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Diffstat (limited to 'target/linux/xburst/patches-2.6.34/101-lcm.patch')
-rw-r--r--target/linux/xburst/patches-2.6.34/101-lcm.patch304
1 files changed, 0 insertions, 304 deletions
diff --git a/target/linux/xburst/patches-2.6.34/101-lcm.patch b/target/linux/xburst/patches-2.6.34/101-lcm.patch
deleted file mode 100644
index 2b17c8a448..0000000000
--- a/target/linux/xburst/patches-2.6.34/101-lcm.patch
+++ /dev/null
@@ -1,304 +0,0 @@
-From baf5f6c4f4ec0caf5240b452b75eeab2f96d8bd4 Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 24 Apr 2010 12:20:56 +0200
-Subject: [PATCH] Add gpm940b0 lcd driver
-
----
- drivers/video/backlight/Kconfig | 7 +
- drivers/video/backlight/Makefile | 1 +
- drivers/video/backlight/gpm940b0.c | 253 ++++++++++++++++++++++++++++++++++++
- 3 files changed, 261 insertions(+), 0 deletions(-)
- create mode 100644 drivers/video/backlight/gpm940b0.c
-
-diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
-index c025c84..0a61f91 100644
---- a/drivers/video/backlight/Kconfig
-+++ b/drivers/video/backlight/Kconfig
-@@ -107,6 +107,13 @@ config LCD_HP700
- If you have an HP Jornada 700 series handheld (710/720/728)
- say Y to enable LCD control driver.
-
-+config LCD_GPM940B0
-+ tristate "Giantplus GPM940B0 LCD and backlight driver"
-+ depends on LCD_CLASS_DEVICE && SPI
-+ default n
-+ help
-+ LCD and backlight driver for the Giantplus GPM940B0 LCD module.
-+
- #
- # Backlight
- #
-diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
-index 09d1f14..a03ec9c 100644
---- a/drivers/video/backlight/Makefile
-+++ b/drivers/video/backlight/Makefile
-@@ -11,6 +11,7 @@ obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
- obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
- obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
- obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
-+obj-$(CONFIG_LCD_GPM940B0) += gpm940b0.o
-
- obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
- obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
-diff --git a/drivers/video/backlight/gpm940b0.c b/drivers/video/backlight/gpm940b0.c
-new file mode 100644
-index 0000000..879e3ad
---- /dev/null
-+++ b/drivers/video/backlight/gpm940b0.c
-@@ -0,0 +1,253 @@
-+/*
-+ * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
-+ * Driver for Giantplus GPM940B0 LCD
-+ *
-+ * 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.
-+ *
-+ * You should have received a copy of the GNU General Public License along
-+ * with this program; if not, write to the Free Software Foundation, Inc.,
-+ * 675 Mass Ave, Cambridge, MA 02139, USA.
-+ *
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/spi/spi.h>
-+#include <linux/lcd.h>
-+#include <linux/backlight.h>
-+#include <linux/delay.h>
-+
-+struct gpm940b0 {
-+ struct spi_device *spi;
-+ struct lcd_device *lcd;
-+ struct backlight_device *bl;
-+ unsigned enabled:1;
-+};
-+
-+static int gpm940b0_write_reg(struct spi_device *spi, uint8_t reg,
-+ uint8_t data)
-+{
-+ uint8_t buf[2];
-+ buf[0] = ((reg & 0x40) << 1) | (reg & 0x3f);
-+ buf[1] = data;
-+
-+ return spi_write(spi, buf, sizeof(buf));
-+}
-+
-+static void gpm940b0_power_disable(struct spi_device *spi)
-+{
-+ int ret = gpm940b0_write_reg(spi, 0x5, 0xc6) ;
-+ if (ret < 0)
-+ dev_err(&spi->dev, "Failed to disable power: %d\n", ret);
-+}
-+
-+static void gpm940b0_power_enable(struct spi_device *spi)
-+{
-+ gpm940b0_write_reg(spi, 0x5, 0xc7);
-+}
-+
-+
-+static int gpm940b0_set_power(struct lcd_device *lcd, int power)
-+{
-+ struct gpm940b0 *gpm940b0 = lcd_get_data(lcd);
-+
-+ switch (power) {
-+ case FB_BLANK_UNBLANK:
-+ mdelay(20);
-+ gpm940b0->enabled = 1;
-+ gpm940b0_power_enable(gpm940b0->spi);
-+ break;
-+ default:
-+ gpm940b0->enabled = 0;
-+ gpm940b0_power_disable(gpm940b0->spi);
-+ mdelay(20);
-+ break;
-+ }
-+ return 0;
-+}
-+
-+static int gpm940b0_set_contrast(struct lcd_device *lcd, int contrast)
-+{
-+ struct gpm940b0 *gpm940b0 = lcd_get_data(lcd);
-+ gpm940b0_write_reg(gpm940b0->spi, 0x0d, contrast);
-+ return 0;
-+}
-+
-+static int gpm940b0_set_mode(struct lcd_device *lcd, struct fb_videomode *mode)
-+{
-+ if (mode->xres != 320 && mode->yres != 240)
