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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?ekuew2n9T8AUbG1+Tz63zUaV6tlq6DjrwBAK1+aZTO0TdZWzUzIoTeTIRttN?= =?us-ascii?Q?IGG52SYnc2h4D2KDu/8+IRsryo/6Ao8xmsDqkmvHkylteU6TWJV1LvCYNeVT?= =?us-ascii?Q?xVdqm0vBNAHP8nWB+VFAz3gOlKwvhKF5Lx3He6/u+yKM9URCjtjOuEpXPntt?= =?us-ascii?Q?k/4SEWjRYXwee+sYC+RMQ8WVLBgcYpuT/bTIHujIHOE41VkqtUns7TovvP1y?= =?us-ascii?Q?Vli2vKKV3HipW6ViNRel85xqSHgaGMdHOcs3BtRU11NZE9PlIOMPN9kI8UWN?= =?us-ascii?Q?fltTNs+LAxBwWEjrxAHeWlBYEmpGD+ZnQna1Ad2qc0WLSUd5UATOa6ROGFJp?= =?us-ascii?Q?NJxlaleaYqzZT6qPjhIJQ0FBfX15bYlVDofLQJgJdkbQHVueMxy3fgea/XHT?= =?us-ascii?Q?yOtsOS4cLd/fTUGVbsVS/vAUi95ZGrDhlfFw4Q0vygnSSM7/Mh3BtiOLY/g6?= =?us-ascii?Q?G3m0XJHK6Q5NE+Xd2pDBNXQXIezKptPH+pMQveonKYUhkbZtik5s4VAvQBBq?= =?us-ascii?Q?4BbkgaFzoN9O/zs5IaoOHz+cktajvsNb/HsCgahphDw6eiiIsAKaP7ldJ89k?= =?us-ascii?Q?F/lfl4q2FraE2XXYWpTgivZJA7pkkHhXdTkgIRHk6nhswH21r2KkcaciWZmc?= =?us-ascii?Q?NoGIv1m36vvTx05U80KWTdehVPkGoP1r1OHU288DuP0dpYhyyQKvJORiDqaY?= =?us-ascii?Q?AeCH9g3tNmfHCkA7YXMgF+n81GEOMaU49fnf44qdZv4c+6r8d6irfE8FOqUF?= =?us-ascii?Q?dzBUJmk53BaQPtF/7CVEdynGrm1lfD1aTcb7JJTsiECjFksz3vX/pArrTVOE?= =?us-ascii?Q?naIKmFD34xtXiuu+dM/72yf+HajysGR0yo2mCM9O3bBNEJciQWq1Y2lnU/4o?= =?us-ascii?Q?WrUhyRIrSpcKiBV4x7HQTvq4sdqZIeKLIpnazO1HaG/dIkrSaNT4uEM9GZsl?= =?us-ascii?Q?SUvcn1GFP3t6+cqZReqPPvZnpROhzgoYwZd0hsoNAB1RelNhUToXdwIUzZXe?= =?us-ascii?Q?R+RKlYIY+Rq9jGta4MZ8ikTRysEypDMcn/OptaIvAOdMyCEGG2QrXhzGtkmn?= =?us-ascii?Q?iKAKN+FDKFrUmOC0t9sAP0mwMvYDEf3KFl5L9rixZVEdyr9yFSMslhOiIH0/?= =?us-ascii?Q?YeiqpTwHtYvFuIq1gcjUtwqn+UWp+ui2JYaE3ki5IpLP6hV3PJCtiCTLUCNn?= =?us-ascii?Q?pwz9y/jBkr+dU6COV/7Ura1tjCdxbf3jo0A8yEveIHY3fE18eYNipXjvuIxo?= =?us-ascii?Q?kKXtK1ork23IDqwEr6V/47gCqV+pNR5nA/IyQYQgKW6hLLmzTUT2cGQl52XF?= =?us-ascii?Q?LOXNaQq/wSUjEjzG3gsXIvXIKbCkHTNrrmRefbKnNRD7SKLOy/7myag+Jl4b?= =?us-ascii?Q?6eN7r39Oy9F8ARbe43UhVZKBB15ps+ABDaDaawMngaJbjseCEDxjw45+j6U/?= =?us-ascii?Q?brFmaWhilX3BXF7mntytOdEdPPikc8JF1vjE6kzI/CNqcdakDEcDYSKzOKqA?= =?us-ascii?Q?GUt0+/zC3kV1AIvReFYM3HL389kt3B04+axp796kZyiqF9lKeF9dsdQvmSaO?= =?us-ascii?Q?5DH6tyfTS5oxmnWQJuRO+lnlftmwmHCaDhhGaCnV?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: fd22f881-5a74-43ef-91cf-08de2b818515 X-MS-Exchange-CrossTenant-AuthSource: DU2PR04MB8951.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Nov 2025 17:47:24.2901 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 6tMq3L3Uje45k2fRjhK3CBGyN2lbW8pAQIcgyN6RJUg7m+dtnDVA8cR+B9MFeDThPHWv3IhLNPndOlAIBE0gqA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAXPR04MB9490 On Sat, Nov 22, 2025 at 02:00:39AM +0800, adrianhoyin.ng@altera.com wrote: > From: Adrian Ng Ho Yin > > Document sysfs attribute dev_nack_retry_cnt that controls the number of > automatic retries performed by the I3C controller when a target device > returns a NACK > > Signed-off-by: Adrian Ng Ho Yin > --- Reviewed-by: Frank Li > Documentation/ABI/testing/sysfs-bus-i3c | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-bus-i3c b/Documentation/ABI/testing/sysfs-bus-i3c > index c812ab180ff4..0b8a0c223f4a 100644 > --- a/Documentation/ABI/testing/sysfs-bus-i3c > +++ b/Documentation/ABI/testing/sysfs-bus-i3c > @@ -161,3 +161,15 @@ Contact: linux-i3c@vger.kernel.org > Description: > These directories are just symbolic links to > /sys/bus/i3c/devices/i3c-/-. > + > +What: /sys/bus/i3c/devices/i3c-/-/dev_nack_retry_count > +KernelVersion: 6.18 > +Contact: linux-i3c@vger.kernel.org > +Description: > + Expose the dev_nak_retry_count which controls the number of > + automatic retries that will be performed by the controller when > + the target device returns a NACK response. A value of 0 disables > + the automatic retries. A max value of 3 can be configured. Exist > + only when I3C constroller supports this retry on nack feature. > + > + Valid values: 0-3 > -- > 2.49.GIT >