From nobody Fri Dec 19 02:50:00 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3B5D8EDEC76 for ; Wed, 13 Sep 2023 15:16:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241629AbjIMPQf (ORCPT ); Wed, 13 Sep 2023 11:16:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241339AbjIMPQ2 (ORCPT ); Wed, 13 Sep 2023 11:16:28 -0400 Received: from mail-wm1-x336.google.com (mail-wm1-x336.google.com [IPv6:2a00:1450:4864:20::336]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 401DFE7; Wed, 13 Sep 2023 08:16:24 -0700 (PDT) Received: by mail-wm1-x336.google.com with SMTP id 5b1f17b1804b1-401c90ed2ecso75774025e9.0; Wed, 13 Sep 2023 08:16:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1694618182; x=1695222982; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=072YJrk5Gsy2bq4yUlijuT8JKmshwKnpnmiZoFXozDk=; b=A0HjeEnJLFGRcVPHXRkheDcvqJXreG3IeqNqnSgqM94IrECRZ2eUdy/2XjhemNT8AS 5/+vvwahHHZYTYsjNls9gSl9DF1yP8NRiY/xNIBswNE98WXXudnYQ2in/Dzdrond3xAt WK8XpjLLUujoyyQ8OV0DmcYBegUi3rbHeYEi2xKF0Syw2HfLDn6k0UoBAz++xRveCT0Q u5ZqwLdU55pw3Ronjp9Yhw2iqoB1eBcrr8eBsF3nxnK0X8ykMdftVCCxM6+LY+DV6uiD S1VFbYbg6DCkhf+5wQfzEu8CtZqOYUz4LwG+knsy4o2rp4cZ5GEf5+YS3qOoDK3Ni+Ix 3dVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694618182; x=1695222982; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=072YJrk5Gsy2bq4yUlijuT8JKmshwKnpnmiZoFXozDk=; b=IZkY3JYDMixi9Ml1JNgzfLlnupvx4afs4Sc8DN+0PdMG5ahZt7r3ZBPiMrS7yqti/8 EhMsxvoS1CTSj4btBbbHV3yeG77fhXkc/9b0w8ibvZqJINxE3J6e6eUz7YvHfakwSWLq LqXskqJ6nzyzu88j5vKnZcKVRueeR8W+Vdb8i6b+aZHnrQzZDSzNHUQbpCgBgMS9A6cF 7J1054GvTg45Z8txmk+VgopoM7J6fVjMtbXCHtC5IvzBaAJpmZwMgtLnoVP7GjCnr4ic Jrp/EvJ9QLufo4RNaJ25vOabb8OravUiv4tUPmJ2WyvtYQNv1iJPilR3KlpotGZe2h2s LadA== X-Gm-Message-State: AOJu0YxaWDMQzG1nG7e9HCRuD4N2aZqz8RzZCtSzAGqG5z6ZRpzBJTOB JexVhLFHhNTIYFBQGx+hF5Q= X-Google-Smtp-Source: AGHT+IEd/4icH+OCrB98jAeWL0me/9kKV05TD9d+6akO1+csfozUhRaahZUf8y+5fJwYaZHei9B4Xw== X-Received: by 2002:a7b:c045:0:b0:402:e68f:8896 with SMTP id u5-20020a7bc045000000b00402e68f8896mr2430801wmc.0.1694618182223; Wed, 13 Sep 2023 08:16:22 -0700 (PDT) Received: from debby ([2a01:e0a:a6d:a8d0:7ff4:8f61:5574:9f95]) by smtp.gmail.com with ESMTPSA id f20-20020a7bcd14000000b003fe2b6d64c8sm2299620wmj.21.2023.09.13.08.16.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Sep 2023 08:16:21 -0700 (PDT) From: Romain Perier To: Alessandro Zummo , Alexandre Belloni , Daniel Palmer , Romain Perier , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/3] rtc: Add support for the SSD202D RTC Date: Wed, 13 Sep 2023 17:16:04 +0200 Message-Id: <20230913151606.69494-2-romain.perier@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230913151606.69494-1-romain.perier@gmail.com> References: <20230913151606.69494-1-romain.perier@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Newer SigmaStar SSD202D SoCs contain a Real Time Clock, capable of running while the system is sleeping (battery powered), this is not the case with the other RTC on older SoCs. This adds basic support for this RTC block. Signed-off-by: