diff mbox series

[v2,12/16] ASoC: qcom: audioreach: add q6prm support

Message ID 20210714153039.28373-13-srinivas.kandagatla@linaro.org (mailing list archive)
State Superseded
Headers show
Series ASoC: qcom: Add AudioReach support | expand

Commit Message

Srinivas Kandagatla July 14, 2021, 3:30 p.m. UTC 
Add support to q6prm (Proxy Resource Manager) module used for clock resources

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 sound/soc/qcom/Kconfig             |   4 +
 sound/soc/qcom/audioreach/Makefile |   2 +
 sound/soc/qcom/audioreach/q6prm.c  | 414 +++++++++++++++++++++++++++++
 3 files changed, 420 insertions(+)
 create mode 100644 sound/soc/qcom/audioreach/q6prm.c

Comments

Pierre-Louis Bossart July 14, 2021, 5:09 p.m. UTC | #1 
> +static int q6prm_send_cmd_sync(struct q6prm *prm, struct gpr_pkt *pkt,
> +			uint32_t rsp_opcode)
> +{
> +	gpr_device_t *gdev = prm->gdev;
> +	struct gpr_hdr *hdr = &pkt->hdr;
> +	int rc;
> +
> +	mutex_lock(&prm->lock);
> +	prm->result.opcode = 0;
> +	prm->result.status = 0;
> +
> +	rc = gpr_send_pkt(prm->gdev, pkt);
> +	if (rc < 0)
> +		goto err;
> +
> +	if (rsp_opcode)
> +		rc = wait_event_timeout(prm->wait,
> +					(prm->result.opcode == hdr->opcode) ||
> +					(prm->result.opcode == rsp_opcode),
> +					5 * HZ);
> +	else
> +		rc = wait_event_timeout(prm->wait,
> +					(prm->result.opcode == hdr->opcode),
> +					5 * HZ);
> +
> +	if (!rc) {
> +		dev_err(&gdev->dev, "CMD timeout for [%x] opcode\n",
> +			hdr->opcode);
> +		rc = -ETIMEDOUT;
> +	} else if (prm->result.status > 0) {
> +		dev_err(&gdev->dev, "DSP returned error[%x] %x\n", hdr->opcode,
> +			prm->result.status);
> +		rc = -EINVAL;
> +	} else {
> +		dev_err(&gdev->dev, "DSP returned [%x]\n",
> +			prm->result.status);
> +		rc = 0;
> +	}
> +
> +err:
> +	mutex_unlock(&prm->lock);
> +	return rc;
> +}

In patch7 you had more or less the same code. can a helper be used?

+int audioreach_graph_send_cmd_sync(struct q6apm_graph *graph,
+				   struct gpr_pkt *pkt, uint32_t rsp_opcode)
+{
+
+	struct device *dev = graph->dev;
+	struct gpr_hdr *hdr = &pkt->hdr;
+	int rc;
+
+	mutex_lock(&graph->cmd_lock);
+	graph->result.opcode = 0;
+	graph->result.status = 0;
+
+	rc = gpr_send_port_pkt(graph->port, pkt);
+	if (rc < 0)
+		goto err;
+
+	if (rsp_opcode)
+		rc = wait_event_timeout(graph->cmd_wait,
+					(graph->result.opcode == hdr->opcode) ||
+					(graph->result.opcode == rsp_opcode),
+					5 * HZ);
+	else
+		rc = wait_event_timeout(graph->cmd_wait,
+					(graph->result.opcode == hdr->opcode),
+					5 * HZ);
+
+	if (!rc) {
+		dev_err(dev, "CMD timeout for [%x] opcode\n", hdr->opcode);
+		rc = -ETIMEDOUT;
+	} else if (graph->result.status > 0) {
+		dev_err(dev, "DSP returned error[%x] %x\n", hdr->opcode,
+			graph->result.status);
+		rc = -EINVAL;
+	} else {
+		dev_err(dev, "DSP returned [%x]\n", graph->result.status);
+		rc = 0;
+	}
+
+err:
+	mutex_unlock(&graph->cmd_lock);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(audioreach_graph_send_cmd_sync);


