From patchwork Mon Jul 23 03:19:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Xie X-Patchwork-Id: 10539565 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 09B37174A for ; Mon, 23 Jul 2018 03:20:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E80F92858E for ; Mon, 23 Jul 2018 03:20:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DBFFA285A8; Mon, 23 Jul 2018 03:20:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.4 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_SORBS_WEB autolearn=no version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8675128614 for ; Mon, 23 Jul 2018 03:20:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=YqpckH9kOMwPIOrrR+XIy7riEa92KAv2Y9pU0eOLPkQ=; b=l/0faqUyabUNhVeAyHk7sXmhzV kzJO7tG1ZnRED/4CMHOkPxtOA7jZLQP9Ue6ST4nT5IjlrXHea7qXEyOGTo2cKgiDuOowkW/CODmJm fdl4KJ0NxhPCg+vkMUgiAz5HjfVJL3bdlHwuqrc9ALQETOmRY/KYfWJWjVtAF4N8Ir8WVtRwpVCet +NgGkLIYnkGA4G65AG+T9ipg8aPNnw2m0LjTw55v62TxXcEJQYVeR4QTG7e2fWMOMktXdOK38k+hG 7Dhgoy8t28q0XRuHdxzJkXT0G19xXuZSulmI2DLU2ywZiXSB7ApiOFStPJgLrP/9wyP0S6HY9uwlj cEq0mjHw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fhROB-0003a8-RC; Mon, 23 Jul 2018 03:19:59 +0000 Received: from lucky1.263xmail.com ([211.157.147.134]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fhRNC-0002DJ-AQ; Mon, 23 Jul 2018 03:19:02 +0000 Received: from tony.xie?rock-chips.com (unknown [192.168.167.138]) by lucky1.263xmail.com (Postfix) with ESMTP id B2FCC8F96; Mon, 23 Jul 2018 11:18:45 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 6E0ED38A; Mon, 23 Jul 2018 11:18:33 +0800 (CST) X-RL-SENDER: tony.xie@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: tony.xie@rock-chips.com X-UNIQUE-TAG: <16164efe236e66b4622e7938330c421c> X-ATTACHMENT-NUM: 0 X-SENDER: xxx@rock-chips.com X-DNS-TYPE: 0 Received: from unknown (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith SMTP id 26104LUIN29; Mon, 23 Jul 2018 11:18:42 +0800 (CST) From: Tony Xie To: heiko@sntech.de Subject: [PATCH 4/5] RTC: RK808: add RTC driver for RK809 and RK817. Date: Mon, 23 Jul 2018 11:19:04 +0800 Message-Id: <1532315945-1094-5-git-send-email-tony.xie@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1532315945-1094-1-git-send-email-tony.xie@rock-chips.com> References: <1532315945-1094-1-git-send-email-tony.xie@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180722_201859_376609_0A384041 X-CRM114-Status: GOOD ( 21.12 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rtc@vger.kernel.org, a.zummo@towertech.it, alexandre.belloni@bootlin.com, tony.xie@rock-chips.com, huangtao@rock-chips.com, devicetree@vger.kernel.org, sboyd@kernel.org, zhangqing@rock-chips.com, linux-kernel@vger.kernel.org, xsf@rock-chips.com, linux-rockchip@lists.infradead.org, broonie@kernel.org, lee.jones@linaro.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, chenjh@rock-chips.com MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP RK809 and RK817 are power management IC chips for multimedia products. Most of their functions and registers are same, including the rtc. Signed-off-by: Tony Xie Acked-by: Alexandre Belloni --- drivers/rtc/Kconfig | 4 +-- drivers/rtc/rtc-rk808.c | 68 +++++++++++++++++++++++++++++++++++++++---------- 2 files changed, 56 insertions(+), 16 deletions(-) diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index a2ba5db..1aaf935 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -371,11 +371,11 @@ config RTC_DRV_MAX77686 will be called rtc-max77686. config RTC_DRV_RK808 - tristate "Rockchip RK805/RK808/RK818 RTC" + tristate "Rockchip RK805/RK808/RK809/RK817/RK818 RTC" depends on MFD_RK808 help If you say yes here you will get support for the - RTC of RK805, RK808 and RK818 PMIC. + RTC of RK805, RK809 and RK817, RK808 and RK818 PMIC. This driver can also be built as a module. If so, the module will be called rk808-rtc. diff --git a/drivers/rtc/rtc-rk808.c b/drivers/rtc/rtc-rk808.c index 739c0d4..5bacdaf 100644 --- a/drivers/rtc/rtc-rk808.c +++ b/drivers/rtc/rtc-rk808.c @@ -50,9 +50,18 @@ #define NUM_TIME_REGS (RK808_WEEKS_REG - RK808_SECONDS_REG + 1) #define NUM_ALARM_REGS (RK808_ALARM_YEARS_REG - RK808_ALARM_SECONDS_REG + 1) +struct rk_rtc_compat_reg { + unsigned int ctrl_reg; + unsigned int status_reg; + unsigned int alarm_seconds_reg; + unsigned int int_reg; + unsigned int seconds_reg; +}; + struct rk808_rtc { struct rk808 *rk808; struct rtc_device *rtc; + struct rk_rtc_compat_reg *creg; int irq; }; @@ -101,7 +110,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm) int ret; /* Force an update of the shadowed registers right now */ - ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG, + ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg, BIT_RTC_CTRL_REG_RTC_GET_TIME, BIT_RTC_CTRL_REG_RTC_GET_TIME); if (ret) { @@ -115,7 +124,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm) * 32khz. If we clear the GET_TIME bit here, the time of i2c transfer * certainly more than 31.25us: 16 * 2.5us at 400kHz bus frequency. */ - ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG, + ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg, BIT_RTC_CTRL_REG_RTC_GET_TIME, 