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| author | Mark A. Greer <mgreer@animalcreek.com> | 2014-07-01 20:28:32 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-17 09:03:57 -0700 |
| commit | abcc94f8395a956d8aa9188aa5ffb66cba90738c (patch) | |
| tree | d2b8985fb17aee455a3764e048cdd28e42d0b5ff /drivers/spi/spi-dw-mmio.c | |
| parent | bd09037436bbd28f75e21bc7e630725f4902c084 (diff) | |
spi: omap2-mcspi: Configure hardware when slave driver changes mode
commit 97ca0d6cc118716840ea443e010cb3d5f2d25eaf upstream.
Commit id 2bd16e3e23d9df41592c6b257c59b6860a9cc3ea
(spi: omap2-mcspi: Do not configure the controller
on each transfer unless needed) does its job too
well so omap2_mcspi_setup_transfer() isn't called
even when an SPI slave driver changes 'spi->mode'.
The result is that the mode requested by the SPI
slave driver never takes effect.
Fix this by adding the 'mode' member to the
omap2_mcspi_cs structure which holds the mode
value that the hardware is configured for.
When the SPI slave driver changes 'spi->mode'
it will be different than the value of this new
member and the SPI master driver will know that
the hardware must be reconfigured (by calling
omap2_mcspi_setup_transfer()).
Fixes: 2bd16e3e23 (spi: omap2-mcspi: Do not configure the controller on each transfer unless needed)
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/spi/spi-dw-mmio.c')
0 files changed, 0 insertions, 0 deletions