From patchwork Mon Nov 1 08:45:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li-hao Kuo X-Patchwork-Id: 12596133 X-Patchwork-Delegate: daniel.lezcano@linaro.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B7ECC4332F for ; Mon, 1 Nov 2021 08:45:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E713760551 for ; Mon, 1 Nov 2021 08:45:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229933AbhKAIry (ORCPT ); Mon, 1 Nov 2021 04:47:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231695AbhKAIrx (ORCPT ); Mon, 1 Nov 2021 04:47:53 -0400 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06640C061714; Mon, 1 Nov 2021 01:45:17 -0700 (PDT) Received: by mail-pl1-x62e.google.com with SMTP id v20so11089261plo.7; Mon, 01 Nov 2021 01:45:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=pyHgyvdYN9mfI560DHVzHVQgQloYct/ExUi3QqbzJbQ=; b=DkMEZBQF03H9D909AOR3mYOk3biz5rvdsg1TwLkKxjwj3D5Wy3gqk58br7FayxRcQG JG1j5O2sPkQ8cYn9vkIHRNCTbE1VRS6Wu79739HNB0/D14/axmZE5uvADwo7T/91mC1e FmXdh8uUajQA0ArjJf+gL3LwgjnpSJ6NlxwzxRfF48jP5WW7qo61Yg1bbmMW/qqKRSn1 gnY0nKv1tPfqKUVG1EwmOoaEnesIHJIXfwr1QY2zMvZSOxnNEBOn7ynXjdll2GJsNCuV ZzYVfkRISlmabh3/1fGIQFurNgvJ8fGskggm79ZG0c4GRn1WK0uSZjjWV8HKP0FXqWrA NgbQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=pyHgyvdYN9mfI560DHVzHVQgQloYct/ExUi3QqbzJbQ=; b=H95DhivjCcyJonnA4edoufmLiAyzyTzfdYrWfuL1MXgFhQly7fE7BBKwCsrorCTEWl XHTIn1TJV9xp81b24x2hiq42VUZcr6N6SiLkLMryngYo/FlPy0RHAt1OZ5KJEMwJy0+U ZSL+Xw/AuR0JmxT0GWJpXs5vStkOpFVFo0mq69af8M60PXPhE7nBK0t+jaOHJ3C8P6Wk +s8D7k6hHvR+nnkkVcH96MfOoBW0Cq7dmDzOjwNVDR2lAleaxtf2kfwrHVJmbXuOqAmQ g535xDdaPBkxlDTtI2P18cTmbtWoQr40zdk7hHy7gz9CSHQIrGgLpw1nUbAyZrtqVjVA 9IEQ== X-Gm-Message-State: AOAM530o+Yj7MjqFPu5PQ85fp7M4vszchpYZWFf5E8kCUAuUQHdleRb6 t9XZplbqAem+03svs09CniI= X-Google-Smtp-Source: ABdhPJwe/eFzqFQVQnw9NEbyA+dGlCAQ0Q9E3lrvZp5WMSihk4tDej47vJGoWu5FxJGX5WDtVKk0FA== X-Received: by 2002:a17:902:edc7:b0:141:a2d8:ede9 with SMTP id q7-20020a170902edc700b00141a2d8ede9mr20412013plk.24.1635756316261; Mon, 01 Nov 2021 01:45:16 -0700 (PDT) Received: from scdiu3.sunplus.com ([113.196.136.192]) by smtp.googlemail.com with ESMTPSA id nv5sm13406574pjb.10.2021.11.01.01.45.14 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 01 Nov 2021 01:45:16 -0700 (PDT) From: "LH.Kuo" X-Google-Original-From: "LH.Kuo" To: rafael@kernel.org, daniel.lezcano@linaro.org, amitk@kernel.org, rui.zhang@intel.com, robh+dt@kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: qinjian@cqplus1.com, wells.lu@sunplus.com, "LH.Kuo" Subject: [PATCH 1/2] THERMAL: Add THERMAL driver for Sunplus SP7021 Date: Mon, 1 Nov 2021 16:45:09 +0800 Message-Id: <1635756310-25415-2-git-send-email-lh.kuo@sunplus.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1635756310-25415-1-git-send-email-lh.kuo@sunplus.com> References: <1635756310-25415-1-git-send-email-lh.kuo@sunplus.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add THERMAL driver for Sunplus SP7021. Signed-off-by: LH.Kuo --- MAINTAINERS | 6 + drivers/thermal/Kconfig | 10 ++ drivers/thermal/Makefile | 1 + drivers/thermal/sunplus_thermal.c | 287 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 304 insertions(+) create mode 100644 drivers/thermal/sunplus_thermal.c diff --git a/MAINTAINERS b/MAINTAINERS index 3b79fd4..dff822b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17945,6 +17945,12 @@ L: netdev@vger.kernel.org S: Maintained F: