Skip to content

L
linux
Commit 744fc2da authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Lee Jones
Browse files
Options

backlight: Remove pxa tosa support 

The PXA tosa machine was removed, so this backlight driver is no
longer needed.
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Reviewed-by: default avatarDaniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: default avatarLee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230105134622.254560-10-arnd@kernel.org
parent 32fb2588
Hide whitespace changes
Inline Side-by-side
Showing with 0 additions and 480 deletions
drivers/video/backlight/Kconfig
View file @ 744fc2da
......@@ -90,13 +90,6 @@ config LCD_PLATFORM
This driver provides a platform-device registered LCD power
control interface.
config LCD_TOSA
tristate "Sharp SL-6000 LCD Driver"
depends on I2C && SPI && MACH_TOSA
help
If you have an Sharp SL-6000 Zaurus say Y to enable a driver
for its LCD.
config LCD_HP700
tristate "HP Jornada 700 series LCD Driver"
depends on SA1100_JORNADA720_SSP && !PREEMPTION
......@@ -288,13 +281,6 @@ config BACKLIGHT_APPLE
If you have an Intel-based Apple say Y to enable a driver for its
backlight.
config BACKLIGHT_TOSA
tristate "Sharp SL-6000 Backlight Driver"
depends on I2C && MACH_TOSA && LCD_TOSA
help
If you have an Sharp SL-6000 Zaurus say Y to enable a driver
for its backlight
config BACKLIGHT_QCOM_WLED
tristate "Qualcomm PMIC WLED Driver"
select REGMAP
......
drivers/video/backlight/Makefile
View file @ 744fc2da
......@@ -15,7 +15,6 @@ obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
obj-$(CONFIG_LCD_OTM3225A) += otm3225a.o
obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
obj-$(CONFIG_BACKLIGHT_88PM860X) += 88pm860x_bl.o
......@@ -53,7 +52,6 @@ obj-$(CONFIG_BACKLIGHT_QCOM_WLED) += qcom-wled.o
obj-$(CONFIG_BACKLIGHT_RT4831) += rt4831-backlight.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
obj-$(CONFIG_BACKLIGHT_ARCXCNN) += arcxcnn_bl.o
......
drivers/video/backlight/tosa_bl.c deleted 100644 → 0
View file @ 32fb2588
// SPDX-License-Identifier: GPL-2.0-only
/*
* LCD / Backlight control code for Sharp SL-6000x (tosa)
*
* Copyright (c) 2005 Dirk Opfer
* Copyright (c) 2007,2008 Dmitry Baryshkov
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/spi/spi.h>
#include <linux/i2c.h>
#include <linux/gpio/consumer.h>
#include <linux/fb.h>
#include <linux/backlight.h>
#include <linux/slab.h>
#include <asm/mach/sharpsl_param.h>
#include "tosa_bl.h"
#define COMADJ_DEFAULT 97
#define DAC_CH1 0
#define DAC_CH2 1
struct tosa_bl_data {
struct i2c_client *i2c;
struct backlight_device *bl;
struct gpio_desc *gpio;
int comadj;
};
static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)
{
struct spi_device *spi = dev_get_platdata(&data->i2c->dev);
i2c_smbus_write_byte_data(data->i2c, DAC_CH1, data->comadj);
/* SetBacklightDuty */
i2c_smbus_write_byte_data(data->i2c, DAC_CH2, (u8)(brightness & 0xff));
/* SetBacklightVR */
gpiod_set_value(data->gpio, brightness & 0x100);
tosa_bl_enable(spi, brightness);
}
static int tosa_bl_update_status(struct backlight_device *dev)
{
struct backlight_properties *props = &dev->props;
struct tosa_bl_data *data = bl_get_data(dev);
int power = max(props->power, props->fb_blank);
int brightness = props->brightness;
if (power)
brightness = 0;
tosa_bl_set_backlight(data, brightness);
return 0;
}
static int tosa_bl_get_brightness(struct backlight_device *dev)
{
struct backlight_properties *props = &dev->props;
return props->brightness;
}
static const struct backlight_ops bl_ops = {
.get_brightness = tosa_bl_get_brightness,
.update_status = tosa_bl_update_status,
};
static int tosa_bl_probe(struct i2c_client *client)
{
struct backlight_properties props;
struct tosa_bl_data *data;
int ret = 0;
data = devm_kzalloc(&client->dev, sizeof(struct tosa_bl_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
