diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2016-12-01 01:02:44 -0800 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2016-12-05 03:28:06 +0100 |
| commit | 36b81af9e8ecea2bf58aae9a421720ed10f61b82 (patch) | |
| tree | 05e7329c67bf009531c12052db105ac55ce015b8 /src/soc/samsung/exynos5420 | |
| parent | 0dba0254ea31eca41fdef88783f1dd192ac6fa56 (diff) | |
spi: Pass pointer to spi_slave structure in spi_setup_slave
For spi_setup_slave, instead of making the platform driver return a
pointer to spi_slave structure, pass in a structure pointer that can be
filled in by the driver as required. This removes the need for platform
drivers to maintain a slave structure in data/CAR section.
BUG=chrome-os-partner:59832
BRANCH=None
TEST=Compiles successfully
Change-Id: Ia15a4f88ef4dcfdf616bb1c22261e7cb642a7573
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/17683
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/samsung/exynos5420')
| -rw-r--r-- | src/soc/samsung/exynos5420/spi.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/soc/samsung/exynos5420/spi.c b/src/soc/samsung/exynos5420/spi.c index c2faeb5198..5dbe024f71 100644 --- a/src/soc/samsung/exynos5420/spi.c +++ b/src/soc/samsung/exynos5420/spi.c @@ -60,7 +60,7 @@ static struct exynos_spi_slave exynos_spi_slaves[3] = { static inline struct exynos_spi_slave *to_exynos_spi(const struct spi_slave *slave) { - return container_of(slave, struct exynos_spi_slave, slave); + return &exynos_spi_slaves[slave->bus]; } static void spi_sw_reset(struct exynos_spi *regs, int word) @@ -117,15 +117,20 @@ static void exynos_spi_init(struct exynos_spi *regs) spi_sw_reset(regs, 1); } -struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { ASSERT(bus >= 0 && bus < 3); - struct exynos_spi_slave *eslave = &exynos_spi_slaves[bus]; + struct exynos_spi_slave *eslave; + + slave->bus = bus; + slave->cs = cs; + + eslave = to_exynos_spi(slave); if (!eslave->initialized) { exynos_spi_init(eslave->regs); eslave->initialized = 1; } - return &eslave->slave; + return 0; } int spi_claim_bus(const struct spi_slave *slave) |