Merge "power: smb1390-psy: Add module parameter to control logging" (3160991f) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/power/supply/qcom/smb1390-charger-psy.c

+71 −18

Original line number	Diff line number	Diff line
		/* Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
		/* Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -12,6 +12,7 @@

		#define pr_fmt(fmt) "SMB1390: %s: " fmt, __func__

		#include <linux/debugfs.h>
		#include <linux/device.h>
		#include <linux/interrupt.h>
		#include <linux/module.h>
		@@ -91,6 +92,16 @@
		#define SRC_VOTER "SRC_VOTER"
		#define SWITCHER_TOGGLE_VOTER "SWITCHER_TOGGLE_VOTER"

		#define smb1390_dbg(chip, reason, fmt, ...) \
		do { \
		if (chip->debug_mask & (reason)) \
		pr_info("SMB1390: %s: " fmt, __func__, \
		##__VA_ARGS__); \
		else \
		pr_debug("SMB1390: %s: " fmt, __func__, \
		##__VA_ARGS__); \
		} while (0)

		enum {
		SWITCHER_OFF_WINDOW_IRQ = 0,
		SWITCHER_OFF_FAULT_IRQ,
		@@ -108,6 +119,14 @@ enum {
		SMB_PIN_EN,
		};

		enum print_reason {
		PR_INTERRUPT = BIT(0),
		PR_REGISTER = BIT(1),
		PR_INFO = BIT(2),
		PR_EXT_DEPENDENCY = BIT(3),
		PR_MISC = BIT(4),
		};

		struct smb1390_iio {
		struct iio_channel *die_temp_chan;
		};
		@@ -117,6 +136,7 @@ struct smb1390 {
		struct regmap *regmap;
		struct notifier_block nb;
		struct wakeup_source *cp_ws;
		struct dentry *dfs_root;

		/* work structs */
		struct work_struct status_change_work;
		@@ -147,6 +167,7 @@ struct smb1390 {
		bool switcher_enabled;
		int die_temp;
		bool suspended;
		u32 debug_mask;
		};

		struct smb_irq {
		@@ -173,7 +194,8 @@ static int smb1390_masked_write(struct smb1390 *chip, int reg, int mask,
		{
		int rc;

		pr_debug("Writing 0x%02x to 0x%04x with mask 0x%02x\n", val, reg, mask);
		smb1390_dbg(chip, PR_REGISTER, "Writing 0x%02x to 0x%04x with mask 0x%02x\n",
		val, reg, mask);
		rc = regmap_update_bits(chip->regmap, reg, mask, val);
		if (rc < 0)
		pr_err("Couldn't write 0x%02x to 0x%04x with mask 0x%02x\n",
		@@ -187,7 +209,7 @@ static bool is_psy_voter_available(struct smb1390 *chip)
		if (!chip->batt_psy) {
		chip->batt_psy = power_supply_get_by_name("battery");
		if (!chip->batt_psy) {
		pr_debug("Couldn't find battery psy\n");
		smb1390_dbg(chip, PR_EXT_DEPENDENCY, "Couldn't find battery psy\n");
		return false;
		}
		}
		@@ -195,7 +217,7 @@ static bool is_psy_voter_available(struct smb1390 *chip)
		if (!chip->usb_psy) {
		chip->usb_psy = power_supply_get_by_name("usb");
		if (!chip->usb_psy) {
		pr_debug("Couldn't find usb psy\n");
		smb1390_dbg(chip, PR_EXT_DEPENDENCY, "Couldn't find usb psy\n");
		return false;
		}
		}
		@@ -203,7 +225,7 @@ static bool is_psy_voter_available(struct smb1390 *chip)
		if (!chip->dc_psy) {
		chip->dc_psy = power_supply_get_by_name("dc");
		if (!chip->dc_psy) {
		pr_debug("Couldn't find dc psy\n");
		smb1390_dbg(chip, PR_EXT_DEPENDENCY, "Couldn't find dc psy\n");
		return false;
		}
		}
		@@ -211,7 +233,7 @@ static bool is_psy_voter_available(struct smb1390 *chip)
		if (!chip->fcc_votable) {
		chip->fcc_votable = find_votable("FCC");
		if (!chip->fcc_votable) {
		pr_debug("Couldn't find FCC votable\n");
		smb1390_dbg(chip, PR_EXT_DEPENDENCY, "Couldn't find FCC votable\n");
		return false;
		}
		}
		@@ -219,13 +241,13 @@ static bool is_psy_voter_available(struct smb1390 *chip)
		if (!chip->fv_votable) {
		chip->fv_votable = find_votable("FV");
		if (!chip->fv_votable) {
		pr_debug("Couldn't find FV votable\n");
		smb1390_dbg(chip, PR_EXT_DEPENDENCY, "Couldn't find FV votable\n");
		return false;
		}
		}

		if (!chip->disable_votable) {
		pr_debug("Couldn't find CP DISABLE votable\n");
		smb1390_dbg(chip, PR_MISC, "Couldn't find CP DISABLE votable\n");
		return false;
		}

