The rk3399 scans the spi_bus_type to find the rt5514 driver, but does not actually have a Kconfig dependency on SPI, so we can end up with a link failure:

sound/soc/codecs/snd-soc-rt5514-spi.o: In function `rt5514_spi_driver_init': rt5514-spi.c:(.init.text+0x14): undefined reference to `__spi_register_driver' sound/soc/codecs/snd-soc-rt5514-spi.o: In function `rt5514_spi_burst_read': rt5514-spi.c:(.text.rt5514_spi_burst_read+0x18c): undefined reference to `spi_sync' sound/soc/codecs/snd-soc-rt5514-spi.o: In function `rt5514_spi_burst_write': rt5514-spi.c:(.text.rt5514_spi_burst_write+0x1b4): undefined reference to `spi_sync' sound/soc/rockchip/snd-soc-rk3399-gru-sound.o: In function `rockchip_sound_probe': rk3399_gru_sound.c:(.text.rockchip_sound_probe+0x128): undefined reference to `spi_bus_type'

This adds the missing dependency.

Signed-off-by: Arnd Bergmann arnd@arndb.de Fixes: c6eac8a36a84 ("ASoC: rockchip: Add machine driver for RK3399 GRU Boards") --- sound/soc/rockchip/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig index d82d763d4854..c783f9a22595 100644 --- a/sound/soc/rockchip/Kconfig +++ b/sound/soc/rockchip/Kconfig @@ -44,7 +44,7 @@ config SND_SOC_ROCKCHIP_RT5645

config SND_SOC_RK3399_GRU_SOUND tristate "ASoC support multiple codecs for Rockchip RK3399 GRU boards" - depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB && CLKDEV_LOOKUP + depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB && CLKDEV_LOOKUP && SPI select SND_SOC_ROCKCHIP_I2S select SND_SOC_MAX98357A select SND_SOC_RT5514