Romain Perier Co-developed-by: Daniel Palmer Signed-off-by: Daniel Palmer --- drivers/rtc/Kconfig | 11 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-ssd202d.c | 249 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 261 insertions(+) create mode 100644 drivers/rtc/rtc-ssd202d.c diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index d7502433c78a..f6c49348d7aa 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -1984,4 +1984,15 @@ config RTC_DRV_POLARFIRE_SOC This driver can also be built as a module, if so, the module will be called "rtc-mpfs". =20 +config RTC_DRV_SSD202D + tristate "SigmaStar SSD202D RTC" + depends on ARCH_MSTARV7 || COMPILE_TEST + default ARCH_MSTARV7 + help + If you say yes here you get support for the SigmaStar SSD202D On-Chip + Real Time Clock. + + This driver can also be built as a module, if so, the module + will be called "rtc-ssd20xd". + endif # RTC_CLASS diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index fd209883ee2e..7b03c3abfd78 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -103,6 +103,7 @@ obj-$(CONFIG_RTC_DRV_MESON) +=3D rtc-meson.o obj-$(CONFIG_RTC_DRV_MOXART) +=3D rtc-moxart.o obj-$(CONFIG_RTC_DRV_MPC5121) +=3D rtc-mpc5121.o obj-$(CONFIG_RTC_DRV_MSC313) +=3D rtc-msc313.o +obj-$(CONFIG_RTC_DRV_SSD202D) +=3D rtc-ssd202d.o obj-$(CONFIG_RTC_DRV_MSM6242) +=3D rtc-msm6242.o obj-$(CONFIG_RTC_DRV_MT2712) +=3D rtc-mt2712.o obj-$(CONFIG_RTC_DRV_MT6397) +=3D rtc-mt6397.o diff --git a/drivers/rtc/rtc-ssd202d.c b/drivers/rtc/rtc-ssd202d.c new file mode 100644 index 000000000000..a69e062ad1b4 --- /dev/null +++ b/drivers/rtc/rtc-ssd202d.c @@ -0,0 +1,249 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Real time clocks driver for MStar/SigmaStar SSD202D SoCs. + * + * (C) 2021 Daniel Palmer + * (C) 2023 Romain Perier + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define REG_CTRL 0x0 +#define REG_CTRL1 0x4 +#define REG_ISO_CTRL 0xc +#define REG_WRDATA_L 0x10 +#define REG_WRDATA_H 0x14 +#define REG_ISOACK 0x20 +#define REG_RDDATA_L 0x24 +#define REG_RDDATA_H 0x28 +#define REG_RDCNT_L 0x30 +#define REG_RDCNT_H 0x34 +#define REG_CNT_TRIG 0x38 +#define REG_PWRCTRL 0x3c +#define REG_RTC_TEST 0x54 + +#define CNT_RD_TRIG_BIT BIT(0) +#define CNT_RD_BIT BIT(0) +#define BASE_WR_BIT BIT(1) +#define BASE_RD_BIT BIT(2) +#define CNT_RST_BIT BIT(3) +#define ISO_CTRL_ACK_MASK BIT(3) +#define ISO_CTRL_ACK_SHIFT 3 +#define SW0_WR_BIT BIT(5) +#define SW1_WR_BIT BIT(6) +#define SW0_RD_BIT BIT(7) +#define SW1_RD_BIT BIT(8) + +#define ISO_CTRL_MASK GENMASK(2, 0) + +struct ssd202d_rtc { + struct rtc_device *rtc_dev; + void __iomem *base; +}; + +static u8 read_iso_en(void __iomem *base) +{ + return readb(base + REG_RTC_TEST) & 0x1; +} + +static u8 read_iso_ctrl_ack(void __iomem *base) +{ + return (readb(base + REG_ISOACK) & ISO_CTRL_ACK_MASK) >> ISO_CTRL_ACK_SHI= FT; +} + +static int ssd202d_rtc_isoctrl(struct ssd202d_rtc *priv) +{ + static const unsigned int sequence[] =3D { 0x0, 0x1, 0x3, 0x7, 0x5, 0x1, = 0x0 }; + unsigned int