From patchwork Fri Dec 6 07:40:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jian Hu X-Patchwork-Id: 11275703 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 55CEE14BD for ; Fri, 6 Dec 2019 07:42:11 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2C47224659 for ; Fri, 6 Dec 2019 07:42:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="WTba5x4q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C47224659 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amlogic.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bNMjmG02I6Fez8sUXOyccCaJyixSZr8OLEGoeXq3vBE=; b=WTba5x4q76GBVm PAqx/vWXPm3bChaDQIwu5eMahNK+ICL+MxALZnKkxsVAV0L4ln5IrnqemUdVKPwxHLsI6uuboSOYR rDf1QINdRK0SrCjMEqEWkhYLLY3b1ogaUW0nKVuKV2ABwBcvl1LbN6nNlUlWabTZJYD6LyB2okd39 nCkS70y7PsG2ZnYS0QBAHns9ALzfxwIhWWiMb5yiwBBz4DiOUCa/8evTdw2RFhvVEztBEQLXI1xGB u85qglojpjcB46ZrfB5QIi4fHliXkfSPuXWeapBGeaehPR6lH09OCpO7l7hpoztF3BYta/Kb6iVqV CYtUT3t878vU0c0Ga6qg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1id8Fc-0002Zu-Hp; Fri, 06 Dec 2019 07:42:08 +0000 Received: from mail-sz.amlogic.com ([211.162.65.117]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1id8Ep-0001eX-TW; Fri, 06 Dec 2019 07:41:21 +0000 Received: from droid15-sz.amlogic.com (10.28.8.25) by mail-sz.amlogic.com (10.28.11.5) with Microsoft SMTP Server id 15.1.1591.10; Fri, 6 Dec 2019 15:41:36 +0800 From: Jian Hu To: Jerome Brunet , Neil Armstrong Subject: [PATCH v4 3/6] clk: meson: eeclk: refactor eeclk common driver to support A1 Date: Fri, 6 Dec 2019 15:40:49 +0800 Message-ID: <20191206074052.15557-4-jian.hu@amlogic.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191206074052.15557-1-jian.hu@amlogic.com> References: <20191206074052.15557-1-jian.hu@amlogic.com> MIME-Version: 1.0 X-Originating-IP: [10.28.8.25] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191205_234119_958428_93468453 X-CRM114-Status: GOOD ( 10.48 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Herring , Victor Wan , Jianxin Pan , Martin Blumenstingl , Kevin Hilman , Michael Turquette , linux-kernel@vger.kernel.org, Stephen Boyd , Jian Hu , linux-arm-kernel@lists.infradead.org, Qiufang Dai , linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, Chandle Zou Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Introduce a common probe function for A1 series, the way to get regmap is different between A1 series and the previous series. The register region is only for one clock driver, the function of meson_eeclkc_probe is not fit for A1, So it is necessary to introduce a new function. Signed-off-by: Jian Hu --- drivers/clk/meson/meson-eeclk.c | 59 +++++++++++++++++++++++++++------ drivers/clk/meson/meson-eeclk.h | 1 + 2 files changed, 50 insertions(+), 10 deletions(-) diff --git a/drivers/clk/meson/meson-eeclk.c b/drivers/clk/meson/meson-eeclk.c index a7cb1e7aedc4..12ceb1caabd8 100644 --- a/drivers/clk/meson/meson-eeclk.c +++ b/drivers/clk/meson/meson-eeclk.c @@ -13,25 +13,37 @@ #include "clk-regmap.h" #include "meson-eeclk.h" -int meson_eeclkc_probe(struct platform_device *pdev) +static struct regmap_config clkc_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + +static struct regmap *meson_regmap_resource(struct platform_device *pdev) +{ + struct resource *res; + void __iomem *base; + struct device *dev = &pdev->dev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + base = devm_ioremap_resource(dev, res); + if (IS_ERR(base)) + return ERR_CAST(base); + + return devm_regmap_init_mmio(dev, base, &clkc_regmap_config); +} + +static int meson_common_probe(struct platform_device *pdev, struct regmap *map) { const struct meson_eeclkc_data *data; struct device *dev = &pdev->dev; - struct regmap *map; int ret, i; data = of_device_get_match_data(dev); if (!data) return -EINVAL; - /* Get the hhi system controller node */ - map = syscon_node_to_regmap(of_get_parent(dev->of_node)); - if (IS_ERR(map)) { - dev_err(dev, - "failed to get HHI regmap\n"); - return PTR_ERR(map); - } - if (data->init_count) regmap_multi_reg_write(map, data->init_regs, data->init_count); @@ -54,3 +66,30 @@ int meson_eeclkc_probe(struct platform_device *pdev) return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, data->hw_onecell_data); } + +int meson_eeclkc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *map; + + /* Get the hhi system controller node */ + map = syscon_node_to_regmap(of_get_parent(dev->of_node)); + if (IS_ERR(map)) { + dev_err(dev, + "failed to get HHI regmap\n"); + return PTR_ERR(map); + } + + return meson_common_probe(pdev, map); +} + +int meson_clkc_probe(struct platform_device *pdev) +{ + struct regmap *map; + + map = meson_regmap_resource(pdev); + if (IS_ERR(map)) + return PTR_ERR(map); + + return meson_common_probe(pdev, map); +} diff --git a/drivers/clk/meson/meson-eeclk.h b/drivers/clk/meson/meson-eeclk.h index 77316207bde1..a2e9ab3a4f6b 100644 --- a/drivers/clk/meson/meson-eeclk.h +++ b/drivers/clk/meson/meson-eeclk.h @@ -21,5 +21,6 @@ struct meson_eeclkc_data { }; int meson_eeclkc_probe(struct platform_device *pdev); +int meson_clkc_probe(struct platform_device *pdev); #endif /* __MESON_CLKC_H */