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[188.155.176.92]) by smtp.gmail.com with ESMTPSA id y15-20020a05600c364f00b003945237fea1sm2741440wmq.0.2022.05.13.08.15.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 May 2022 08:15:29 -0700 (PDT) From: Krzysztof Kozlowski To: Kalle Valo , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Govind Singh , ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Bjorn Andersson , linux-arm-msm@vger.kernel.org, Krzysztof Kozlowski Subject: [PATCH] ath10k: do not enforce interrupt trigger type Date: Fri, 13 May 2022 17:15:16 +0200 Message-Id: <20220513151516.357549-1-krzysztof.kozlowski@linaro.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" 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 f= ound [ 44.763140] ath10k_snoc 18800000.wifi: failed to initialize resource: = -6 Fixes: c963a683e701 ("ath10k: add resource init and deinit for WCN3990") Signed-off-by: Krzysztof Kozlowski Tested-by: Steev Klimaszewski --- Separate question is whether DTS has a proper interrupt type (level high) configured... --- 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 607e8164bf98..5576ad9fd116 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -1249,13 +1249,12 @@ static void ath10k_snoc_init_napi(struct ath10k *ar) static int ath10k_snoc_request_irq(struct ath10k *ar) { struct ath10k_snoc *ar_snoc =3D ath10k_snoc_priv(ar); - int irqflags =3D IRQF_TRIGGER_RISING; int ret, id; =20 for (id =3D 0; id < CE_COUNT_MAX; id++) { ret =3D 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\n", --=20 2.32.0