val; + struct device *dev =3D &priv->rtc_dev->dev; + int i, ret; + + /* + * This gates iso_en by writing a special sequence of bytes to iso_ctrl + * and ensuring that it has been correctly applied by reading iso_ctrl_ack + */ + for (i =3D 0; i < ARRAY_SIZE(sequence); i++) { + writeb(sequence[i] & ISO_CTRL_MASK, priv->base + REG_ISO_CTRL); + + ret =3D read_poll_timeout(read_iso_ctrl_ack, val, val =3D=3D (i % 2), 10= 0, + 20 * 100, true, priv->base); + if (ret) { + dev_dbg(dev, "Timeout waiting for ack byte %i (%x) of sequence\n", i, + sequence[i]); + return ret; + } + } + + /* + * At this point iso_en should be raised for 1ms + */ + ret =3D read_poll_timeout(read_iso_en, val, val, 100, 22 * 100, true, pri= v->base); + if (ret) + dev_dbg(dev, "Timeout waiting for iso_en\n"); + mdelay(2); + return 0; +} + +static void ssd202d_rtc_read_reg(struct ssd202d_rtc *priv, unsigned int re= g, + unsigned int field, unsigned int *base) +{ + unsigned int l, h; + u16 val; + + /* Ask for the content of an RTC value into RDDATA by gating iso_en, + * then iso_en is gated and the content of RDDATA can be read + */ + val =3D readw(priv->base + reg); + writew(val | field, priv->base + reg); + ssd202d_rtc_isoctrl(priv); + writew(val & ~field, priv->base + reg); + + l =3D readw(priv->base + REG_RDDATA_L); + h =3D readw(priv->base + REG_RDDATA_H); + + *base =3D (h << 16) | l; +} + +static void ssd202d_rtc_write_reg(struct ssd202d_rtc *priv, unsigned int r= eg, + unsigned int field, u32 base) +{ + u16 val; + + /* Set the content of an RTC value from WRDATA by gating iso_en */ + val =3D readw(priv->base + reg); + writew(val | field, priv->base + reg); + writew(base, priv->base + REG_WRDATA_L); + writew(base >> 16, priv->base + REG_WRDATA_H); + ssd202d_rtc_isoctrl(priv); + writew(val & ~field, priv->base + reg); +} + +static int ssd202d_rtc_read_counter(struct ssd202d_rtc *priv, unsigned int= *counter) +{ + unsigned int l, h; + u16 val; + + val =3D readw(priv->base + REG_CTRL1); + writew(val | CNT_RD_BIT, priv->base + REG_CTRL1); + ssd202d_rtc_isoctrl(priv); + writew(val & ~CNT_RD_BIT, priv->base + REG_CTRL1); + + val =3D readw(priv->base + REG_CTRL1); + writew(val | CNT_RD_TRIG_BIT, priv->base + REG_CNT_TRIG); + writew(val & ~CNT_RD_TRIG_BIT, priv->base + REG_CNT_TRIG); + + l =3D readw(priv->base + REG_RDCNT_L); + h =3D readw(priv->base + REG_RDCNT_H); + + *counter =3D (h << 16) | l; + + return 0; +} + +static int ssd202d_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct ssd202d_rtc *priv =3D dev_get_drvdata(dev); + unsigned int sw0, base, counter; + u32 seconds; + int ret; + + /* Check that RTC is enabled by SW */ + ssd202d_rtc_read_reg(priv, REG_CTRL, SW0_RD_BIT, &sw0); + if (sw0 !