diff options
Diffstat (limited to 'packages/linux/linux-openzaurus-2.6.18/tosa-lcdnoise-r1.patch')
| -rw-r--r-- | packages/linux/linux-openzaurus-2.6.18/tosa-lcdnoise-r1.patch | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/packages/linux/linux-openzaurus-2.6.18/tosa-lcdnoise-r1.patch b/packages/linux/linux-openzaurus-2.6.18/tosa-lcdnoise-r1.patch new file mode 100644 index 0000000000..624098bc64 --- /dev/null +++ b/packages/linux/linux-openzaurus-2.6.18/tosa-lcdnoise-r1.patch @@ -0,0 +1,157 @@ +Index: linux-2.6.18/arch/arm/mach-pxa/tosa.c +=================================================================== +--- linux-2.6.18.orig/arch/arm/mach-pxa/tosa.c 2006-09-20 17:14:14.000000000 +0200 ++++ linux-2.6.18/arch/arm/mach-pxa/tosa.c 2006-09-20 17:14:43.000000000 +0200 +@@ -2,6 +2,7 @@ + * Support for Sharp SL-C6000x PDAs + * Model: (Tosa) + * ++ * Copyright (c) 2006 Wolfson Microelectronics PLC. + * Copyright (c) 2005 Dirk Opfer + * + * Based on code written by Sharp/Lineo for 2.4 kernels +@@ -47,6 +48,8 @@ + #include <asm/hardware/tmio.h> + #include <asm/mach/sharpsl_param.h> + ++#include <linux/wm97xx.h> ++ + #include "generic.h" + + /* +@@ -429,6 +432,16 @@ + }, + }; + ++ ++/* ++ * Tosa Touchscreen device ++ */ ++ ++static struct wm97xx_machinfo tosa_ts_machinfo = { ++ .get_hsync_time = tosa_get_hsync_time, ++ .wait_hsync = tosa_wait_hsync, ++}; ++ + /* + * Tosa Blueooth + */ +@@ -458,6 +471,7 @@ + GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET); + + mdelay(1000); ++ wm97xx_unset_machinfo(); + arm_machine_restart('h'); + } + +@@ -503,6 +517,8 @@ + platform_scoop_config = &tosa_pcmcia_config; + + platform_add_devices(devices, ARRAY_SIZE(devices)); ++ ++ wm97xx_set_machinfo(&tosa_ts_machinfo); + } + + static void __init fixup_tosa(struct machine_desc *desc, +Index: linux-2.6.18/arch/arm/mach-pxa/tosa_lcd.c +=================================================================== +--- linux-2.6.18.orig/arch/arm/mach-pxa/tosa_lcd.c 2006-09-20 17:14:14.000000000 +0200 ++++ linux-2.6.18/arch/arm/mach-pxa/tosa_lcd.c 2006-09-20 17:14:15.000000000 +0200 +@@ -1,6 +1,7 @@ + /* + * LCD / Backlight control code for Sharp SL-6000x (tosa) + * ++ * Copyright (c) 2006 Wolfson Microelectronics PLC. + * Copyright (c) 2005 Dirk Opfer + * + * This program is free software; you can redistribute it and/or modify +@@ -59,6 +60,8 @@ + static struct ssp_dev tosa_nssp_dev; + static struct ssp_state tosa_nssp_state; + static spinlock_t tosa_nssp_lock; ++static int blanked; ++static unsigned long hsync_time; + + static unsigned short normal_i2c[] = { + DAC_BASE, +@@ -130,6 +133,17 @@ + pxa_nssp_output(TG_GPOSR,0x02); /* GPOS0=powercontrol, GPOS1=GPIO, GPOS2=TCTL */ + } + ++static unsigned long calc_hsync_time(const struct fb_videomode *mode) { ++ /* The 25 and 44 'magic numbers' are from Sharp's 2.4 patches */ ++ if (mode->yres == 640) { ++ return 25; ++ } ++ if (mode->yres == 320) { ++ return 44; ++ } ++ return 0; ++} ++ + static void tosa_lcd_tg_on(struct device *dev, const struct fb_videomode *mode) + { + const int value = TG_REG0_COLOR | TG_REG0_UD | TG_REG0_LR; +@@ -154,6 +168,8 @@ + /* set common voltage */ + i2c_smbus_write_byte_data(tosa_i2c_dac, DAC_CH1, comadj); + ++ blanked = 0; ++ hsync_time = calc_hsync_time(mode); + } + + static void tosa_lcd_tg_off(struct device *dev) +@@ -172,6 +188,8 @@ + + /* L3V Off */ + reset_scoop_gpio( &tosascoop_jc_device.dev,TOSA_SCOOP_JC_TC3693_L3V_ON); ++ ++ blanked = 1; + } + + static int tosa_detect_client(struct i2c_adapter* adapter, int address, int kind) { +@@ -238,6 +256,23 @@ + return 0; + } + ++unsigned long tosa_get_hsync_time(void) ++{ ++/* This method should eventually contain the correct algorithm for calculating ++ the hsync_time */ ++ if (blanked) ++ return 0; ++ else ++ return hsync_time; ++} ++ ++void tosa_wait_hsync(void) ++{ ++ /* Waits for a rising edge on the VGA line */ ++ while((GPLR(TOSA_GPIO_VGA_LINE) & GPIO_bit(TOSA_GPIO_VGA_LINE)) == 0); ++ while((GPLR(TOSA_GPIO_VGA_LINE) & GPIO_bit(TOSA_GPIO_VGA_LINE)) != 0); ++} ++ + static struct i2c_driver tosa_driver={ + .id = TOSA_LCD_I2C_DEVICEID, + .attach_adapter = tosa_attach_adapter, +Index: linux-2.6.18/include/asm-arm/arch-pxa/tosa.h +=================================================================== +--- linux-2.6.18.orig/include/asm-arm/arch-pxa/tosa.h 2006-09-20 17:14:13.000000000 +0200 ++++ linux-2.6.18/include/asm-arm/arch-pxa/tosa.h 2006-09-20 17:14:15.000000000 +0200 +@@ -1,6 +1,7 @@ + /* + * Hardware specific definitions for Sharp SL-C6000x series of PDAs + * ++ * Copyright (c) 2006 Wolfson Microelectronics PLC. + * Copyright (c) 2005 Dirk Opfer + * + * Based on Sharp's 2.4 kernel patches +@@ -187,4 +188,8 @@ + extern struct platform_device tosascoop_jc_device; + extern struct platform_device tosascoop_device; + extern struct platform_device tc6393_device; ++ ++unsigned long tosa_get_hsync_time(void); ++void tosa_wait_hsync(void); ++ + #endif /* _ASM_ARCH_TOSA_H_ */ |