The patch titled
omap_uwire: SPI_CPHA mode bugfix
has been added to the -mm tree. Its filename is
omap_uwire-spi_cpha-mode-bugfix.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: omap_uwire: SPI_CPHA mode bugfix
From: Imre Deak <imre.deak@xxxxxxxxxxxxx>
The omap_uwire controller driver handles SPI_CPHA incorrectly;
It should mean:
CPHA=0 ... sample at leading edge of clock
CPHA=1 ... sample at trailing edge of clock
This bug has been masked by inverse bugs in layered drivers;
and was uncovered by running some of them on non-OMAP hardware.
Signed-off-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/spi/omap_uwire.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -puN drivers/spi/omap_uwire.c~omap_uwire-spi_cpha-mode-bugfix drivers/spi/omap_uwire.c
--- a/drivers/spi/omap_uwire.c~omap_uwire-spi_cpha-mode-bugfix
+++ a/drivers/spi/omap_uwire.c
@@ -358,11 +358,11 @@ static int uwire_setup_transfer(struct s
switch (spi->mode & (SPI_CPOL | SPI_CPHA)) {
case SPI_MODE_0:
case SPI_MODE_3:
- flags |= UWIRE_WRITE_RISING_EDGE | UWIRE_READ_FALLING_EDGE;
+ flags |= UWIRE_WRITE_FALLING_EDGE | UWIRE_READ_RISING_EDGE;
break;
case SPI_MODE_1:
case SPI_MODE_2:
- flags |= UWIRE_WRITE_FALLING_EDGE | UWIRE_READ_RISING_EDGE;
+ flags |= UWIRE_WRITE_RISING_EDGE | UWIRE_READ_FALLING_EDGE;
break;
}
_
Patches currently in -mm which might be from imre.deak@xxxxxxxxxxxxx are
omap_uwire-spi_cpha-mode-bugfix.patch
-
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