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Tue, 11 May 2021 15:54:18 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1lgTm4-0001Am-E1; Tue, 11 May 2021 15:54:16 +0100 Date: Tue, 11 May 2021 15:54:16 +0100 From: Russell King - ARM Linux admin To: Ansuel Smith Cc: Ard Biesheuvel , Matthew Wilcox , Jonathan Corbet , Linus Walleij , Florian Fainelli , Abbott Liu , Luis Chamberlain , Palmer Dabbelt , Linux Doc Mailing List , Linux Kernel Mailing List , Linux ARM Subject: Re: [PATCH] arm: Enlarge IO_SPACE_LIMIT needed for some SoC Message-ID: <20210511145416.GM1336@shell.armlinux.org.uk> References: <20210511021656.17719-1-ansuelsmth@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210511_075429_954066_823346D7 X-CRM114-Status: GOOD ( 16.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, May 11, 2021 at 02:15:21PM +0200, Ansuel Smith wrote: > 0000:01:00.0 Network controller: Qualcomm Atheros QCA9984 802.11ac Wave 2 Wireless Network Adapter > Subsystem: Qualcomm Atheros Device cafe > Device tree node: /sys/firmware/devicetree/base/soc/pci@1b500000/bridge@0,0/wifi@1,0 > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Latency: 0, Cache Line Size: 64 bytes > Interrupt: pin A routed to IRQ 53 > Region 0: Memory at 08000000 (64-bit, non-prefetchable) [size=2M] It seems this Atheros device does not make any use of I/O, so this device should be fine. > 0001:01:00.0 Network controller: Qualcomm Atheros QCA9984 802.11ac Wave 2 Wireless Network Adapter > Subsystem: Qualcomm Atheros Device cafe > Device tree node: /sys/firmware/devicetree/base/soc/pci@1b700000/bridge@0,0/wifi@1,0 > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Latency: 0, Cache Line Size: 64 bytes > Interrupt: pin A routed to IRQ 54 > Region 0: Memory at 2e000000 (64-bit, non-prefetchable) [size=2M] This device also seems to not make use of any I/O. I don't see any reason probing of these two drivers should fail if there is no or reduced I/O space. Please can you share the kernel messages so we can see exactly what is failing and how? -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel