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Commit 1cd7a3f0 authored by Manaf Meethalavalappu Pallikunhi's avatar Manaf Meethalavalappu Pallikunhi
Browse files

drivers: thermal: Add ipc logging support for bcl pmic5 driver 



Add ipc logging enablement for bcl pmic5. It dumps bcl vbat, ibat
and bcl level status information to ipc logging during bcl interrupt
violation as well as during current value query from thermal
framework.

Change-Id: Ibc0b69b935465f7961a67d88db87536f86b88c77
Signed-off-by: default avatarManaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
parent 64a6b508

drivers/thermal/qcom/bcl_pmic5.c

+46 −3
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2021, The Linux Foundation. All rights reserved.

 */



#define pr_fmt(fmt) "%s:%s " fmt, KBUILD_MODNAME, __func__
@@ -18,6 +18,7 @@ 
#include <linux/platform_device.h>

#include <linux/mutex.h>

#include <linux/thermal.h>

#include <linux/ipc_logging.h>



#include "../thermal_core.h"
@@ -52,6 +53,15 @@ 
#define BCL_VBAT_THRESH_BASE  2250



#define MAX_PERPH_COUNT       2

#define IPC_LOGPAGES          2



#define BCL_IPC(dev, msg, args...)      do { \

			if ((dev) && (dev)->ipc_log) { \

				ipc_log_string((dev)->ipc_log, \

					"[%s]: %s: " msg, \

					current->comm, __func__, args); \

			} \

		} while (0)



enum bcl_dev_type {

	BCL_IBAT_LVL0,
@@ -95,6 +105,7 @@ struct bcl_device { 
	struct device			*dev;

	struct regmap			*regmap;

	uint16_t			fg_bcl_addr;

	void				*ipc_log;

	struct bcl_peripheral_data	param[BCL_TYPE_MAX];

};
@@ -269,6 +280,8 @@ static int bcl_read_ibat(void *data, int *adc_value) 
		bat_data->last_val = *adc_value;

	}

	pr_debug("ibat:%d mA ADC:0x%02x\n", bat_data->last_val, val);

	BCL_IPC(bat_data->dev, "ibat:%d mA ADC:0x%02x\n",

		 bat_data->last_val, val);



bcl_read_exit:

	return ret;
@@ -338,6 +351,8 @@ static int bcl_read_vbat_tz(struct thermal_zone_device *tzd, int *adc_value) 
		bat_data->last_val = *adc_value;

	}

	pr_debug("vbat:%d mv\n", bat_data->last_val);

	BCL_IPC(bat_data->dev, "vbat:%d mv ADC:0x%02x\n",

			bat_data->last_val, val);



bcl_read_exit:

	return ret;
@@ -402,6 +417,7 @@ static int bcl_set_lbat(void *data, int low, int high) 
static int bcl_read_lbat(void *data, int *adc_value)

{

	int ret = 0;

	int ibat = 0, vbat = 0;

	unsigned int val = 0;

	struct bcl_peripheral_data *bat_data =

		(struct bcl_peripheral_data *)data;
@@ -429,6 +445,12 @@ static int bcl_read_lbat(void *data, int *adc_value) 
	bat_data->last_val = *adc_value;

	pr_debug("lbat:%d val:%d\n", bat_data->type,

			bat_data->last_val);

	if (bcl_perph->param[BCL_IBAT_LVL0].tz_dev)

		bcl_read_ibat(&bcl_perph->param[BCL_IBAT_LVL0], &ibat);

	if (bcl_perph->param[BCL_VBAT_LVL0].tz_dev)

		bcl_read_vbat_tz(bcl_perph->param[BCL_VBAT_LVL0].tz_dev, &vbat);

	BCL_IPC(bcl_perph, "LVLbat:%d val:%d\n", bat_data->type,

			bat_data->last_val);



bcl_read_exit:

	return ret;
@@ -439,15 +461,25 @@ static irqreturn_t bcl_handle_irq(int irq, void *data) 
	struct bcl_peripheral_data *perph_data =

		(struct bcl_peripheral_data *)data;

	unsigned int irq_status = 0;

	int ibat = 0, vbat = 0;

	struct bcl_device *bcl_perph;



	bcl_perph = perph_data->dev;

	bcl_read_register(bcl_perph, BCL_IRQ_STATUS, &irq_status);

	if (bcl_perph->param[BCL_IBAT_LVL0].tz_dev)

		bcl_read_ibat(&bcl_perph->param[BCL_IBAT_LVL0], &ibat);

	if (bcl_perph->param[BCL_VBAT_LVL0].tz_dev)

		bcl_read_vbat_tz(bcl_perph->param[BCL_VBAT_LVL0].tz_dev, &vbat);



	if (irq_status & perph_data->status_bit_idx) {

		pr_debug("Irq:%d triggered for bcl type:%s. status:%u\n",

		pr_debug(

		"Irq:%d triggered for bcl type:%s. status:%u ibat=%d vbat=%d\n",

			irq, bcl_int_names[perph_data->type],

			irq_status, ibat, vbat);

		BCL_IPC(bcl_perph,

		"Irq:%d triggered for bcl type:%s. status:%u ibat=%d vbat=%d\n",

			irq, bcl_int_names[perph_data->type],

			irq_status);

			irq_status, ibat, vbat);

		of_thermal_handle_trip_temp(perph_data->dev->dev,

				perph_data->tz_dev,

				perph_data->status_bit_idx);
@@ -636,6 +668,7 @@ static int bcl_remove(struct platform_device *pdev) 
static int bcl_probe(struct platform_device *pdev)

{

	struct bcl_device *bcl_perph = NULL;

	char bcl_name[40];



	if (bcl_device_ct >= MAX_PERPH_COUNT) {

		dev_err(&pdev->dev, "Max bcl peripheral supported already.\n");
@@ -663,6 +696,16 @@ static int bcl_probe(struct platform_device *pdev) 


	dev_set_drvdata(&pdev->dev, bcl_perph);



	snprintf(bcl_name, sizeof(bcl_name), "bcl_0x%04x_%d",

					bcl_perph->fg_bcl_addr,

					bcl_device_ct - 1);



	bcl_perph->ipc_log = ipc_log_context_create(IPC_LOGPAGES,

							bcl_name, 0);

	if (!bcl_perph->ipc_log)

		pr_err("%s: unable to create IPC Logging for %s\n",

					__func__, bcl_name);



	return 0;

}