From patchwork Fri Aug 20 11:15:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chun-Jie Chen X-Patchwork-Id: 12449119 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5A17C4338F for ; Fri, 20 Aug 2021 11:39:54 +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 8EB2061037 for ; Fri, 20 Aug 2021 11:39:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8EB2061037 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hT8oaUfQEyOQnOmvKJLZP0j4ybND9dTV0DDZOxns+lo=; b=eNfYEhv+dVzBhM 5W2XDwKT6c2BxZx4PAhbmD0lKZif6lYvJzcPeJaMsckp0MZIb/ABfS8tOLgMAYo8wu9p5yH2pdqpa xUz/KVfCcHKUJESVG/UmBVQY+8Qj1x21tYCV1apkdXX/5JTJ3+rJFkwWuJOgl9H72iFvYR6Y9khaT ZEDZqKtO776Y26A8T239A/srXKMkG1SWQyqc5SohDUg/SqNZJeZ25+ZduEEA+vRDUnYFus2gelb9A h2gMbB8FkyaADPLzRGplVTF576aC1lgNAiRam7KA24sKZ2h2Tc2ynZo/zqdu8zyjJ53NTj5KiXuMg NKoG8bwzkQaMuA48eRcA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mH2px-00AuXL-1Q; Fri, 20 Aug 2021 11:37:25 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mH2XG-00AmSx-0v; Fri, 20 Aug 2021 11:18:09 +0000 X-UUID: 42cc415d11cd40fd96453a5865718695-20210820 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=VZPLl5pijE8gQohFsPtne8Ch5Ykj5Exp1nC1H2fEnSY=; b=sshUalXfU/ey4hX+Y7XwyY2Jw+YrfxrcNnPs2se8DbnMqh3mwOd72Al0uWsmtgdLqBS4izGZpVJlTUVeV+bh+VkZZn6qhnVGnOVglEqxhVGDJBkReJNPwpBu0Zw475xdSRgi+Z41+ivtv6LKfwBhyI86JFAjRMpJ190aLeTIkZk=; X-UUID: 42cc415d11cd40fd96453a5865718695-20210820 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 525629596; Fri, 20 Aug 2021 04:18:02 -0700 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 20 Aug 2021 04:18:00 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 20 Aug 2021 19:17:58 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 20 Aug 2021 19:17:58 +0800 From: Chun-Jie Chen To: Matthias Brugger , Stephen Boyd , Nicolas Boichat , Rob Herring CC: , , , , , , , Chun-Jie Chen Subject: [v2 24/24] clk: mediatek: Add MT8195 apusys clock support Date: Fri, 20 Aug 2021 19:15:04 +0800 Message-ID: <20210820111504.350-25-chun-jie.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210820111504.350-1-chun-jie.chen@mediatek.com> References: <20210820111504.350-1-chun-jie.chen@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-20210820_041806_181312_3B3BF8B9 X-CRM114-Status: GOOD ( 17.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add MT8195 apusys clock controller which provides PLLs in AI processor Unit. Signed-off-by: Chun-Jie Chen Reviewed-by: Chen-Yu Tsai --- drivers/clk/mediatek/Makefile | 2 +- drivers/clk/mediatek/clk-mt8195-apusys_pll.c | 92 ++++++++++++++++++++ 2 files changed, 93 insertions(+), 1 deletion(-) create mode 100644 drivers/clk/mediatek/clk-mt8195-apusys_pll.c diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile index 4288ad39ba41..e10b1d6b0cf4 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -83,6 +83,6 @@ obj-$(CONFIG_COMMON_CLK_MT8192_VENCSYS) += clk-mt8192-venc.o obj-$(CONFIG_COMMON_CLK_MT8195) += clk-mt8195-apmixedsys.o clk-mt8195-topckgen.o clk-mt8195-peri_ao.o clk-mt8195-infra_ao.o clk-mt8195-cam.o \ clk-mt8195-ccu.o clk-mt8195-img.o clk-mt8195-ipe.o clk-mt8195-mfg.o clk-mt8195-scp_adsp.o \ clk-mt8195-vdec.o clk-mt8195-vdo0.o clk-mt8195-vdo1.o clk-mt8195-venc.o clk-mt8195-vpp0.o \ - clk-mt8195-vpp1.o clk-mt8195-wpe.o clk-mt8195-imp_iic_wrap.o + clk-mt8195-vpp1.o clk-mt8195-wpe.o clk-mt8195-imp_iic_wrap.o clk-mt8195-apusys_pll.o obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o diff --git a/drivers/clk/mediatek/clk-mt8195-apusys_pll.c b/drivers/clk/mediatek/clk-mt8195-apusys_pll.c new file mode 100644 index 000000000000..6868c9ff3e18 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8195-apusys_pll.c @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +// +// Copyright (c) 2021 MediaTek Inc. +// Author: Chun-Jie Chen + +#include "clk-mtk.h" + +#include +#include +#include + +#define MT8195_PLL_FMAX (3800UL * MHZ) +#define MT8195_PLL_FMIN (1500UL * MHZ) +#define MT8195_INTEGER_BITS (8) +#define MT8195_PCW_BITS (22) +#define MT8195_POSDIV_SHIFT (24) +#define MT8195_PLL_EN_BIT (0) +#define MT8195_PCW_SHIFT (0) + +/* + * The "en_reg" and "pcw_chg_reg" fields are standard offset register compared + * with "reg" field, so set zero to imply it. + * No tuner control in apu pll, so set "tuner_XXX" as zero to imply it. + * No rst or post divider enable in apu pll, so set "rst_bar_mask" and "en_mask" + * as zero to imply it. + */ +#define PLL(_id, _name, _reg, _pwr_reg, _pd_reg, _pcw_reg) { \ + .id = _id, \ + .name = _name, \ + .reg = _reg, \ + .pwr_reg = _pwr_reg, \ + .en_mask = 0, \ + .flags = 0, \ + .rst_bar_mask = 0, \ + .fmax = MT8195_PLL_FMAX, \ + .fmin = MT8195_PLL_FMIN, \ + .pcwbits = MT8195_PCW_BITS, \ + .pcwibits = MT8195_INTEGER_BITS, \ + .pd_reg = _pd_reg, \ + .pd_shift = MT8195_POSDIV_SHIFT, \ + .tuner_reg = 0, \ + .tuner_en_reg = 0, \ + .tuner_en_bit = 0, \ + .pcw_reg = _pcw_reg, \ + .pcw_shift = MT8195_PCW_SHIFT, \ + .pcw_chg_reg = 0, \ + .en_reg = 0, \ + .pll_en_bit = MT8195_PLL_EN_BIT, \ + } + +static const struct mtk_pll_data apusys_plls[] = { + PLL(CLK_APUSYS_PLL_APUPLL, "apusys_pll_apupll", 0x008, 0x014, 0x00c, 0x00c), + PLL(CLK_APUSYS_PLL_NPUPLL, "apusys_pll_npupll", 0x018, 0x024, 0x01c, 0x01c), + PLL(CLK_APUSYS_PLL_APUPLL1, "apusys_pll_apupll1", 0x028, 0x034, 0x02c, 0x02c), + PLL(CLK_APUSYS_PLL_APUPLL2, "apusys_pll_apupll2", 0x038, 0x044, 0x03c, 0x03c), +}; + +static int clk_mt8195_apusys_pll_probe(struct platform_device *pdev) +{ + struct clk_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + int r; + + clk_data = mtk_alloc_clk_data(CLK_APUSYS_PLL_NR_CLK); + if (!clk_data) + return -ENOMEM; + + mtk_clk_register_plls(node, apusys_plls, ARRAY_SIZE(apusys_plls), clk_data); + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + goto free_apusys_pll_data; + + return r; + +free_apusys_pll_data: + mtk_free_clk_data(clk_data); + return r; +} + +static const struct of_device_id of_match_clk_mt8195_apusys_pll[] = { + { .compatible = "mediatek,mt8195-apusys_pll", }, + {} +}; + +static struct platform_driver clk_mt8195_apusys_pll_drv = { + .probe = clk_mt8195_apusys_pll_probe, + .driver = { + .name = "clk-mt8195-apusys_pll", + .of_match_table = of_match_clk_mt8195_apusys_pll, + }, +}; +builtin_platform_driver(clk_mt8195_apusys_pll_drv);