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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 2D7FEC433E2 for ; Tue, 9 Jun 2020 18:04:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 008E9206D5 for ; Tue, 9 Jun 2020 18:04:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591725844; bh=mlChgyTv5SQLeyzNVZm89cxyxj49nT+0TF3uaH4MMaI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=mwxhdqzldEHPUuYh7FysFcDOh4TaRvQOtwLwSSBXWTyFBLtFWa1wEH6o6Vp/H4VuE lhYiQcbdepTT4VSQ404GnrFj5BL+9Y359Tr8mTFX7z62bFIRUVZ4cbeVqQiEWKW+V2 jENteNzdZKQ5zuxkV+QyhDnT9r+kAA/Fzkfqx2qw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733051AbgFISDk (ORCPT ); Tue, 9 Jun 2020 14:03:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:43126 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732922AbgFIRwl (ORCPT ); Tue, 9 Jun 2020 13:52:41 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.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 72603207F9; Tue, 9 Jun 2020 17:52:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591725160; bh=mlChgyTv5SQLeyzNVZm89cxyxj49nT+0TF3uaH4MMaI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GavMI/mRc+WajWXLqaPhQxH5t7oLAx/qRwoQ5nOfH3LKYBOZJBhf0AZNkaRQchwZ6 AKlgmvnQyqlKmBAqMUYv+37YQ9jNqV3LyppgtFKBtDVIUBE1iGHO82GYQLPRv8Knbp hcwPWiRBIiEz0dakRjdL1ut921HqfEzUBJ2ZBs8Y= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Srinivas Kandagatla , Douglas Anderson Subject: [PATCH 5.4 26/34] nvmem: qfprom: remove incorrect write support Date: Tue, 9 Jun 2020 19:45:22 +0200 Message-Id: <20200609174056.359919958@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200609174052.628006868@linuxfoundation.org> References: <20200609174052.628006868@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Srinivas Kandagatla commit 8d9eb0d6d59a5d7028c80a30831143d3e75515a7 upstream. qfprom has different address spaces for read and write. Reads are always done from corrected address space, where as writes are done on raw address space. Writing to corrected address space is invalid and ignored, so it does not make sense to have this support in the driver which only supports corrected address space regions at the moment. Fixes: 4ab11996b489 ("nvmem: qfprom: Add Qualcomm QFPROM support.") Signed-off-by: Srinivas Kandagatla Reviewed-by: Douglas Anderson Cc: stable Link: https://lore.kernel.org/r/20200522113341.7728-1-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/qfprom.c | 14 -------------- 1 file changed, 14 deletions(-) --- a/drivers/nvmem/qfprom.c +++ b/drivers/nvmem/qfprom.c @@ -27,25 +27,11 @@ static int qfprom_reg_read(void *context return 0; } -static int qfprom_reg_write(void *context, - unsigned int reg, void *_val, size_t bytes) -{ - struct qfprom_priv *priv = context; - u8 *val = _val; - int i = 0, words = bytes; - - while (words--) - writeb(*val++, priv->base + reg + i++); - - return 0; -} - static struct nvmem_config econfig = { .name = "qfprom", .stride = 1, .word_size = 1, .reg_read = qfprom_reg_read, - .reg_write = qfprom_reg_write, }; static int qfprom_probe(struct platform_device *pdev)