From patchwork Thu Oct 31 12:21:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taniya Das X-Patchwork-Id: 11221125 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 821EB112B for ; Thu, 31 Oct 2019 12:22:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4B47C208C0 for ; Thu, 31 Oct 2019 12:22:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="EHvF0TnA"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="Tovr/0Ev" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726916AbfJaMV6 (ORCPT ); Thu, 31 Oct 2019 08:21:58 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:38524 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726462AbfJaMV5 (ORCPT ); Thu, 31 Oct 2019 08:21:57 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 3F13560D4C; Thu, 31 Oct 2019 12:21:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1572524515; bh=vFnS9mvRiWXgSCTDx4qhsDonJLEGHBC8jvsioKFdK/E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EHvF0TnAX4uJT5nrtEVt9p8RPWpnLl38wiZYj7KeRURtrkamezQ8DfgFkkjb78kT/ ixZ3eYqji+fOK7EO6js7AjbJaYATtYSUwNh9ecwByz66AKrGHTq6rFUPp8mV4rTknI K4yWAvG5yvu7JjKwIyZV3B6rZpp5nWoKfBepwjdc= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 Received: from tdas-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tdas@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5AE9D60927; Thu, 31 Oct 2019 12:21:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1572524513; bh=vFnS9mvRiWXgSCTDx4qhsDonJLEGHBC8jvsioKFdK/E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Tovr/0EvlJhP7AYXHY5ZtGDqmRhlEVd49JI1FvlZBeJds/4K9vbdQPxhC6uSv8Bwx ry9uIfSU6Kj+Jj9xH4OD83J19NHQbBugidz0uEzQ+pCSBveROTVmQxSEvzA8gkB3ZX T+fTu7me9zUQvsNYVFvUm921l0QmzN2He9/hb9ug= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5AE9D60927 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=tdas@codeaurora.org From: Taniya Das To: Stephen Boyd , =?utf-8?q?Michael_Turquette_=C2=A0?= Cc: David Brown , Rajendra Nayak , linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Andy Gross , devicetree@vger.kernel.org, robh@kernel.org, robh+dt@kernel.org, Taniya Das Subject: [PATCH v1 4/7] clk: qcom: Add graphics clock controller driver for SC7180 Date: Thu, 31 Oct 2019 17:51:10 +0530 Message-Id: <1572524473-19344-5-git-send-email-tdas@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1572524473-19344-1-git-send-email-tdas@codeaurora.org> References: <1572524473-19344-1-git-send-email-tdas@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add support for the graphics clock controller found on SC7180 based devices. This would allow graphics 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/gpucc-sc7180.c | 274 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 283 insertions(+) create mode 100644 drivers/clk/qcom/gpucc-sc7180.c -- Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member of the Code Aurora Forum, hosted by the Linux Foundation. diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index 91706d8..c898e62 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -236,6 +236,14 @@ config SC_GCC_7180 Say Y if you want to use peripheral devices such as UART, SPI, I2C, USB, UFS, SDCC, etc. +config SC_GPUCC_7180 + tristate "SC7180 Graphics Clock Controller" + select SC_GCC_7180 + help + Support for the graphics clock controller on SC7180 devices. + Say Y if you want to support graphics controller devices and + functionality such as 3D graphics. + 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 6fb356a..b89a292 