=3D 1) + return -EINVAL; + + /* Get RTC base value from RDDATA */ + ssd202d_rtc_read_reg(priv, REG_CTRL, BASE_RD_BIT, &base); + /* Get RTC counter value from RDDATA */ + ret =3D ssd202d_rtc_read_counter(priv, &counter); + if (ret) + return ret; + + seconds =3D base + counter; + + rtc_time64_to_tm(seconds, tm); + + return 0; +} + +static int ssd202d_rtc_reset_counter(struct ssd202d_rtc *priv) +{ + u16 val; + + val =3D readw(priv->base + REG_CTRL); + writew(val | CNT_RST_BIT, priv->base + REG_CTRL); + ssd202d_rtc_isoctrl(priv); + writew(val & ~CNT_RST_BIT, priv->base + REG_CTRL); + ssd202d_rtc_isoctrl(priv); + + return 0; +} + +static int ssd202d_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct ssd202d_rtc *priv =3D dev_get_drvdata(dev); + unsigned long seconds =3D rtc_tm_to_time64(tm); + + ssd202d_rtc_write_reg(priv, REG_CTRL, BASE_WR_BIT, seconds); + ssd202d_rtc_reset_counter(priv); + ssd202d_rtc_write_reg(priv, REG_CTRL, SW0_WR_BIT, 1); + + return 0; +} + +static const struct rtc_class_ops ssd202d_rtc_ops =3D { + .read_time =3D ssd202d_rtc_read_time, + .set_time =3D ssd202d_rtc_set_time, +}; + +static int ssd202d_rtc_probe(struct platform_device *pdev) +{ + struct device *dev =3D &pdev->dev; + struct ssd202d_rtc *priv; + + priv =3D devm_kzalloc(&pdev->dev, sizeof(struct ssd202d_rtc), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->base =3D devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); + + priv->rtc_dev =3D devm_rtc_allocate_device(dev); + if (IS_ERR(priv->rtc_dev)) + return PTR_ERR(priv->rtc_dev); + + priv->rtc_dev->ops =3D &ssd202d_rtc_ops; + priv->rtc_dev->range_max =3D U32_MAX; + + platform_set_drvdata(pdev, priv); + + return devm_rtc_register_device(priv->rtc_dev); +} + +static const struct of_device_id ssd202d_rtc_of_match_table[] =3D { + { .compatible =3D "mstar,ssd202d-rtc" }, + { } +}; +MODULE_DEVICE_TABLE(of, ssd202d_rtc_of_match_table); + +static struct platform_driver ssd202d_rtc_driver =3D { + .probe =3D ssd202d_rtc_probe, + .driver =3D { + .name =3D "ssd202d-rtc", + .of_match_table =3D ssd202d_rtc_of_match_table, + }, +}; +module_platform_driver(ssd202d_rtc_driver); + +MODULE_AUTHOR("Daniel Palmer "); +MODULE_AUTHOR("Romain Perier "); +MODULE_DESCRIPTION("MStar SSD202D RTC Driver"); +MODULE_LICENSE("GPL v2"); --=20 2.39.2 From nobody Fri Dec 19 02:50:00 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9273EDEC71 for ; Wed, 13 Sep 2023 15:16:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241350AbjIMPQz (ORCPT ); Wed, 13 Sep 2023 11:16:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241308AbjIMPQa (ORCPT ); Wed, 13 Sep 2023 11:16:30 -0400 Received: from mail-wr1-x42a.google.com (mail-wr1-x42a.google.com [IPv6:2a00:1450:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 464F5FB; Wed, 13 Sep 2023 08:16:25 -0700 (PDT) Received: by mail-wr1-x42a.google.com with SMTP id ffacd0b85a97d-31c73c21113so6557356f8f.1; Wed, 13 Sep 2023 08:16:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1694618183; x=1695222983; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=pNvYjKW7PomV76gyvQhLurgIb+vmLHOwQJgyz6Ao3Z4=; b=OL9M/v+IrWEyqtJVXYgNJz6UIYWSWHXbmmupqxWOPk7TrDIM8VJm8bsieebdB/bpuB iTrHLsRRnymiGJiE8XPaY00fPuHzZATzNBUoRuLAptEmaDuI38/RVKsoMVXG9yHf6tAV BPcMDi6n2woOGQjwD4TF3AI8Gg7/ov7yl8EeqcqNa9BU0TVWGfgIjz49POuTsVtTV4G7 