From: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
To: Douglas Anderson <dianders@chromium.org>,
"ath11k@lists.infradead.org" <ath11k@lists.infradead.org>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: Kalle Valo <kvalo@kernel.org>,
"junyuu@chromium.org" <junyuu@chromium.org>,
Youghandhar Chintala <quic_youghand@quicinc.com>,
Jiri Slaby <jirislaby@kernel.org>,
Luis Chamberlain <mcgrof@kernel.org>,
Nick Kossifidis <mickflemm@gmail.com>,
Abhinav Kumar <quic_abhinavk@quicinc.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Manikanta Pubbisetty <quic_mpubbise@quicinc.com>,
Marc Zyngier <maz@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: RE: [PATCH v2 1/2] wifi: ath11k: Use platform_get_irq() to get the interrupt
Date: Wed, 1 Feb 2023 20:39:35 +0000 [thread overview]
Message-ID: <OSZPR01MB701949307C9DFB0E064B74ACAAD19@OSZPR01MB7019.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <20230201084131.v2.1.I69cf3d56c97098287fe3a70084ee515098390b70@changeid>
Hi Douglas,
Thank you for the patch.
> As of commit a1a2b7125e10 ("of/platform: Drop static setup of IRQ resource from DT core"), we need to
> use platform_get_irq() instead of
> platform_get_resource() to get our IRQs because
> platform_get_resource() simply won't get them anymore.
>
> This was already fixed in several other Atheros WiFi drivers, apparently in response to Zeal Robot
> reports. An example of another fix is commit 9503a1fc123d ("ath9k: Use platform_get_irq() to get the
> interrupt"). ath11k seems to have been missed in this effort, though.
>
> Without this change, WiFi wasn't coming up on my Qualcomm sc7280-based hardware. Specifically,
> "platform_get_resource(pdev, IORESOURCE_IRQ, i)" was failing even for i=0.
>
> Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1
>
> Fixes: a1a2b7125e10 ("of/platform: Drop static setup of IRQ resource from DT core")
> Fixes: 00402f49d26f ("ath11k: Add support for WCN6750 device")
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> Tested-by: Jun Yu <junyuu@chromium.org>
> ---
>
> Changes in v2:
> - Update commit message and point to patch that broke us (Jonas)
>
> drivers/net/wireless/ath/ath11k/ahb.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Unrelated to this patch, I think you need to call dma_unamp_resource() in the error path?
Cheers,
Prabhakar
> diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
> index d34a4d6325b2..f70a119bb5c8 100644
> --- a/drivers/net/wireless/ath/ath11k/ahb.c
> +++ b/drivers/net/wireless/ath/ath11k/ahb.c
> @@ -859,11 +859,11 @@ static int ath11k_ahb_setup_msi_resources(struct ath11k_base *ab)
> ab->pci.msi.ep_base_data = int_prop + 32;
>
> for (i = 0; i < ab->pci.msi.config->total_vectors; i++) {
> - res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
> - if (!res)
> - return -ENODEV;
> + ret = platform_get_irq(pdev, i);
> + if (ret < 0)
> + return ret;
>
> - ab->pci.msi.irqs[i] = res->start;
> + ab->pci.msi.irqs[i] = ret;
> }
>
> set_bit(ATH11K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags);
> --
> 2.39.1.456.gfc5497dd1b-goog
next prev parent reply other threads:[~2023-02-01 20:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-01 16:54 [PATCH v2 1/2] wifi: ath11k: Use platform_get_irq() to get the interrupt Douglas Anderson
2023-02-01 16:54 ` [PATCH v2 2/2] wifi: ath5k: " Douglas Anderson
2023-02-01 20:44 ` Prabhakar Mahadev Lad
2023-02-01 20:39 ` Prabhakar Mahadev Lad [this message]
2023-02-22 9:51 ` [PATCH v2 1/2] wifi: ath11k: " Kalle Valo
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