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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org On Thu, Jul 09, 2026 at 03:17:42PM +0800, Jian-Ming Liao wrote: > Enable the IBI threshold interrupt (STAT_IBI_STATUS_THLD) by default > during PIO initialization. This ensures that Hot-Join requests and > early IBIs from devices that have not yet formally requested routing Do you means not call i3c_device_request_ibi()? Frank > are properly captured, improving system responsiveness and stability. > > Co-developed-by: Patrick Yen > Signed-off-by: Patrick Yen > Signed-off-by: Jian-Ming Liao > --- > drivers/i3c/master/mipi-i3c-hci/pio.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/i3c/master/mipi-i3c-hci/pio.c b/drivers/i3c/master/mipi-i3c-hci/pio.c > index ff2657ee220b..7870b2c7888f 100644 > --- a/drivers/i3c/master/mipi-i3c-hci/pio.c > +++ b/drivers/i3c/master/mipi-i3c-hci/pio.c > @@ -185,8 +185,13 @@ static void __hci_pio_init(struct i3c_hci *hci, u32 *size_val_ptr) > pio_reg_write(INTR_SIGNAL_ENABLE, 0x0); > pio_reg_write(INTR_STATUS_ENABLE, 0xffffffff); > > - /* Always accept error interrupts (will be activated on first xfer) */ > - pio->enabled_irqs = STAT_ALL_ERRORS; > + /* > + * Always accept error interrupts (will be activated on first xfer). > + * Also enable IBI threshold interrupt by default to catch Hot-Join > + * requests and IBIs from devices that haven't formally requested > + * IBI routing yet. > + */ > + pio->enabled_irqs = STAT_ALL_ERRORS | STAT_IBI_STATUS_THLD; > } > > static void hci_pio_suspend(struct i3c_hci *hci) > -- > 2.43.0 > > > -- > linux-i3c mailing list > linux-i3c@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-i3c -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c