From patchwork Tue Apr 27 10:33:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taniya Das X-Patchwork-Id: 428031 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 69545C43470 for ; Tue, 27 Apr 2021 10:35:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39A8061026 for ; Tue, 27 Apr 2021 10:35:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238041AbhD0Kf5 (ORCPT ); Tue, 27 Apr 2021 06:35:57 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:41699 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239180AbhD0KfQ (ORCPT ); Tue, 27 Apr 2021 06:35:16 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1619519673; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=nC4C2IB5erzBJVqHDdraduo6HP21TniBpJNuGOb1cIQ=; b=hof4wBmwcHgnhVhfdTxnuJAoX5rsMHxElf/Tynjl+8OLR6g8yEIQA++GLw8J1nBCoh6aqpVl hlsc+nLH+BVrRaPAEBLquWi/CrDmUOuRVvv1/E6W748V4rykV9+sAkb0F7FmzFmiCAMzSZlm wrULTjtTTmh4IHBvKSjVRlY+vcc= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n02.prod.us-west-2.postgun.com with SMTP id 6087e898215b831afb430e8e (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 27 Apr 2021 10:34:00 GMT Sender: tdas=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id BEEE8C43149; Tue, 27 Apr 2021 10:33:59 +0000 (UTC) Received: from tdas-linux.qualcomm.com (unknown [202.46.22.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tdas) by smtp.codeaurora.org (Postfix) with ESMTPSA id 10C13C43217; Tue, 27 Apr 2021 10:33:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 10C13C43217 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=tdas@codeaurora.org From: Taniya Das To: Stephen Boyd , =?utf-8?q?Michael_Turquette_=C2=A0?= Cc: Rajendra Nayak , linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, robh@kernel.org, robh+dt@kernel.org, Taniya Das Subject: [PATCH v2 6/6] clk: qcom: Add video clock controller driver for SC7280 Date: Tue, 27 Apr 2021 16:03:10 +0530 Message-Id: <1619519590-3019-7-git-send-email-tdas@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1619519590-3019-1-git-send-email-tdas@codeaurora.org> References: <1619519590-3019-1-git-send-email-tdas@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add support for the video clock controller found on SC7280 based devices. This would allow video drivers to probe and control their clocks. Signed-off-by: Taniya Das --- drivers/clk/qcom/Kconfig | 8 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/videocc-sc7280.c | 372 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 381 insertions(+) create mode 100644 drivers/clk/qcom/videocc-sc7280.c diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index 13fb381..ad85e6d 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -403,6 +403,14 @@ config SC_VIDEOCC_7180 Say Y if you want to support video devices and functionality such as video encode and decode. +config SC_VIDEOCC_7280 + tristate "SC7280 Video Clock Controller" + select SC_GCC_7280 + help + Support for the video clock controller on SC7280 devices. + Say Y if you want to support video devices and functionality such as + video encode and decode. + config SDM_CAMCC_845 tristate "SDM845 Camera Clock Controller" select SDM_GCC_845 diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index c84a31d..d87c2ed 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_SC_GPUCC_7280) += gpucc-sc7280.o obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o obj-$(CONFIG_SC_MSS_7180) += mss-sc7180.o obj-$(CONFIG_SC_VIDEOCC_7180) += videocc-sc7180.o +obj-$(CONFIG_SC_VIDEOCC_7280) += videocc-sc7280.o obj-$(CONFIG_SDM_CAMCC_845) += camcc-sdm845.o obj-$(CONFIG_SDM_DISPCC_845) += dispcc-sdm845.o obj-$(CONFIG_SDM_GCC_660) += gcc-sdm660.o diff --git a/drivers/clk/qcom/videocc-sc7280.c b/drivers/clk/qcom/videocc-sc7280.c new file mode 100644 index 0000000..3387154 --- /dev/null +++ b/drivers/clk/qcom/videocc-sc7280.c @@ -0,0 +1,372 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include + +#include + +#include "clk-alpha-pll.h" +#include "clk-branch.h" +#include "clk-rcg.h" +#include "common.h" +#include "reset.h" +#include "gdsc.h" + +enum { + P_BI_TCXO, + P_SLEEP_CLK, + P_VIDEO_PLL0_OUT_EVEN, +}; + +static struct pll_vco lucid_vco[] = { + { 249600000, 2000000000, 0 }, +}; + +/* 400MHz Configuration */ +static const struct alpha_pll_config video_pll0_config = { + .l = 0x14, + .alpha = 0xD555, + .config_ctl_val = 0x20485699, + .config_ctl_hi_val = 0x00002261, + .config_ctl_hi1_val = 0x329A299C, + .user_ctl_val = 0x00000001, + .user_ctl_hi_val = 0x00000805, + .user_ctl_hi1_val = 0x00000000, +}; + +static struct clk_alpha_pll video_pll0 = { + .offset = 0x0, + .vco_table = lucid_vco, + .num_vco = ARRAY_SIZE(lucid_vco), + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID], + .clkr = { + .hw.init = &(struct clk_init_data){ + .name = "video_pll0", + .parent_data = &(const struct clk_parent_data){ + .fw_name = "bi_tcxo", + }, + .num_parents = 1, + .ops = &clk_alpha_pll_lucid_ops, + }, + }, +}; + +static const struct parent_map video_cc_parent_map_0[] = { + { P_BI_TCXO, 0 }, + { P_VIDEO_PLL0_OUT_EVEN, 3 }, +}; + +static const struct clk_parent_data video_cc_parent_data_0[] = { + { .fw_name = "bi_tcxo" }, + { .hw = &video_pll0.clkr.hw }, +}; + +static const struct parent_map video_cc_parent_map_1[] = { + { P_SLEEP_CLK, 0 }, +}; + +static const struct clk_parent_data video_cc_parent_data_1[] = { + { .fw_name = "sleep_clk" }, +}; + +static const struct parent_map video_cc_parent_map_2[] = { + { P_BI_TCXO, 0 }, +}; + +static const struct clk_parent_data video_cc_parent_data_2_ao[] = { + { .fw_name = "bi_tcxo_ao" }, +}; + +static const struct freq_tbl ftbl_video_cc_iris_clk_src[] = { + F(133333333, P_VIDEO_PLL0_OUT_EVEN, 3, 0, 0), + F(240000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0), + F(335000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0), + F(424000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0), + F(460000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0), + { } +}; + +static struct clk_rcg2 video_cc_iris_clk_src = { + .cmd_rcgr = 0x1000, + .mnd_width = 0, + .hid_width = 5, + .parent_map = video_cc_parent_map_0, + .freq_tbl = ftbl_video_cc_iris_clk_src, + .clkr.hw.init = &(struct clk_init_data){ + .name = "video_cc_iris_clk_src", + .parent_data = video_cc_parent_data_0, + .num_parents = ARRAY_SIZE(video_cc_parent_data_0), + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_rcg2_shared_ops, + }, +}; + +static const struct freq_tbl ftbl_video_cc_sleep_clk_src[] = { + F(32000, P_SLEEP_CLK, 1, 0, 0), + { } +}; + +static struct clk_rcg2 video_cc_sleep_clk_src = { + .cmd_rcgr = 0x701c, + .mnd_width = 0, + .hid_width = 5, + .parent_map = video_cc_parent_map_1, + .freq_tbl = ftbl_video_cc_sleep_clk_src, + .clkr.hw.init = &(struct clk_init_data){ + .name = "video_cc_sleep_clk_src", + .parent_data = video_cc_parent_data_1, + .num_parents = ARRAY_SIZE(video_cc_parent_data_1), + .ops = &clk_rcg2_ops, + }, +}; + +static const struct freq_tbl ftbl_video_cc_xo_clk_src[] = { + F(19200000, P_BI_TCXO, 1, 0, 0), + { } +}; + +static struct clk_rcg2 video_cc_xo_clk_src = { + .cmd_rcgr = 0x7000, + .mnd_width = 0, + .hid_width = 5, + .parent_map = video_cc_parent_map_2, + .freq_tbl = ftbl_video_cc_xo_clk_src, + .clkr.hw.init = &(struct clk_init_data){ + .name = "video_cc_xo_clk_src", + .parent_data = video_cc_parent_data_2_ao, + .num_parents = ARRAY_SIZE(video_cc_parent_data_2_ao), + .ops = &clk_rcg2_ops, + }, +}; + +static struct clk_branch video_cc_iris_ahb_clk = { + .halt_reg = 0x5004, + .halt_check = BRANCH_HALT_VOTED, + .clkr = { + .enable_reg = 0x5004, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_iris_ahb_clk", + .parent_hws = (const struct clk_hw*[]){ + &video_cc_iris_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch video_cc_mvs0_axi_clk = { + .halt_reg = 0x800c, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x800c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_mvs0_axi_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch video_cc_mvs0_core_clk = { + .halt_reg = 0x3010, + .halt_check = BRANCH_HALT_VOTED, + .hwcg_reg = 0x3010, + .hwcg_bit = 1, + .clkr = { + .enable_reg = 