0); if (ret) { @@ -123,7 +132,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm) return ret; } - ret = regmap_bulk_read(rk808->regmap, RK808_SECONDS_REG, + ret = regmap_bulk_read(rk808->regmap, rk808_rtc->creg->seconds_reg, rtc_data, NUM_TIME_REGS); if (ret) { dev_err(dev, "Failed to bulk read rtc_data: %d\n", ret); @@ -166,7 +175,7 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm) rtc_data[6] = bin2bcd(tm->tm_wday); /* Stop RTC while updating the RTC registers */ - ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG, + ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg, BIT_RTC_CTRL_REG_STOP_RTC_M, BIT_RTC_CTRL_REG_STOP_RTC_M); if (ret) { @@ -174,14 +183,14 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm) return ret; } - ret = regmap_bulk_write(rk808->regmap, RK808_SECONDS_REG, + ret = regmap_bulk_write(rk808->regmap, rk808_rtc->creg->seconds_reg, rtc_data, NUM_TIME_REGS); if (ret) { dev_err(dev, "Failed to bull write rtc_data: %d\n", ret); return ret; } /* Start RTC again */ - ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG, + ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg, BIT_RTC_CTRL_REG_STOP_RTC_M, 0); if (ret) { dev_err(dev, "Failed to update RTC control: %d\n", ret); @@ -199,8 +208,13 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) uint32_t int_reg; int ret; - ret = regmap_bulk_read(rk808->regmap, RK808_ALARM_SECONDS_REG, + ret = regmap_bulk_read(rk808->regmap, + rk808_rtc->creg->alarm_seconds_reg, alrm_data, NUM_ALARM_REGS); + if (ret) { + dev_err(dev, "Failed to read RTC alarm date REG: %d\n", ret); + return ret; + } alrm->time.tm_sec = bcd2bin(alrm_data[0] & SECONDS_REG_MSK); alrm->time.tm_min = bcd2bin(alrm_data[1] & MINUTES_REG_MAK); @@ -210,7 +224,7 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) alrm->time.tm_year = (bcd2bin(alrm_data[5] & YEARS_REG_MSK)) + 100; rockchip_to_gregorian(&alrm->time); - ret = regmap_read(rk808->regmap, RK808_RTC_INT_REG, &int_reg); + ret = regmap_read(rk808->regmap, rk808_rtc->creg->int_reg, &int_reg); if (ret) { dev_err(dev, "Failed to read RTC INT REG: %d\n", ret); return ret; @@ -231,7 +245,7 @@ static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc) struct rk808 *rk808 = rk808_rtc->rk808; int ret; - ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG, + ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->int_reg, BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, 0); return ret; @@ -242,7 +256,7 @@ static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc) struct rk808 *rk808 = rk808_rtc->rk808; int ret; - ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG, + ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->int_reg, BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, BIT_RTC_INTERRUPTS_REG_IT_ALARM_M); @@ -274,7 +288,8 @@ static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) alrm_data[4] = bin2bcd(alrm->time.tm_mon + 1); alrm_data[5] = bin2bcd(alrm->time.tm_year - 100); - ret = regmap_bulk_write(rk808->regmap, RK808_ALARM_SECONDS_REG, + ret = regmap_bulk_write(rk808->regmap, + rk808_rtc->creg->alarm_seconds_reg, alrm_data, NUM_ALARM_REGS); if (ret) { dev_err(dev, "Failed to bulk write: %d\n", ret); @@ -318,7 +333,7 @@ static irqreturn_t rk808_alarm_irq(int irq, void *data) struct i2c_client *client = rk808->i2c; int ret; - ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG, + ret = regmap_write(rk808->regmap, rk808_rtc->creg->status_reg, RTC_STATUS_MASK); if (ret) { dev_err(&client->dev, @@ -371,6 +386,22 @@ static int rk808_rtc_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(rk808_rtc_pm_ops, rk808_rtc_suspend, rk808_rtc_resume); +static struct rk_rtc_compat_reg rk808_creg = { + .ctrl_reg = RK808_RTC_CTRL_REG, + .status_reg = RK808_RTC_STATUS_REG, + .alarm_seconds_reg = RK808_ALARM_SECONDS_REG, + .int_reg = RK808_RTC_INT_REG, + .seconds_reg = RK808_SECONDS_REG, +}; + +static struct rk_rtc_compat_reg rk817_creg = { + .ctrl_reg = RK817_RTC_CTRL_REG, + .status_reg = RK817_RTC_STATUS_REG, + .alarm_seconds_reg = RK817_ALARM_SECONDS_REG, + .int_reg = RK817_RTC_INT_REG, + .seconds_reg = RK817_SECONDS_REG, +}; + static int rk808_rtc_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); @@ -381,11 +412,20 @@ static int rk808_rtc_probe(struct platform_device *pdev) if (rk808_rtc == NULL) return -ENOMEM; + switch (rk808->variant) { + case RK809_ID: + case RK817_ID: + rk808_rtc->creg = &rk817_creg; + break; + default: + rk808_rtc->creg = &rk808_creg; + break; + } platform_set_drvdata(pdev, rk808_rtc); rk808_rtc->rk808 = rk808; /* start rtc running by default, and use shadowed timer. */ - ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG, + ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg, BIT_RTC_CTRL_REG_STOP_RTC_M | BIT_RTC_CTRL_REG_RTC_READSEL_M, BIT_RTC_CTRL_REG_RTC_READSEL_M); @@ -395,7 +435,7 @@ static int rk808_rtc_probe(struct platform_device *pdev) return ret; } - ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG, + ret = regmap_write(rk808->regmap, rk808_rtc->creg->status_reg, RTC_STATUS_MASK); if (ret) { dev_err(&pdev->dev,