From dbe743c73391b78b6217febfdc1a45f6805cd2d3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Cl=C3=A9ment=20P=C3=A9ron?= Date: Fri, 30 Oct 2020 15:46:40 +0100 Subject: [PATCH] ASoC: sun4i-i2s: Fix sun8i volatile regs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The FIFO TX reg is volatile and sun8i i2s register mapping is different from sun4i. Even if in this case it's doesn't create an issue, Avoid setting some regs that are undefined in sun8i. Acked-by: Maxime Ripard Reviewed-by: Chen-Yu Tsai Signed-off-by: Clément Péron Link: https://lore.kernel.org/r/20201030144648.397824-8-peron.clem@gmail.com Signed-off-by: Mark Brown --- sound/soc/sunxi/sun4i-i2s.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index 786731191d901..003610c0badff 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -1162,12 +1162,19 @@ static bool sun8i_i2s_rd_reg(struct device *dev, unsigned int reg) static bool sun8i_i2s_volatile_reg(struct device *dev, unsigned int reg) { - if (reg == SUN8I_I2S_INT_STA_REG) + switch (reg) { + case SUN4I_I2S_FIFO_CTRL_REG: + case SUN4I_I2S_FIFO_RX_REG: + case SUN4I_I2S_FIFO_STA_REG: + case SUN4I_I2S_RX_CNT_REG: + case SUN4I_I2S_TX_CNT_REG: + case SUN8I_I2S_FIFO_TX_REG: + case SUN8I_I2S_INT_STA_REG: return true; - if (reg == SUN8I_I2S_FIFO_TX_REG) - return false; - return sun4i_i2s_volatile_reg(dev, reg); + default: + return false; + } } static const struct reg_default sun4i_i2s_reg_defaults[] = { -- 2.39.5