This patch marks SPDIF_SMPDR as volatile to make it resaonable, which also requires marking it as readable, even though it isn't. Signed-off-by: Sugar Zhang <sugar.zhang@xxxxxxxxxxxxxx> --- sound/soc/rockchip/rockchip_spdif.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/rockchip/rockchip_spdif.c b/sound/soc/rockchip/rockchip_spdif.c index 73226a4..8baa473 100644 --- a/sound/soc/rockchip/rockchip_spdif.c +++ b/sound/soc/rockchip/rockchip_spdif.c @@ -247,6 +247,7 @@ static bool rk_spdif_rd_reg(struct device *dev, unsigned int reg) case SPDIF_INTCR: case SPDIF_INTSR: case SPDIF_XFER: + case SPDIF_SMPDR: return true; default: return false; @@ -258,6 +259,7 @@ static bool rk_spdif_volatile_reg(struct device *dev, unsigned int reg) switch (reg) { case SPDIF_INTSR: case SPDIF_SDBLR: + case SPDIF_SMPDR: return true; default: return false; -- 2.7.4