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o obj-$(CONFIG_QCS_GCC_404) += gcc-qcs404.o obj-$(CONFIG_QCS_TURING_404) += turingcc-qcs404.o obj-$(CONFIG_SC_GCC_7180) += gcc-sc7180.o +obj-$(CONFIG_SC_GPUCC_7180) += gpucc-sc7180.o obj-$(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/gpucc-sc7180.c b/drivers/clk/qcom/gpucc-sc7180.c new file mode 100644 index 0000000..0d893e6 --- /dev/null +++ b/drivers/clk/qcom/gpucc-sc7180.c @@ -0,0 +1,274 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2019, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "clk-alpha-pll.h" +#include "clk-branch.h" +#include "clk-rcg.h" +#include "clk-regmap.h" +#include "common.h" +#include "gdsc.h" + +#define CX_GMU_CBCR_SLEEP_MASK 0xF +#define CX_GMU_CBCR_SLEEP_SHIFT 4 +#define CX_GMU_CBCR_WAKE_MASK 0xF +#define CX_GMU_CBCR_WAKE_SHIFT 8 +#define CLK_DIS_WAIT_SHIFT 12 +#define CLK_DIS_WAIT_MASK (0xf << CLK_DIS_WAIT_SHIFT) + +enum { + P_BI_TCXO, + P_CORE_BI_PLL_TEST_SE, + P_GPLL0_OUT_MAIN, + P_GPLL0_OUT_MAIN_DIV, + P_GPU_CC_PLL1_OUT_EVEN, + P_GPU_CC_PLL1_OUT_MAIN, + P_GPU_CC_PLL1_OUT_ODD, +}; + +static struct pll_vco fabia_vco[] = { + { 249600000, 2000000000, 0 }, +}; + +static struct clk_alpha_pll gpu_cc_pll1 = { + .offset = 0x100, + .vco_table = fabia_vco, + .num_vco = ARRAY_SIZE(fabia_vco), + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA], + .clkr = { + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_pll1", + .parent_data = &(const struct clk_parent_data){ + .fw_name = "bi_tcxo", + .name = "bi_tcxo", + }, + .num_parents = 1, + .ops = &clk_alpha_pll_fabia_ops, + }, + }, +}; + +static const struct parent_map gpu_cc_parent_map_0[] = { + { P_BI_TCXO, 0 }, + { P_GPU_CC_PLL1_OUT_MAIN, 3 }, + { P_GPLL0_OUT_MAIN, 5 }, + { P_GPLL0_OUT_MAIN_DIV, 6 }, + { P_CORE_BI_PLL_TEST_SE, 7 }, +}; + +static const struct clk_parent_data gpu_cc_parent_data_0[] = { + { .fw_name = "bi_tcxo", .name = "bi_tcxo" }, + { .hw = &gpu_cc_pll1.clkr.hw }, + { .fw_name = "gcc_gpu_gpll0_clk_src", .name = "gcc_gpu_gpll0_clk_src" }, + { .fw_name = "gcc_gpu_gpll0_div_clk_src", + .name = "gcc_gpu_gpll0_div_clk_src" }, + { .fw_name = "core_bi_pll_test_se", .name = "core_bi_pll_test_se" }, +}; + +static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = { + F(19200000, P_BI_TCXO, 1, 0, 0), + F(200000000, P_GPLL0_OUT_MAIN_DIV, 1.5, 0, 0), + { } +}; + +static struct clk_rcg2 gpu_cc_gmu_clk_src = { + .cmd_rcgr = 0x1120, + .mnd_width = 0, + .hid_width = 5, + .parent_map = gpu_cc_parent_map_0, + .freq_tbl = ftbl_gpu_cc_gmu_clk_src, + .clkr.hw.init = &(struct clk_init_data){ + .name = "gpu_cc_gmu_clk_src", + .parent_data = gpu_cc_parent_data_0, + .num_parents = 5, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_rcg2_shared_ops, + }, +}; + +static struct clk_branch gpu_cc_crc_ahb_clk = { + .halt_reg = 0x107c, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x107c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_crc_ahb_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cx_gmu_clk = { + .halt_reg = 0x1098, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x1098, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cx_gmu_clk", + .parent_data = &(const struct clk_parent_data){ + .hw = &gpu_cc_gmu_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cx_snoc_dvm_clk = { + .halt_reg = 0x108c, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x108c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cx_snoc_dvm_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cxo_aon_clk = { + .halt_reg = 0x1004, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x1004, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cxo_aon_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cxo_clk = { + .halt_reg = 0x109c, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x109c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cxo_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct gdsc cx_gdsc = { + .gdscr = 0x106c, + .gds_hw_ctrl = 0x1540, + .pd = { + .name = "cx_gdsc", + }, + .pwrsts = PWRSTS_OFF_ON, + .flags = VOTABLE, +}; + +static struct gdsc *gpu_cc_sc7180_gdscs[] = { + [CX_GDSC] = &cx_gdsc, +}; + +static struct clk_regmap *gpu_cc_sc7180_clocks[] = { + [GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr, + [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr, + [GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr, + [GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr, + [GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr, + [GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr, + [GPU_CC_PLL1] = &gpu_cc_pll1.clkr, +}; + +static const struct regmap_config gpu_cc_sc7180_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = 0x8008, + .fast_io = true, +}; + +static const struct qcom_cc_desc gpu_cc_sc7180_desc = { + .config = &gpu_cc_sc7180_regmap_config, + .clks = gpu_cc_sc7180_clocks, + .num_clks = ARRAY_SIZE(gpu_cc_sc7180_clocks), + .gdscs = gpu_cc_sc7180_gdscs, + .num_gdscs = ARRAY_SIZE(gpu_cc_sc7180_gdscs), +}; + +static const struct of_device_id gpu_cc_sc7180_match_table[] = { + { .compatible = "qcom,sc7180-gpucc" }, + { } +}; +MODULE_DEVICE_TABLE(of, gpu_cc_sc7180_match_table); + +static int gpu_cc_sc7180_probe(struct platform_device *pdev) +{ + struct regmap *regmap; + struct alpha_pll_config gpu_cc_pll_config = {}; + unsigned int value, mask; + + regmap = qcom_cc_map(pdev, &gpu_cc_sc7180_desc); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + /* 360MHz Configuration */ + gpu_cc_pll_config.l = 0x12; + gpu_cc_pll_config.alpha = 0xC000; + gpu_cc_pll_config.config_ctl_val = 0x20485699; + gpu_cc_pll_config.config_ctl_hi_val = 0x00002067; + gpu_cc_pll_config.user_ctl_val = 0x00000001; + gpu_cc_pll_config.user_ctl_hi_val = 0x00004805; + gpu_cc_pll_config.test_ctl_hi_val = 0x40000000; + + clk_fabia_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll_config); + + /* Recommended WAKEUP/SLEEP settings for the gpu_cc_cx_gmu_clk */ + mask = CX_GMU_CBCR_WAKE_MASK << CX_GMU_CBCR_WAKE_SHIFT; + mask |= CX_GMU_CBCR_SLEEP_MASK << CX_GMU_CBCR_SLEEP_SHIFT; + value = 0xF << CX_GMU_CBCR_WAKE_SHIFT | 0xF << CX_GMU_CBCR_SLEEP_SHIFT; + regmap_update_bits(regmap, 0x1098, mask, value); + + /* gpu_cc_ahb_clk */ + regmap_update_bits(regmap, 0x1078, 0x1, 0x1); + + /* Configure clk_dis_wait for gpu_cx_gdsc */ + regmap_update_bits(regmap, 0x106c, CLK_DIS_WAIT_MASK, + 8 << CLK_DIS_WAIT_SHIFT); + + return qcom_cc_really_probe(pdev, &gpu_cc_sc7180_desc, regmap); +} + +static struct platform_driver gpu_cc_sc7180_driver = { + .probe = gpu_cc_sc7180_probe, + .driver = { + .name = "sc7180-gpucc", + .of_match_table = gpu_cc_sc7180_match_table, + }, +}; + +static int __init gpu_cc_sc7180_init(void) +{ + return platform_driver_register(&gpu_cc_sc7180_driver); +} +core_initcall(gpu_cc_sc7180_init); + +static void __exit gpu_cc_sc7180_exit(void) +{ + platform_driver_unregister(&gpu_cc_sc7180_driver); +} +module_exit(gpu_cc_sc7180_exit); + +MODULE_DESCRIPTION("QTI GPU_CC SC7180 Driver"); +MODULE_LICENSE("GPL v2");