From 18560a4e3b07438113b50589e78532d95f907029 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 20 Nov 2015 15:43:06 -0800 Subject: [PATCH] ASoC: qcom: Specify LE device endianness This is a little endian device, but so far we've been relying on the regmap mmio bus handling this for us without explicitly stating that fact. After commit 4a98da2164cf (regmap-mmio: Use native endianness for read/write, 2015-10-29), the regmap mmio bus will read/write with the __raw_*() IO accessors, instead of using the readl/writel() APIs that do proper byte swapping for little endian devices. So if we're running on a big endian processor and haven't specified the endianness explicitly in the regmap config or in DT, we're going to switch from doing little endian byte swapping to big endian accesses without byte swapping, leading to some confusing results. Specify the endianness explicitly so that the regmap core properly byte swaps the accesses for us. Cc: Kenneth Westfield Cc: Kevin Hilman Cc: Tyler Baker Cc: Simon Arlott Signed-off-by: Stephen Boyd Signed-off-by: Mark Brown --- sound/soc/qcom/lpass-cpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index e5101e0..00b6c9d 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -355,6 +355,7 @@ static struct regmap_config lpass_cpu_regmap_config = { .readable_reg = lpass_cpu_regmap_readable, .volatile_reg = lpass_cpu_regmap_volatile, .cache_type = REGCACHE_FLAT, + .val_format_endian = REGMAP_ENDIAN_LITTLE, }; int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev) -- 2.7.4