backlight: Remove pxa tosa support
The PXA tosa machine was removed, so this backlight driver is no longer needed. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230105134622.254560-10-arnd@kernel.org
This commit is contained in:
Arnd Bergmann
Lee Jones
parent
32fb2588ce
commit
744fc2dada
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@ -90,13 +90,6 @@ config LCD_PLATFORM
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This driver provides a platform-device registered LCD power
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control interface.
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config LCD_TOSA
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tristate "Sharp SL-6000 LCD Driver"
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depends on I2C && SPI && MACH_TOSA
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help
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If you have an Sharp SL-6000 Zaurus say Y to enable a driver
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for its LCD.
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config LCD_HP700
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tristate "HP Jornada 700 series LCD Driver"
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depends on SA1100_JORNADA720_SSP && !PREEMPTION
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@ -288,13 +281,6 @@ config BACKLIGHT_APPLE
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If you have an Intel-based Apple say Y to enable a driver for its
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backlight.
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config BACKLIGHT_TOSA
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tristate "Sharp SL-6000 Backlight Driver"
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depends on I2C && MACH_TOSA && LCD_TOSA
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help
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If you have an Sharp SL-6000 Zaurus say Y to enable a driver
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for its backlight
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config BACKLIGHT_QCOM_WLED
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tristate "Qualcomm PMIC WLED Driver"
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select REGMAP
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@ -15,7 +15,6 @@ obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
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obj-$(CONFIG_LCD_OTM3225A) += otm3225a.o
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obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
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obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
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obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
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obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
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obj-$(CONFIG_BACKLIGHT_88PM860X) += 88pm860x_bl.o
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@ -53,7 +52,6 @@ obj-$(CONFIG_BACKLIGHT_QCOM_WLED) += qcom-wled.o
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obj-$(CONFIG_BACKLIGHT_RT4831) += rt4831-backlight.o
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obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
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obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
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obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
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obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
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obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
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obj-$(CONFIG_BACKLIGHT_ARCXCNN) += arcxcnn_bl.o
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@ -1,172 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* LCD / Backlight control code for Sharp SL-6000x (tosa)
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*
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* Copyright (c) 2005 Dirk Opfer
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* Copyright (c) 2007,2008 Dmitry Baryshkov
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/spi/spi.h>
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#include <linux/i2c.h>
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#include <linux/gpio/consumer.h>
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#include <linux/fb.h>
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#include <linux/backlight.h>
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#include <linux/slab.h>
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#include <asm/mach/sharpsl_param.h>
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#include "tosa_bl.h"
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#define COMADJ_DEFAULT 97
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#define DAC_CH1 0
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#define DAC_CH2 1
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struct tosa_bl_data {
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struct i2c_client *i2c;
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struct backlight_device *bl;
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struct gpio_desc *gpio;
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int comadj;
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};
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static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)
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{
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struct spi_device *spi = dev_get_platdata(&data->i2c->dev);
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i2c_smbus_write_byte_data(data->i2c, DAC_CH1, data->comadj);
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/* SetBacklightDuty */
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i2c_smbus_write_byte_data(data->i2c, DAC_CH2, (u8)(brightness & 0xff));
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/* SetBacklightVR */
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gpiod_set_value(data->gpio, brightness & 0x100);
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tosa_bl_enable(spi, brightness);
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}
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static int tosa_bl_update_status(struct backlight_device *dev)
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{
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struct backlight_properties *props = &dev->props;
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struct tosa_bl_data *data = bl_get_data(dev);
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int power = max(props->power, props->fb_blank);
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int brightness = props->brightness;
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if (power)
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brightness = 0;
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tosa_bl_set_backlight(data, brightness);
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return 0;
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}
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static int tosa_bl_get_brightness(struct backlight_device *dev)
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{
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struct backlight_properties *props = &dev->props;
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return props->brightness;
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}
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static const struct backlight_ops bl_ops = {
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.get_brightness = tosa_bl_get_brightness,
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.update_status = tosa_bl_update_status,
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};
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static int tosa_bl_probe(struct i2c_client *client)
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{
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struct backlight_properties props;
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struct tosa_bl_data *data;
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int ret = 0;
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data = devm_kzalloc(&client->dev, sizeof(struct tosa_bl_data),
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GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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data->comadj = sharpsl_param.comadj == -1 ? COMADJ_DEFAULT : sharpsl_param.comadj;
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data->gpio = devm_gpiod_get(&client->dev, "backlight", GPIOD_OUT_LOW);
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ret = PTR_ERR_OR_ZERO(data->gpio);
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if (ret) {
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dev_dbg(&data->bl->dev, "Unable to request gpio!\n");
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return ret;
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}
