From patchwork Sun Jun 7 17:06:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liam Beguin X-Patchwork-Id: 1304776 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=b9mV4d36; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49g2q72GXWz9sRN for ; Mon, 8 Jun 2020 03:06:43 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726732AbgFGRGm (ORCPT ); Sun, 7 Jun 2020 13:06:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726661AbgFGRGm (ORCPT ); Sun, 7 Jun 2020 13:06:42 -0400 Received: from mail-qk1-x742.google.com (mail-qk1-x742.google.com [IPv6:2607:f8b0:4864:20::742]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E2F0C08C5C3 for ; Sun, 7 Jun 2020 10:06:42 -0700 (PDT) Received: by mail-qk1-x742.google.com with SMTP id q8so15032984qkm.12 for ; Sun, 07 Jun 2020 10:06:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=h6tnPz3vD6ei00z1shSU5wFG1bicDY0zKYMBA+QbHEY=; b=b9mV4d36Bop8n54Vauh8HvizL/jRbMLzgFA8viIwjqIHT20AnIG96vUAxyqWYk0NM3 fPCtorYsySloOX2l0Hkjm3YRVsZ9jU0Wi72sEKb5wg34uPpvEub62T0Uu+eUYYHHtSRh PNfUtnHJFNMxAIdV+zKbMnBQvyzZziQzUB+g1nZIxrEVPx7+0HL3p1FnTeIdqtVOnI+9 xpLfeckbPrKTb0cv7/gSgNJCTSrBHVjpNen1DRAnpia6gzGVvA6ASv28Zxm3MxyNB6yb gIa6aP4sfDF7uhEk/1yporBWL5j8DNeL+0zGhm1VekNBdgOvM6VByZCkvr+e+2jLM5VY nuGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=h6tnPz3vD6ei00z1shSU5wFG1bicDY0zKYMBA+QbHEY=; b=iIeT0aLxSk9+JcbFPoAMS3u1bmL7ISkqcNEiLRiuiV8LlVirA1Im5ta5AiY7Za3X90 6K+aD8C6AKSjikQWNecgLY3jfB6uCHcKW2PH+k9iYGqjiFt6KLwXbfp/QqZaxtWaTz1T zQGFhpPdBF1jAippPeUH6MhL+E/B05dNOIwJtGY4faMdQ8RBpUfsh5OoVHTIkbijUeTz pao8UuwZi8UFwrb93XJpD4qflxxpVfw/BUzlR9/VDkQsXH1lvcghjALys72VLo7pqn0v p1aaf2Ow85blXGbGUtLEt8+y2UAkcmsbPZ5p5MhESz+Nsb/N42zi4DEcy0b9jzblhNmQ uxvw== X-Gm-Message-State: AOAM5324SpYAlxKccXWpcNdnKlMkSP7yVcJrqLZ2NJIBZwPKY2Az4/iw pruVxl6m1smKQMiS685eGZhWBXbV X-Google-Smtp-Source: ABdhPJz/RxYqn2t2kJMO7X5oYdiYmWMqcAln3vCyOR8nB0WOU2K6/8HeoAxCInZVlRRhz29bxHfbpg== X-Received: by 2002:a05:620a:201b:: with SMTP id c27mr9957053qka.363.1591549601373; Sun, 07 Jun 2020 10:06:41 -0700 (PDT) Received: from localhost.localdomain (198-48-202-89.cpe.pppoe.ca. [198.48.202.89]) by smtp.gmail.com with ESMTPSA id p203sm5047088qke.132.2020.06.07.10.06.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Jun 2020 10:06:40 -0700 (PDT) From: liambeguin@gmail.com To: a.zummo@towertech.it, alexandre.belloni@bootlin.com, linux-rtc@vger.kernel.org Subject: [PATCH 1/3] rtc: pcf2127: add pca2129 device id Date: Sun, 7 Jun 2020 13:06:08 -0400 Message-Id: <20200607170610.24534-2-liambeguin@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200607170610.24534-1-liambeguin@gmail.com> References: <20200607170610.24534-1-liambeguin@gmail.com> MIME-Version: 1.0 Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org From: Liam Beguin From: Liam Beguin The PCA2129 is the automotive grade version of the PCF2129. add it to the list of compatibles. Signed-off-by: Liam Beguin --- drivers/rtc/rtc-pcf2127.