diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.26/1141-fix-motion-sensor-corruption.patch.patch')
| -rwxr-xr-x | target/linux/s3c24xx/patches-2.6.26/1141-fix-motion-sensor-corruption.patch.patch | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.26/1141-fix-motion-sensor-corruption.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1141-fix-motion-sensor-corruption.patch.patch deleted file mode 100755 index a9b7243479..0000000000 --- a/target/linux/s3c24xx/patches-2.6.26/1141-fix-motion-sensor-corruption.patch.patch +++ /dev/null @@ -1,88 +0,0 @@ -From 18a3bda7bf72a36c3e3164402cd0e4dfa2ff4687 Mon Sep 17 00:00:00 2001 -From: Andy Green <agreen@localhost.localdomain> -Date: Fri, 25 Jul 2008 23:06:09 +0100 -Subject: [PATCH] fix-motion-sensor-corruption.patch - ---- - arch/arm/mach-s3c2440/mach-gta02.c | 35 ++++++++++++++++++++++++++++++++--- - 1 files changed, 32 insertions(+), 3 deletions(-) - -diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c -index e1984a9..9e8fae7 100644 ---- a/arch/arm/mach-s3c2440/mach-gta02.c -+++ b/arch/arm/mach-s3c2440/mach-gta02.c -@@ -905,31 +905,58 @@ static struct platform_device gta02_vibrator_dev = { - /* #define DEBUG_SPEW_MS */ - #define MG_PER_SAMPLE 18 - -+struct lis302dl_platform_data lis302_pdata[]; -+ - void gat02_lis302dl_bitbang_read(struct lis302dl_info *lis) - { - struct lis302dl_platform_data *pdata = lis->pdata; - u8 shifter = 0xc0 | LIS302DL_REG_OUT_X; /* read, autoincrement */ - int n, n1; -+ unsigned long other_cs; - unsigned long flags; - #ifdef DEBUG_SPEW_MS - s8 x, y, z; - #endif - -- spin_lock_irqsave(&motion_irq_lock, flags); -+ local_save_flags(flags); -+ -+ /* -+ * Huh.. "quirk"... CS on this device is not really "CS" like you can -+ * expect. Instead when 1 it selects I2C interface mode. Because we -+ * have 2 devices on one interface, the "disabled" device when we talk -+ * to an "enabled" device sees the clocks as I2C clocks, creating -+ * havoc. -+ * I2C sees MOSI going LOW while CLK HIGH as a START action, we must -+ * ensure this is never issued. -+ */ -+ -+ if (&lis302_pdata[0] == pdata) -+ other_cs = lis302_pdata[1].pin_chip_select; -+ else -+ other_cs = lis302_pdata[0].pin_chip_select; -+ -+ s3c2410_gpio_setpin(other_cs, 1); -+ s3c2410_gpio_setpin(pdata->pin_chip_select, 1); -+ s3c2410_gpio_setpin(pdata->pin_clk, 1); - s3c2410_gpio_setpin(pdata->pin_chip_select, 0); - for (n = 0; n < 8; n++) { /* write the r/w, inc and address */ - s3c2410_gpio_setpin(pdata->pin_clk, 0); - s3c2410_gpio_setpin(pdata->pin_mosi, (shifter >> 7) & 1); -+ s3c2410_gpio_setpin(pdata->pin_clk, 0); -+ s3c2410_gpio_setpin(pdata->pin_clk, 1); - s3c2410_gpio_setpin(pdata->pin_clk, 1); - shifter <<= 1; - } -+ - for (n = 0; n < 5; n++) { /* 5 consequetive registers */ - for (n1 = 0; n1 < 8; n1++) { /* 8 bits each */ - s3c2410_gpio_setpin(pdata->pin_clk, 0); -- s3c2410_gpio_setpin(pdata->pin_clk, 1); -+ s3c2410_gpio_setpin(pdata->pin_clk, 0); - shifter <<= 1; - if (s3c2410_gpio_getpin(pdata->pin_miso)) - shifter |= 1; -+ s3c2410_gpio_setpin(pdata->pin_clk, 1); -+ s3c2410_gpio_setpin(pdata->pin_clk, 1); - } - switch (n) { - case 0: -@@ -953,7 +980,9 @@ void gat02_lis302dl_bitbang_read(struct lis302dl_info *lis) - } - } - s3c2410_gpio_setpin(pdata->pin_chip_select, 1); -- spin_unlock_irqrestore(&motion_irq_lock, flags); -+ s3c2410_gpio_setpin(other_cs, 1); -+ local_irq_restore(flags); -+ - input_sync(lis->input_dev); - #ifdef DEBUG_SPEW_MS - printk("%s: %d %d %d\n", pdata->name, x, y, z); --- -1.5.6.3 - |