m68k: stmark2: update board setup - linux-dev - Linux kernel development work

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author	Angelo Dureghello <angelo@kernel-space.org>	2021-07-02 11:48:38 +0200
committer	Greg Ungerer <gerg@linux-m68k.org>	2021-08-23 08:40:04 +1000
commit	40cff49289d5eab6c1db7792ae043e5b04903dd6 (patch)
tree	5a4de111910a4bef34707591319a5cffa6e4ad43 /Documentation/dev-tools/kunit/api/ssh:/git:
parent	m68k/nommu: prevent setting ROMKERNEL when ROM is not set (diff)

m68k: stmark2: update board setup

Add configuration for flexcan pads. Signed-off-by: Angelo Dureghello <angelo@kernel-space.org> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>

Diffstat (limited to 'Documentation/dev-tools/kunit/api/ssh:/git:')

0 files changed, 0 insertions, 0 deletions

/* * wm8994-regulator.c -- Regulator driver for the WM8994 * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown <broonie@opensource.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. */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/bitops.h> #include <linux/err.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/gpio.h> #include <linux/slab.h> #include <linux/mfd/wm8994/core.h> #include <linux/mfd/wm8994/registers.h> #include <linux/mfd/wm8994/pdata.h> struct wm8994_ldo { struct regulator_dev *regulator; struct wm8994 *wm8994; struct regulator_consumer_supply supply; struct regulator_init_data init_data; }; #define WM8994_LDO1_MAX_SELECTOR 0x7 #define WM8994_LDO2_MAX_SELECTOR 0x3 static struct regulator_ops wm8994_ldo1_ops = { .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, }; static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev, unsigned int selector) { struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); if (selector > WM8994_LDO2_MAX_SELECTOR) return -EINVAL; switch (ldo->wm8994->type) { case WM8994: return (selector * 100000) + 900000; case WM8958: return (selector * 100000) + 1000000; case WM1811: switch (selector) { case 0: return -EINVAL; default: return (selector * 100000) + 950000; } break; default: return -EINVAL; } } static struct regulator_ops wm8994_ldo2_ops = { .list_voltage = wm8994_ldo2_list_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, }; static const struct regulator_desc wm8994_ldo_desc[] = { { .name = "LDO1", .id = 1, .type = REGULATOR_VOLTAGE, .n_voltages = WM8994_LDO1_MAX_SELECTOR + 1, .vsel_reg = WM8994_LDO_1, .vsel_mask = WM8994_LDO1_VSEL_MASK, .ops = &wm8994_ldo1_ops, .min_uV = 2400000, .uV_step = 100000, .enable_time = 3000, .owner = THIS_MODULE, }, { .name = "LDO2", .id = 2, .type = REGULATOR_VOLTAGE, .n_voltages = WM8994_LDO2_MAX_SELECTOR + 1, .vsel_reg = WM8994_LDO_2, .vsel_mask = WM8994_LDO2_VSEL_MASK, .ops = &wm8994_ldo2_ops, .enable_time = 3000, .owner = THIS_MODULE, }, }; static const struct regulator_consumer_supply wm8994_ldo_consumer[] = { { .supply = "AVDD1" }, { .supply = "DCVDD" }, }; static const struct regulator_init_data wm8994_ldo_default[] = { { .constraints = { .valid_ops_mask = REGULATOR_CHANGE_STATUS, }, .num_consumer_supplies = 1, }, { .constraints = { .valid_ops_mask = REGULATOR_CHANGE_STATUS, }, .num_consumer_supplies = 1, }, }; static int wm8994_ldo_probe(struct platform_device *pdev) { struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent); struct wm8994_pdata *pdata = dev_get_platdata(wm8994->dev); int id = pdev->id % ARRAY_SIZE(pdata->ldo); struct regulator_config config = { }; struct wm8994_ldo *ldo; int ret; dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1); ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm8994_ldo), GFP_KERNEL); if (!ldo) return -ENOMEM; ldo->wm8994 = wm8994; ldo->supply = wm8994_ldo_consumer[id]; ldo->supply.dev_name = dev_name(wm8994->dev); config.dev = wm8994->dev; config.driver_data = ldo; config.regmap = wm8994->regmap; config.init_data = &ldo->init_data; if (pdata) config.ena_gpio = pdata->ldo[id].enable; else if (wm8994->dev->of_node) config.ena_gpio = wm8994->pdata.ldo[id].enable; /* Use default constraints if none set up */ if (!pdata || !pdata->ldo[id].init_data || wm8994->dev->of_node) { dev_dbg(wm8994->dev, "Using default init data, supply %s %s\n", ldo->supply.dev_name, ldo->supply.supply); ldo->init_data = wm8994_ldo_default[id]; ldo->init_data.consumer_supplies = &ldo->supply; if (!config.ena_gpio) ldo->init_data.constraints.valid_ops_mask = 0; } else { ldo->init_data = *pdata->ldo[id].init_data; } ldo->regulator = devm_regulator_register(&pdev->dev, &wm8994_ldo_desc[id], &config); if (IS_ERR(ldo->regulator)) { ret = PTR_ERR(ldo->regulator); dev_err(wm8994->dev, "Failed to register LDO%d: %d\n", id + 1, ret); goto err; } platform_set_drvdata(pdev, ldo); return 0; err: return ret; } static struct platform_driver wm8994_ldo_driver = { .probe = wm8994_ldo_probe, .driver = { .name = "wm8994-ldo", .owner = THIS_MODULE, }, }; module_platform_driver(wm8994_ldo_driver); /* Module information */ MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_DESCRIPTION("WM8994 LDO driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:wm8994-ldo");


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