linux-kernel - [PATCH 0/3] soundwire: cadence: Fix oversized FIFO size define

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Message-ID: <20221201134845.4055907-1-rf@opensource.cirrus.com>
Date:   Thu, 1 Dec 2022 13:48:42 +0000
From:   Richard Fitzgerald <rf@...nsource.cirrus.com>
To:     <vkoul@...nel.org>, <pierre-louis.bossart@...ux.intel.com>
CC:     <yung-chuan.liao@...ux.intel.com>, <sanyog.r.kale@...el.com>,
        <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>
Subject: [PATCH 0/3] soundwire: cadence: Fix oversized FIFO size define

As determined by experimentation and asking a hardware person, the FIFO
in the Cadence IP is actually only 8 entries long, not 32. This is fixed
in patch #1.

As a bonus, patches #2 and #3 fix two other things I noticed while
debugging this.

Richard Fitzgerald (3):
  soundwire: cadence: Don't overflow the command FIFOs
  soundwire: cadence: Remove wasted space in response_buf
  soundwire: cadence: Drain the RX FIFO after an IO timeout

 drivers/soundwire/cadence_master.c | 45 +++++++++++++++++++-----------
 drivers/soundwire/cadence_master.h |  2 +-
 2 files changed, 29 insertions(+), 18 deletions(-)

-- 
2.30.2