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

From: Bard Liao
Date: Tue Nov 24 2020 - 08:26:00 EST


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(-)

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2.17.1