-+ return -EINVAL;
-+
-+ return 0;
-+}
-+
-+static ssize_t reg_write(struct device *dev, struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ char *buf2;
-+ uint32_t reg = simple_strtoul(buf, &buf2, 10);
-+ uint32_t val = simple_strtoul(buf2 + 1, NULL, 10);
-+ struct gpm940b0 *gpm940b0 = dev_get_drvdata(dev);
-+
-+ if (reg < 0 || val < 0)
-+ return -EINVAL;
-+
-+ gpm940b0_write_reg(gpm940b0->spi, reg, val);
-+ return count;
-+}
-+
-+static DEVICE_ATTR(reg, 0644, NULL, reg_write);
-+
-+static ssize_t gpm940b0_show_brightness(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ int rc = -ENXIO;
-+
-+ return rc;
-+}
-+
-+static ssize_t gpm940b0_store_brightness(struct device *dev,
-+ struct device_attribute *attr, const char *buf, size_t count)
-+{
-+ char *endp;
-+ struct lcd_device *ld = to_lcd_device(dev);
-+ struct gpm940b0 *gpm940b0 = lcd_get_data(ld);
-+ int brightness = simple_strtoul(buf, &endp, 0);
-+
-+ if (brightness > 255 || brightness < 0)
-+ return -EINVAL;
-+
-+ gpm940b0_write_reg(gpm940b0->spi, 0x3, brightness);
-+
-+ return count;
-+}
-+
-+
-+static DEVICE_ATTR(brightness, 0644, gpm940b0_show_brightness,
-+ gpm940b0_store_brightness);
-+
-+static struct lcd_ops gpm940b0_lcd_ops = {
-+ .set_power = gpm940b0_set_power,
-+ .set_contrast = gpm940b0_set_contrast,
-+ .set_mode = gpm940b0_set_mode,
-+};
-+
-+static int __devinit gpm940b0_probe(struct spi_device *spi)
-+{
-+ int ret;
-+ struct gpm940b0 *gpm940b0;
-+
-+ gpm940b0 = kmalloc(sizeof(*gpm940b0), GFP_KERNEL);
-+
-+ spi->bits_per_word = 8;
-+ spi->mode = SPI_MODE_3 | SPI_3WIRE;
-+
-+ ret = spi_setup(spi);
-+ if (ret) {
-+ dev_err(&spi->dev, "Failed to setup spi\n");
-+ goto err_free_gpm940b0;
-+ }
-+
-+ gpm940b0->spi = spi;
-+
-+ gpm940b0->lcd = lcd_device_register("gpm940b0-lcd", &spi->dev, gpm940b0,
-+ &gpm940b0_lcd_ops);
-+
-+ if (IS_ERR(gpm940b0->lcd)) {
-+ ret = PTR_ERR(gpm940b0->lcd);
-+ dev_err(&spi->dev, "Failed to register lcd device: %d\n", ret);
-+ goto err_free_gpm940b0;
-+ }
-+
-+ gpm940b0->lcd->props.max_contrast = 255;
-+
-+ ret = device_create_file(&spi->dev, &dev_attr_reg);
-+ if (ret)
-+ goto err_unregister_lcd;
-+
-+ ret = device_create_file(&gpm940b0->lcd->dev, &dev_attr_brightness);
-+ if (ret)
-+ goto err_unregister_lcd;
-+
-+ gpm940b0->enabled = 1;
-+ dev_set_drvdata(&spi->dev, gpm940b0);
-+
-+ gpm940b0_write_reg(spi, 0x13, 0x01);
-+ gpm940b0_write_reg(spi, 0x5, 0xc7);
-+ return 0;
-+err_unregister_lcd:
-+ lcd_device_unregister(gpm940b0->lcd);
-+err_free_gpm940b0:
-+ kfree(gpm940b0);
-+ return ret;
-+}
-+
-+static int __devexit gpm940b0_remove(struct spi_device *spi)
-+{
-+ struct gpm940b0 *gpm940b0 = spi_get_drvdata(spi);
-+#if 0
-+ if (gpm940b0->bl)
-+ backlight_device_unregister(gpm940b0->bl);
-+#endif
-+
-+ lcd_device_unregister(gpm940b0->lcd);
-+
-+ spi_set_drvdata(spi, NULL);
-+ kfree(gpm940b0);
-+ return 0;
-+}
-+
-+#ifdef CONFIG_PM
-+
-+static int gpm940b0_suspend(struct spi_device *spi, pm_message_t state)
-+{
-+ struct gpm940b0 *gpm940b0 = spi_get_drvdata(spi);
-+ if (gpm940b0->enabled) {
-+ gpm940b0_power_disable(spi);
-+ mdelay(10);
-+ }
-+ return 0;
-+}
-+
-+static int gpm940b0_resume(struct spi_device *spi)
-+{
-+ struct gpm940b0 *gpm940b0 = spi_get_drvdata(spi);
-+ if (gpm940b0->enabled)
-+ gpm940b0_power_enable(spi);
-+ return 0;
-+}
-+
-+#else
-+#define gpm940b0_suspend NULL
-+#define gpm940b0_resume NULL
-+#endif
-+
-+static struct spi_driver gpm940b0_driver = {
-+ .driver = {
-+ .name = "gpm940b0",
-+ .owner = THIS_MODULE,
-+ },
-+ .probe = gpm940b0_probe,
-+ .remove = __devexit_p(gpm940b0_remove),
-+ .suspend = gpm940b0_suspend,
-+ .resume = gpm940b0_resume,
-+};
-+
-+static int __init gpm940b0_init(void)
-+{
-+ return spi_register_driver(&gpm940b0_driver);
-+}
-+module_init(gpm940b0_init);
-+
-+static void __exit gpm940b0_exit(void)
-+{
-+ return spi_unregister_driver(&gpm940b0_driver);
-+}
-+module_exit(gpm940b0_exit)
-+
-+MODULE_AUTHOR("Lars-Peter Clausen");
-+MODULE_LICENSE("GPL v2");
-+MODULE_DESCRIPTION("LCD and backlight controll for Giantplus GPM940B0");
-+MODULE_ALIAS("spi:gpm940b0");
---
-1.5.6.5
-
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-29 04:32:01 +0000