Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=230ffc8e348e7841b79fd7c659d16aa5d7ec8a69
Commit: 230ffc8e348e7841b79fd7c659d16aa5d7ec8a69
Parent: bff0de5f59ff935138eb41c397a7e50468028b83
Author: Semih Hazar <[EMAIL PROTECTED]>
AuthorDate: Tue May 22 23:35:12 2007 -0400
Committer: Dmitry Torokhov <[EMAIL PROTECTED]>
CommitDate: Tue May 22 23:35:12 2007 -0400
Input: ads7846 - SPI_CPHA mode bugfix
In commit [1] the SPI mode is set to 1, but it should be 0. As stated
in the commit, ads784x samples the data on the rising edge. SPI mode 1
samples on the falling edge [2] though.
The root cause of this is a bug in the omap_uwire code, which treats
CPHA=1 incorrectly; so these two bugs cancel each other out on one
of the main regression test platforms for this driver.
[1] kernel.org GIT 7937e86a70235e1584486654687dc9908a11e00a
[2] http://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Dmitry Torokhov <[EMAIL PROTECTED]>
---
drivers/input/touchscreen/ads7846.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/input/touchscreen/ads7846.c
b/drivers/input/touchscreen/ads7846.c
index b0110fe..1c9069c 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -848,7 +848,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
* may not. So we stick to very-portable 8 bit words, both RX and TX.
*/
spi->bits_per_word = 8;
- spi->mode = SPI_MODE_1;
+ spi->mode = SPI_MODE_0;
err = spi_setup(spi);
if (err < 0)
return err;
-
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