From patchwork Tue Aug 22 02:09:15 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?WmhpIE1hbyAo5q+b5pm6KQ==?= X-Patchwork-Id: 9914103 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0DB03603FF for ; Tue, 22 Aug 2017 02:11:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E44FA2885F for ; Tue, 22 Aug 2017 02:11:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D868628847; Tue, 22 Aug 2017 02:11:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, RCVD_IN_DNSWL_LOW, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 613332884F for ; Tue, 22 Aug 2017 02:11:05 +0000 (UTC) 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=+PPmUtFmskNeaJt+M00iUarB79Nok9JKxT34seGRqwM=; b=mWWmVEIqfFvA7R 5OiuMPvmMpsoUb4kE7F1tPMmbQVmR+XJLJkbKCHLo/C8zUrW4B/Hgwo28go6F4FWyinnCdl5Il9S4 X9NwNfCV+XrL7aw0ZkCFukA9VXZS1jGhnuECuhOXvdTet/l02v0L3zWVXAYrxaEACId7Th/2kjoe6 msnprmPa8zqC/74zatiHwE29WotmjCiQVhQMNqFHy06GxNBb4IXM7MJ7io60lbz+q+4NsT/tW/avY bB1cZJuwDjA8++U8rBt+t0cHlMmLWjGXhEORIwkDSYU0x7CMSeb+brqcnpFaGjFD/IQbEpVfKzSNl fw6StdUb96VreqS7i05Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1djyeW-0000Az-QE; Tue, 22 Aug 2017 02:10:48 +0000 Received: from [210.61.82.184] (helo=mailgw02.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1djydh-0006Na-Kr; Tue, 22 Aug 2017 02:10:04 +0000 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1550237241; Tue, 22 Aug 2017 10:09:29 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 22 Aug 2017 10:09:20 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Tue, 22 Aug 2017 10:09:19 +0800 From: Zhi Mao To: , Thierry Reding , Rob Herring , Mark Rutland , Matthias Brugger , Subject: [PATCH v4 1/1] pwm: mediatek: add MT2712/MT7622 support Date: Tue, 22 Aug 2017 10:09:15 +0800 Message-ID: <1503367755-6519-2-git-send-email-zhi.mao@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1503367755-6519-1-git-send-email-zhi.mao@mediatek.com> References: <1503367755-6519-1-git-send-email-zhi.mao@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170821_190958_317113_BA18F095 X-CRM114-Status: GOOD ( 18.86 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhenbao.liu@mediatek.com, devicetree@vger.kernel.org, srv_heupstream@mediatek.com, sean.wang@mediatek.com, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, zhi.mao@mediatek.com, yt.shen@mediatek.com, yingjoe.chen@mediatek.com, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add support to MT2712 and MT7622. Due to register offset address of pwm7 for MT2712 is not fixed 0x40, add mtk_pwm_reg_offset array for pwm register offset. Signed-off-by: Zhi Mao --- drivers/pwm/pwm-mediatek.c | 51 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 42 insertions(+), 9 deletions(-) diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c index 1d78ab1..ccd86e7 100644 --- a/drivers/pwm/pwm-mediatek.c +++ b/drivers/pwm/pwm-mediatek.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -40,11 +41,19 @@ enum { MTK_CLK_PWM3, MTK_CLK_PWM4, MTK_CLK_PWM5, + MTK_CLK_PWM6, + MTK_CLK_PWM7, + MTK_CLK_PWM8, MTK_CLK_MAX, }; -static const char * const mtk_pwm_clk_name[] = { - "main", "top", "pwm1", "pwm2", "pwm3", "pwm4", "pwm5" +static const char * const mtk_pwm_clk_name[MTK_CLK_MAX] = { + "main", "top", "pwm1", "pwm2", "pwm3", "pwm4", "pwm5", "pwm6", "pwm7", + "pwm8" +}; + +struct mtk_pwm_platform_data { + unsigned int num_pwms; }; /** @@ -57,6 +66,11 @@ struct mtk_pwm_chip { struct pwm_chip chip; void __iomem *regs; struct clk *clks[MTK_CLK_MAX]; + const struct mtk_pwm_platform_data *data; +}; + +static const unsigned int mtk_pwm_reg_offset[] = { + 0x0010, 0x0050, 0x0090, 0x00d0, 0x0110, 0x0150, 0x0190, 0x0220 }; static inline struct mtk_pwm_chip *to_mtk_pwm_chip(struct pwm_chip *chip) @@ -103,14 +117,14 @@ static void mtk_pwm_clk_disable(struct pwm_chip *chip, struct pwm_device *pwm) static inline u32 mtk_pwm_readl(struct mtk_pwm_chip *chip, unsigned int num, unsigned int offset) { - return readl(chip->regs + 0x10 + (num * 0x40) + offset); + return readl(chip->regs + mtk_pwm_reg_offset[num] + offset); } static inline void mtk_pwm_writel(struct mtk_pwm_chip *chip, unsigned int num, unsigned int offset, u32 value) { - writel(value, chip->regs + 0x10 + (num * 0x40) + offset); + writel(value, chip->regs + mtk_pwm_reg_offset[num] + offset); } static int mtk_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, @@ -194,15 +208,20 @@ static int mtk_pwm_probe(struct platform_device *pdev) if (!pc) return -ENOMEM; + pc->data = of_device_get_match_data(&pdev->dev); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); pc->regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(pc->regs)) return PTR_ERR(pc->regs); - for (i = 0; i < MTK_CLK_MAX; i++) { + for (i = 0; i < pc->data->num_pwms + 2; i++) { pc->clks[i] = devm_clk_get(&pdev->dev, mtk_pwm_clk_name[i]); - if (IS_ERR(pc->clks[i])) + if (IS_ERR(pc->clks[i])) { + dev_err(&pdev->dev, "clock: %s fail: %ld\n", + mtk_pwm_clk_name[i], PTR_ERR(pc->clks[i])); return PTR_ERR(pc->clks[i]); + } } platform_set_drvdata(pdev, pc); @@ -210,7 +229,7 @@ static int mtk_pwm_probe(struct platform_device *pdev) pc->chip.dev = &pdev->dev; pc->chip.ops = &mtk_pwm_ops; pc->chip.base = -1; - pc->chip.npwm = 5; + pc->chip.npwm = pc->data->num_pwms; ret = pwmchip_add(&pc->chip); if (ret < 0) { @@ -228,9 +247,23 @@ static int mtk_pwm_remove(struct platform_device *pdev) return pwmchip_remove(&pc->chip); } +static const struct mtk_pwm_platform_data mt2712_pwm_data = { + .num_pwms = 8, +}; + +static const struct mtk_pwm_platform_data mt7622_pwm_data = { + .num_pwms = 6, +}; + +static const struct mtk_pwm_platform_data mt7623_pwm_data = { + .num_pwms = 5, +}; + static const struct of_device_id mtk_pwm_of_match[] = { - { .compatible = "mediatek,mt7623-pwm" }, - { } + { .compatible = "mediatek,mt2712-pwm", .data = &mt2712_pwm_data }, + { .compatible = "mediatek,mt7622-pwm", .data = &mt7622_pwm_data }, + { .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data }, + { }, }; MODULE_DEVICE_TABLE(of, mtk_pwm_of_match);