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Frank Li ad661951a9 i3c: master: svc: fix probe failure when no i3c device exist ... commit 6e13d6528b upstream. I3C masters are expected to support hot-join. This means at initialization time we might not yet discover any device and this should not be treated as a fatal error. During the DAA procedure which happens at probe time, if no device has joined, all CCC will be NACKed (from a bus perspective). This leads to an early return with an error code which fails the probe of the master. Let's avoid this by just telling the core through an I3C_ERROR_M2 return command code that no device was discovered, which is a valid situation. This way the master will no longer bail out and fail to probe for a wrong reason. Cc: stable@vger.kernel.org Fixes: dd3c52846d ("i3c: master: svc: Add Silvaco I3C master driver") Signed-off-by: Frank Li <Frank.Li@nxp.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/r/20230831141324.2841525-1-Frank.Li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2023-09-13 09:43:01 +02:00
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master	i3c: master: svc: fix probe failure when no i3c device exist	2023-09-13 09:43:01 +02:00
device.c	i3c: Handle drivers without probe or remove callback	2021-02-02 00:16:57 +01:00
internals.h	i3c: Add core I3C infrastructure	2018-11-12 10:33:49 +01:00
Kconfig	i3c: Add core I3C infrastructure	2018-11-12 10:33:49 +01:00
Makefile	i3c: Add core I3C infrastructure	2018-11-12 10:33:49 +01:00
master.c	i3c: master: Remove the wrong place of reattach.	2022-10-12 23:45:29 +02:00