linux-kernel - [PATCH 0/5] soundwire: only clear valid interrupts

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Message-Id: <20201124013318.8963-1-yung-chuan.liao@linux.intel.com>
Date:   Tue, 24 Nov 2020 09:33:13 +0800
From:   Bard Liao <yung-chuan.liao@...ux.intel.com>
To:     alsa-devel@...a-project.org, vkoul@...nel.org
Cc:     vinod.koul@...aro.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org, jank@...ence.com,
        srinivas.kandagatla@...aro.org, rander.wang@...ux.intel.com,
        ranjani.sridharan@...ux.intel.com, hui.wang@...onical.com,
        pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
        mengdong.lin@...el.com, bard.liao@...el.com
Subject: [PATCH 0/5] soundwire: only clear valid interrupts

We wrote 1 to the handled interrupts bits along with 0 to all other bits
to the SoundWire DPx interrupt register. However, DP0 has reserved fields
and the read-only SDCA_CASCADE bit. DPN also has reserved fields. We should
not try to write values in these fields.
Besides, we deal with pending interrupts in a loop but we didn't reset the
slave_notify status.

Pierre-Louis Bossart (5):
  soundwire: bus: add comments to explain interrupt loop filter
  soundwire: bus: reset slave_notify status at each loop
  soundwire: registers: add definitions for clearable interrupt fields
  soundwire: bus: only clear valid DP0 interrupts
  soundwire: bus: only clear valid DPN interrupts

 drivers/soundwire/bus.c                 | 27 +++++++++++++++++--------
 include/linux/soundwire/sdw_registers.h | 11 ++++++++++
 2 files changed, 30 insertions(+), 8 deletions(-)

-- 
2.17.1