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 F278332548B; Mon, 27 Oct 2025 19:06:21 +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=1761591982; cv=none; b=Hq2mCVawdXPCiOisqOcPWkibCuDdMsyU9owAeFGlmXFSkhO8txxR1tQ54EfoJjwF9VwNK++sk6kFniS7cUROvIx6xB1t7p4BwO2i2X1D3TIMUCBKCqIYGWSavl9uhestU3djgLPKkW9GmhfvJ1kwFgf7GSnLRmVhbV2qorXwFqo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761591982; c=relaxed/simple; bh=MY5FrsxEHayHmaghgFmLYSHGgzDPf+Rca355hsb+bbM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KmDACjReppFXtQlI82yHxAcKe/HXKjKf4OaTHsfk8UZF1nHlxyDfgj1ToKEUc7XncHoB96AkwyEp46wv+2UHuUzpi+aSjV+i0M6malJofjQHe9bP5pgsBdbb+wuphZr+8SBObT1lKYAND+HMxazjkmH9dweYMhwxC9AGKoFHQCI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0WmXoNZa; 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="0WmXoNZa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85DBFC4CEF1; Mon, 27 Oct 2025 19:06:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761591981; bh=MY5FrsxEHayHmaghgFmLYSHGgzDPf+Rca355hsb+bbM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0WmXoNZazZi+pAyal90h7XKDXR5jxIs0LTastjkEVno60AVijGtA41ww9GQZmbY5L qlbQEjUipiX4ywOqR5Gkr4/x0Tt14y2gID/MO/PWXvEkcpY0qXGIFfz6zqWMOz6AUX MFj2VeuYzJ7ksF+58BoyZUTVXzSzR2gH0nly6G1A= 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 5.15 065/123] MIPS: Malta: Fix keyboard resource preventing i8042 driver from registering Date: Mon, 27 Oct 2025 19:35:45 +0100 Message-ID: <20251027183448.131485514@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251027183446.381986645@linuxfoundation.org> References: <20251027183446.381986645@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 5.15-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",