]> git.ipfire.org Git - thirdparty/kernel/linux.git/commit
i3c: dw: Add support for Device NACK Retry configuration
authorAdrian Ng Ho Yin <adrianhoyin.ng@altera.com>
Fri, 12 Dec 2025 09:02:56 +0000 (17:02 +0800)
committerAlexandre Belloni <alexandre.belloni@bootlin.com>
Tue, 13 Jan 2026 17:26:47 +0000 (18:26 +0100)
commitec17f14309481318df4af2a0c7f2aa7da9e7ebcb
tree29e093c5ce8ebe0ee9d52960781d683154fb6075
parentb58f47eb392680d4c6626c8b3b1fcf6412a0a02c
i3c: dw: Add support for Device NACK Retry configuration

The DesignWare I3C controller supports automatically retrying transactions
when a device NACKs. This is useful for slave devices that may be
temporarily busy and not ready to respond immediately.

Add new ops to configure all active DAT entry with dev_nack_retry during
runtime. Returns error when value exceeds hw specified limit.

Signed-off-by: Adrian Ng Ho Yin <adrianhoyin.ng@altera.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/f09ee67e61d31f0a12a0bf48f01e9057ca9e2fb7.1765529948.git.adrianhoyin.ng@altera.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
drivers/i3c/master/dw-i3c-master.c