From 7fae3cfb7007038a320db43ddffb7688388a0260 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 14 Jul 2021 11:22:06 +0800 Subject: [PATCH] soundwire: bus: squelch error returned by mockup devices All read and writes from/to SoundWire mockup devices will return -ENODATA/Command_Ignored, this patch forces a Command_OK result to let the bus perform the required configurations, e.g. for the Data Ports, which will only have an effect on the Master side. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20210714032209.11284-8-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul --- drivers/soundwire/bus.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index b3ed0123ed27..1b115734a8f6 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -390,7 +390,10 @@ sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) if (ret < 0) return ret; - return sdw_transfer(slave->bus, &msg); + ret = sdw_transfer(slave->bus, &msg); + if (slave->is_mockup_device) + ret = 0; + return ret; } static int @@ -404,7 +407,10 @@ sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) if (ret < 0) return ret; - return sdw_transfer(slave->bus, &msg); + ret = sdw_transfer(slave->bus, &msg); + if (slave->is_mockup_device) + ret = 0; + return ret; } int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value)