> +static int q6prm_set_hw_core_req(struct device *dev, uint32_t hw_block_id,   bool enable)
> +{
> +	struct prm_cmd_request_hw_core *req;
> +	struct apm_module_param_data *param_data;
> +	struct gpr_pkt *pkt;
> +	struct q6prm *prm = dev_get_drvdata(dev);
> +	gpr_device_t *gdev  = prm->gdev;
> +	void *p;
> +	int rc = 0;
> +	uint32_t opcode, rsp_opcode;
> +
> +	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;
> +	}
> +
> +	p = audioreach_alloc_cmd_pkt(sizeof(*req), opcode, 0, gdev->svc.id,
> +				     GPR_PRM_MODULE_IID);
> +	if (IS_ERR(p))
> +		return -ENOMEM;
> +
> +	pkt = p;
> +	req = p + 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;
> +
> +	q6prm_send_cmd_sync(prm, pkt, rsp_opcode);
> +
> +	kfree(pkt);
> +
> +	return rc;

rc is not assigned, should this not trap the result of sending a command?

> +}
> +
> +static int q6prm_set_lpass_clock(struct device *dev, int clk_id, int clk_attr,
> +				 int clk_root, unsigned int freq)
> +{
> +	struct prm_cmd_request_rsc *req;
> +	struct apm_module_param_data *param_data;
> +	struct gpr_pkt *pkt;
> +	struct q6prm *prm = dev_get_drvdata(dev);
> +	gpr_device_t *gdev  = prm->gdev;
> +	void *p;
> +	int rc = 0;
> +
> +	p = audioreach_alloc_cmd_pkt(sizeof(*req), PRM_CMD_REQUEST_HW_RSC,
> +				     0, gdev->svc.id, GPR_PRM_MODULE_IID);
> +	if (IS_ERR(p))
> +		return -ENOMEM;
> +
> +	pkt = p;
> +	req = p + 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_ids[0].clock_id = clk_id;
> +	req->clock_ids[0].clock_freq = freq;
> +	req->clock_ids[0].clock_attri = clk_attr;
> +	req->clock_ids[0].clock_root = clk_root;
> +
> +	q6prm_send_cmd_sync(prm, pkt, PRM_CMD_RSP_REQUEST_HW_RSC);

rc = q6prm_send_cmd_sync(prm, pkt, PRM_CMD_RSP_REQUEST_HW_RSC);

?

> +
> +	kfree(pkt);
> +
> +	return rc;
> +}
> +
kernel test robot July 15, 2021, 7:40 a.m. UTC | #2 
Hi Srinivas,

I love your patch! Yet something to improve:

