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tegra124: Add some stub functions to the Tegra SPI driver.

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These functions support even more facets of the SPI API which are used by the
EC communication layer.

BUG=None
TEST=Built and booted into depthcharge on nyan.
BRANCH=None

Change-Id: If9ea65388ba8df0e1f6beac014adf625b7be4c01
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/173789
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
This commit is contained in:
Gabe Black 2013-10-19 01:31:28 -07:00 • committed by chrome-internal-fetch
commit 8bc527aa4a
1 changed files with 20 additions and 0 deletions
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20
src/soc/nvidia/tegra124/spi.c
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@ -792,3 +792,23 @@ int initialize_tegra_spi_cbfs_media(struct cbfs_media *media,
return 0;
}
struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int mode)
{
struct tegra_spi_channel *channel = to_tegra_spi(bus);
if (!channel)
return NULL;
return &channel->slave;
}
int spi_claim_bus(struct spi_slave *slave)
{
tegra_spi_init(slave->bus);
return 0;
}
void spi_release_bus(struct spi_slave *slave)
{
}