drivers/net/ethernet/dlink/sundance.c +SUNPLUS THERMAL DRIVER +M: LH Kuo +L: linux-pm@vger.kernel.org +S: Maintained +F: drivers/thermal/sunplus_thermal.c + SUPERH M: Yoshinori Sato M: Rich Felker diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index d7f44de..6643a81 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -493,4 +493,14 @@ config KHADAS_MCU_FAN_THERMAL If you say yes here you get support for the FAN controlled by the Microcontroller found on the Khadas VIM boards. +config SUNPLUS_THERMAL + tristate "Sunplus thermal drivers" + depends on SOC_SP7021 + help + This the Sunplus SP7021 thermal driver, which supports the primitive + temperature sensor embedded in Sunplus SP7021 SoC. + + If you have a Sunplus SP7021 platform say Y here and enable this option + to have support for thermal management + endif diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index 82fc3e6..23f8dce 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -60,3 +60,4 @@ obj-$(CONFIG_UNIPHIER_THERMAL) += uniphier_thermal.o obj-$(CONFIG_AMLOGIC_THERMAL) += amlogic_thermal.o obj-$(CONFIG_SPRD_THERMAL) += sprd_thermal.o obj-$(CONFIG_KHADAS_MCU_FAN_THERMAL) += khadas_mcu_fan.o +obj-$(CONFIG_SUNPLUS_THERMAL) += sunplus_thermal.o \ No newline at end of file diff --git a/drivers/thermal/sunplus_thermal.c b/drivers/thermal/sunplus_thermal.c new file mode 100644 index 0000000..ab17fd7 --- /dev/null +++ b/drivers/thermal/sunplus_thermal.c @@ -0,0 +1,287 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * SP7021 SoC thermal driver. + * Copyright (C) Sunplus Tech/Tibbo Tech. 2019 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DISABLE_THREMAL (1<<31 | 1<<15) +#define ENABLE_THREMAL (1<<31) + +// thermal_sts_0 last 10 bits +#define TEMP_MASK 0x7FF + +#define TEMP_RATE 608 + +/* common data structures */ +struct sp_thermal_data { + struct thermal_zone_device *pcb_tz; + enum thermal_device_mode mode; + struct platform_device *pdev; + long sensor_temp; + uint32_t id; + void __iomem *regs; +}; + +struct sp_thermal_data sp_thermal; + +#define MOO5_REG_NAME "thermal_reg" +#define MOO4_REG_NAME "thermal_moon4" +#define OTP_CALIB_REG "therm_calib" + +struct sp_thermal_reg { + unsigned int mo5_thermal_ctl0; + unsigned int mo5_thermal_ctl1; + unsigned int mo5_thermal_ctl2; + unsigned int mo5_thermal_ctl3; + unsigned int mo5_tmds_l2sw_ctl; + unsigned int mo5_l2sw_clksw_ctl; + unsigned int mo5_i2c2bus_ctl; + unsigned int mo5_pfcnt_ctl; + unsigned int mo5_pfcntl_sensor_ctl0; + unsigned int mo5_pfcntl_sensor_ctl1; + unsigned int mo5_pfcnt_sts0; + unsigned int mo5_pfcnt_sts1; + unsigned int mo5_thermal_sts0; + unsigned int mo5_thermal_sts1; + unsigned int mo5_rsv13; + unsigned int mo5_rsv14; + unsigned int mo5_rsv15; + unsigned int mo5_rsv16; + unsigned int mo5_rsv17; + unsigned int mo5_rsv18; + unsigned int mo5_rsv19; + unsigned int mo5_rsv20; + unsigned int mo5_rsv21; + unsigned int mo5_dc09_ctl0; + unsigned int mo5_dc09_ctl1; + unsigned int mo5_dc09_ctl2; + unsigned int mo5_dc12_ctl0; + unsigned int mo5_dc12_ctl1; + unsigned int mo5_dc12_ctl2; + unsigned int mo5_dc15_ctl0; + unsigned int mo5_dc15_ctl1; + unsigned int mo5_dc15_ctl2; +}; + +static struct sp_thermal_reg *thermal_reg_ptr; + +struct sp_ctl_reg { + unsigned int mo4_pllsp_ctl0; + unsigned int mo4_pllsp_ctl1; + unsigned int mo4_pllsp_ctl2; + unsigned int mo4_pllsp_ctl3; + unsigned int mo4_pllsp_ctl4; + unsigned int mo4_pllsp_ctl5; + unsigned int mo4_pllsp_ctl6; + unsigned int mo5_pfcnt_ctl; + unsigned int mo4_plla_ctl0; + unsigned int mo4_plla_ctl1; + unsigned int mo4_plla_ctl2; + unsigned int mo4_plla_ctl3; + unsigned int mo4_plla_ctl4; + unsigned int mo4_plle_ctl; + unsigned int mo4_pllf_ctl; + unsigned int mo4_plltv_ctl0; + unsigned int mo4_plltv_ctl1; + unsigned int mo4_plltv_ctl2; + unsigned int mo4_usbc_ctl; + unsigned int mo4_uphy0_ctl0; + unsigned int mo4_uphy0_ctl1; + unsigned int mo4_uphy0_ctl2; + unsigned int mo4_uphy1_ctl0; + unsigned int mo4_uphy1_ctl1; + unsigned int mo4_uphy1_ctl2; + unsigned int mo4_uphy1_ctl3; + unsigned int mo4_pllsys; + unsigned int mo_clk_sel0; + unsigned int mo_probe_sel; + unsigned int mo4_misc_ctl0; + unsigned int mo4_uphy0_sts; + unsigned int otp_st; +}; + +static struct sp_ctl_reg *sp_ctl_reg_ptr; + +int otp_thermal_t0; +int otp_thermal_t1; + +char *sp7021_otp_coef_read(struct device *_d, ssize_t *_l) +{ + char *ret = NULL; + struct nvmem_cell *c = nvmem_cell_get(_d, OTP_CALIB_REG); + + if (IS_ERR_OR_NULL(c)) { + dev_err(_d, "OTP read failure:%ld", PTR_ERR(c)); + return NULL; + } + ret = nvmem_cell_read(c, _l); + nvmem_cell_put(c); + dev_dbg(_d, "%d bytes read from OTP", *_l); + return ret; +} + +static void sp7021_get_otp_temp_coef(struct device *_d) +{ + ssize_t otp_l = 0; + char *otp_v; + + otp_v = sp7021_otp_coef_read(_d, &otp_l); + if (otp_l < 3) + return; + if (IS_ERR_OR_NULL(otp_v)) + return; + dev_dbg(_d, "OTP: %d %d %d", otp_v[0], otp_v[1], otp_v[2]); + + otp_thermal_t0 = otp_v[0] | (otp_v[1] << 8); + otp_thermal_t0 = otp_thermal_t0 & TEMP_MASK; + otp_thermal_t1 = (otp_v[1] >> 3) | (otp_v[2] << 5); + otp_thermal_t1 = otp_thermal_t1 & TEMP_MASK; + if (otp_thermal_t0 == 0) + otp_thermal_t0 = 1518; +} + +static int sp_thermal_get_sensor_temp(void *_data, int *temp) +{ + struct sp_thermal_data *data = _data; + struct sp_thermal_reg *thermal_reg = data->regs; + int t_code; + + t_code = (readl(&(thermal_reg->mo5_thermal_sts0)) & TEMP_MASK); + *temp = ((otp_thermal_t0 - t_code)*10000/TEMP_RATE)+3500; + *temp *= 10; // milli means 10^-3! + dev_dbg(&(data->pdev->dev), "tc:%d t:%d", t_code, *temp); + return 0; +} + +static struct thermal_zone_of_device_ops sp_of_thermal_ops = { + .get_temp = sp_thermal_get_sensor_temp, +}; + +static int sp_thermal_register_sensor(struct platform_device *pdev, + struct sp_thermal_data *data, + int index) +{ + int ret; + + data->id = index; + data->pcb_tz = devm_thermal_zone_of_sensor_register(&pdev->dev, + data->id, data, &sp_of_thermal_ops); + if (!IS_ERR_OR_NULL(data->pcb_tz)) + return 0; + ret = PTR_ERR(data->pcb_tz); + data->pcb_tz = NULL; + dev_err(&pdev->dev, "sensor#%d reg fail: %d\n", index, ret); + return ret; } + +static int sp7021_thermal_probe(struct platform_device *_pd) +{ + struct sp_thermal_data *sp_data; + int ret; + struct resource *res; + void __iomem *reg_base; + void __iomem *ctl_base; + int ctl_code; + + sp_data = devm_kzalloc(&(_pd->dev), sizeof(*sp_data), GFP_KERNEL); + if (!sp_data) + return -ENOMEM; + + memset(&sp_thermal, 0, sizeof(sp_thermal)); + + res = platform_get_resource_byname(_pd, IORESOURCE_MEM, MOO5_REG_NAME); + if (IS_ERR(res)) { + dev_err(&(_pd->dev), "get_resource(%s) fail\n", MOO5_REG_NAME); + ret = PTR_ERR(res); + return ret; + } + reg_base = devm_ioremap(&(_pd->dev), res->start, resource_size(res)); + if (IS_ERR(reg_base)) { + dev_err(&(_pd->dev), "ioremap_resource(%s) fail\n", MOO5_REG_NAME); + ret = PTR_ERR(res); + return ret; + } + sp_data->regs = reg_base; + + res = platform_get_resource_byname(_pd, IORESOURCE_MEM, MOO4_REG_NAME); + if (IS_ERR(res)) { + dev_err(&(_pd->dev), "get_resource(%s) fail\n", MOO4_REG_NAME); + ret = PTR_ERR(res); + return ret; + } + ctl_base = devm_ioremap(&(_pd->dev), res->start, resource_size(res)); + if (IS_ERR(reg_base)) { + dev_err(&(_pd->dev), "ioremap_resource(%s) fail\n", MOO4_REG_NAME); + ret = PTR_ERR(res); + return ret; + } + + dev_dbg(&(_pd->dev), "reg:%p ctl:%p\n", reg_base, ctl_base); + + thermal_reg_ptr = (struct sp_thermal_reg *)(reg_base); + sp_ctl_reg_ptr = (struct sp_ctl_reg *)(ctl_base); + + // FIXME: enable thermal function - customize this part + writel(ENABLE_THREMAL, &(thermal_reg_ptr->mo5_thermal_ctl0)); + // FIXME: it's just reg state. Clock enabled at different place + ctl_code = 0xFFFF & readl(&(sp_ctl_reg_ptr->mo_clk_sel0)); + // writel(0x78F07810 , &sp_ctl_reg_ptr->mo_clk_sel0); // enable thermal function + dev_dbg(&(_pd->dev), "ctl_code %x ", ctl_code); + + platform_set_drvdata(_pd, sp_data); + sp7021_get_otp_temp_coef(&(_pd->dev)); + ret = sp_thermal_register_sensor(_pd, sp_data, 0); + if (ret == 0) + dev_info(&(_pd->dev), "by Sunplus (C) 2020"); + return ret; +} + +static int sp7021_thermal_remove(struct platform_device *_pd) +{ + // nothing to do case devm_* + return 0; +} + +static const struct of_device_id of_sp7021_thermal_ids[] = { + { .compatible = "sunplus,sp7021-thermal" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_sp7021_thermal_ids); + +static struct platform_driver sp7021_thermal_driver = { + .probe = sp7021_thermal_probe, + .remove = sp7021_thermal_remove, + .driver = { + .name = "sp7021-thermal", + .of_match_table = of_match_ptr(of_sp7021_thermal_ids), + }, +}; +module_platform_driver(sp7021_thermal_driver); + +MODULE_AUTHOR("lH Kuo "); +MODULE_DESCRIPTION("Thermal driver for SP7021 SoC"); +MODULE_LICENSE("GPL v2"); From patchwork Mon Nov 1 08:45:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li-hao Kuo X-Patchwork-Id: 12596135 X-Patchwork-Delegate: daniel.lezcano@linaro.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06FA7C433EF for ; Mon, 1 Nov 2021 08:45:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E98B061027 for ; Mon, 1 Nov 2021 08:45:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231751AbhKAIry (ORCPT ); Mon, 1 Nov 2021 04:47:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231708AbhKAIrx (ORCPT ); Mon, 1 Nov 2021 04:47:53 -0400 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 00E58C061746; Mon, 1 Nov 2021 01:45:19 -0700 (PDT) Received: by mail-pj1-x102a.google.com with SMTP id om14so11650026pjb.5; Mon, 01 Nov 2021 01:45:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=DekNLEfhhgLvATAHmAlir4Xk1UwXtcvay+PcI5jYhb0=; b=DhZHZkgukvhWnsld3/nxeteD0mpgKJ3U3aHd+0EgMsfh5yNPD8pMW1mtA3VFxJr+Gg PgogT7rViQu61TyRlGn8vdie+cEUlAUS/MtIESwMhIpDaBytO11rveddQOWXqz4RU0Km ytcAo5SBOFNTZFPSf5IYMYEeHpg1S8NIs1c9la8jTExJQ4bH2adP/uhzTqmhNRNtZZZ/ 061mC4NNaSGEs7CurV4UjiTmKAoihG9yf4XV6fkfyTC5PYNqUMzh+yMMGZ/Yq0aE6WAh CZ0GSAUEdt8TomxsneykM46RwqrBP4ntNw8J0P0HokaKC9JgD4Q2bIyhpSSR5wyRmaJh JLsQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=DekNLEfhhgLvATAHmAlir4Xk1UwXtcvay+PcI5jYhb0=; b=ItJzNPhGDbAGYhXgmjAItNFj0XTuaXp5SRf45ih0pXIhELCZp+GqwMJkSDsyy1DqK+ 