diff options
| author |   Geert Uytterhoeven <geert+renesas@linux-m68k.org> | 2014-02-25 11:21:13 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@linaro.org> | 2014-02-27 19:44:04 +0900 |
| commit | 1bd6363bc0c69ff6120b53daa35cf9459c3628ad (patch) | |
| tree | 224b9dbe88eefa5f528a12a25065d7e200326b6d /drivers/spi/Kconfig | |
| parent | spi: sh-msiof: Convert to let spi core validate xfer->bits_per_word (diff) | |
| download | linux-dev-1bd6363bc0c69ff6120b53daa35cf9459c3628ad.tar.xz linux-dev-1bd6363bc0c69ff6120b53daa35cf9459c3628ad.zip | |
spi: sh-msiof: Use core message handling instead of spi-bitbang
The only remaining feature of spi-bitbang used by this driver is the
chipselect() callback, which just does conditional GPIO.
This is handled fine by the SPI core's spi_set_cs(), hence switch the
driver to use the core message handling through our own transfer_one()
method.
As the (optional) GPIO CS is no longer deasserted at spi_master.setup()
time (through spi_bitbang_setup() and the spi_bitbang.chipselect()
callback), we now have to take care of that ourselves.
Remove the call to spi_master_put() in sh_msiof_spi_remove(), as our SPI
master is now registered using devm_spi_register_master()
(spi_bitbang_start() uses the non-managed version).
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/Kconfig')
| -rw-r--r-- | drivers/spi/Kconfig | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index ba9310bc9acb..16f2987c29dc 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -416,7 +416,6 @@ config SPI_SH_MSIOF tristate "SuperH MSIOF SPI controller" depends on HAVE_CLK depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST - select SPI_BITBANG help SPI driver for SuperH and SH Mobile MSIOF blocks. |