tree 38ef7ec68597da137f49a3e67886503afca82234
parent ab658321f32770b903a4426e2a6fae0392757755
author Markus Pietrek <Markus.Pietrek@emtrion.de> 1265077755 +0900
committer Paul Mundt <lethal@linux-sh.org> 1265077755 +0900

spi: spi_sh_msiof: Fixed data sampling on the correct edge

The spi_sh_msiof.c driver presently misconfigures REDG and TEDG. TEDG==0
outputs data at the **rising edge** of the clock and REDG==0 samples data
at the **falling edge** of the clock. Therefore for SPI, TEDG must be
equal to REDG, otherwise the last byte received is not sampled in SPI
mode 3.

This brings the driver in line with the SH7723 HW Reference Manual
settings documented in Figures 20.20 and 20.21 ("SPI Clock and data
timing").

Signed-off-by: Markus Pietrek <Markus.Pietrek@emtrion.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>