From patchwork Tue Sep 14 02:16:33 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: 12491303 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham 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 8F976C43219 for ; Tue, 14 Sep 2021 02:18:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 76C1A61155 for ; Tue, 14 Sep 2021 02:18:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238623AbhINCTh (ORCPT ); Mon, 13 Sep 2021 22:19:37 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:52400 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S238631AbhINCTH (ORCPT ); Mon, 13 Sep 2021 22:19:07 -0400 X-UUID: c8607808247b4488a4eaf985649cad4c-20210914 X-UUID: c8607808247b4488a4eaf985649cad4c-20210914 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1419661368; Tue, 14 Sep 2021 10:17:48 +0800 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; Tue, 14 Sep 2021 10:17:46 +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; Tue, 14 Sep 2021 10:17:46 +0800 From: Chun-Jie Chen To: Matthias Brugger , Stephen Boyd , Nicolas Boichat , Rob Herring CC: , , , , , , , Chun-Jie Chen Subject: [v3 24/24] clk: mediatek: Add MT8195 apusys clock support Date: Tue, 14 Sep 2021 10:16:33 +0800 Message-ID: <20210914021633.26377-25-chun-jie.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210914021633.26377-1-chun-jie.chen@mediatek.com> References: <20210914021633.26377-1-chun-jie.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.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 | 3 +- drivers/clk/mediatek/clk-mt8195-apusys_pll.c | 92 ++++++++++++++++++++ 2 files changed, 94 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 3c602af49c0a..dc96038a0155 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -86,6 +86,7 @@ obj-$(CONFIG_COMMON_CLK_MT8195) += clk-mt8195-apmixedsys.o clk-mt8195-topckgen.o clk-mt8195-ipe.o clk-mt8195-mfg.o clk-mt8195-scp_adsp.o \ clk-mt8195-vdec.o clk-mt8195-vdo0.o clk-mt8195-vdo1.o \ clk-mt8195-venc.o clk-mt8195-vpp0.o clk-mt8195-vpp1.o \ - clk-mt8195-wpe.o clk-mt8195-imp_iic_wrap.o + clk-mt8195-wpe.o clk-mt8195-imp_iic_wrap.o \ + clk-mt8195-apusys_pll.o obj-$(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..f1c84186346e --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8195-apusys_pll.c @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// 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);