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i2c_set_clientdata(client, data);
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data->i2c = client;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = 512 - 1;
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data->bl = devm_backlight_device_register(&client->dev, "tosa-bl",
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&client->dev, data, &bl_ops,
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&props);
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if (IS_ERR(data->bl)) {
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ret = PTR_ERR(data->bl);
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goto err_reg;
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}
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data->bl->props.brightness = 69;
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data->bl->props.power = FB_BLANK_UNBLANK;
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backlight_update_status(data->bl);
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return 0;
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err_reg:
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data->bl = NULL;
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return ret;
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}
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static void tosa_bl_remove(struct i2c_client *client)
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{
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struct tosa_bl_data *data = i2c_get_clientdata(client);
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data->bl = NULL;
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}
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#ifdef CONFIG_PM_SLEEP
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static int tosa_bl_suspend(struct device *dev)
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{
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struct tosa_bl_data *data = dev_get_drvdata(dev);
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tosa_bl_set_backlight(data, 0);
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return 0;
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}
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static int tosa_bl_resume(struct device *dev)
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{
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struct tosa_bl_data *data = dev_get_drvdata(dev);
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backlight_update_status(data->bl);
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return 0;
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}
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#endif
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static SIMPLE_DEV_PM_OPS(tosa_bl_pm_ops, tosa_bl_suspend, tosa_bl_resume);
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static const struct i2c_device_id tosa_bl_id[] = {
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{ "tosa-bl", 0 },
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{ },
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};
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MODULE_DEVICE_TABLE(i2c, tosa_bl_id);
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static struct i2c_driver tosa_bl_driver = {
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.driver = {
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.name = "tosa-bl",
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.pm = &tosa_bl_pm_ops,
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},
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.probe_new = tosa_bl_probe,
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.remove = tosa_bl_remove,
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.id_table = tosa_bl_id,
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};
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module_i2c_driver(tosa_bl_driver);
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MODULE_AUTHOR("Dmitry Baryshkov");
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MODULE_LICENSE("GPL v2");
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MODULE_DESCRIPTION("LCD/Backlight control for Sharp SL-6000 PDA");
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@ -1,8 +0,0 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _TOSA_BL_H
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#define _TOSA_BL_H
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struct spi_device;
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extern int tosa_bl_enable(struct spi_device *spi, int enable);
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#endif
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@ -1,284 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* LCD / Backlight control code for Sharp SL-6000x (tosa)
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*
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* Copyright (c) 2005 Dirk Opfer
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* Copyright (c) 2007,2008 Dmitry Baryshkov
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/spi/spi.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/gpio/consumer.h>
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#include <linux/delay.h>
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#include <linux/lcd.h>
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#include <linux/fb.h>
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#include <asm/mach/sharpsl_param.h>
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#include "tosa_bl.h"
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#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
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#define TG_REG0_VQV 0x0001
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#define TG_REG0_COLOR 0x0002
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#define TG_REG0_UD 0x0004
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#define TG_REG0_LR 0x0008
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/*
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* Timing Generator
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*/
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#define TG_PNLCTL 0x00
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#define TG_TPOSCTL 0x01
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#define TG_DUTYCTL 0x02
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#define TG_GPOSR 0x03
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#define TG_GPODR1 0x04
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#define TG_GPODR2 0x05
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#define TG_PINICTL 0x06
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#define TG_HPOSCTL 0x07
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#define DAC_BASE 0x4e
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struct tosa_lcd_data {
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struct spi_device *spi;
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struct lcd_device *lcd;
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struct i2c_client *i2c;
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struct gpio_desc *gpiod_tg;
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int lcd_power;
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bool is_vga;
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};
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static int tosa_tg_send(struct spi_device *spi, int adrs, uint8_t data)
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{
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u8 buf[1];
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struct spi_message msg;
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struct spi_transfer xfer = {
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.len = 1,
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.cs_change = 0,
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.tx_buf = buf,
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};
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buf[0] = ((adrs & 0x07) << 5) | (data & 0x1f);
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spi_message_init(&msg);
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spi_message_add_tail(&xfer, &msg);
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return spi_sync(spi, &msg);
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}
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int tosa_bl_enable(struct spi_device *spi, int enable)
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{
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/* bl_enable GP04=1 otherwise GP04=0*/
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return tosa_tg_send(spi, TG_GPODR2, enable ? 0x01 : 0x00);
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}
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EXPORT_SYMBOL(tosa_bl_enable);
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static void tosa_lcd_tg_init(struct tosa_lcd_data *data)
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{
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/* TG on */
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gpiod_set_value(data->gpiod_tg, 0);