data->comadj = sharpsl_param.comadj == -1 ? COMADJ_DEFAULT : sharpsl_param.comadj;
data->gpio = devm_gpiod_get(&client->dev, "backlight", GPIOD_OUT_LOW);
ret = PTR_ERR_OR_ZERO(data->gpio);
if (ret) {
dev_dbg(&data->bl->dev, "Unable to request gpio!\n");
return ret;
}
i2c_set_clientdata(client, data);
data->i2c = client;
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW;
props.max_brightness = 512 - 1;
data->bl = devm_backlight_device_register(&client->dev, "tosa-bl",
&client->dev, data, &bl_ops,
&props);
if (IS_ERR(data->bl)) {
ret = PTR_ERR(data->bl);
goto err_reg;
}
data->bl->props.brightness = 69;
data->bl->props.power = FB_BLANK_UNBLANK;
backlight_update_status(data->bl);
return 0;
err_reg:
data->bl = NULL;
return ret;
}
static void tosa_bl_remove(struct i2c_client *client)
{
struct tosa_bl_data *data = i2c_get_clientdata(client);
data->bl = NULL;
}
#ifdef CONFIG_PM_SLEEP
static int tosa_bl_suspend(struct device *dev)
{
struct tosa_bl_data *data = dev_get_drvdata(dev);
tosa_bl_set_backlight(data, 0);
return 0;
}
static int tosa_bl_resume(struct device *dev)
{
struct tosa_bl_data *data = dev_get_drvdata(dev);
backlight_update_status(data->bl);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(tosa_bl_pm_ops, tosa_bl_suspend, tosa_bl_resume);
static const struct i2c_device_id tosa_bl_id[] = {
{ "tosa-bl", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, tosa_bl_id);
static struct i2c_driver tosa_bl_driver = {
.driver = {
.name = "tosa-bl",
.pm = &tosa_bl_pm_ops,
},
.probe_new = tosa_bl_probe,
.remove = tosa_bl_remove,
.id_table = tosa_bl_id,
};
module_i2c_driver(tosa_bl_driver);
MODULE_AUTHOR("Dmitry Baryshkov");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("LCD/Backlight control for Sharp SL-6000 PDA");
drivers/video/backlight/tosa_bl.h deleted 100644 → 0
View file @ 32fb2588
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _TOSA_BL_H
#define _TOSA_BL_H
struct spi_device;
extern int tosa_bl_enable(struct spi_device *spi, int enable);
#endif
drivers/video/backlight/tosa_lcd.c deleted 100644 → 0
View file @ 32fb2588
// SPDX-License-Identifier: GPL-2.0-only
/*
* LCD / Backlight control code for Sharp SL-6000x (tosa)
*
* Copyright (c) 2005 Dirk Opfer
* Copyright (c) 2007,2008 Dmitry Baryshkov
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/spi/spi.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <linux/lcd.h>
#include <linux/fb.h>
#include <asm/mach/sharpsl_param.h>
#include "tosa_bl.h"
#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
#define TG_REG0_VQV 0x0001
#define TG_REG0_COLOR 0x0002
#define TG_REG0_UD 0x0004
#define TG_REG0_LR 0x0008
/*
* Timing Generator
*/
#define TG_PNLCTL 0x00
#define TG_TPOSCTL 0x01
#define TG_DUTYCTL 0x02
#define TG_GPOSR 0x03
#define TG_GPODR1 0x04
#define TG_GPODR2 0x05
#define TG_PINICTL 0x06
#define TG_HPOSCTL 0x07
#define DAC_BASE 0x4e
struct tosa_lcd_data {
struct spi_device *spi;
struct lcd_device *lcd;
struct i2c_client *i2c;
struct gpio_desc *gpiod_tg;
int lcd_power;
bool is_vga;
};
static int tosa_tg_send(struct spi_device *spi, int adrs, uint8_t data)
{
u8 buf[1];
struct spi_message msg;
struct spi_transfer xfer = {
.len = 1,
.cs_change = 0,
.tx_buf = buf,
};
buf[0] = ((adrs & 0x07) << 5) | (data & 0x1f);
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
return spi_sync(spi, &msg);
}
int tosa_bl_enable(struct spi_device *spi, int enable)
{
/* bl_enable GP04=1 otherwise GP04=0*/
return tosa_tg_send(spi, TG_GPODR2, enable ? 0x01 : 0x00);
}
EXPORT_SYMBOL(tosa_bl_enable);
static void tosa_lcd_tg_init(struct tosa_lcd_data *data)
{
/* TG on */
gpiod_set_value(data->gpiod_tg, 0);
mdelay(60);
/* delayed 0clk TCTL signal for VGA */
tosa_tg_send(data->spi, TG_TPOSCTL, 0x00);
/* GPOS0=powercontrol, GPOS1=GPIO, GPOS2=TCTL */
