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 0EF011474AA; Thu, 11 Apr 2024 10:49:09 +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=1712832549; cv=none; b=TZY1QliOO8E5mt31ZE8+iGsNT21Y2cc4R9pXRU7lj3YGSdH6oXmh9ml2PUZxCcYOkkkCA1zfQJo0zthjR6iCDhjnartD5P+jQKuMCwYQU3+ExFkuzaFpD0QVJruIxjZ4iW3og/OfrqDQtdoseQqwCkHkmpSxkyVds4NIcIp84w8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712832549; c=relaxed/simple; bh=z6NzAjFYDVyjqQt7X1kjT19rd98CSCD9Fvlogbu5ezw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=fwmEdCWOyBTPrJWU6n9O685DMBH6wAkIR37Og/rbYOsD7Rfyoyxb8OjCuexIiMPRgNxQbS6r+M3OR0vTERRCLzPbJLNQzdTCZwp5lYeXJZKK1vOHxN7D6IcvZbyCU44AHz5R/C8kfFPia4VKtghM3l0LHx9qjlc11EXusud5ZuU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=T35IBuZi; 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="T35IBuZi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 874EFC433B1; Thu, 11 Apr 2024 10:49:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712832548; bh=z6NzAjFYDVyjqQt7X1kjT19rd98CSCD9Fvlogbu5ezw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T35IBuZidWMF2Q+FRoPUzVRrJE5vfG3oEJ79cnZeIePE3E+Dkxs7lA2tz4FF6xWbJ ickf2W8dd4doBeZrtZ+ASaPokU+7NgFnpMnTLIMR1CVH9xr+dw7zS5bnK2UWzRm4oO CTeBzkeCZ8J217YwheC6j3cmjC0pI4kXVkJljdDU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Gwendal Grignou , Kuppuswamy Sathyanarayanan , Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Sasha Levin Subject: [PATCH 6.1 79/83] platform/x86: intel-vbtn: Update tablet mode switch at end of probe Date: Thu, 11 Apr 2024 11:57:51 +0200 Message-ID: <20240411095415.066032299@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240411095412.671665933@linuxfoundation.org> References: <20240411095412.671665933@linuxfoundation.org> User-Agent: quilt/0.67 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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Gwendal Grignou [ Upstream commit 434e5781d8cd2d0ed512d920c6cdeba4b33a2e81 ] ACER Vivobook Flip (TP401NAS) virtual intel switch is implemented as follow: Device (VGBI) { Name (_HID, EisaId ("INT33D6") ... Name (VBDS, Zero) Method (_STA, 0, Serialized) // _STA: Status ... Method (VBDL, 0, Serialized) { PB1E |= 0x20 VBDS |= 0x40 } Method (VGBS, 0, Serialized) { Return (VBDS) /* \_SB_.PCI0.SBRG.EC0_.VGBI.VBDS */ } ... } By default VBDS is set to 0. At boot it is set to clamshell (bit 6 set) only after method VBDL is executed. Since VBDL is now evaluated in the probe routine later, after the device is registered, the retrieved value of VBDS was still 0 ("tablet mode") when setting up the virtual switch. Make sure to evaluate VGBS after VBDL, to ensure the convertible boots in clamshell mode, the expected default. Fixes: 26173179fae1 ("platform/x86: intel-vbtn: Eval VBDL after registering our notifier") Signed-off-by: Gwendal Grignou Reviewed-by: Kuppuswamy Sathyanarayanan Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20240329143206.2977734-3-gwendal@chromium.org Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin --- drivers/platform/x86/intel/vbtn.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/intel/vbtn.c b/drivers/platform/x86/intel/vbtn.c index c10c99a31a90a..224139006a433 100644 --- a/drivers/platform/x86/intel/vbtn.c +++ b/drivers/platform/x86/intel/vbtn.c @@ -136,8 +136,6 @@ static int intel_vbtn_input_setup(struct platform_device *device) priv->switches_dev->id.bustype = BUS_HOST; if (priv->has_switches) { - detect_tablet_mode(&device->dev); - ret = input_register_device(priv->switches_dev); if (ret) return ret; @@ -316,6 +314,9 @@ static int intel_vbtn_probe(struct platform_device *device) if (ACPI_FAILURE(status)) dev_err(&device->dev, "Error VBDL failed with ACPI status %d\n", status); } + // Check switches after buttons since VBDL may have side effects. + if (has_switches) + detect_tablet_mode(&device->dev); device_init_wakeup(&device->dev, true); /* -- 2.43.0