From patchwork Thu Nov 2 02:48:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 740555 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3F2F31851 for ; Thu, 2 Nov 2023 02:49:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="2tGNWYet" Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66473126 for ; Wed, 1 Nov 2023 19:49:12 -0700 (PDT) Received: by mail-pg1-x533.google.com with SMTP id 41be03b00d2f7-5bd099e3d3cso348723a12.1 for ; Wed, 01 Nov 2023 19:49:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1698893352; x=1699498152; 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=l++Rbeq1YJ0LFMw4HKx/yirX8siQghzI93qQn3u3z5E=; b=2tGNWYethgymb+S8VTwX3Lp6ar/+OhJHD2GrGVbP+zIRD5rpYN+ghPKwDl/giElcwp JOTdvKU9tjhxFLjqfjzLdS5BmwoLmfvp3tjtwlACyd/Vxyq91kbUDglj9O3jaj9Y7WBM zbtARlC//3YPcfcm1+qe1cwOhJIWYv7Gy43JQ+6G5cnh9dBwH9v+rBO7xaKyNMzk9OJv ZelvXjg+/ipvyy8By54ozoPRIfZnUsFgkKq4S5b1Mo5glCT6S5CIzYC3Oh6E5FHR7jva urJJZ5/pkTiNeGNpHtp4gQFilciv/tZolnjPkrjO+dLRlOsLfdH8x3kHOqogB2Sk9jMm E0Xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698893352; x=1699498152; 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=l++Rbeq1YJ0LFMw4HKx/yirX8siQghzI93qQn3u3z5E=; b=iHe9yd7n7hBT09jvADC3BuidozHybMb5hrCNY134gtUhQOO410xgQWRhKWyz2VdqNF Eh9LLf9U1yTO/WUmyTCcEk5jGjIyqzL6BlpjKZ8X+Ny8FUBMnOixsPYgVz3YInmo/xq+ yRoajRy7LOFStTfNtgdhJ27df+XQiJ2X084/TDwArCC1dgIF7Gjs1K5mh2lBsrHlP4zb s8T7x6VMAUOCVQHSlyF3zPyMlAytyES2fSHl8FPe+lDZ9IL2PDXmcjs4Xd0jLEzc03do 9aflpz/oudkemj3I3EZzC3P9pXc4Y7kZxyN5aJZriZMYFDKgPQlTR9kS/PxZp+Azfhv3 nvHg== X-Gm-Message-State: AOJu0YyKn4Q/tKVpOpkT3lffhbaFIQWRpTS1MQQzzw3Ng1uMziFEpYud TuqfCfCcHov2tC/9ZWrhBH90fg== X-Google-Smtp-Source: AGHT+IF6H7iALM4kXriivWJWeUhTUNwySvr9ZxIwWfw3Qv3hEFAdQDBio6I+smOxkk0K56iCSkXjuw== X-Received: by 2002:a17:902:e28a:b0:1c6:2ae1:dc28 with SMTP id o10-20020a170902e28a00b001c62ae1dc28mr11966568plc.36.1698893351862; Wed, 01 Nov 2023 19:49:11 -0700 (PDT) Received: from [127.0.1.1] ([2601:1c2:1800:f680:7e4c:4d4e:6943:bc0f]) by smtp.gmail.com with ESMTPSA id n4-20020a170902e54400b001b850c9d7b3sm1925787plf.249.2023.11.01.19.49.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Nov 2023 19:49:11 -0700 (PDT) From: Drew Fustini Date: Wed, 01 Nov 2023 19:48:53 -0700 Subject: [PATCH v4 2/7] mmc: sdhci: add __sdhci_execute_tuning() to header Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231101-th1520-mmc-v4-2-86e0216b5994@baylibre.com> References: <20231101-th1520-mmc-v4-0-86e0216b5994@baylibre.com> In-Reply-To: <20231101-th1520-mmc-v4-0-86e0216b5994@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=1698893345; l=2057; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=O0pl7kPWnknxTc+1ciCix3vi2PmSyK8UTzQqhv8rZP0=; b=5GZXJKYUX2PFkk79fptSj56AIJweFxSSLNmoeJAhqhhT1nEb/6DFj2Ax/BGJa/TaoghgrIX10 cU1vL2QBWy9BYkEYSEo48YklZTTrxD2hSaGn6Vgf6Is+H9lAI4Fza/e X-Developer-Key: i=dfustini@baylibre.com; a=ed25519; pk=p3GKE9XFmjhwAayAHG4U108yag7V8xQVd4zJLdW0g7g= 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 Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci.c | 3 ++- drivers/mmc/host/sdhci.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index ff41aa56564e..c79f73459915 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; @@ -2879,6 +2879,7 @@ static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) sdhci_reset_tuning(host); return -EAGAIN; } +EXPORT_SYMBOL_GPL(__sdhci_execute_tuning); int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) { 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);