From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 EE523F519; Fri, 28 Jun 2024 07:31:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719559870; cv=none; b=jlzbFOqEqLhR78iCgmgHLhwfYCbxfXWqb3WrY+lQ8HrxKqXArD+di6I4j2MIypuDoOmsccDJ7AyYzEcsx7ZVf7U06EDlGV4gOG7IykTkl+SVvpdmPFMUUj/VbuV0f83GOeJxwQ87R+fJV55zasG6HAFAVLP99edym2tR+k91utM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719559870; c=relaxed/simple; bh=Nhu4vITwG68Td8Y4N60nUtMEr6DEXhwrVURy84rRJYE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=CUh49FG861jjip/TfH06m6aF30454es4WJgxN2pMznjDPCt5uAQW2p5UpPaUS9LPUAQWAlIPYoYRN7u/+1ZCfyLLmHMMHsny8a3TinY8779vSLTxhecXWJl72VngdxkoRv9JZ3KPEIERRP3mX65u/LTqc98CGnJxlph3ZV3uzmo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VXMSb6an; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VXMSb6an" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C9417C116B1; Fri, 28 Jun 2024 07:31:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1719559869; bh=Nhu4vITwG68Td8Y4N60nUtMEr6DEXhwrVURy84rRJYE=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=VXMSb6anbJdRYHWSQ2jlfDNTT3aPmtmb9tZ3EPQjlT1crbdQriZqfQwMw4ZqoRFbT gUR7rT2rTasorFKm5OjMiUIBZ3WLYWWkd//XnJ1vFuBHdnfWslNDPRM1vMNiDb/EXl e8XhDzZkKNI+sAzb4ES1MCGZzNNvsuZyAZZS6hISiMzKqsHqF+jX5cyAjsXFg/T0yD py5n3M9LwPhqYw58W8Rkx55K80FPdhyf10M8KuEYpuUipHTE86lfIsTQRnl0kYQ4T2 +kDfTaDoalRYcbTJLKRjX9GagTcKTts6l+icSmhE+JbLiSxe1HN/8xDRdRW8CxU+Pm yNqBizhHiTqCg== Message-ID: <0cc0aab1-f7bf-4a87-af5a-22cf842fbf80@kernel.org> Date: Fri, 28 Jun 2024 09:31:01 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] mmc: sdhci-of-ma35d1: Add Nuvoton MA35D1 SDHCI driver To: Shan-Chun Hung , ulf.hansson@linaro.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, adrian.hunter@intel.com, p.zabel@pengutronix.de, pbrobinson@gmail.com, serghox@gmail.com, mcgrof@kernel.org, prabhakar.mahadev-lad.rj@bp.renesas.com, forbidden405@outlook.com, tmaimon77@gmail.com, andy.shevchenko@gmail.com, linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ychuang3@nuvoton.com, schung@nuvoton.com References: <20240626094900.581552-1-shanchun1218@gmail.com> <20240626094900.581552-3-shanchun1218@gmail.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 26/06/2024 11:49, Shan-Chun Hung wrote: > Add the SDHCI driver for the MA35D1 platform. It is based upon the > SDHCI interface, but requires some extra initialization. > > +static int ma35_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct sdhci_pltfm_host *pltfm_host; > + struct sdhci_host *host; > + struct ma35_priv *priv; > + int err; > + u32 extra, ctl; > + > + host = sdhci_pltfm_init(pdev, &sdhci_ma35_pdata, sizeof(struct ma35_priv)); > + if (IS_ERR(host)) > + return PTR_ERR(host); > + > + err = devm_add_action_or_reset(dev, ma35_sdhci_pltfm_free, pdev); > + if (err) > + return dev_err_probe(dev, err, "Failed to register sdhci_pltfm_free action\n"); > + > + /* Extra adma table cnt for cross 128M boundary handling. */ > + extra = DIV_ROUND_UP_ULL(dma_get_required_mask(dev), SZ_128M); > + extra = min(extra, SDHCI_MAX_SEGS); > + > + host->adma_table_cnt += extra; > + pltfm_host = sdhci_priv(host); > + priv = sdhci_pltfm_priv(pltfm_host); > + > + pltfm_host->clk = devm_clk_get_optional_enabled(dev, NULL); > + if (IS_ERR(pltfm_host->clk)) > + return dev_err_probe(dev, IS_ERR(pltfm_host->clk), "failed to get clk\n"); Ykes, you cannot return IS_ERR. > + > + err = mmc_of_parse(host->mmc); > + if (err) > + return err; > + > + priv->rst = devm_reset_control_get_exclusive(dev, NULL); > + if (IS_ERR(priv->rst)) > + return dev_err_probe(dev, PTR_ERR(priv->rst), "failed to get reset control\n"); > + Best regards, Krzysztof