From: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
commit 9f3c507cb44498067c980674139bcad56e582ee6 upstream.
The commit b1f8921dfbaa
("i2c: amd-asf: Clear remote IRR bit to get successive interrupt")
introduced a method to enable successive interrupts but inadvertently
omitted the necessary write to the EOI register, resulting in a failure to
receive successive interrupts.
Fix this by adding the required write to the EOI register.
Fixes: b1f8921dfbaa ("i2c: amd-asf: Clear remote IRR bit to get successive interrupt")
Cc: stable@xxxxxxxxxxxxxxx # v6.13+
Co-developed-by: Sanket Goswami <Sanket.Goswami@xxxxxxx>
Signed-off-by: Sanket Goswami <Sanket.Goswami@xxxxxxx>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
Fixes: 9b25419ad397 ("i2c: amd-asf: Add routine to handle the ASF slave process")
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20250219135747.3251182-1-Shyam-sundar.S-k@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/i2c/busses/i2c-amd-asf-plat.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/i2c/busses/i2c-amd-asf-plat.c
+++ b/drivers/i2c/busses/i2c-amd-asf-plat.c
@@ -293,6 +293,7 @@ static irqreturn_t amd_asf_irq_handler(i
amd_asf_update_ioport_target(piix4_smba, ASF_SLV_INTR, SMBHSTSTS, true);
}
+ iowrite32(irq, dev->eoi_base);
return IRQ_HANDLED;
}
Patches currently in stable-queue which might be from Shyam-sundar.S-k@xxxxxxx are
queue-6.13/i2c-amd-asf-fix-eoi-register-write-to-enable-successive-interrupts.patch
