summaryrefslogtreecommitdiff
path: root/packages/linux/linux-rp-2.6.20/wm97xx-lcdnoise-r0.patch
diff options
context:
space:
mode:
Diffstat (limited to 'packages/linux/linux-rp-2.6.20/wm97xx-lcdnoise-r0.patch')
-rw-r--r--packages/linux/linux-rp-2.6.20/wm97xx-lcdnoise-r0.patch208
1 files changed, 0 insertions, 208 deletions
diff --git a/packages/linux/linux-rp-2.6.20/wm97xx-lcdnoise-r0.patch b/packages/linux/linux-rp-2.6.20/wm97xx-lcdnoise-r0.patch
deleted file mode 100644
index 191de3af22..0000000000
--- a/packages/linux/linux-rp-2.6.20/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 <spyro@f2s.com>
-@@ -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 <mike@mikearthur.co.uk>
-+ * Added fixes for Sharp SL-6000 (Tosa) LCD noise causing
-+ * touchscreen interference.
-+ *
- */
-
- #include <linux/module.h>
-@@ -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 <spyro@f2s.com>
-@@ -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 <mike@mikearthur.co.uk>
-+ * Added fixes for Sharp SL-6000 (Tosa) LCD noise causing
-+ * touchscreen interference.
- */
-
- #include <linux/module.h>
-@@ -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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 17:29:58 +0000