wYg2+qjM4bEaJliUGBMsRm6JP+C6t0rlbbIBC+Jj6tAk5VlBh8DsAqU+fdJRnuTgvldm 1glVAih1bdtPk7CP+BPKtiZWuXL1HH34y5MZZpIgQqkBl40lE3w51id+h7UZ7FKlb5jq Invg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694618183; x=1695222983; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=pNvYjKW7PomV76gyvQhLurgIb+vmLHOwQJgyz6Ao3Z4=; b=nK1P1lsdoh9X6av+rb2TWeB9dnUIbCqul9Qu1KSmDNwoPgYMMP6GX+W6iSkgE7m+0Z EzFZI2J9judrSHAYhbkMWLoWxT7NbtmVjTxRY18XeMOt0arPFrbzqPpLRewZmZGO52IR 6bVf5O9UsR45UxBanefkahUUsoMUuaXZxzZhHTrHlXm5CfldsFFvjxBMYEoEl3e92j0W GNOthzsN3LGYVPfabMz4zAsR/BYyke+8qT2KP/Xl8n+qOfIhMAt3kL8PeUGj/1CgtCTw dZp+20KsUra3OraqQKYPE1Qg3MBoLQVglfEAW+jOk2NHgoBgNq2jahn6CsuX7zf5XlhI ffeg== X-Gm-Message-State: AOJu0YxdQbmjEusPc1t5Hwd2WWH4Yv1Ekpg/P6igGi09psyFYYtEiAoh axDOWzUlXv/h9gZ2T3nqB7Q= X-Google-Smtp-Source: AGHT+IGn4OleF+wn7zer6c5nSeHVXOWrMzBtMjTRpP5K22bLCa0F/2iJByN4iCAY73vGnev+is5GPg== X-Received: by 2002:a05:6000:1006:b0:319:7472:f0b6 with SMTP id a6-20020a056000100600b003197472f0b6mr2171418wrx.15.1694618183348; Wed, 13 Sep 2023 08:16:23 -0700 (PDT) Received: from debby ([2a01:e0a:a6d:a8d0:7ff4:8f61:5574:9f95]) by smtp.gmail.com with ESMTPSA id h5-20020adfe985000000b0031ae8d86af4sm15664490wrm.103.2023.09.13.08.16.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Sep 2023 08:16:23 -0700 (PDT) From: Romain Perier To: Alessandro Zummo , Alexandre Belloni , Daniel Palmer , Romain Perier , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/3] dt-bindings: rtc: Add Mstar SSD202D RTC Date: Wed, 13 Sep 2023 17:16:05 +0200 Message-Id: <20230913151606.69494-3-romain.perier@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230913151606.69494-1-romain.perier@gmail.com> References: <20230913151606.69494-1-romain.perier@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add YAML bindings for Mstar SSD202D RTC. Signed-off-by: Romain Perier --- .../bindings/rtc/mstar,ssd202d-rtc.yaml | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc= .yaml diff --git a/Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc.yaml b= /Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc.yaml new file mode 100644 index 000000000000..4c1f22ef5a2c --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/mstar,ssd202d-rtc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mstar SSD202D Real Time Clock + +maintainers: + - Daniel Palmer + - Romain Perier + +allOf: + - $ref: rtc.yaml# + +properties: + compatible: + enum: + - mstar,ssd202d-rtc + reg: + maxItems: 1 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + rtc@6800 { + compatible =3D "mstar,ssd202d-rtc"; + reg =3D <0x6800 0x200>; + }; +... --=20 2.39.2 From nobody Fri Dec 19 02:50:00 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7926BEDEC7D for ; Wed, 13 Sep 2023 15:16:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241533AbjIMPQ5 (ORCPT ); Wed, 13 Sep 2023 11:16:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241559AbjIMPQb (ORCPT ); Wed, 13 Sep 2023 11:16:31 -0400 Received: from mail-wm1-x32f.google.com (mail-wm1-x32f.google.com [IPv6:2a00:1450:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 