		@@ -261,7 +283,8 @@ static int smb1390_get_cp_en_status(struct smb1390 chip, int id, bool enable)
		*enable = !!(status & EN_PIN_OUT2_BIT);
		break;
		default:
		pr_debug("cp_en status %d is not supported", id);
		smb1390_dbg(chip, PR_MISC, "cp_en status %d is not supported",
		id);
		rc = -EINVAL;
		break;
		}
		@@ -277,7 +300,8 @@ static irqreturn_t default_irq_handler(int irq, void *data)

		for (i = 0; i < NUM_IRQS; ++i) {
		if (irq == chip->irqs[i]) {
		pr_debug("%s IRQ triggered\n", smb_irqs[i].name);
		smb1390_dbg(chip, PR_INTERRUPT, "%s IRQ triggered\n",
		smb_irqs[i].name);
		chip->irq_status \|= 1 << i;
		}
		}
		@@ -478,10 +502,11 @@ static int smb1390_ilim_vote_cb(struct votable votable, void data,

		/* ILIM less than 1A is not accurate; disable charging */
		if (ilim_uA < 1000000) {
		pr_debug("ILIM %duA is too low to allow charging\n", ilim_uA);
		smb1390_dbg(chip, PR_INFO, "ILIM %duA is too low to allow charging\n",
		ilim_uA);
		vote(chip->disable_votable, ILIM_VOTER, true, 0);
		} else {
		pr_debug("ILIM set to %duA\n", ilim_uA);
		smb1390_dbg(chip, PR_INFO, "ILIM set to %duA\n", ilim_uA);
		vote(chip->disable_votable, ILIM_VOTER, false, 0);
		}

		@@ -628,7 +653,7 @@ static void smb1390_taper_work(struct work_struct *work)

		if (get_effective_result(chip->fv_votable) >
		chip->taper_entry_fv) {
		pr_debug("Float voltage increased. Exiting taper\n");
		smb1390_dbg(chip, PR_INFO, "Float voltage increased. Exiting taper\n");
		goto out;
		} else {
		chip->taper_entry_fv =
		@@ -638,7 +663,8 @@ static void smb1390_taper_work(struct work_struct *work)
		if (pval.intval == POWER_SUPPLY_CHARGE_TYPE_TAPER) {
		fcc_uA = get_effective_result(chip->fcc_votable)
		- 100000;
		pr_debug("taper work reducing FCC to %duA\n", fcc_uA);
		smb1390_dbg(chip, PR_INFO, "taper work reducing FCC to %duA\n",
		fcc_uA);
		vote(chip->fcc_votable, CP_VOTER, true, fcc_uA);

		if (fcc_uA < 2000000) {
		@@ -647,13 +673,13 @@ static void smb1390_taper_work(struct work_struct *work)
		goto out;
		}
		} else {
		pr_debug("In fast charging. Wait for next taper\n");
		smb1390_dbg(chip, PR_INFO, "In fast charging. Wait for next taper\n");
		}

		msleep(500);
		}
		out:
		pr_debug("taper work exit\n");
		smb1390_dbg(chip, PR_INFO, "taper work exit\n");
		vote(chip->fcc_votable, CP_VOTER, false, 0);
		chip->taper_work_running = false;
		}
		@@ -740,7 +766,7 @@ static int smb1390_get_prop(struct power_supply *psy,
		+ 500000;
		break;
		default:
		pr_debug("charge pump power supply get prop %d not supported\n",
		smb1390_dbg(chip, PR_MISC, "charge pump power supply get prop %d not supported\n",
		prop);
		return -EINVAL;
		}
		@@ -767,7 +793,7 @@ static int smb1390_set_prop(struct power_supply *psy,
		chip->irq_status = val->intval;
		break;
		default:
		pr_debug("charge pump power supply set prop %d not supported\n",
		smb1390_dbg(chip, PR_MISC, "charge pump power supply set prop %d not supported\n",
		prop);
		return -EINVAL;
		}
		@@ -976,6 +1002,31 @@ static int smb1390_request_interrupts(struct smb1390 *chip)
		return rc;
		}

		#ifdef CONFIG_DEBUG_FS
		static void smb1390_create_debugfs(struct smb1390 *chip)
		{
		struct dentry *entry;

		chip->dfs_root = debugfs_create_dir("smb1390_charger_psy", NULL);
		if (IS_ERR_OR_NULL(chip->dfs_root)) {
		pr_err("Failed to create debugfs directory, rc=%ld\n",
		(long)chip->dfs_root);
		return;
		}

		entry = debugfs_create_u32("debug_mask", 0600, chip->dfs_root,
		&chip->debug_mask);
		if (IS_ERR_OR_NULL(entry)) {
		pr_err("Failed to create debug_mask, rc=%ld\n", (long)entry);
		debugfs_remove_recursive(chip->dfs_root);
		}
		}
		#else
		static void smb1390_create_debugfs(struct smb1390 *chip)
		{
		}
		#endif

		static int smb1390_probe(struct platform_device *pdev)
		{
		struct smb1390 *chip;
		@@ -1041,6 +1092,8 @@ static int smb1390_probe(struct platform_device *pdev)
		goto out_notifier;
		}

		smb1390_create_debugfs(chip);

		pr_info("smb1390 probed successfully");
		return 0;