diff options
Diffstat (limited to 'drivers/regulator/wm8350-regulator.c')
| -rw-r--r-- | drivers/regulator/wm8350-regulator.c | 102 |
1 files changed, 19 insertions, 83 deletions
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index a1c7dfee5c37..56d6168a888d 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -1,16 +1,11 @@ -/* - * wm8350.c -- Voltage and current regulation for the Wolfson WM8350 PMIC - * - * Copyright 2007, 2008 Wolfson Microelectronics PLC. - * - * Author: Liam Girdwood - * linux@wolfsonmicro.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// wm8350.c -- Voltage and current regulation for the Wolfson WM8350 PMIC +// +// Copyright 2007, 2008 Wolfson Microelectronics PLC. +// +// Author: Liam Girdwood +// linux@wolfsonmicro.com #include <linux/module.h> #include <linux/moduleparam.h> @@ -28,7 +23,7 @@ #define WM8350_DCDC_MAX_VSEL 0x66 /* Microamps */ -static const int isink_cur[] = { +static const unsigned int isink_cur[] = { 4, 5, 6, @@ -95,73 +90,6 @@ static const int isink_cur[] = { 223191 }; -static int get_isink_val(int min_uA, int max_uA, u16 *setting) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(isink_cur); i++) { - if (min_uA <= isink_cur[i] && max_uA >= isink_cur[i]) { - *setting = i; - return 0; - } - } - return -EINVAL; -} - -static int wm8350_isink_set_current(struct regulator_dev *rdev, int min_uA, - int max_uA) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int isink = rdev_get_id(rdev); - u16 val, setting; - int ret; - - ret = get_isink_val(min_uA, max_uA, &setting); - if (ret != 0) - return ret; - - switch (isink) { - case WM8350_ISINK_A: - val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) & - ~WM8350_CS1_ISEL_MASK; - wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_A, - val | setting); - break; - case WM8350_ISINK_B: - val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) & - ~WM8350_CS1_ISEL_MASK; - wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_B, - val | setting); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int wm8350_isink_get_current(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int isink = rdev_get_id(rdev); - u16 val; - - switch (isink) { - case WM8350_ISINK_A: - val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) & - WM8350_CS1_ISEL_MASK; - break; - case WM8350_ISINK_B: - val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) & - WM8350_CS1_ISEL_MASK; - break; - default: - return 0; - } - - return isink_cur[val]; -} - /* turn on ISINK followed by DCDC */ static int wm8350_isink_enable(struct regulator_dev *rdev) { @@ -982,8 +910,8 @@ static const struct regulator_ops wm8350_ldo_ops = { }; static const struct regulator_ops wm8350_isink_ops = { - .set_current_limit = wm8350_isink_set_current, - .get_current_limit = wm8350_isink_get_current, + .set_current_limit = regulator_set_current_limit_regmap, + .get_current_limit = regulator_get_current_limit_regmap, .enable = wm8350_isink_enable, .disable = wm8350_isink_disable, .is_enabled = wm8350_isink_is_enabled, @@ -1138,6 +1066,10 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_CS1, .type = REGULATOR_CURRENT, .owner = THIS_MODULE, + .curr_table = isink_cur, + .n_current_limits = ARRAY_SIZE(isink_cur), + .csel_reg = WM8350_CURRENT_SINK_DRIVER_A, + .csel_mask = WM8350_CS1_ISEL_MASK, }, { .name = "ISINKB", @@ -1146,6 +1078,10 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_CS2, .type = REGULATOR_CURRENT, .owner = THIS_MODULE, + .curr_table = isink_cur, + .n_current_limits = ARRAY_SIZE(isink_cur), + .csel_reg = WM8350_CURRENT_SINK_DRIVER_B, + .csel_mask = WM8350_CS2_ISEL_MASK, }, }; |