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UPSTREAM: spi: Add function callback to get configuration of SPI bus

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Add a new callback to spi_ctrlr structure - get_config - to obtain
configuration of SPI bus from the controller driver. Also, move common
config definitions from acpi_device.h to spi-generic.h

BUG=chrome-os-partner:59832
BRANCH=None
TEST=Compiles successfully

Change-Id: I65605a03c4368f1bb4cea38d5b88e0aa4f600249
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Id: 3e01b633d6
Original-Change-Id: I412c8c70167d18058a32041c2310bc1c884043ce
Original-Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-on: https://review.coreboot.org/18337
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/444805
This commit is contained in:
Furquan Shaikh 2017-01-08 13:32:30 -08:00 • committed by chrome-bot
commit 6c31bd60ae
3 changed files with 53 additions and 17 deletions
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10
src/drivers/spi/spi-generic.c
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@ -88,6 +88,16 @@ int spi_xfer(const struct spi_slave *slave, const void *dout, size_t bytesout,
return -1;
}
int spi_get_config(const struct spi_slave *slave, struct spi_cfg *cfg)
{
const struct spi_ctrlr *ctrlr = slave->ctrlr;
if (ctrlr && ctrlr->get_config)
return ctrlr->get_config(slave, cfg);
return -1;
}
void __attribute__((weak)) spi_init(void)
{
/* Default weak implementation - do nothing. */