From patchwork Fri Sep 22 01:49:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 725537 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 0EA4AE7D0C1 for ; Fri, 22 Sep 2023 01:51:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230238AbjIVBvS (ORCPT ); Thu, 21 Sep 2023 21:51:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230162AbjIVBvR (ORCPT ); Thu, 21 Sep 2023 21:51:17 -0400 Received: from mail-ua1-x934.google.com (mail-ua1-x934.google.com [IPv6:2607:f8b0:4864:20::934]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 308BA196 for ; Thu, 21 Sep 2023 18:51:11 -0700 (PDT) Received: by mail-ua1-x934.google.com with SMTP id a1e0cc1a2514c-7aae07e7ba4so688416241.1 for ; Thu, 21 Sep 2023 18:51:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1695347470; x=1695952270; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=ixTqiGVx8ZXpjpR7y6lRGGFsz7OZ+ET+MZdQ4NUAsFY=; b=0BJaoaU9XC4nRsOaixYnv7sFr6wZ+OzRUAHSrqBaxDbv1QODUjSQlNmiXQ3LqlMb9M 8Rn+AherQVkpmDua9c3SV3IlLaruQkaMlPl00dxge+ZhLpQBt8gVEO140LGysAdrgH08 sWpMUdsisqUbrNrOanobDjOOQlFYF04tgJiPd/qjw/dhdw+aRGz0oLe+ltzLrPUXMHun XaGi5dsH+PMzEWeXsyo7+tYcf5POJ+VbXP8w6Do8ILFFR/t4VmxQhTHMaH7lr16Aw6pJ z2ZQ6N7NZk182Y9wOaIVJuFj9vumFEzB8TXosPtzIny3h3i23SrmsB4+2SEBO/RLtSoN Lj1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695347470; x=1695952270; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ixTqiGVx8ZXpjpR7y6lRGGFsz7OZ+ET+MZdQ4NUAsFY=; b=KWEA8smbuaijczruqHv+sN6nTZDZd3YUTtRNAIaMpJ/IwpoEV+JgcOlbEtdGAUXzlw xx2zPPP4FxajgHO8TFKaJNa007+isUXqtvf0fXOBAzcoLPyyq+IX6q9sBdXSpYjamPMn a0AyY8iNJg/VHCEuwxrQJ6qnVD6SbGjFtEipmR8j6r0n0h1FjtdQdC4b1S0oBDpnSvCU g/CWpY8TRt2/7USYCUQ43j2I/jrTtai3lQW2AdBLQQeIOxnlOHHZQ4uh9oAsGyXehJSq MfW4eBgahJN4t8U+uJmyBwLK7YNh8og5fRSzk7DRj1bWCcDWiKOO+EtOncN0cJEQwegX dkQA== X-Gm-Message-State: AOJu0Yw09Uxyi+nP6QDdOBTrG8TywYllOl8vs3yiDnf9FPQYDba/a0BX ZPR1mWJEm9YrioRcFIZEjHGiUQ== X-Google-Smtp-Source: AGHT+IHj0Lr/Be8FAt3qA85CiKz6e+2ivU8VOj029IZto83YwRL3xxqYZvq42aLws+pyGjAy7HTN1A== X-Received: by 2002:a05:6102:302c:b0:44d:4d5f:79a4 with SMTP id v12-20020a056102302c00b0044d4d5f79a4mr6139892vsa.20.1695347470206; Thu, 21 Sep 2023 18:51:10 -0700 (PDT) Received: from [127.0.1.1] ([2601:1c2:1800:f680:fa26:6227:be1c:67f0]) by smtp.gmail.com with ESMTPSA id y10-20020a63b50a000000b0057412d84d25sm1973856pge.4.2023.09.21.18.51.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Sep 2023 18:51:09 -0700 (PDT) From: Drew Fustini Date: Thu, 21 Sep 2023 18:49:49 -0700 Subject: [PATCH 2/6] mmc: sdhci: add __sdhci_execute_tuning() to header MIME-Version: 1.0 Message-Id: <20230921-th1520-mmc-v1-2-49f76c274fb3@baylibre.com> References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> In-Reply-To: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Guo Ren , Fu Wei , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: Robert Nelson , Jason Kridner , Xi Ruoyao , Han Gao , Icenowy Zheng , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695347467; l=1797; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=jbhsItAspw9Y505sHjMPZkocmfoBMXCEAbwf8HhAE8A=; b=Y7zI2YH3NQD0FaxiSQ4VnQS2RFqoHRb3cydOhAc2I8kHbSV81T3H1sj3MdzwctHhwtJlv39EH CGD7yjz/YJWDePGxpJZ2guSYNA4iKk5mDzTqvA3yDNkTUQHmVRbKFIQ X-Developer-Key: i=dfustini@baylibre.com; a=ed25519; pk=p3GKE9XFmjhwAayAHG4U108yag7V8xQVd4zJLdW0g7g= Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Expose __sdhci_execute_tuning() so that it can be called from the mmc host controller drivers. In the sdhci-of-dwcmshc driver, sdhci_dwcmshc_th1520_ops sets platform_execute_tuning to th1520_execute_tuning(). That function has to manipulate phy registers before tuning can be performed. To avoid copying the code verbatim from __sdhci_execute_tuning() into th1520_execute_tuning(), make it possible for __sdhci_execute_tuning() to be called from sdhci-of-dwcmshc. Signed-off-by: Drew Fustini --- drivers/mmc/host/sdhci.c | 2 +- drivers/mmc/host/sdhci.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index ff41aa56564e..fd607058d176 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2841,7 +2841,7 @@ void sdhci_send_tuning(struct sdhci_host *host, u32 opcode) } EXPORT_SYMBOL_GPL(sdhci_send_tuning); -static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) +int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) { int i; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index f219bdea8f28..a20864fc0641 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -793,6 +793,7 @@ void sdhci_set_bus_width(struct sdhci_host *host, int width); void sdhci_reset(struct sdhci_host *host, u8 mask); void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing); int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode); +int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode); void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios); int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios);