From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 61E3631CA72; Mon, 27 Oct 2025 19:01:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761591661; cv=none; b=O1RKGDeQUS68gj9jUbOD47GDLgQzBwyT8JzIV2fDe4YVxqsjLOCOx4SA7IlCvGw0Rp+EmqqnDN9r6bWdARiSepcgf3FzA3E4PDYmg82NKIMLq4GFTThheGGSUZziR/UeD1NcY8GQ3MSecUZrxKiIR9MLz8o/JO+hStB79frBG1s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761591661; c=relaxed/simple; bh=ea6PkkOWyUzF6czyjB6u2Et1lyimnJSSrwsRr2OqcXA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=H+u5mmIg797AVO8kkJvpWOfHQ0Mx2AhR9DRYO+dSjKKpK186A2TJA47ZUOYK6W6P2mHCGLiCpl6MqzaL6tZdHCOhD+BTZ5oJGbk+SzvkU8uh/hLZuP4lBgNRUZF5o1D00HEqtR+x2e1GIKb8ujTBRFaNLzyw0xMK1gBmB0SVg7M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=g+VGWrVo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="g+VGWrVo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3F50C4CEF1; Mon, 27 Oct 2025 19:01:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761591661; bh=ea6PkkOWyUzF6czyjB6u2Et1lyimnJSSrwsRr2OqcXA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g+VGWrVovqJsJ5VQk61+lnN3lzyVqdpncSgfUJXT/RSXmtzdMpUn/uJQFgrqoLX4x bCo0UM3tKrZUP4/Qb2k8IWuEC2dbhAudqvwgtBvaDpfRNC3diITVOSn06OhksSQxkE 1+OZiNxnUzCw14I+0nth54BZMt8K2DrjCuq/Ma1o= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Maciej W. Rozycki" , Bjorn Helgaas , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Thomas Bogendoerfer Subject: [PATCH 5.10 282/332] MIPS: Malta: Fix keyboard resource preventing i8042 driver from registering Date: Mon, 27 Oct 2025 19:35:35 +0100 Message-ID: <20251027183532.305904856@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251027183524.611456697@linuxfoundation.org> References: <20251027183524.611456697@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Maciej W. Rozycki commit bf5570590a981d0659d0808d2d4bcda21b27a2a5 upstream. MIPS Malta platform code registers the PCI southbridge legacy port I/O PS/2 keyboard range as a standard resource marked as busy. It prevents the i8042 driver from registering as it fails to claim the resource in a call to i8042_platform_init(). Consequently PS/2 keyboard and mouse devices cannot be used with this platform. Fix the issue by removing the busy marker from the standard reservation, making the driver register successfully: serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 and the resource show up as expected among the legacy devices: 00000000-00ffffff : MSC PCI I/O 00000000-0000001f : dma1 00000020-00000021 : pic1 00000040-0000005f : timer 00000060-0000006f : keyboard 00000060-0000006f : i8042 00000070-00000077 : rtc0 00000080-0000008f : dma page reg 000000a0-000000a1 : pic2 000000c0-000000df : dma2 [...] If the i8042 driver has not been configured, then the standard resource will remain there preventing any conflicting dynamic assignment of this PCI port I/O address range. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Maciej W. Rozycki Signed-off-by: Bjorn Helgaas Reviewed-by: Ilpo Järvinen Acked-by: Thomas Bogendoerfer Cc: stable@vger.kernel.org Link: https://patch.msgid.link/alpine.DEB.2.21.2510211919240.8377@angie.orcam.me.uk Signed-off-by: Greg Kroah-Hartman --- arch/mips/mti-malta/malta-setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/mips/mti-malta/malta-setup.c +++ b/arch/mips/mti-malta/malta-setup.c @@ -47,7 +47,7 @@ static struct resource standard_io_resou .name = "keyboard", .start = 0x60, .end = 0x6f, - .flags = IORESOURCE_IO | IORESOURCE_BUSY + .flags = IORESOURCE_IO }, { .name = "dma page reg",