[auto build test ERROR on asoc/for-next]
[also build test ERROR on robh/for-next sound/for-next linus/master v5.14-rc1 next-20210715]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Srinivas-Kandagatla/ASoC-qcom-Add-AudioReach-support/20210714-233339
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/35523398d3578485b21933796d33e6e65aa988d9
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Srinivas-Kandagatla/ASoC-qcom-Add-AudioReach-support/20210714-233339
        git checkout 35523398d3578485b21933796d33e6e65aa988d9
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "of_clk_add_hw_provider" [sound/soc/qcom/audioreach/snd-prm.ko] undefined!
ERROR: modpost: "audioreach_alloc_cmd_pkt" [sound/soc/qcom/audioreach/snd-prm.ko] undefined!
>> ERROR: modpost: "devm_clk_hw_register" [sound/soc/qcom/audioreach/snd-prm.ko] undefined!
ERROR: modpost: "q6apm_graph_stop" [sound/soc/qcom/audioreach/snd-apm-bedai.ko] undefined!
ERROR: modpost: "q6apm_graph_close" [sound/soc/qcom/audioreach/snd-apm-bedai.ko] undefined!
ERROR: modpost: "q6apm_graph_start" [sound/soc/qcom/audioreach/snd-apm-bedai.ko] undefined!
ERROR: modpost: "q6apm_graph_open" [sound/soc/qcom/audioreach/snd-apm-bedai.ko] undefined!
ERROR: modpost: "q6apm_graph_prepare" [sound/soc/qcom/audioreach/snd-apm-bedai.ko] undefined!
ERROR: modpost: "q6apm_graph_stop" [sound/soc/qcom/audioreach/snd-apm-dai.ko] undefined!
ERROR: modpost: "q6apm_graph_close" [sound/soc/qcom/audioreach/snd-apm-dai.ko] undefined!
WARNING: modpost: suppressed 6 unresolved symbol warnings because there were too many)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Srinivas Kandagatla July 15, 2021, 10:32 a.m. UTC | #3 
On 14/07/2021 18:09, Pierre-Louis Bossart wrote:
> 
> 
> 
>> +static int q6prm_send_cmd_sync(struct q6prm *prm, struct gpr_pkt *pkt,
>> +			uint32_t rsp_opcode)
>> +{
>> +	gpr_device_t *gdev = prm->gdev;
>> +	struct gpr_hdr *hdr = &pkt->hdr;
>> +	int rc;
>> +
>> +	mutex_lock(&prm->lock);
>> +	prm->result.opcode = 0;
>> +	prm->result.status = 0;
>> +
>> +	rc = gpr_send_pkt(prm->gdev, pkt);
>> +	if (rc < 0)
>> +		goto err;
>> +
>> +	if (rsp_opcode)
>> +		rc = wait_event_timeout(prm->wait,
>> +					(prm->result.opcode == hdr->opcode) ||
>> +					(prm->result.opcode == rsp_opcode),
>> +					5 * HZ);
>> +	else
>> +		rc = wait_event_timeout(prm->wait,
>> +					(prm->result.opcode == hdr->opcode),
>> +					5 * HZ);
>> +
>> +	if (!rc) {
>> +		dev_err(&gdev->dev, "CMD timeout for [%x] opcode\n",
>> +			hdr->opcode);
>> +		rc = -ETIMEDOUT;
>> +	} else if (prm->result.status > 0) {
>> +		dev_err(&gdev->dev, "DSP returned error[%x] %x\n", hdr->opcode,
>> +			prm->result.status);
>> +		rc = -EINVAL;
>> +	} else {
>> +		dev_err(&gdev->dev, "DSP returned [%x]\n",
>> +			prm->result.status);
>> +		rc = 0;
>> +	}
>> +
>> +err:
>> +	mutex_unlock(&prm->lock);
>> +	return rc;
>> +}
> 
> In patch7 you had more or less the same code. can a helper be used?

Its possible, will abstract this out in audioreach.c.


> 
> +int audioreach_graph_send_cmd_sync(struct q6apm_graph *graph,
> +				   struct gpr_pkt *pkt, uint32_t rsp_opcode)
> +{
> +
> +	struct device *dev = graph->dev;
> +	struct gpr_hdr *hdr = &pkt->hdr;
> +	int rc;
> +
> +	mutex_lock(&graph->cmd_lock);
> +	graph->result.opcode = 0;
> +	graph->result.status = 0;
> +
> +	rc = gpr_send_port_pkt(graph->port, pkt);
> +	if (rc < 0)
> +		goto err;
> +
> +	if (rsp_opcode)
> +		rc = wait_event_timeout(graph->cmd_wait,
> +					(graph->result.opcode == hdr->opcode) ||
> +					(graph->result.opcode == rsp_opcode),
> +					5 * HZ);
> +	else
> +		rc = wait_event_timeout(graph->cmd_wait,
> +					(graph->result.opcode == hdr->opcode),
> +					5 * HZ);
> +
> +	if (!rc) {
> +		dev_err(dev, "CMD timeout for [%x] opcode\n", hdr->opcode);
> +		rc = -ETIMEDOUT;
> +	} else if (graph->result.status > 0) {
> +		dev_err(dev, "DSP returned error[%x] %x\n", hdr->opcode,
> +			graph->result.status);
> +		rc = -EINVAL;
> +	} else {
> +		dev_err(dev, "DSP returned [%x]\n", graph->result.status);
> +		rc = 0;
> +	}
> +
> +err:
> +	mutex_unlock(&graph->cmd_lock);
> +	return rc;
> +}
> +EXPORT_SYMBOL_GPL(audioreach_graph_send_cmd_sync);
> 
> 
>> +static int q6prm_set_hw_core_req(struct device *dev, uint32_t hw_block_id,   bool enable)
>> +{
>> +	struct prm_cmd_request_hw_core *req;
>> +	struct apm_module_param_data *param_data;
>> +	struct gpr_pkt *pkt;
>> +	struct q6prm *prm = dev_get_drvdata(dev);
>> +	gpr_device_t *gdev  = prm->gdev;
>> +	void *p;
>> +	int rc = 0;
>> +	uint32_t opcode, rsp_opcode;
>> +
>> +	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;
>> +	}
>> +
>> +	p = audioreach_alloc_cmd_pkt(sizeof(*req), opcode, 0, gdev->svc.id,
>> +				     GPR_PRM_MODULE_IID);
>> +	if (IS_ERR(p))
>> +		return -ENOMEM;
>> +
>> +	pkt = p;
>> +	req = p + 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;
>> +
>> +	q6prm_send_cmd_sync(prm, pkt, rsp_opcode);
>> +
>> +	kfree(pkt);
>> +
>> +	return rc;
> 
> rc is not assigned, should this not trap the result of sending a command?
My bad! will fix such instances.


--srini
diff mbox series

Patch

diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index eb4446206710..5f7d7d956355 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -109,12 +109,16 @@  config SND_SOC_QCOM_APM_DAI
 config SND_SOC_QCOM_APM_BEDAI
 	tristate
 
+config SND_SOC_QCOM_PRM
+	tristate
+
 config SND_SOC_QCOM_AUDIOREACH
 	tristate "SoC ALSA audio drives for Qualcomm AUDIOREACH"
 	depends on QCOM_GPR
 	select SND_SOC_TOPOLOGY
 	select SND_SOC_QCOM_APM_DAI
 	select SND_SOC_QCOM_APM_BEDAI
+	select SND_SOC_QCOM_PRM
 	help
 	 Support for AudioReach in QDSP
 
diff --git a/sound/soc/qcom/audioreach/Makefile b/sound/soc/qcom/audioreach/Makefile
index e8651455b206..d9904201ccf0 100644
--- a/sound/soc/qcom/audioreach/Makefile
+++ b/sound/soc/qcom/audioreach/Makefile
@@ -2,9 +2,11 @@ 
 snd-ar-objs := audioreach.o q6apm.o topology.o
 snd-apm-dai-objs := q6apm-dai.o
 snd-apm-bedai-objs := q6apm-bedai.o
+snd-prm-objs := q6prm.o
 
 obj-$(CONFIG_SND_SOC_QCOM_AUDIOREACH) += snd-ar.o
 obj-$(CONFIG_SND_SOC_QCOM_APM_DAI) += snd-apm-dai.o
 obj-$(CONFIG_SND_SOC_QCOM_APM_BEDAI) += snd-apm-bedai.o
+obj-$(CONFIG_SND_SOC_QCOM_PRM) += snd-prm.o
 
