diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-11-07 10:51:10 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-07 10:51:10 +0100 |
| commit | 141d3b1daacd11bdbd6fa74c2b163093e10d17ee (patch) | |
| tree | 04c98496f16ad2fe34c0cf4f31fedf4fe558c017 /drivers/spi/spi.c | |
| parent | x86/vector/msi: Select CONFIG_GENERIC_IRQ_RESERVATION_MODE (diff) | |
| parent | Merge branch 'for-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | linux-141d3b1daacd11bdbd6fa74c2b163093e10d17ee.tar.xz linux-141d3b1daacd11bdbd6fa74c2b163093e10d17ee.zip | |
Merge branch 'linus' into x86/apic, to resolve conflicts
Conflicts:
arch/x86/include/asm/x2apic.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 6e65524cbfd9..e8b5a5e21b2e 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -45,7 +45,6 @@ #define CREATE_TRACE_POINTS #include <trace/events/spi.h> -#define SPI_DYN_FIRST_BUS_NUM 0 static DEFINE_IDR(spi_master_idr); @@ -2086,7 +2085,7 @@ int spi_register_controller(struct spi_controller *ctlr) struct device *dev = ctlr->dev.parent; struct boardinfo *bi; int status = -ENODEV; - int id; + int id, first_dynamic; if (!dev) return -ENODEV; @@ -2116,9 +2115,15 @@ int spi_register_controller(struct spi_controller *ctlr) } } if (ctlr->bus_num < 0) { + first_dynamic = of_alias_get_highest_id("spi"); + if (first_dynamic < 0) + first_dynamic = 0; + else + first_dynamic++; + mutex_lock(&board_lock); - id = idr_alloc(&spi_master_idr, ctlr, SPI_DYN_FIRST_BUS_NUM, 0, - GFP_KERNEL); + id = idr_alloc(&spi_master_idr, ctlr, first_dynamic, + 0, GFP_KERNEL); mutex_unlock(&board_lock); if (WARN(id < 0, "couldn't get idr")) return id; |