From 6a402ce57849a03bc1cf219666a3eccec64ce39e Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 5 Feb 2007 15:08:17 +0000 Subject: linux-2.6.19+2.6.20-rc4 -> 2.6.20 git-svn-id: https://svn.o-hand.com/repos/poky/trunk@1261 311d38ba-8fff-0310-9ca6-ca027cbcb966 --- .../wm97xx-lcdnoise-r0.patch | 208 --------------------- 1 file changed, 208 deletions(-) delete mode 100644 meta/packages/linux/linux-rp-2.6.19+2.6.20-rc4/wm97xx-lcdnoise-r0.patch (limited to 'meta/packages/linux/linux-rp-2.6.19+2.6.20-rc4/wm97xx-lcdnoise-r0.patch') diff --git a/meta/packages/linux/linux-rp-2.6.19+2.6.20-rc4/wm97xx-lcdnoise-r0.patch b/meta/packages/linux/linux-rp-2.6.19+2.6.20-rc4/wm97xx-lcdnoise-r0.patch deleted file mode 100644 index 191de3af2..000000000 --- a/meta/packages/linux/linux-rp-2.6.19+2.6.20-rc4/wm97xx-lcdnoise-r0.patch +++ /dev/null @@ -1,208 +0,0 @@ -Index: linux-tosa/drivers/input/touchscreen/wm9712.c -=================================================================== ---- linux-tosa.orig/drivers/input/touchscreen/wm9712.c 2006-08-29 16:52:36.008543280 +0100 -+++ linux-tosa/drivers/input/touchscreen/wm9712.c 2006-08-29 16:52:50.923275896 +0100 -@@ -1,7 +1,7 @@ - /* - * wm9712.c -- Codec driver for Wolfson WM9712 AC97 Codecs. - * -- * Copyright 2003, 2004, 2005 Wolfson Microelectronics PLC. -+ * Copyright 2003, 2004, 2005, 2006 Wolfson Microelectronics PLC. - * Author: Liam Girdwood - * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com - * Parts Copyright : Ian Molton -@@ -13,6 +13,12 @@ - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * -+ * Revision history -+ * 4th Jul 2005 Initial version. -+ * 29th Aug 2006 Mike Arthur -+ * Added fixes for Sharp SL-6000 (Tosa) LCD noise causing -+ * touchscreen interference. -+ * - */ - - #include -@@ -28,6 +34,10 @@ - #define WM9705_VERSION "0.60" - #define DEFAULT_PRESSURE 0xb0c0 - -+#define CCNT(a) asm volatile ("mrc p14, 0, %0, C1, C1, 0" : "=r"(a)) -+#define CCNT_ON() asm("mcr p14, 0, %0, C0, C0, 0" : : "r"(1)) -+#define CCNT_OFF() asm("mcr p14, 0, %0, C0, C0, 0" : : "r"(1)) -+ - /* - * Debug - */ -@@ -243,6 +253,36 @@ - return wm->dig[2] & WM9712_PDEN; - } - -+ -+#ifdef CONFIG_MACH_TOSA -+/* On the Sharp SL-6000 (Tosa), due to a noisy LCD, we need to perform a wait -+ * before sampling the Y axis of the touchscreen */ -+static inline void wm9712_lcd_sync_on(struct wm97xx* wm, int adcsel) { -+ unsigned long timer1 = 0, timer2 = 0, wait_time = 0; -+ if (adcsel == WM97XX_ADCSEL_Y) { -+ wait_time = wm97xx_calc_lcd_waittime(wm); -+ -+ CCNT_ON(); -+ -+ if (wait_time) { -+ /* wait for LCD rising edge */ -+ wm_machinfo->wait_hsync(); -+ /* get clock */ -+ CCNT(timer1); -+ CCNT(timer2); -+ -+ while ((timer2 - timer1) < wait_time) { -+ CCNT(timer2); -+ } -+ } -+ } -+} -+ -+static inline void wm9712_lcd_sync_off(void) { -+ CCNT_OFF(); -+} -+#endif -+ - /* - * Read a sample from the WM9712 adc in polling mode. - */ -@@ -260,6 +300,9 @@ - /* set up digitiser */ - if (adcsel & 0x8000) - adcsel = ((adcsel & 0x7fff) + 3) << 12; -+ #ifdef CONFIG_MACH_TOSA -+ wm9712_lcd_sync_on(wm, adcsel); -+ #endif - wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, adcsel | WM97XX_POLL | WM97XX_DELAY(delay)); - - /* wait 3 AC97 time slots + delay for conversion */ -@@ -282,6 +325,10 @@ - - *sample = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); - -+ #ifdef CONFIG_MACH_TOSA -+ wm9712_lcd_sync_off(); -+ #endif -+ - /* check we have correct sample */ - if ((*sample & WM97XX_ADCSEL_MASK) != adcsel) { - dbg ("adc wrong sample, read %x got %x", adcsel, -@@ -303,11 +350,12 @@ - static int wm9712_poll_touch(struct wm97xx* wm, struct