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Message-ID: <20220917123517.229153-1-rf@opensource.cirrus.com>
Date: Sat, 17 Sep 2022 13:35:17 +0100
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: <vkoul@...nel.org>, <yung-chuan.liao@...ux.intel.com>,
<pierre-louis.bossart@...ux.intel.com>, <sanyog.r.kale@...el.com>
CC: <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
<patches@...nsource.cirrus.com>,
Richard Fitzgerald <rf@...nsource.cirrus.com>
Subject: [PATCH] soundwire: cadence: Write to correct address for each FIFO chunk
_cdns_xfer_msg() must add the fragment offset to msg->addr to get the
base target address of each FIFO chunk. Otherwise every chunk will
be written to the first 32 register addresses.
Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
drivers/soundwire/cadence_master.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 3ef472049980..ca241bbeadd9 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -569,7 +569,7 @@ _cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd,
}
base = CDNS_MCP_CMD_BASE;
- addr = msg->addr;
+ addr = msg->addr + offset;
for (i = 0; i < count; i++) {
data = FIELD_PREP(CDNS_MCP_CMD_DEV_ADDR, msg->dev_num);
--
2.30.2
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