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dw_i3c_master_daa() derives the number of newly assigned dynamic addresses from cmd->rx_len, the ISR sets it to the number of address slots ENTDAA left unassigned. It starts out as zero, which already means "every address was assigned", so a timed out transfer leaves that value in place and it gets used as a result. If there's no client connected, the addr assign cmd times out, then the driver calls i3c_master_add_i3c_dev_locked() to add devices that are not there, each costing about 1s, thus adds non necessary boot time up to (maxdev * 1)s. Start from maxdevs instead: no address is assigned before ENTDAA runs, and the existing rx_count >= maxdevs check then reports an empty bus. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260819044833.32611-1-jszhang@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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| .. | ||
| mipi-i3c-hci | ||
| adi-i3c-master.c | ||
| amd-i3c-master.c | ||
| ast2600-i3c-master.c | ||
| dw-i3c-master.c | ||
| dw-i3c-master.h | ||
| i3c-master-cdns.c | ||
| Kconfig | ||
| Makefile | ||
| renesas-i3c.c | ||
| svc-i3c-master.c | ||