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=ham 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 10EABC43381 for ; Mon, 25 Feb 2019 21:51:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BB7942083D for ; Mon, 25 Feb 2019 21:51:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551131518; bh=b1NT5Dju/rWvjAeNlem/eBiwsEmaWOdRTuzjC78OmlA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=bY/QQT9sKxsxuAckMXgSzWyjSdRTNoKjnlrtBH0u3U18ThOECxLuN/zK9cr7ofCs6 CYUBvuKu8GvKepz4/QwWyYGudBMs88J/RT3wa/bjnZNnqAiHFddLnjtJ8dTRFehcKp rFnl3hDllCkpdgRU3or9rS6Zfd8rS2lH8+N7CexU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730533AbfBYVXC (ORCPT ); Mon, 25 Feb 2019 16:23:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:57356 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730474AbfBYVW6 (ORCPT ); Mon, 25 Feb 2019 16:22:58 -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 5E44121871; Mon, 25 Feb 2019 21:22:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551129777; bh=b1NT5Dju/rWvjAeNlem/eBiwsEmaWOdRTuzjC78OmlA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bABn9Ky8U5P0n4LQsluBJ+tdffSa4WuM1sbWzyjT/SZKuRL6SzorstfyYtl4ZJdBr uqIz8P+qf1S1mbYAAwLZ+11EkTiYdg2Ymca21agfL2ekBFbtMv6lM7HlA6CRHD7ZKG +q6MWyETdp+SgVyMcN4KBx2wTyayyqYdrLxIBIhs= 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 4.19 027/152] mfd: qcom_rpm: write fw_version to CTRL_REG Date: Mon, 25 Feb 2019 22:10:19 +0100 Message-Id: <20190225195045.544133545@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190225195043.645958524@linuxfoundation.org> References: <20190225195043.645958524@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 4.19-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