tosa_tg_send(data->spi, TG_GPOSR, 0x02);
}
static void tosa_lcd_tg_on(struct tosa_lcd_data *data)
{
struct spi_device *spi = data->spi;
int value = TG_REG0_COLOR | TG_REG0_UD | TG_REG0_LR;
if (data->is_vga)
value |= TG_REG0_VQV;
tosa_tg_send(spi, TG_PNLCTL, value);
/* TG LCD pannel power up */
tosa_tg_send(spi, TG_PINICTL, 0x4);
mdelay(50);
/* TG LCD GVSS */
tosa_tg_send(spi, TG_PINICTL, 0x0);
if (IS_ERR_OR_NULL(data->i2c)) {
/*
* after the pannel is powered up the first time,
* we can access the i2c bus so probe for the DAC
*/
struct i2c_adapter *adap = i2c_get_adapter(0);
struct i2c_board_info info = {
.dev_name = "tosa-bl",
.type = "tosa-bl",
.addr = DAC_BASE,
.platform_data = data->spi,
};
data->i2c = i2c_new_client_device(adap, &info);
}
}
static void tosa_lcd_tg_off(struct tosa_lcd_data *data)
{
struct spi_device *spi = data->spi;
/* TG LCD VHSA off */
tosa_tg_send(spi, TG_PINICTL, 0x4);
mdelay(50);
/* TG LCD signal off */
tosa_tg_send(spi, TG_PINICTL, 0x6);
mdelay(50);
/* TG Off */
gpiod_set_value(data->gpiod_tg, 1);
mdelay(100);
}
int tosa_lcd_set_power(struct lcd_device *lcd, int power)
{
struct tosa_lcd_data *data = lcd_get_data(lcd);
if (POWER_IS_ON(power) && !POWER_IS_ON(data->lcd_power))
tosa_lcd_tg_on(data);
if (!POWER_IS_ON(power) && POWER_IS_ON(data->lcd_power))
tosa_lcd_tg_off(data);
data->lcd_power = power;
return 0;
}
static int tosa_lcd_get_power(struct lcd_device *lcd)
{
struct tosa_lcd_data *data = lcd_get_data(lcd);
return data->lcd_power;
}
static int tosa_lcd_set_mode(struct lcd_device *lcd, struct fb_videomode *mode)
{
struct tosa_lcd_data *data = lcd_get_data(lcd);
if (mode->xres == 320 || mode->yres == 320)
data->is_vga = false;
else
data->is_vga = true;
if (POWER_IS_ON(data->lcd_power))
tosa_lcd_tg_on(data);
return 0;
}
static struct lcd_ops tosa_lcd_ops = {
.set_power = tosa_lcd_set_power,
.get_power = tosa_lcd_get_power,
.set_mode = tosa_lcd_set_mode,
};
static int tosa_lcd_probe(struct spi_device *spi)
{
int ret;
struct tosa_lcd_data *data;
data = devm_kzalloc(&spi->dev, sizeof(struct tosa_lcd_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
data->is_vga = true; /* default to VGA mode */
/*
* bits_per_word cannot be configured in platform data
*/
spi->bits_per_word = 8;
ret = spi_setup(spi);
if (ret < 0)
return ret;
data->spi = spi;
spi_set_drvdata(spi, data);
data->gpiod_tg = devm_gpiod_get(&spi->dev, "tg #pwr", GPIOD_OUT_LOW);
if (IS_ERR(data->gpiod_tg))
return PTR_ERR(data->gpiod_tg);
mdelay(60);
tosa_lcd_tg_init(data);
tosa_lcd_tg_on(data);
data->lcd = devm_lcd_device_register(&spi->dev, "tosa-lcd", &spi->dev,
data, &tosa_lcd_ops);
if (IS_ERR(data->lcd)) {
ret = PTR_ERR(data->lcd);
data->lcd = NULL;
goto err_register;
}
return 0;
err_register:
tosa_lcd_tg_off(data);
return ret;
}
static void tosa_lcd_remove(struct spi_device *spi)
{
struct tosa_lcd_data *data = spi_get_drvdata(spi);
i2c_unregister_device(data->i2c);
tosa_lcd_tg_off(data);
}
#ifdef CONFIG_PM_SLEEP
static int tosa_lcd_suspend(struct device *dev)
{
struct tosa_lcd_data *data = dev_get_drvdata(dev);
tosa_lcd_tg_off(data);
return 0;
}
static int tosa_lcd_resume(struct device *dev)
{
struct tosa_lcd_data *data = dev_get_drvdata(dev);
tosa_lcd_tg_init(data);
if (POWER_IS_ON(data->lcd_power))
tosa_lcd_tg_on(data);
else
tosa_lcd_tg_off(data);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(tosa_lcd_pm_ops, tosa_lcd_suspend, tosa_lcd_resume);
static struct spi_driver tosa_lcd_driver = {
.driver = {
.name = "tosa-lcd",
.pm = &tosa_lcd_pm_ops,
},
.probe = tosa_lcd_probe,
.remove = tosa_lcd_remove,
};
module_spi_driver(tosa_lcd_driver);
MODULE_AUTHOR("Dmitry Baryshkov");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("LCD/Backlight control for Sharp SL-6000 PDA");
MODULE_ALIAS("spi:tosa-lcd");
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7