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mdelay(60);
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/* delayed 0clk TCTL signal for VGA */
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tosa_tg_send(data->spi, TG_TPOSCTL, 0x00);
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/* GPOS0=powercontrol, GPOS1=GPIO, GPOS2=TCTL */
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tosa_tg_send(data->spi, TG_GPOSR, 0x02);
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}
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static void tosa_lcd_tg_on(struct tosa_lcd_data *data)
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{
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struct spi_device *spi = data->spi;
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int value = TG_REG0_COLOR | TG_REG0_UD | TG_REG0_LR;
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if (data->is_vga)
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value |= TG_REG0_VQV;
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tosa_tg_send(spi, TG_PNLCTL, value);
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/* TG LCD pannel power up */
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tosa_tg_send(spi, TG_PINICTL, 0x4);
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mdelay(50);
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/* TG LCD GVSS */
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tosa_tg_send(spi, TG_PINICTL, 0x0);
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if (IS_ERR_OR_NULL(data->i2c)) {
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/*
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* after the pannel is powered up the first time,
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* we can access the i2c bus so probe for the DAC
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*/
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struct i2c_adapter *adap = i2c_get_adapter(0);
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struct i2c_board_info info = {
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.dev_name = "tosa-bl",
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.type = "tosa-bl",
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.addr = DAC_BASE,
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.platform_data = data->spi,
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};
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data->i2c = i2c_new_client_device(adap, &info);
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}
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}
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static void tosa_lcd_tg_off(struct tosa_lcd_data *data)
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{
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struct spi_device *spi = data->spi;
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/* TG LCD VHSA off */
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tosa_tg_send(spi, TG_PINICTL, 0x4);
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mdelay(50);
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/* TG LCD signal off */
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tosa_tg_send(spi, TG_PINICTL, 0x6);
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mdelay(50);
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/* TG Off */
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gpiod_set_value(data->gpiod_tg, 1);
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mdelay(100);
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}
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int tosa_lcd_set_power(struct lcd_device *lcd, int power)
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{
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struct tosa_lcd_data *data = lcd_get_data(lcd);
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if (POWER_IS_ON(power) && !POWER_IS_ON(data->lcd_power))
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tosa_lcd_tg_on(data);
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if (!POWER_IS_ON(power) && POWER_IS_ON(data->lcd_power))
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tosa_lcd_tg_off(data);
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data->lcd_power = power;
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return 0;
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}
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static int tosa_lcd_get_power(struct lcd_device *lcd)
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{
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struct tosa_lcd_data *data = lcd_get_data(lcd);
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return data->lcd_power;
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}
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static int tosa_lcd_set_mode(struct lcd_device *lcd, struct fb_videomode *mode)
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{
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struct tosa_lcd_data *data = lcd_get_data(lcd);
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if (mode->xres == 320 || mode->yres == 320)
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data->is_vga = false;
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else
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data->is_vga = true;
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if (POWER_IS_ON(data->lcd_power))
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tosa_lcd_tg_on(data);
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return 0;
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}
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static struct lcd_ops tosa_lcd_ops = {
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.set_power = tosa_lcd_set_power,
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.get_power = tosa_lcd_get_power,
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.set_mode = tosa_lcd_set_mode,
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};
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static int tosa_lcd_probe(struct spi_device *spi)
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{
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int ret;
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struct tosa_lcd_data *data;
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data = devm_kzalloc(&spi->dev, sizeof(struct tosa_lcd_data),
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GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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data->is_vga = true; /* default to VGA mode */
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/*
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* bits_per_word cannot be configured in platform data
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*/
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spi->bits_per_word = 8;
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ret = spi_setup(spi);
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if (ret < 0)
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return ret;
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data->spi = spi;
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spi_set_drvdata(spi, data);
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data->gpiod_tg = devm_gpiod_get(&spi->dev, "tg #pwr", GPIOD_OUT_LOW);
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if (IS_ERR(data->gpiod_tg))
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return PTR_ERR(data->gpiod_tg);
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mdelay(60);
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tosa_lcd_tg_init(data);
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tosa_lcd_tg_on(data);
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data->lcd = devm_lcd_device_register(&spi->dev, "tosa-lcd", &spi->dev,
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data, &tosa_lcd_ops);
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if (IS_ERR(data->lcd)) {
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ret = PTR_ERR(data->lcd);
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data->lcd = NULL;
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goto err_register;
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}
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return 0;
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err_register:
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tosa_lcd_tg_off(data);
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return ret;
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}
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static void tosa_lcd_remove(struct spi_device *spi)
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{
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struct tosa_lcd_data *data = spi_get_drvdata(spi);
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i2c_unregister_device(data->i2c);
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tosa_lcd_tg_off(data);
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}
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|
||||
#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");
|
||||
Loading…
Reference in New Issue