diff options
| author | Nelson Castillo <nelsoneci@gmail.com> | 2008-11-19 17:11:25 +0000 |
|---|---|---|
| committer | Andy Green <agreen@pads.home.warmcat.com> | 2008-11-19 17:11:25 +0000 |
| commit | 3880c3963d398e90c6737849955bdf20c61b64b9 (patch) | |
| tree | 1219632ff163ca5d9fa38515b0ad20c081eb3099 /arch | |
| parent | 4c68341d014cdd5142882377f326672ed382f80f (diff) | |
Subject: [PATCH 1/2] fix-gta02_lis302dl_bitbang.patch
Make accelerometers work again in stable-tracking.
They stopped working with a previous commit.
(shifter >> 7) & 1); ...; shifter <<= 1;
Had been changed to:
(shifter >> (7 - n)) & 1) /* assuming tx_bytes == 1 */
The problem: an unneeded shifter <<= 1 was still there.
We make a small change to the indexing code to make things work again.
Signed-off-by: Nelson Castillo <nelsoneci@gmail.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-s3c2440/mach-gta02.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c index 8189724c02d..21a147db695 100644 --- a/arch/arm/mach-s3c2440/mach-gta02.c +++ b/arch/arm/mach-s3c2440/mach-gta02.c @@ -1080,9 +1080,9 @@ static void __gta02_lis302dl_bitbang(struct lis302dl_info *lis, u8 *tx, /* send the register index, r/w and autoinc bits */ for (n = 0; n < (tx_bytes << 3); n++) { if (!(n & 7)) - shifter = tx[n >> 3]; + shifter = ~tx[n >> 3]; s3c2410_gpio_setpin(pdata->pin_clk, 0); - s3c2410_gpio_setpin(pdata->pin_mosi, (shifter >> (7 - n)) & 1); + s3c2410_gpio_setpin(pdata->pin_mosi, !(shifter & 0x80)); s3c2410_gpio_setpin(pdata->pin_clk, 1); shifter <<= 1; } |