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 4e50d6768f13..396a1144a213 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -546,6 +546,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, static const struct of_device_id pcf2127_of_match[] = { { .compatible = "nxp,pcf2127" }, { .compatible = "nxp,pcf2129" }, + { .compatible = "nxp,pca2129" }, {} }; MODULE_DEVICE_TABLE(of, pcf2127_of_match); @@ -656,6 +657,7 @@ static int pcf2127_i2c_probe(struct i2c_client *client, static const struct i2c_device_id pcf2127_i2c_id[] = { { "pcf2127", 1 }, { "pcf2129", 0 }, + { "pca2129", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, pcf2127_i2c_id); @@ -720,6 +722,7 @@ static int pcf2127_spi_probe(struct spi_device *spi) static const struct spi_device_id pcf2127_spi_id[] = { { "pcf2127", 1 }, { "pcf2129", 0 }, + { "pca2129", 0 }, { } }; MODULE_DEVICE_TABLE(spi, pcf2127_spi_id); From patchwork Sun Jun 7 17:06:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liam Beguin X-Patchwork-Id: 1304777 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=QdS3c87Q; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49g2qB4Cmfz9sRN for ; Mon, 8 Jun 2020 03:06:46 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726738AbgFGRGq (ORCPT ); Sun, 7 Jun 2020 13:06:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726661AbgFGRGq (ORCPT ); Sun, 7 Jun 2020 13:06:46 -0400 Received: from mail-qv1-xf44.google.com (mail-qv1-xf44.google.com [IPv6:2607:f8b0:4864:20::f44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1883C08C5C3 for ; Sun, 7 Jun 2020 10:06:45 -0700 (PDT) Received: by mail-qv1-xf44.google.com with SMTP id e20so7275688qvu.0 for ; Sun, 07 Jun 2020 10:06:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=2mma7YMkEbm1lyp0nNpDt+zye0QjNzRP1n9zZdT3EQg=; b=QdS3c87QVfoVjUqtzVwhn9WTGjCqv1hg73+8XNJkb+9Kb4iMRWPgDkPPrclCLQCM8Q d/3yQATlWWEwRC3trBB+zWla7/xQyMFS0rl4+JiL9ZqEDucrazx9s4lkDnaJR+zXU9u7 41eSeP0tWD0fAJdfqKBiozLEgUt50pJX2LJ/o85A+WPf7z/GWT+ht4TyEAquORYzJgvQ PqQqnvQLs++DugQE2D/uK3IX8YePUwtV7qxhjOJC6mRhQRoi2+8enE32PppbHeen6jUx C2yg63n7M0PUqMMxGjuEPCD1M/yBCppTDXRKwO3b1ND1rd7T0/TckjqGG7AG02et6HWD ds7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2mma7YMkEbm1lyp0nNpDt+zye0QjNzRP1n9zZdT3EQg=; b=NR7vIcvLYR2yrtP/r59Ghdc7+Nx2nxwNANqmn/F/vo0DOg+NDe5ZhA+7Pq8vvUPtxk zAgn0/A59nFAw9tYxv1xxkBQoB5+BhXK8YulMLpogrlLtvezRvuaGe+VKRwDzULkzWvl GgfXbS8y7C1m4upjPexiAkEEnCb5DcxjrDjpb+aOyeotM8qiqDyPPYgGQPM+0y+nwPVc QyMapc9j0uXv7WieoiLrQfgzk4ptiOgWW/dl7FtXeRGH8NYeqIy1soHoAOc+DHyCW11R ra7/fYKZKQmlioxopcbiUeKHXclnD5UlS9/NT5ZGdhtVzKjCqbq2XxIl/QYe+lt1t7ot 921Q== X-Gm-Message-State: AOAM532iTYssfxF7xITeU6SlE6IAqqeJ8DlJXqMkE5oS6oJOmCKoDrEY jWDazWxSsygfGrOHqUv+WNlvDo6y X-Google-Smtp-Source: ABdhPJzcHcJQpu4FtoWw9qohk9wPTpKwDPoxYLNLTufVOiJzzN7izqi23+UrsTRBoRKoCLo/xYolng== X-Received: by 2002:ad4:5551:: with SMTP id v17mr19148960qvy.89.1591549604916; Sun, 07 Jun 2020 10:06:44 -0700 (PDT) Received: from localhost.localdomain (198-48-202-89.cpe.pppoe.ca. [198.48.202.89]) by smtp.gmail.com with ESMTPSA id p203sm5047088qke.132.2020.06.07.10.06.