0x3010, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_mvs0_core_clk", + .parent_hws = (const struct clk_hw*[]){ + &video_cc_iris_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch video_cc_mvsc_core_clk = { + .halt_reg = 0x2014, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x2014, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_mvsc_core_clk", + .parent_hws = (const struct clk_hw*[]){ + &video_cc_iris_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch video_cc_mvsc_ctl_axi_clk = { + .halt_reg = 0x8004, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x8004, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_mvsc_ctl_axi_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch video_cc_sleep_clk = { + .halt_reg = 0x7034, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x7034, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_sleep_clk", + .parent_hws = (const struct clk_hw*[]){ + &video_cc_sleep_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch video_cc_venus_ahb_clk = { + .halt_reg = 0x801c, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x801c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_venus_ahb_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch video_cc_xo_clk = { + .halt_reg = 0x7018, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x7018, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "video_cc_xo_clk", + .parent_hws = (const struct clk_hw*[]){ + &video_cc_xo_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct gdsc mvs0_gdsc = { + .gdscr = 0x3004, + .pd = { + .name = "mvs0_gdsc", + }, + .pwrsts = PWRSTS_OFF_ON, + .flags = HW_CTRL | RETAIN_FF_ENABLE, +}; + +static struct gdsc mvsc_gdsc = { + .gdscr = 0x2004, + .pd = { + .name = "mvsc_gdsc", + }, + .flags = RETAIN_FF_ENABLE, + .pwrsts = PWRSTS_OFF_ON, +}; + +static struct clk_regmap *video_cc_sc7280_clocks[] = { + [VIDEO_CC_IRIS_AHB_CLK] = &video_cc_iris_ahb_clk.clkr, + [VIDEO_CC_IRIS_CLK_SRC] = &video_cc_iris_clk_src.clkr, + [VIDEO_CC_MVS0_AXI_CLK] = &video_cc_mvs0_axi_clk.clkr, + [VIDEO_CC_MVS0_CORE_CLK] = &video_cc_mvs0_core_clk.clkr, + [VIDEO_CC_MVSC_CORE_CLK] = &video_cc_mvsc_core_clk.clkr, + [VIDEO_CC_MVSC_CTL_AXI_CLK] = &video_cc_mvsc_ctl_axi_clk.clkr, + [VIDEO_CC_SLEEP_CLK] = &video_cc_sleep_clk.clkr, + [VIDEO_CC_SLEEP_CLK_SRC] = &video_cc_sleep_clk_src.clkr, + [VIDEO_CC_VENUS_AHB_CLK] = &video_cc_venus_ahb_clk.clkr, + [VIDEO_CC_XO_CLK] = &video_cc_xo_clk.clkr, + [VIDEO_CC_XO_CLK_SRC] = &video_cc_xo_clk_src.clkr, + [VIDEO_PLL0] = &video_pll0.clkr, +}; + +static struct gdsc *video_cc_sc7280_gdscs[] = { + [MVS0_GDSC] = &mvs0_gdsc, + [MVSC_GDSC] = &mvsc_gdsc, +}; + +static const struct regmap_config video_cc_sc7280_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = 0xb000, + .fast_io = true, +}; + +static const struct qcom_cc_desc video_cc_sc7280_desc = { + .config = &video_cc_sc7280_regmap_config, + .clks = video_cc_sc7280_clocks, + .num_clks = ARRAY_SIZE(video_cc_sc7280_clocks), + .gdscs = video_cc_sc7280_gdscs, + .num_gdscs = ARRAY_SIZE(video_cc_sc7280_gdscs), +}; + +static const struct of_device_id video_cc_sc7280_match_table[] = { + { .compatible = "qcom,sc7280-videocc" }, + { } +}; +MODULE_DEVICE_TABLE(of, video_cc_sc7280_match_table); + +static int video_cc_sc7280_probe(struct platform_device *pdev) +{ + struct regmap *regmap; + + regmap = qcom_cc_map(pdev, &video_cc_sc7280_desc); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config); + + return qcom_cc_really_probe(pdev, &video_cc_sc7280_desc, regmap); +} + +static struct platform_driver video_cc_sc7280_driver = { + .probe = video_cc_sc7280_probe, + .driver = { + .name = "video_cc-sc7280", + .of_match_table = video_cc_sc7280_match_table, + }, +}; + +static int __init video_cc_sc7280_init(void) +{ + return platform_driver_register(&video_cc_sc7280_driver); +} +subsys_initcall(video_cc_sc7280_init); + +static void __exit video_cc_sc7280_exit(void) +{ + platform_driver_unregister(&video_cc_sc7280_driver); +} +module_exit(video_cc_sc7280_exit); + +MODULE_DESCRIPTION("QTI VIDEO_CC sc7280 Driver"); +MODULE_LICENSE("GPL v2");