3/oNNJhkfG8b4RQCnBrWcaqSCJ+ml59P6/ZLwRCkz4ZMIyEdg1mvc/ysBZFVfkmLI5nz tKNPnO6FPJ9SIVVEbxjq6vtG06z0nPws1lKRb7Cr4ypEguePKnlQcfUPyX3cGz0cXemF yW6VIfplBNnddP4to9f1J0inTwHmoFfibmzHxZTl3S2eMAjUxMQFaQqcUx4+StTbV+kK TSUwFVMu2FV2jMe2aSy4yEtSd8aIyfEkPKNvtN8HBe7TwYWsRC7kuNeDgkVFZcN3OeSU tD1g== X-Gm-Message-State: AOAM530vAKPqJNCNfZOXc2DmmJjo5VV31Ub8KIfN8iJjdosVR5EBXan0 EyvaBJOutmYvU4vmHwFGecg= X-Google-Smtp-Source: ABdhPJwpAGf5449u2A8iy5LG/WkxsJjrEQiZWq714+cO4aQXKm92kn0lu/SbogKFNJ45D+NlnxfLrg== X-Received: by 2002:a17:903:244d:b0:140:6573:43ce with SMTP id l13-20020a170903244d00b00140657343cemr24110005pls.54.1635756318415; Mon, 01 Nov 2021 01:45:18 -0700 (PDT) Received: from scdiu3.sunplus.com ([113.196.136.192]) by smtp.googlemail.com with ESMTPSA id nv5sm13406574pjb.10.2021.11.01.01.45.16 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 01 Nov 2021 01:45:18 -0700 (PDT) From: "LH.Kuo" X-Google-Original-From: "LH.Kuo" To: rafael@kernel.org, daniel.lezcano@linaro.org, amitk@kernel.org, rui.zhang@intel.com, robh+dt@kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: qinjian@cqplus1.com, wells.lu@sunplus.com, "LH.Kuo" Subject: [PATCH 2/2] devicetree bindings THERMAL Add bindings doc for Sunplus SP7021 Date: Mon, 1 Nov 2021 16:45:10 +0800 Message-Id: <1635756310-25415-3-git-send-email-lh.kuo@sunplus.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1635756310-25415-1-git-send-email-lh.kuo@sunplus.com> References: <1635756310-25415-1-git-send-email-lh.kuo@sunplus.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add devicetree bindings THERMAL Add bindings doc for Sunplus SP7021 Signed-off-by: LH.Kuo --- .../bindings/thermal/sunplus_thermal.yaml | 52 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/sunplus_thermal.yaml diff --git a/Documentation/devicetree/bindings/thermal/sunplus_thermal.yaml b/Documentation/devicetree/bindings/thermal/sunplus_thermal.yaml new file mode 100644 index 0000000..1875d04 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/sunplus_thermal.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) Sunplus Co., Ltd. 2021 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/sunplus_thermal.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sunplus Thermal controller + +maintainers: + - lh.kuo + +properties: + compatible: + enum: + - sunplus,sp7021-thermal + + reg: + items: + - description: Base address and length of the Thermal registers + - description: Base address and length of the Thermal calibration registers + + reg-names: + items: + - const: thermal_reg + - const: thermal_moon4 + + nvmem-cells: + maxItems: 1 + + nvmem-cell-names: + const: therm_calib + +required: + - compatible + - reg + - reg-names + - nvmem-cells + - nvmem-cell-names + +additionalProperties: false + +examples: + - | + thermal: serial@9c000280 { + compatible = "sunplus,sp7021-thermal"; + reg = <0x9c000280 0x80>, <0x9c000200 0x80>; + reg-names = "thermal_reg", "thermal_moon4"; + nvmem-cells = <&therm_calib>; + nvmem-cell-names = "therm_calib"; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index dff822b..2080b00 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17949,6 +17949,7 @@ SUNPLUS THERMAL DRIVER M: LH Kuo L: linux-pm@vger.kernel.org S: Maintained +F: Documentation/devicetree/bindings/thermal/sunplus_thermal.yaml F: drivers/thermal/sunplus_thermal.c SUPERH