 
diff --git a/sound/soc/qcom/audioreach/q6prm.c b/sound/soc/qcom/audioreach/q6prm.c
new file mode 100644
index 000000000000..2cadb7b28a1c
--- /dev/null
+++ b/sound/soc/qcom/audioreach/q6prm.c
@@ -0,0 +1,414 @@ 
+// 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/clk-provider.h>
+#include <linux/jiffies.h>
+#include <linux/soc/qcom/apr.h>
+#include <dt-bindings/soc/qcom,gpr.h>
+#include <dt-bindings/sound/qcom,q6apm.h>
+#include "audioreach.h"
+
+#define Q6PRM_MAX_CLK_ID			104
+
+#define Q6PRM_CLK(id) &(struct q6prm_clk) {		\
+		.clk_id	= id,				\
+		.afe_clk_id	= Q6PRM_##id,		\
+		.name = #id,				\
+		.attributes = LPASS_CLK_ATTRIBUTE_COUPLE_NO, \
+		.rate = 19200000,			\
+		.hw.init = &(struct clk_init_data) {	\
+			.ops = &clk_q6prm_ops,		\
+			.name = #id,			\
+		},					\
+	}
+
+#define Q6PRM_VOTE_CLK(id, blkid) &(struct q6prm_clk) { \
+		.clk_id	= id,				\
+		.afe_clk_id = blkid,			\
+		.hw.init = &(struct clk_init_data) {	\
+			.ops = &clk_vote_q6prm_ops,	\
+			.name = #id,			\
+		},					\
+	}
+
+struct q6prm_clk {
+	struct device *dev;
+	int clk_id;
+	int afe_clk_id;
+	char *name;
+	int attributes;
+	int rate;
+	uint32_t handle;
+	struct clk_hw hw;
+};
+#define to_q6prm_clk(_hw) container_of(_hw, struct q6prm_clk, hw)
+
+struct q6prm {
+	struct device *dev;
+	gpr_device_t *gdev;
+	wait_queue_head_t wait;
+	struct gpr_ibasic_rsp_result_t result;
+	struct mutex lock;
+	struct q6prm_clk **clks;
+	int num_clks;
+};
+
+#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
+
+#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
+
+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_ids[1];
+} __packed;
+
+struct prm_cmd_release_rsc {
+	struct apm_module_param_data param_data;
+	uint32_t num_clk_id;
+	struct audio_hw_clk_cfg clock_ids[1];
+} __packed;
+
+static int q6prm_send_cmd_sync(struct q6prm *prm, struct gpr_pkt *pkt,
+			uint32_t rsp_opcode)
+{
+	gpr_device_t *gdev = prm->gdev;
+	struct gpr_hdr *hdr = &pkt->hdr;
+	int rc;
+
+	mutex_lock(&prm->lock);
+	prm->result.opcode = 0;
+	prm->result.status = 0;
+
+	rc = gpr_send_pkt(prm->gdev, pkt);
+	if (rc < 0)
+		goto err;
+
+	if (rsp_opcode)
+		rc = wait_event_timeout(prm->wait,
+					(prm->result.opcode == hdr->opcode) ||
+					(prm->result.opcode == rsp_opcode),
+					5 * HZ);
+	else
+		rc = wait_event_timeout(prm->wait,
+					(prm->result.opcode == hdr->opcode),
+					5 * HZ);
+
+	if (!rc) {
+		dev_err(&gdev->dev, "CMD timeout for [%x] opcode\n",
+			hdr->opcode);
+		rc = -ETIMEDOUT;
+	} else if (prm->result.status > 0) {
+		dev_err(&gdev->dev, "DSP returned error[%x] %x\n", hdr->opcode,
+			prm->result.status);
+		rc = -EINVAL;
+	} else {
+		dev_err(&gdev->dev, "DSP returned [%x]\n",
+			prm->result.status);
+		rc = 0;
+	}
+
+err:
+	mutex_unlock(&prm->lock);
+	return rc;
+}
+
