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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 542DFCD37BE for ; Sat, 16 Sep 2023 12:24:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239285AbjIPMXt (ORCPT ); Sat, 16 Sep 2023 08:23:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239288AbjIPMX2 (ORCPT ); Sat, 16 Sep 2023 08:23:28 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 26287194 for ; Sat, 16 Sep 2023 05:23:23 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B210C433C8; Sat, 16 Sep 2023 12:23:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694867002; bh=9UAcrJcVaeAfzdgnI1xpIg6gdvbJ9icabXA+D9gWMuw=; h=Subject:To:Cc:From:Date:From; b=UagYJVxaJqY/S8fPeJVb5VTXpZlpeMhzGlWlr/2eflrSKd52f6BbTmW02P7lApbx9 jQxgKwHQ1uZLfqCZDUqyH2B+OJlpU4BYb48EsiOD5YIe5gTidg0mt1l3V3eJr3jRww KT6WCbc6Ev4TKiEuNwoDVKge79f1jI0BgozfLEUg= Subject: FAILED: patch "[PATCH] mtd: spi-nor: spansion: preserve CFR2V[7] when writing MEMLAT" failed to apply to 6.5-stable tree To: Takahiro.Kuwano@infineon.com, tudor.ambarus@linaro.org Cc: From: Date: Sat, 16 Sep 2023 14:22:58 +0200 Message-ID: <2023091658-glare-spinster-90d6@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The patch below does not apply to the 6.5-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.5.y git checkout FETCH_HEAD git cherry-pick -x 1e611e104b9acb6310b8c684d5acee0e11ca7bd1 # git commit -s git send-email --to '' --in-reply-to '2023091658-glare-spinster-90d6@gregkh' --subject-prefix 'PATCH 6.5.y' HEAD^.. Possible dependencies: 1e611e104b9a ("mtd: spi-nor: spansion: preserve CFR2V[7] when writing MEMLAT") d534fd9787d5 ("mtd: spi-nor: spansion: use CLPEF as an alternative to CLSR") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1e611e104b9acb6310b8c684d5acee0e11ca7bd1 Mon Sep 17 00:00:00 2001 From: Takahiro Kuwano Date: Wed, 26 Jul 2023 10:52:48 +0300 Subject: [PATCH] mtd: spi-nor: spansion: preserve CFR2V[7] when writing MEMLAT CFR2V[7] is assigned to Flash's address mode (3- or 4-ybte) and must not be changed when writing MEMLAT (CFR2V[3:0]). CFR2V shall be used in a read, update, write back fashion. Fixes: c3266af101f2 ("mtd: spi-nor: spansion: add support for Cypress Semper flash") Signed-off-by: Takahiro Kuwano Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230726075257.12985-3-tudor.ambarus@linaro.org Signed-off-by: Tudor Ambarus diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index 6b2532ed053c..6460d2247bdf 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -4,6 +4,7 @@ * Copyright (C) 2014, Freescale Semiconductor, Inc. */ +#include #include #include @@ -28,6 +29,7 @@ #define SPINOR_REG_CYPRESS_CFR2 0x3 #define SPINOR_REG_CYPRESS_CFR2V \ (SPINOR_REG_CYPRESS_VREG + SPINOR_REG_CYPRESS_CFR2) +#define SPINOR_REG_CYPRESS_CFR2_MEMLAT_MASK GENMASK(3, 0) #define SPINOR_REG_CYPRESS_CFR2_MEMLAT_11_24 0xb #define SPINOR_REG_CYPRESS_CFR2_ADRBYT BIT(7) #define SPINOR_REG_CYPRESS_CFR3 0x4 @@ -161,8 +163,18 @@ static int cypress_nor_octal_dtr_en(struct spi_nor *nor) int ret; u8 addr_mode_nbytes = nor->params->addr_mode_nbytes; + op = (struct spi_mem_op) + CYPRESS_NOR_RD_ANY_REG_OP(addr_mode_nbytes, + SPINOR_REG_CYPRESS_CFR2V, 0, buf); + + ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto); + if (ret) + return ret; + /* Use 24 dummy cycles for memory array reads. */ - *buf = SPINOR_REG_CYPRESS_CFR2_MEMLAT_11_24; + *buf &= ~SPINOR_REG_CYPRESS_CFR2_MEMLAT_MASK; + *buf |= FIELD_PREP(SPINOR_REG_CYPRESS_CFR2_MEMLAT_MASK, + SPINOR_REG_CYPRESS_CFR2_MEMLAT_11_24); op = (struct spi_mem_op) CYPRESS_NOR_WR_ANY_REG_OP(addr_mode_nbytes, SPINOR_REG_CYPRESS_CFR2V, 1, buf);