From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D78ECC43381 for ; Mon, 25 Feb 2019 22:01:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BADA2146F for ; Mon, 25 Feb 2019 22:01:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551132104; bh=XMUa9Fxm/nMwpMk0lyntWxL/bwYSCpL2ThcmTMoFap8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=aTSr15p/V35O6zbvaTHuGOl2dN7HXv9iWUCBSkpLhT6ul1uoa5mGMo6uWzEdTa3/g 2oqY459wtFVyibhO1rKdr7QxqLKM2lqpy94Not9ILicV953+E8z+bn8ZTHC0SK+WUz j/ZCGnF5TZhP6tm9Uk3DCtuPWzIEj5esKGSe3c54= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730035AbfBYWBl (ORCPT ); Mon, 25 Feb 2019 17:01:41 -0500 Received: from mail.kernel.org ([198.145.29.99]:48368 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729278AbfBYVQg (ORCPT ); Mon, 25 Feb 2019 16:16:36 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 987B3217F4; Mon, 25 Feb 2019 21:16:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551129396; bh=XMUa9Fxm/nMwpMk0lyntWxL/bwYSCpL2ThcmTMoFap8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wqkp9ocm6ct2W8l6fSVSvzihgPYQqGgKaAJ6zbe3wvJv6ng3LnJEd+vIwAg0ZV4mO +qpcSmOkcERwa7XVdaI8i5QvPazXVuhvHIfCPEInPkoxrk+5HImNTvc0t/lRMWd099 BgfJU3PYhDuoI9UXCBfnCYqc39OZRveP8yjWF8tk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Marek , Lee Jones , Sasha Levin Subject: [PATCH 4.14 18/71] mfd: qcom_rpm: write fw_version to CTRL_REG Date: Mon, 25 Feb 2019 22:11:20 +0100 Message-Id: <20190225195035.880034846@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190225195034.555044862@linuxfoundation.org> References: <20190225195034.555044862@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 504e4175829c44328773b96ad9c538e4783a8d22 ] This is required as part of the initialization sequence on certain SoCs. If these registers are not initialized, the hardware can be unresponsive. This fixes the driver on apq8060 (HP TouchPad device). Signed-off-by: Jonathan Marek Signed-off-by: Lee Jones Signed-off-by: Sasha Levin --- drivers/mfd/qcom_rpm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c index 52fafea06067e..8d420c37b2a61 100644 --- a/drivers/mfd/qcom_rpm.c +++ b/drivers/mfd/qcom_rpm.c @@ -638,6 +638,10 @@ static int qcom_rpm_probe(struct platform_device *pdev) return -EFAULT; } + writel(fw_version[0], RPM_CTRL_REG(rpm, 0)); + writel(fw_version[1], RPM_CTRL_REG(rpm, 1)); + writel(fw_version[2], RPM_CTRL_REG(rpm, 2)); + dev_info(&pdev->dev, "RPM firmware %u.%u.%u\n", fw_version[0], fw_version[1], fw_version[2]); -- 2.19.1