From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
[ Upstream commit 1ee6c5abebd3cacf2ac4378d0ed4f57fd4850421 ]
Interrupt line can be configured on different hardware in different way, even inverted. Therefore driver should not enforce specific trigger type - edge rising - but instead rely on Devicetree to configure it.
All Qualcomm DTSI with WCN3990 define the interrupt type as level high, so the mismatch between DTSI and driver causes rebind issues:
$ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/unbind $ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/bind [ 44.763114] irq: type mismatch, failed to map hwirq-446 for interrupt-controller@17a00000! [ 44.763130] ath10k_snoc 18800000.wifi: error -ENXIO: IRQ index 0 not found [ 44.763140] ath10k_snoc 18800000.wifi: failed to initialize resource: -6
Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.0.c8-00009-QCAHLSWSC8180XMTPLZ-1 Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1
Fixes: c963a683e701 ("ath10k: add resource init and deinit for WCN3990") Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Tested-by: Steev Klimaszewski steev@kali.org Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20220513151516.357549-1-krzysztof.kozlowski@linaro... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath10k/snoc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index 241e6f0e1dfe..4489875fc87b 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -879,13 +879,12 @@ static void ath10k_snoc_init_napi(struct ath10k *ar) static int ath10k_snoc_request_irq(struct ath10k *ar) { struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); - int irqflags = IRQF_TRIGGER_RISING; int ret, id;
for (id = 0; id < CE_COUNT_MAX; id++) { ret = request_irq(ar_snoc->ce_irqs[id].irq_line, - ath10k_snoc_per_engine_handler, - irqflags, ce_name[id], ar); + ath10k_snoc_per_engine_handler, 0, + ce_name[id], ar); if (ret) { ath10k_err(ar, "failed to register IRQ handler for CE %d: %d",