUAD_MI2S_IBIT 0x106
+/* Clock ID for Quartnery I2S EBIT */
+#define Q6PRM_LPASS_CLK_ID_QUAD_MI2S_EBIT 0x107
+/* Clock ID for Speaker I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_SPEAKER_I2S_IBIT 0x108
+/* Clock ID for Speaker I2S EBIT */
+#define Q6PRM_LPASS_CLK_ID_SPEAKER_I2S_EBIT 0x109
+/* Clock ID for Speaker I2S OSR */
+#define Q6PRM_LPASS_CLK_ID_SPEAKER_I2S_OSR 0x10A
+
+/* Clock ID for QUINARY I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_QUI_MI2S_IBIT 0x10B
+/* Clock ID for QUINARY I2S EBIT */
+#define Q6PRM_LPASS_CLK_ID_QUI_MI2S_EBIT 0x10C
+/* Clock ID for SENARY I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_SEN_MI2S_IBIT 0x10D
+/* Clock ID for SENARY I2S EBIT */
+#define Q6PRM_LPASS_CLK_ID_SEN_MI2S_EBIT 0x10E
+/* Clock ID for INT0 I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_INT0_MI2S_IBIT 0x10F
+/* Clock ID for INT1 I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_INT1_MI2S_IBIT 0x110
+/* Clock ID for INT2 I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_INT2_MI2S_IBIT 0x111
+/* Clock ID for INT3 I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_INT3_MI2S_IBIT 0x112
+/* Clock ID for INT4 I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_INT4_MI2S_IBIT 0x113
+/* Clock ID for INT5 I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_INT5_MI2S_IBIT 0x114
+/* Clock ID for INT6 I2S IBIT */
+#define Q6PRM_LPASS_CLK_ID_INT6_MI2S_IBIT 0x115
+
+/* Clock ID for QUINARY MI2S OSR CLK */
+#define Q6PRM_LPASS_CLK_ID_QUI_MI2S_OSR 0x116
+
+#define Q6PRM_LPASS_CLK_ID_WSA_CORE_MCLK 0x305
+#define Q6PRM_LPASS_CLK_ID_WSA_CORE_NPL_MCLK 0x306
+
+#define Q6PRM_LPASS_CLK_ID_VA_CORE_MCLK 0x307
+#define Q6PRM_LPASS_CLK_ID_VA_CORE_2X_MCLK 0x308
+
+#define Q6PRM_LPASS_CLK_ID_TX_CORE_MCLK 0x30c
+#define Q6PRM_LPASS_CLK_ID_TX_CORE_NPL_MCLK 0x30d
+
+#define Q6PRM_LPASS_CLK_ID_RX_CORE_MCLK 0x30e
+#define Q6PRM_LPASS_CLK_ID_RX_CORE_NPL_MCLK 0x30f
+
+#define Q6PRM_LPASS_CLK_SRC_INTERNAL 1
+#define Q6PRM_LPASS_CLK_ROOT_DEFAULT 0
+#define Q6PRM_HW_CORE_ID_LPASS 1
+#define Q6PRM_HW_CORE_ID_DCODEC 2
+
+int q6prm_set_lpass_clock(struct device *dev, int clk_id, int clk_attr,
+ int clk_root, unsigned int freq);
+int q6prm_vote_lpass_core_hw(struct device *dev, uint32_t hw_block_id,
+ const char *client_name, uint32_t *client_handle);
+int q6prm_unvote_lpass_core_hw(struct device *dev, uint32_t hw_block_id,
+ uint32_t client_handle);
+#endif /* __Q6PRM_H__ */
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