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 B07FE1369AE; Tue, 25 Jun 2024 07:44:51 +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=1719301491; cv=none; b=AVtc4JRkoq3A5tfKdxedGaJysHFjKo01db8+usTd7GGQoBYKH4tGLucE5DwtJz33wtV5cb8UbtqammXgW5H8glf+RutRF0aqxsqBIB+dNF20G+BX/qzUWQfDumz8guBRzJ0La0NSkDbVafs8aduL74oWgf30gIK5G3xjm1Tj3rI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719301491; c=relaxed/simple; bh=ybVLUsEP8ZJbdg5QOlbsb+sUaB7/Iz2oA4C1GVB7x6Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=lz75lBgFGO23GV6jWycl2ILw9jMQbxLgqMUrMwk9fxXSDzh1F5Kwj8WYftvwktcpwfEiV9tCt9utPQoF9j0Ms7Zvs6yvKe1e+JFpDBO3Z144xY9J6420V9Nx6T7XpFeHN26DRmbCwqzdaWFFVCYrdAPF5Ml09DHJ3/NEZ5zrl7I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EdVuZ7ek; 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="EdVuZ7ek" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 17D05C32781; Tue, 25 Jun 2024 07:44:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1719301491; bh=ybVLUsEP8ZJbdg5QOlbsb+sUaB7/Iz2oA4C1GVB7x6Q=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=EdVuZ7ekeDBJC9hl/02sgo5Nb7x6Neawutm8dpQYpP+65HeRzdnu4FLugkSDbpysk /ctJEQPoE2xJoNzCgMGbghEUpktUXWgYnop9JwItH4ZWlRtzsgkMmys+Sld+MXjt0F z4g5l7wg+Lfpvh0kdYFsDV24Ah9LRepmJmqc4XULPfBaSEBiQBjLUtYHnb+6wUsLZc whFq1G8qWWiJYzgHNfAAMcj3akjt0KyirJNd2qxpC4U1uY6K5FpMp7uy1QoFx8qWh8 nwUb71k332/T3aQNX0rdrEDHXURNA2IzEtoCFNKIWEaJif8wrAjsEjIA/faJcIuKw8 A9JzG8sCKtw4A== Message-ID: <39bcab8b-ed9c-4da9-b1ee-32dbfb2a23a4@kernel.org> Date: Tue, 25 Jun 2024 09:44:42 +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 1/2] clk: imx93: Drop macro IMX93_CLK_END To: Pengfei Li , krzk+dt@kernel.org, robh@kernel.org, abelvesa@kernel.org, mturquette@baylibre.com, sboyd@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, ping.bai@nxp.com, ye.li@nxp.com, peng.fan@nxp.com, aisheng.dong@nxp.com, frank.li@nxp.com Cc: kernel@pengutronix.de, festevam@gmail.com, linux-clk@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20240625175147.94985-1-pengfei.li_1@nxp.com> <20240625175147.94985-2-pengfei.li_1@nxp.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 25/06/2024 19:51, Pengfei Li wrote: > IMX93_CLK_END was previously defined in imx93-clock.h to > indicate the number of clocks, but it is not part of the > ABI, so it should be dropped. > > Now, the driver gets the number of clks by querying the > maximum index in the clk array. Due to the discontinuity > in the definition of clk index, with some gaps present, > the total count cannot be obtained by summing the array > size. > > Signed-off-by: Pengfei Li > --- > drivers/clk/imx/clk-imx93.c | 25 +++++++++++++++++++++---- > 1 file changed, 21 insertions(+), 4 deletions(-) > > diff --git a/drivers/clk/imx/clk-imx93.c b/drivers/clk/imx/clk-imx93.c > index c6a9bc8ecc1f..68c929512e16 100644 > --- a/drivers/clk/imx/clk-imx93.c > +++ b/drivers/clk/imx/clk-imx93.c > @@ -257,6 +257,20 @@ static const struct imx93_clk_ccgr { > static struct clk_hw_onecell_data *clk_hw_data; > static struct clk_hw **clks; > > +static int imx_clks_get_num(void) > +{ > + u32 val = 0; > + int i; > + > + for (i = 0; i < ARRAY_SIZE(root_array); i++) > + val = max_t(u32, val, root_array[i].clk); > + > + for (i = 0; i < ARRAY_SIZE(ccgr_array); i++) > + val = max_t(u32, val, ccgr_array[i].clk); > + > + return val + 1; > +} > + > static int imx93_clocks_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -264,14 +278,17 @@ static int imx93_clocks_probe(struct platform_device *pdev) > const struct imx93_clk_root *root; > const struct imx93_clk_ccgr *ccgr; > void __iomem *base, *anatop_base; > + int clks_num; > int i, ret; > > + clks_num = imx_clks_get_num(); > + > clk_hw_data = devm_kzalloc(dev, struct_size(clk_hw_data, hws, > - IMX93_CLK_END), GFP_KERNEL); > + clks_num), GFP_KERNEL); > if (!clk_hw_data) > return -ENOMEM; > > - clk_hw_data->num = IMX93_CLK_END; > + clk_hw_data->num = clks_num; Why so complicated code instead of pre-processor define or array size? Best regards, Krzysztof