From patchwork Thu Sep 6 20:35:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cedric Roux X-Patchwork-Id: 10591025 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9D3CE112B for ; Thu, 6 Sep 2018 20:32:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 86B9E2ABFF for ; Thu, 6 Sep 2018 20:32:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 779412AC75; Thu, 6 Sep 2018 20:32:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=2.0 tests=BAYES_00,FREEMAIL_FROM, MAILING_LIST_MULTI,RCVD_IN_BL_SPAMCOP_NET,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2E2492ABFF for ; Thu, 6 Sep 2018 20:32:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726131AbeIGBKH (ORCPT ); Thu, 6 Sep 2018 21:10:07 -0400 Received: from smtp2-g21.free.fr ([212.27.42.2]:63943 "EHLO smtp2-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726116AbeIGBKG (ORCPT ); Thu, 6 Sep 2018 21:10:06 -0400 Received: from [IPv6:2a01:cb1d:1a3:2a00:dacb:8aff:fef1:ed46] (unknown [IPv6:2a01:cb1d:1a3:2a00:dacb:8aff:fef1:ed46]) (Authenticated sender: sed) by smtp2-g21.free.fr (Postfix) with ESMTPSA id 80CAC2003E0; Thu, 6 Sep 2018 22:32:44 +0200 (CEST) To: Kukjin Kim , Krzysztof Kozlowski , Russell King , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org From: Cedric Roux Subject: [PATCH v2] ARM: s3c24xx: Correct SD card write protect detection on Mini2440 Message-ID: <96fe9889-2649-7a1e-23bf-b4d16713d212@free.fr> Date: Thu, 6 Sep 2018 22:35:01 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 Content-Language: en-US Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The mini2440 computer uses "active high" to signal that the "write protect" of the inserted MMC is set. The current code uses the opposite, leading to a wrong detection of write protection. The solution is simply to use ".wprotect_invert = 1" in the description of the MMC. Signed-off-by: Cedric Roux --- arch/arm/mach-s3c24xx/mach-mini2440.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c index 95753e0..4cd8d45 100644 --- a/arch/arm/mach-s3c24xx/mach-mini2440.c +++ b/arch/arm/mach-s3c24xx/mach-mini2440.c @@ -232,10 +232,11 @@ static struct s3c2410fb_mach_info mini2440_fb_info __initdata = { /* MMC/SD */ static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = { - .gpio_detect = S3C2410_GPG(8), - .gpio_wprotect = S3C2410_GPH(8), - .set_power = NULL, - .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34, + .wprotect_invert = 1, + .gpio_detect = S3C2410_GPG(8), + .gpio_wprotect = S3C2410_GPH(8), + .set_power = NULL, + .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34, }; /* NAND Flash on MINI2440 board */