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Jun 2020 10:06:44 -0700 (PDT) From: liambeguin@gmail.com To: a.zummo@towertech.it, alexandre.belloni@bootlin.com, linux-rtc@vger.kernel.org Subject: [PATCH 2/3] rtc: pcf2127: add alarm support Date: Sun, 7 Jun 2020 13:06:09 -0400 Message-Id: <20200607170610.24534-3-liambeguin@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200607170610.24534-1-liambeguin@gmail.com> References: <20200607170610.24534-1-liambeguin@gmail.com> MIME-Version: 1.0 Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org From: Liam Beguin From: Liam Beguin Add alarm support for the pcf2127 RTC chip family. Tested on pca2129. Signed-off-by: Liam Beguin --- drivers/rtc/rtc-pcf2127.c | 120 +++++++++++++++++++++++++++++++++++++- 1 file changed, 117 insertions(+), 3 deletions(-) diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 396a1144a213..3eeb085a7c72 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -28,7 +28,9 @@ #define PCF2127_BIT_CTRL1_TSF1 BIT(4) /* Control register 2 */ #define PCF2127_REG_CTRL2 0x01 +#define PCF2127_BIT_CTRL2_AIE BIT(1) #define PCF2127_BIT_CTRL2_TSIE BIT(2) +#define PCF2127_BIT_CTRL2_AF BIT(4) #define PCF2127_BIT_CTRL2_TSF2 BIT(5) /* Control register 3 */ #define PCF2127_REG_CTRL3 0x02 @@ -46,6 +48,12 @@ #define PCF2127_REG_DW 0x07 #define PCF2127_REG_MO 0x08 #define PCF2127_REG_YR 0x09 +/* Alarm registers */ +#define PCF2127_REG_ALARM_SC 0x0A +#define PCF2127_REG_ALARM_MN 0x0B +#define PCF2127_REG_ALARM_HR 0x0C +#define PCF2127_REG_ALARM_DM 0x0D +#define PCF2127_REG_ALARM_DW 0x0E /* Watchdog registers */ #define PCF2127_REG_WD_CTL 0x10 #define PCF2127_BIT_WD_CTL_TF0 BIT(0) @@ -185,6 +193,107 @@ static int pcf2127_rtc_set_time(struct device *dev, struct rtc_time *tm) return 0; } +static int pcf2127_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct pcf2127 *pcf2127 = dev_get_drvdata(dev); + unsigned int buf[5], ctrl2; + int ret; + + ret = regmap_read(pcf2127->regmap, PCF2127_REG_CTRL2, &ctrl2); + if (ret) { + dev_err(dev, "%s: ctrl2 read error\n", __func__); + return ret; + } + ret = regmap_bulk_read(pcf2127->regmap, PCF2127_REG_ALARM_SC, buf, 5); + if (ret) { + dev_err(dev, "%s: alarm read error\n", __func__); + return ret; + } + + alrm->enabled = ctrl2 & PCF2127_BIT_CTRL2_AIE; + alrm->pending = ctrl2 & PCF2127_BIT_CTRL2_AF; + + alrm->time.tm_sec = bcd2bin(buf[0] & 0x7F); + alrm->time.tm_min = bcd2bin(buf[1] & 0x7F); + alrm->time.tm_hour = bcd2bin(buf[2] & 0x3F); + alrm->time.tm_mday = bcd2bin(buf[3] & 0x3F); + alrm->time.tm_wday = buf[4] & 0x07; + + dev_dbg(dev, "%s: alarm is %d:%d:%d, mday=%d, wday=%d\n", __func__, + alrm->time.tm_hour, alrm->time.tm_min, alrm->time.tm_sec, + alrm->time.tm_mday, alrm->time.tm_wday); + + return 0; +} + +static int pcf2127_rtc_alarm_irq_enable(struct device *dev, u32 enable) +{ + struct pcf2127 *pcf2127 = dev_get_drvdata(dev); + unsigned int ctrl2; + int ret; + + dev_dbg(dev, "%s: %s\n", __func__, enable ? "enable" : "disable"); + + ret = regmap_read(pcf2127->regmap, PCF2127_REG_CTRL2, &ctrl2); + if (ret) { + dev_err(dev, "%s: ctrl2 read error\n", __func__); + return ret; + } + + if (enable) + ret = regmap_write(pcf2127->regmap, PCF2127_REG_CTRL2, + ctrl2 | PCF2127_BIT_CTRL2_AIE); + else + ret = regmap_write(pcf2127->regmap, PCF2127_REG_CTRL2, + ctrl2 & ~PCF2127_BIT_CTRL2_AIE); + + if (ret) { + dev_err(dev, "%s: failed to enable alarm (%d)\n", __func__, + ret); + return ret; + } + + return 0; +} + +static int pcf2127_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct pcf2127 *pcf2127 = dev_get_drvdata(dev); + unsigned int ctrl2; + uint8_t buf[5]; + int ret; + + ret = regmap_update_bits(pcf2127->regmap, PCF2127_REG_CTRL2, + PCF2127_BIT_CTRL2_AF, + (unsigned int)~PCF2127_BIT_CTRL2_AF); + if (ret) { + dev_err(dev, "%s: failed to clear alarm interrupt flag (%d)", + __func__, ret); + return ret; + } + + buf[0] = bin2bcd(alrm->time.tm_sec); + buf[1] = bin2bcd(alrm->time.tm_min); + buf[2] = bin2bcd(alrm->time.tm_hour); + buf[3] = bin2bcd(alrm->time.tm_mday); + buf[4] = (alrm->time.tm_wday & 0x07); + + dev_dbg(dev, "%s: alarm set for: %d:%d:%d, mday=%d, wday=%d\n", + __func__, alrm->time.tm_hour, alrm->time.tm_min, + alrm->time.tm_sec, alrm->time.tm_mday, alrm->time.tm_wday); + + ret = regmap_bulk_write(pcf2127->regmap, PCF2127_REG_ALARM_SC, buf, 5); + if (ret) { + dev_err(dev, "%s: failed to write alarm registers (%d)", + __func__, ret); + return ret; + } + + pcf2127_rtc_alarm_irq_enable(dev, alrm->enabled); + + return 0; +} + #ifdef CONFIG_RTC_INTF_DEV static int pcf2127_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) @@ -211,9 +320,12 @@ static int pcf2127_rtc_ioctl(struct device *dev, #endif static const struct rtc_class_ops pcf2127_rtc_ops = { - .ioctl = pcf2127_rtc_ioctl, - .read_time = pcf2127_rtc_read_time, - .set_time = pcf2127_rtc_set_time, + .ioctl = pcf2127_rtc_ioctl, + .read_time = pcf2127_rtc_read_time, + .set_time = pcf2127_rtc_set_time, + .read_alarm = pcf2127_rtc_read_alarm, + .set_alarm = pcf2127_rtc_set_alarm, + .alarm_irq_enable = pcf2127_rtc_alarm_irq_enable, }; static int pcf2127_nvmem_read(void *priv, unsigned int offset, @@ -434,6 +546,8 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, pcf2127->rtc->ops = &pcf2127_rtc_ops; + device_init_wakeup(dev, true); + pcf2127->wdd.parent = dev; pcf2127->wdd.info = &pcf2127_wdt_info; pcf2127->wdd.ops = &pcf2127_watchdog_ops; From patchwork Sun Jun 7 17:06:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liam Beguin X-Patchwork-Id: 1304778 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=qE+1EmJc; 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[198.48.202.89]) by smtp.gmail.com with ESMTPSA id p203sm5047088qke.132.2020.06.07.10.06.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Jun 2020 10:06:48 -0700 (PDT) From: liambeguin@gmail.com To: a.zummo@towertech.it, alexandre.belloni@bootlin.com, linux-rtc@vger.kernel.org Subject: [PATCH 3/3] rtc: pcf2127: reset alarm interrupt at power on Date: Sun, 7 Jun 2020 13:06:10 -0400 Message-Id: <20200607170610.24534-4-liambeguin@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200607170610.24534-1-liambeguin@gmail.com> References: <20200607170610.24534-1-liambeguin@gmail.com> MIME-Version: 1.0 Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org From: Liam Beguin From: Liam Beguin Signed-off-by: Liam Beguin --- drivers/rtc/rtc-pcf2127.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 3eeb085a7c72..f004a4030970 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -546,6 +546,14 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, pcf2127->rtc->ops = &pcf2127_rtc_ops; + ret = regmap_update_bits(pcf2127->regmap, PCF2127_REG_CTRL2, + PCF2127_BIT_CTRL2_AIE, 0); + if (ret) { + dev_err(dev, "%s: failed to clear interrupt enable bit (%d)", + __func__, ret); + return ret; + } + device_init_wakeup(dev, true); pcf2127->wdd.parent = dev;