^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * LCD / Backlight control code for Sharp SL-6000x (tosa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2005 Dirk Opfer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2007,2008 Dmitry Baryshkov
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/spi/spi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/lcd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/fb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <asm/mach/sharpsl_param.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "tosa_bl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define TG_REG0_VQV 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define TG_REG0_COLOR 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define TG_REG0_UD 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define TG_REG0_LR 0x0008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * Timing Generator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define TG_PNLCTL 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define TG_TPOSCTL 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define TG_DUTYCTL 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define TG_GPOSR 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define TG_GPODR1 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define TG_GPODR2 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define TG_PINICTL 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define TG_HPOSCTL 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define DAC_BASE 0x4e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct tosa_lcd_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct spi_device *spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct lcd_device *lcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct i2c_client *i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct gpio_desc *gpiod_tg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int lcd_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) bool is_vga;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static int tosa_tg_send(struct spi_device *spi, int adrs, uint8_t data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) u8 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct spi_message msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct spi_transfer xfer = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .cs_change = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .tx_buf = buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) buf[0] = ((adrs & 0x07) << 5) | (data & 0x1f);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) spi_message_init(&msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) spi_message_add_tail(&xfer, &msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return spi_sync(spi, &msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int tosa_bl_enable(struct spi_device *spi, int enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* bl_enable GP04=1 otherwise GP04=0*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return tosa_tg_send(spi, TG_GPODR2, enable ? 0x01 : 0x00);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) EXPORT_SYMBOL(tosa_bl_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static void tosa_lcd_tg_init(struct tosa_lcd_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* TG on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) gpiod_set_value(data->gpiod_tg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) mdelay(60);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) /* delayed 0clk TCTL signal for VGA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) tosa_tg_send(data->spi, TG_TPOSCTL, 0x00);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) /* GPOS0=powercontrol, GPOS1=GPIO, GPOS2=TCTL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) tosa_tg_send(data->spi, TG_GPOSR, 0x02);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static void tosa_lcd_tg_on(struct tosa_lcd_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct spi_device *spi = data->spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) int value = TG_REG0_COLOR | TG_REG0_UD | TG_REG0_LR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (data->is_vga)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) value |= TG_REG0_VQV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) tosa_tg_send(spi, TG_PNLCTL, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /* TG LCD pannel power up */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) tosa_tg_send(spi, TG_PINICTL, 0x4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) mdelay(50);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /* TG LCD GVSS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) tosa_tg_send(spi, TG_PINICTL, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (IS_ERR_OR_NULL(data->i2c)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * after the pannel is powered up the first time,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * we can access the i2c bus so probe for the DAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct i2c_adapter *adap = i2c_get_adapter(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct i2c_board_info info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .dev_name = "tosa-bl",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .type = "tosa-bl",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .addr = DAC_BASE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .platform_data = data->spi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) data->i2c = i2c_new_client_device(adap, &info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^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 void tosa_lcd_tg_off(struct tosa_lcd_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct spi_device *spi = data->spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /* TG LCD VHSA off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) tosa_tg_send(spi, TG_PINICTL, 0x4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) mdelay(50);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) /* TG LCD signal off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) tosa_tg_send(spi, TG_PINICTL, 0x6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) mdelay(50);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) /* TG Off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) gpiod_set_value(data->gpiod_tg, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) mdelay(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) int tosa_lcd_set_power(struct lcd_device *lcd, int power)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct tosa_lcd_data *data = lcd_get_data(lcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) if (POWER_IS_ON(power) && !POWER_IS_ON(data->lcd_power))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) tosa_lcd_tg_on(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if (!POWER_IS_ON(power) && POWER_IS_ON(data->lcd_power))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) tosa_lcd_tg_off(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) data->lcd_power = power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static int tosa_lcd_get_power(struct lcd_device *lcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct tosa_lcd_data *data = lcd_get_data(lcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) return data->lcd_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static int tosa_lcd_set_mode(struct lcd_device *lcd, struct fb_videomode *mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct tosa_lcd_data *data = lcd_get_data(lcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (mode->xres == 320 || mode->yres == 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) data->is_vga = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) data->is_vga = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (POWER_IS_ON(data->lcd_power))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) tosa_lcd_tg_on(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static struct lcd_ops tosa_lcd_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .set_power = tosa_lcd_set_power,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) .get_power = tosa_lcd_get_power,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .set_mode = tosa_lcd_set_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) static int tosa_lcd_probe(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct tosa_lcd_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) data = devm_kzalloc(&spi->dev, sizeof(struct tosa_lcd_data),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) data->is_vga = true; /* default to VGA mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * bits_per_word cannot be configured in platform data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) spi->bits_per_word = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) ret = spi_setup(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) data->spi = spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) spi_set_drvdata(spi, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) data->gpiod_tg = devm_gpiod_get(&spi->dev, "tg #pwr", GPIOD_OUT_LOW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (IS_ERR(data->gpiod_tg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return PTR_ERR(data->gpiod_tg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) mdelay(60);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) tosa_lcd_tg_init(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) tosa_lcd_tg_on(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) data->lcd = devm_lcd_device_register(&spi->dev, "tosa-lcd", &spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) data, &tosa_lcd_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (IS_ERR(data->lcd)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) ret = PTR_ERR(data->lcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) data->lcd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) goto err_register;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) err_register:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) tosa_lcd_tg_off(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static int tosa_lcd_remove(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct tosa_lcd_data *data = spi_get_drvdata(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) i2c_unregister_device(data->i2c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) tosa_lcd_tg_off(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return 0;
^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) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) static int tosa_lcd_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) struct tosa_lcd_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) tosa_lcd_tg_off(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static int tosa_lcd_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct tosa_lcd_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) tosa_lcd_tg_init(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) if (POWER_IS_ON(data->lcd_power))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) tosa_lcd_tg_on(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) tosa_lcd_tg_off(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) static SIMPLE_DEV_PM_OPS(tosa_lcd_pm_ops, tosa_lcd_suspend, tosa_lcd_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static struct spi_driver tosa_lcd_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) .name = "tosa-lcd",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) .pm = &tosa_lcd_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) .probe = tosa_lcd_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) .remove = tosa_lcd_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) module_spi_driver(tosa_lcd_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) MODULE_AUTHOR("Dmitry Baryshkov");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) MODULE_DESCRIPTION("LCD/Backlight control for Sharp SL-6000 PDA");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) MODULE_ALIAS("spi:tosa-lcd");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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