662711A7; Wed, 13 Sep 2023 08:16:26 -0700 (PDT) Received: by mail-wm1-x32f.google.com with SMTP id 5b1f17b1804b1-401d67434daso75562535e9.2; Wed, 13 Sep 2023 08:16:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1694618185; x=1695222985; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WNiCJ4XPctshWY8ffyi9hR4b/TdmnnAhBF7gV8ICkpY=; b=luVNVtZ3HmtBpd07XMkFDVZY+sc2LdHrJMG/sku0osKa8/hbiDgwi7kXer9Pqmvxcw g3NSG44iZmbUbYP6jtoqoK/QBWyc+4GgE0tj0qcEr8nQDsuQ38/xFifSCsmWLvF5jIPb W76tiamkOw2gwhzXy/typafy5UusQHnDLXMQgzoWPgkzvdlt5qSQAxGi5nZLXmClOUZs m+pr5lyDZ++X9Ps5Q4/8iem0LlutfGy4TxDldeOHhwQIYltuHyUqXceY5p6YELMvHdQw W3aW8/9qedUBDQ32Rx1r139ritUYBnjRUlaiSv0h3f9VmzhdavDJgeRksko44XnkdVF0 k2EA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694618185; x=1695222985; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=WNiCJ4XPctshWY8ffyi9hR4b/TdmnnAhBF7gV8ICkpY=; b=IWB3e9oA9zpqxz1mzB80C14MMH8gJBCWpV37lz7ZzRyu64hfCfrTAmRIMh449sJFtS 4/NxAfvIGWOHykAb+WIXZrKxSLJiUIy9npRG0veN/v8mp0Tjj4eM3lWRCnr1SiQ/evH+ sL1XD4w0/W16tFN/i0eD8mF/qrA/eHswnhOsMe/2WAUgWEDkC2dnpbPFarWTOLVPZHAA raBf9/2CPNvoQ1vzQ3474f9TGTwU9cQFaVUq3BWQX8ljH9yIz1sHjstLb3dc2aeUI1qA LYD2zcHDm4SdUr6MEAF2BgrsDUmV04Zkxa3n3F2AbJrize+KgWdUVwZuo3p2b+ah3G2k fY3g== X-Gm-Message-State: AOJu0YznxRasdmmA3a3/xsvwRYj244Dg+9Uh+HKSEi5wfuTm7xYrnOp1 iLaMmeS18BPy4SbsW/HVkHA= X-Google-Smtp-Source: AGHT+IFtGPwLNzmJ9lGo6bgRROyUOek+CMPJmj33rLwvWVE4I8uylAeEe5p5UpRZq9go6jeZN8Tc3g== X-Received: by 2002:a1c:ed01:0:b0:3fc:21:2c43 with SMTP id l1-20020a1ced01000000b003fc00212c43mr2401041wmh.13.1694618184540; Wed, 13 Sep 2023 08:16:24 -0700 (PDT) Received: from debby ([2a01:e0a:a6d:a8d0:7ff4:8f61:5574:9f95]) by smtp.gmail.com with ESMTPSA id s4-20020a05600c044400b003fee567235bsm2305140wmb.1.2023.09.13.08.16.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Sep 2023 08:16:24 -0700 (PDT) From: Romain Perier To: Alessandro Zummo , Alexandre Belloni , Daniel Palmer , Romain Perier , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 3/3] ARM: dts: mstar: Enable rtc for SSD202D Date: Wed, 13 Sep 2023 17:16:06 +0200 Message-Id: <20230913151606.69494-4-romain.perier@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230913151606.69494-1-romain.perier@gmail.com> References: <20230913151606.69494-1-romain.perier@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This adds the definition of the rtc device node. It enables RTC block for SSD202D SoCs and newer. Signed-off-by: Romain Perier --- arch/arm/boot/dts/sigmastar/mstar-infinity2m.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/sigmastar/mstar-infinity2m.dtsi b/arch/arm/b= oot/dts/sigmastar/mstar-infinity2m.dtsi index 1b485efd7156..b4ac535a73c8 100644 --- a/arch/arm/boot/dts/sigmastar/mstar-infinity2m.dtsi +++ b/arch/arm/boot/dts/sigmastar/mstar-infinity2m.dtsi @@ -32,6 +32,11 @@ cpu1: cpu@1 { }; =20 &riu { + rtc@6800 { + compatible =3D "mstar,ssd202d-rtc"; + reg =3D <0x6800 0x200>; + }; + smpctrl: smpctrl@204000 { reg =3D <0x204000 0x200>; status =3D "disabled"; --=20 2.39.2