From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D88B9C43381 for ; Mon, 1 Apr 2019 16:09:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B11DC2133D for ; Mon, 1 Apr 2019 16:09:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728818AbfDAQIy (ORCPT ); Mon, 1 Apr 2019 12:08:54 -0400 Received: from relay11.mail.gandi.net ([217.70.178.231]:50631 "EHLO relay11.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728758AbfDAQIk (ORCPT ); Mon, 1 Apr 2019 12:08:40 -0400 Received: from localhost (alyon-652-1-60-19.w109-213.abo.wanadoo.fr [109.213.83.19]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id B5887100003; Mon, 1 Apr 2019 16:08:38 +0000 (UTC) From: Alexandre Belloni To: linux-rtc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH 10/12] rtc: pcf85063: add nvram support Date: Mon, 1 Apr 2019 18:08:14 +0200 Message-Id: <20190401160816.17859-10-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190401160816.17859-1-alexandre.belloni@bootlin.com> References: <20190401160816.17859-1-alexandre.belloni@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org The pcf85063 has one byte of nvram. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-pcf85063.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c index 0ac763c10744..04aaa83a5431 100644 --- a/drivers/rtc/rtc-pcf85063.c +++ b/drivers/rtc/rtc-pcf85063.c @@ -38,6 +38,8 @@ #define PCF85063_CTRL2_AF BIT(6) #define PCF85063_CTRL2_AIE BIT(7) +#define PCF85063_REG_RAM 0x03 + #define PCF85063_REG_SC 0x04 /* datetime */ #define PCF85063_REG_SC_OS 0x80 @@ -236,6 +238,18 @@ static const struct rtc_class_ops pcf85063_rtc_ops_alarm = { .alarm_irq_enable = pcf85063_rtc_alarm_irq_enable, }; +static int pcf85063_nvmem_read(void *priv, unsigned int offset, + void *val, size_t bytes) +{ + return regmap_read(priv, PCF85063_REG_RAM, val); +} + +static int pcf85063_nvmem_write(void *priv, unsigned int offset, + void *val, size_t bytes) +{ + return regmap_write(priv, PCF85063_REG_RAM, *(u8 *)val); +} + static int pcf85063_load_capacitance(struct pcf85063 *pcf85063, const struct device_node *np, unsigned int force_cap) @@ -298,6 +312,13 @@ static int pcf85063_probe(struct i2c_client *client) int err; const struct pcf85063_config *config = &pcf85063tp_config; const void *data = of_device_get_match_data(&client->dev); + struct nvmem_config nvmem_cfg = { + .name = "pcf85063_nvram", + .reg_read = pcf85063_nvmem_read, + .reg_write = pcf85063_nvmem_write, + .type = NVMEM_TYPE_BATTERY_BACKED, + .size = 1, + }; dev_dbg(&client->dev, "%s\n", __func__); @@ -354,6 +375,9 @@ static int pcf85063_probe(struct i2c_client *client) } } + nvmem_cfg.priv = pcf85063->regmap; + rtc_nvmem_register(pcf85063->rtc, &nvmem_cfg); + return rtc_register_device(pcf85063->rtc); } -- 2.20.1