i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2

Browse source

Support explicit enablement and starting of PIO queues as required by
HCI v1.2.
Handle alternate PIO queue sizes via ALT_QUEUE_SIZE register.
Implement explicit PIO queue stopping/disabling and restart logic after
errors.

Co-developed-by: Patrick Yen <Patrick_Yen@asmedia.com.tw>
Signed-off-by: Patrick Yen <Patrick_Yen@asmedia.com.tw>
Signed-off-by: Jian-Ming Liao <Jm_Liao@asmedia.com.tw>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260818104106.763772-3-Jm_Liao@asmedia.com.tw
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

...

This commit is contained in:

Jian-Ming Liao 2026-08-18 18:41:05 +08:00 • committed by Alexandre Belloni

parent 308ecb824d

commit ee53e1787f

3 changed files with 69 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/i3c/master/mipi-i3c-hci/core.c

View file

5

drivers/i3c/master/mipi-i3c-hci/hci.h

View file

67

drivers/i3c/master/mipi-i3c-hci/pio.c

View file