+static int q6prm_set_hw_core_req(struct device *dev, uint32_t hw_block_id,   bool enable)
+{
+	struct prm_cmd_request_hw_core *req;
+	struct apm_module_param_data *param_data;
+	struct gpr_pkt *pkt;
+	struct q6prm *prm = dev_get_drvdata(dev);
+	gpr_device_t *gdev  = prm->gdev;
+	void *p;
+	int rc = 0;
+	uint32_t opcode, rsp_opcode;
+
+	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;
+	}
+
+	p = audioreach_alloc_cmd_pkt(sizeof(*req), opcode, 0, gdev->svc.id,
+				     GPR_PRM_MODULE_IID);
+	if (IS_ERR(p))
+		return -ENOMEM;
+
+	pkt = p;
+	req = p + 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;
+
+	q6prm_send_cmd_sync(prm, pkt, rsp_opcode);
+
+	kfree(pkt);
+
+	return rc;
+}
+
+static int q6prm_set_lpass_clock(struct device *dev, int clk_id, int clk_attr,
+				 int clk_root, unsigned int freq)
+{
+	struct prm_cmd_request_rsc *req;
+	struct apm_module_param_data *param_data;
+	struct gpr_pkt *pkt;
+	struct q6prm *prm = dev_get_drvdata(dev);
+	gpr_device_t *gdev  = prm->gdev;
+	void *p;
+	int rc = 0;
+
+	p = audioreach_alloc_cmd_pkt(sizeof(*req), PRM_CMD_REQUEST_HW_RSC,
+				     0, gdev->svc.id, GPR_PRM_MODULE_IID);
+	if (IS_ERR(p))
+		return -ENOMEM;
+
+	pkt = p;
+	req = p + 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_ids[0].clock_id = clk_id;
+	req->clock_ids[0].clock_freq = freq;
+	req->clock_ids[0].clock_attri = clk_attr;
+	req->clock_ids[0].clock_root = clk_root;
+
+	q6prm_send_cmd_sync(prm, pkt, PRM_CMD_RSP_REQUEST_HW_RSC);
+
+	kfree(pkt);
+
+	return rc;
+}
+
+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;
+
+	result = data->payload;
+
+	switch (hdr->opcode) {
+	case PRM_CMD_RSP_REQUEST_HW_RSC:
+	case PRM_CMD_RSP_RELEASE_HW_RSC:
+		prm->result.opcode = hdr->opcode;
+		prm->result.status = result->status;
+		wake_up(&prm->wait);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int clk_q6prm_prepare(struct clk_hw *hw)
+{
+	struct q6prm_clk *clk = to_q6prm_clk(hw);
+
+	return q6prm_set_lpass_clock(clk->dev, clk->afe_clk_id, clk->attributes,
+				     Q6PRM_LPASS_CLK_ROOT_DEFAULT, clk->rate);
+}
+
+static void clk_q6prm_unprepare(struct clk_hw *hw)
+{
+	struct q6prm_clk *clk = to_q6prm_clk(hw);
+
+	q6prm_set_lpass_clock(clk->dev, clk->afe_clk_id, clk->attributes,
+			      Q6PRM_LPASS_CLK_ROOT_DEFAULT, 0);
+}
+
+static int clk_q6prm_set_rate(struct clk_hw *hw, unsigned long rate,
+			      unsigned long parent_rate)
+{
+	struct q6prm_clk *clk = to_q6prm_clk(hw);
+
+	clk->rate = rate;
+
+	return 0;
+}
+
+static unsigned long clk_q6prm_recalc_rate(struct clk_hw *hw,
+					   unsigned long parent_rate)
+{
+	struct q6prm_clk *clk = to_q6prm_clk(hw);
+
+	return clk->rate;
+}
+
+static long clk_q6prm_round_rate(struct clk_hw *hw, unsigned long rate,
+				 unsigned long *parent_rate)
+{
+	return rate;
+}
+
+static const struct clk_ops clk_q6prm_ops = {
+	.prepare	= clk_q6prm_prepare,
