^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2020 Marek Vasut <marex@denx.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Based on rpi_touchscreen.c by Eric Anholt <eric@anholt.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/backlight.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/gpio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/regulator/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/regulator/machine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/regulator/of_regulator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /* I2C registers of the Atmel microcontroller. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define REG_ID 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define REG_PORTA 0x81
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define REG_PORTA_HF BIT(2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define REG_PORTA_VF BIT(3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define REG_PORTB 0x82
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define REG_POWERON 0x85
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define REG_PWM 0x86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static const struct regmap_config attiny_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .max_register = REG_PWM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .cache_type = REGCACHE_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static int attiny_lcd_power_enable(struct regulator_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) unsigned int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) regmap_write(rdev->regmap, REG_POWERON, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) msleep(80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /* Wait for nPWRDWN to go low to indicate poweron is done. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) for (i = 0; i < 20; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) ret = regmap_read(rdev->regmap, REG_PORTB, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) if (data & BIT(0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) usleep_range(10000, 12000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) usleep_range(10000, 12000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) pr_err("%s: regmap_read_poll_timeout failed %d\n", __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) /* Default to the same orientation as the closed source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * firmware used for the panel. Runtime rotation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * configuration will be supported using VC4's plane
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * orientation bits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) regmap_write(rdev->regmap, REG_PORTA, BIT(2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static int attiny_lcd_power_disable(struct regulator_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) regmap_write(rdev->regmap, REG_PWM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) regmap_write(rdev->regmap, REG_POWERON, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) msleep(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static int attiny_lcd_power_is_enabled(struct regulator_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) unsigned int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) for (i = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) ret = regmap_read(rdev->regmap, REG_POWERON, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) usleep_range(10000, 12000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (!(data & BIT(0)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) for (i = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) ret = regmap_read(rdev->regmap, REG_PORTB, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) usleep_range(10000, 12000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return data & BIT(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static const struct regulator_init_data attiny_regulator_default = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .constraints = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .valid_ops_mask = REGULATOR_CHANGE_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static const struct regulator_ops attiny_regulator_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .enable = attiny_lcd_power_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .disable = attiny_lcd_power_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .is_enabled = attiny_lcd_power_is_enabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static const struct regulator_desc attiny_regulator = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .name = "tc358762-power",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .ops = &attiny_regulator_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static int attiny_update_status(struct backlight_device *bl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct regmap *regmap = bl_get_data(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int brightness = bl->props.brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (bl->props.power != FB_BLANK_UNBLANK ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) bl->props.fb_blank != FB_BLANK_UNBLANK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) brightness = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) for (i = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) ret = regmap_write(regmap, REG_PWM, brightness);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static int attiny_get_brightness(struct backlight_device *bl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct regmap *regmap = bl_get_data(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) int ret, brightness, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) for (i = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ret = regmap_read(regmap, REG_PWM, &brightness);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) return brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static const struct backlight_ops attiny_bl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) .update_status = attiny_update_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .get_brightness = attiny_get_brightness,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * I2C driver interface functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static int attiny_i2c_probe(struct i2c_client *i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct backlight_properties props = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct regulator_config config = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) struct backlight_device *bl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) struct regulator_dev *rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) unsigned int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) regmap = devm_regmap_init_i2c(i2c, &attiny_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (IS_ERR(regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) ret = PTR_ERR(regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) ret = regmap_read(regmap, REG_ID, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) dev_err(&i2c->dev, "Failed to read REG_ID reg: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) switch (data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) case 0xde: /* ver 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) case 0xc3: /* ver 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) dev_err(&i2c->dev, "Unknown Atmel firmware revision: 0x%02x\n", data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) regmap_write(regmap, REG_POWERON, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) msleep(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) config.dev = &i2c->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) config.regmap = regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) config.of_node = i2c->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) config.init_data = &attiny_regulator_default;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) rdev = devm_regulator_register(&i2c->dev, &attiny_regulator, &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) if (IS_ERR(rdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) dev_err(&i2c->dev, "Failed to register ATTINY regulator\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return PTR_ERR(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) props.type = BACKLIGHT_RAW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) props.max_brightness = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) bl = devm_backlight_device_register(&i2c->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) "7inch-touchscreen-panel-bl",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) &i2c->dev, regmap, &attiny_bl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) &props);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) if (IS_ERR(bl))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) return PTR_ERR(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) bl->props.brightness = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static const struct of_device_id attiny_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) { .compatible = "raspberrypi,7inch-touchscreen-panel-regulator" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) MODULE_DEVICE_TABLE(of, attiny_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static struct i2c_driver attiny_regulator_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .name = "rpi_touchscreen_attiny",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) .of_match_table = of_match_ptr(attiny_dt_ids),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) .probe = attiny_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) module_i2c_driver(attiny_regulator_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) MODULE_DESCRIPTION("Regulator device driver for Raspberry Pi 7-inch touchscreen");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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