wm97xx_data *data) - { - int rc; -- - if ((rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_X, &data->x)) != RC_VALID) - return rc; -+ - if ((rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_Y, &data->y)) != RC_VALID) - return rc; -+ - if (pil && !five_wire) { - if ((rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_PRES, &data->p)) != RC_VALID) - return rc; -Index: linux-tosa/drivers/input/touchscreen/wm97xx-core.c -=================================================================== ---- linux-tosa.orig/drivers/input/touchscreen/wm97xx-core.c 2006-08-29 16:52:36.008543280 +0100 -+++ linux-tosa/drivers/input/touchscreen/wm97xx-core.c 2006-08-29 16:52:50.924275744 +0100 -@@ -2,7 +2,7 @@ - * wm97xx-core.c -- Touch screen driver core for Wolfson WM9705, WM9712 - * and WM9713 AC97 Codecs. - * -- * Copyright 2003, 2004, 2005 Wolfson Microelectronics PLC. -+ * Copyright 2003, 2004, 2005, 2006 Wolfson Microelectronics PLC. - * Author: Liam Girdwood - * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com - * Parts Copyright : Ian Molton -@@ -67,6 +67,9 @@ - * GPIOs) and 2.6 power management. - * 29th Nov 2004 Added WM9713 support. - * 4th Jul 2005 Moved codec specific code out to seperate files. -+ * 29th Aug 2006 Mike Arthur -+ * Added fixes for Sharp SL-6000 (Tosa) LCD noise causing -+ * touchscreen interference. - */ - - #include -@@ -94,6 +97,7 @@ - static DECLARE_MUTEX(gpio_sem); - static LIST_HEAD(wm97xx_misc_list); - static struct wm97xx* wm_codec = NULL; -+struct wm97xx_machinfo *wm_machinfo; - - /* - * WM97xx - enable/disable AUX ADC sysfs -@@ -832,6 +836,23 @@ - mdev->remove(wm_codec); - } - -+#ifdef CONFIG_MACH_TOSA -+/* On the Sharp SL-6000 (Tosa), due to a noisy LCD, we need to perform a wait -+ * before sampling the Y axis of the touchscreen */ -+unsigned long wm97xx_calc_lcd_waittime(struct wm97xx *wm) { -+ unsigned long hsync_time = wm_machinfo->get_hsync_time(); -+ return hsync_time; -+} -+ -+void wm97xx_set_machinfo(struct wm97xx_machinfo *machinfo) { -+ wm_machinfo = machinfo; -+} -+ -+void wm97xx_unset_machinfo() { -+ wm_machinfo = NULL; -+} -+#endif -+ - static struct device_driver wm97xx_driver = { - .name = "ac97", - .bus = &ac97_bus_type, -@@ -861,6 +882,9 @@ - EXPORT_SYMBOL_GPL(wm97xx_reg_write); - EXPORT_SYMBOL_GPL(wm97xx_register_misc_dev); - EXPORT_SYMBOL_GPL(wm97xx_unregister_misc_dev); -+EXPORT_SYMBOL_GPL(wm97xx_calc_lcd_waittime); -+EXPORT_SYMBOL_GPL(wm97xx_set_machinfo); -+EXPORT_SYMBOL_GPL(wm97xx_unset_machinfo); - - module_init(wm97xx_init); - module_exit(wm97xx_exit); -Index: linux-tosa/include/linux/wm97xx.h -=================================================================== ---- linux-tosa.orig/include/linux/wm97xx.h 2006-08-29 16:52:36.008543280 +0100 -+++ linux-tosa/include/linux/wm97xx.h 2006-08-29 16:52:50.924275744 +0100 -@@ -207,6 +207,7 @@ - - struct wm97xx; - extern struct wm97xx_codec_drv wm97xx_codec; -+extern struct wm97xx_machinfo *wm_machinfo; - - /* - * Codec driver interface - allows mapping to WM9705/12/13 and newer codecs -@@ -253,6 +254,11 @@ - struct list_head list; - }; - -+struct wm97xx_machinfo { -+ unsigned long (*get_hsync_time)(void); -+ void (*wait_hsync)(void); -+}; -+ - int wm97xx_register_misc_dev(struct wm97xx_misc_dev* mdev); - void wm97xx_unregister_misc_dev(struct wm97xx_misc_dev* mdev); - -@@ -281,4 +287,9 @@ - int wm97xx_acc_startup(struct wm97xx* wm); - void wm97xx_acc_shutdown(struct wm97xx* wm); - -+ -+unsigned long wm97xx_calc_lcd_waittime(struct wm97xx *wm); -+void wm97xx_set_machinfo(struct wm97xx_machinfo *machinfo); -+void wm97xx_unset_machinfo(void); -+ - #endif -- cgit v1.2.3