+	.unprepare	= clk_q6prm_unprepare,
+	.set_rate	= clk_q6prm_set_rate,
+	.round_rate	= clk_q6prm_round_rate,
+	.recalc_rate	= clk_q6prm_recalc_rate,
+};
+
+static int clk_vote_q6prm_block(struct clk_hw *hw)
+{
+	struct q6prm_clk *clk = to_q6prm_clk(hw);
+
+	return q6prm_set_hw_core_req(clk->dev, clk->afe_clk_id, true);
+}
+
+static void clk_unvote_q6prm_block(struct clk_hw *hw)
+{
+	struct q6prm_clk *clk = to_q6prm_clk(hw);
+
+	q6prm_set_hw_core_req(clk->dev, clk->afe_clk_id, false);
+}
+
+static const struct clk_ops clk_vote_q6prm_ops = {
+	.prepare	= clk_vote_q6prm_block,
+	.unprepare	= clk_unvote_q6prm_block,
+};
+
+static struct q6prm_clk *q6prm_clks[Q6PRM_MAX_CLK_ID] = {
+	[LPASS_CLK_ID_WSA_CORE_MCLK] = Q6PRM_CLK(LPASS_CLK_ID_WSA_CORE_MCLK),
+	[LPASS_CLK_ID_WSA_CORE_NPL_MCLK] =
+				Q6PRM_CLK(LPASS_CLK_ID_WSA_CORE_NPL_MCLK),
+	[LPASS_CLK_ID_VA_CORE_MCLK] = Q6PRM_CLK(LPASS_CLK_ID_VA_CORE_MCLK),
+	[LPASS_CLK_ID_TX_CORE_MCLK] = Q6PRM_CLK(LPASS_CLK_ID_TX_CORE_MCLK),
+	[LPASS_CLK_ID_TX_CORE_NPL_MCLK] =
+			Q6PRM_CLK(LPASS_CLK_ID_TX_CORE_NPL_MCLK),
+	[LPASS_CLK_ID_RX_CORE_MCLK] = Q6PRM_CLK(LPASS_CLK_ID_RX_CORE_MCLK),
+	[LPASS_CLK_ID_RX_CORE_NPL_MCLK] =
+				Q6PRM_CLK(LPASS_CLK_ID_RX_CORE_NPL_MCLK),
+	[LPASS_CLK_ID_VA_CORE_2X_MCLK] =
+				Q6PRM_CLK(LPASS_CLK_ID_VA_CORE_2X_MCLK),
+	[LPASS_HW_MACRO_VOTE] = Q6PRM_VOTE_CLK(LPASS_HW_MACRO_VOTE,
+						Q6PRM_HW_CORE_ID_LPASS),
+	[LPASS_HW_DCODEC_VOTE] = Q6PRM_VOTE_CLK(LPASS_HW_DCODEC_VOTE,
+						Q6PRM_HW_CORE_ID_DCODEC),
+};
+
+static struct clk_hw *q6prm_of_clk_hw_get(struct of_phandle_args *clkspec,
+					  void *data)
+{
+	struct q6prm *cc = data;
+	unsigned int idx = clkspec->args[0];
+	unsigned int attr = clkspec->args[1];
+
+	if (idx >= cc->num_clks || attr > LPASS_CLK_ATTRIBUTE_COUPLE_DIVISOR) {
+		dev_err(cc->dev, "Invalid clk specifier (%d, %d)\n", idx, attr);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (cc->clks[idx]) {
+		cc->clks[idx]->attributes = attr;
+		return &cc->clks[idx]->hw;
+	}
+
+	return ERR_PTR(-ENOENT);
+}
+
+static int prm_probe(gpr_device_t *gdev)
+{
+	struct device *dev = &gdev->dev;
+	struct q6prm *cc;
+	int i, ret;
+
+	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);
+	cc->clks = &q6prm_clks[0];
+	cc->num_clks = ARRAY_SIZE(q6prm_clks);
+	for (i = 0; i < ARRAY_SIZE(q6prm_clks); i++) {
+		if (!q6prm_clks[i])
+			continue;
+
+		q6prm_clks[i]->dev = dev;
+
+		ret = devm_clk_hw_register(dev, &q6prm_clks[i]->hw);
+		if (ret)
+			return ret;
+	}
+
+	ret = of_clk_add_hw_provider(dev->of_node, q6prm_of_clk_hw_get, cc);
+	if (ret)
+		return ret;
+
+	dev_set_drvdata(dev, cc);
+
+	return 0;
+}
+
+static const struct of_device_id prm_device_id[]  = {
+	{ .compatible = "qcom,q6prm" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, prm_device_id);
+
+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 v2");