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Subject[PATCH] spi: spreadtrum adi: add hwspinlock dependency
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With CONFIG_HWSPINLOCK=m, the new driver fails to link as a built-in driver:

drivers/spi/spi-sprd-adi.o: In function `sprd_adi_remove':
spi-sprd-adi.c:(.text+0x18): undefined reference to `hwspin_lock_free'
drivers/spi/spi-sprd-adi.o: In function `sprd_adi_probe':
spi-sprd-adi.c:(.text+0xfc): undefined reference to `of_hwspin_lock_get_id'
spi-sprd-adi.c:(.text+0x108): undefined reference to `hwspin_lock_request_specific'
spi-sprd-adi.c:(.text+0x268): undefined reference to `hwspin_lock_free'

This adds a hard Kconfig dependency on HWSPINLOCK, which is the
simplest solution since we don't care about building for the case
without HWSPINLOCK.

Fixes: 7e2903cb91df ("spi: Add ADI driver for Spreadtrum platform")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/spi/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 2d9601e3a6ae..e2bd86826d44 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -625,6 +625,7 @@ config SPI_SIRF
config SPI_SPRD_ADI
tristate "Spreadtrum ADI controller"
depends on ARCH_SPRD || COMPILE_TEST
+ depends on HWSPINLOCK
help
ADI driver based on SPI for Spreadtrum SoCs.

--
2.9.0
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