From patchwork Tue Sep 16 15:54:03 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Heiko_St=C3=BCbner?= X-Patchwork-Id: 4918341 Return-Path: X-Original-To: patchwork-linux-rockchip@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 57D7B9F32F for ; Tue, 16 Sep 2014 15:50:31 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DF053201BA for ; Tue, 16 Sep 2014 15:52:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B03F6201DC for ; Tue, 16 Sep 2014 15:52:29 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XTv3F-0007Db-AL; Tue, 16 Sep 2014 15:52:21 +0000 Received: from gloria.sntech.de ([95.129.55.99]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XTv39-0006sh-S3 for linux-rockchip@lists.infradead.org; Tue, 16 Sep 2014 15:52:17 +0000 Received: from ip9234458b.dynamic.kabel-deutschland.de ([146.52.69.139] helo=diego.lan) by gloria.sntech.de with esmtpsa (TLS1.1:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1XTv2m-0006SA-TG; Tue, 16 Sep 2014 17:51:53 +0200 From: Heiko Stuebner To: broonie@kernel.org Subject: [PATCH v2 3/4] regulator: fan53555: add devicetree support Date: Tue, 16 Sep 2014 17:54:03 +0200 Message-Id: <1410882844-10349-4-git-send-email-heiko@sntech.de> X-Mailer: git-send-email 2.0.1 In-Reply-To: <1410882844-10349-1-git-send-email-heiko@sntech.de> References: <1410882844-10349-1-git-send-email-heiko@sntech.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140916_085216_151235_9B105EA6 X-CRM114-Status: GOOD ( 12.42 ) X-Spam-Score: -0.7 (/) Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, Heiko Stuebner , pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, galak@codeaurora.org X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add the ability to parse regulator-data from the devicetree. Signed-off-by: Heiko Stuebner --- drivers/regulator/fan53555.c | 50 ++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 46 insertions(+), 4 deletions(-) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 5808435..fb19fae 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -18,6 +18,8 @@ #include #include #include +#include +#include #include #include #include @@ -252,9 +254,39 @@ static struct regmap_config fan53555_regmap_config = { .val_bits = 8, }; +static struct fan53555_platform_data *fan53555_parse_dt(struct device *dev, + struct device_node *np) +{ + struct fan53555_platform_data *pdata; + int ret; + u32 tmp; + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return NULL; + + pdata->regulator = of_get_regulator_init_data(dev, np); + + ret = of_property_read_u32(np, "fairchild,suspend-voltage-selector", + &tmp); + if (!ret) + pdata->sleep_vsel_id = tmp; + + return pdata; +} + +static const struct of_device_id fan53555_dt_ids[] = { + { + .compatible = "fairchild,fan53555", + }, + { } +}; +MODULE_DEVICE_TABLE(of, fan53555_dt_ids); + static int fan53555_regulator_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device_node *np = client->dev.of_node; struct fan53555_device_info *di; struct fan53555_platform_data *pdata; struct regulator_config config = { }; @@ -262,6 +294,9 @@ static int fan53555_regulator_probe(struct i2c_client *client, int ret; pdata = dev_get_platdata(&client->dev); + if (!pdata) + pdata = fan53555_parse_dt(&client->dev, np); + if (!pdata || !pdata->regulator) { dev_err(&client->dev, "Platform data not found!\n"); return -ENODEV; @@ -272,11 +307,15 @@ static int fan53555_regulator_probe(struct i2c_client *client, if (!di) return -ENOMEM; - /* if no ramp constraint set, get the pdata ramp_delay */ - if (!di->regulator->constraints.ramp_delay) { - int slew_idx = (pdata->slew_rate & 0x7) ? pdata->slew_rate : 0; + if (!client->dev.of_node) { + /* if no ramp constraint set, get the pdata ramp_delay */ + if (!di->regulator->constraints.ramp_delay) { + int slew_idx = (pdata->slew_rate & 0x7) + ? pdata->slew_rate : 0; - di->regulator->constraints.ramp_delay = slew_rates[slew_idx]; + di->regulator->constraints.ramp_delay + = slew_rates[slew_idx]; + } } di->regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config); @@ -314,6 +353,8 @@ static int fan53555_regulator_probe(struct i2c_client *client, config.init_data = di->regulator; config.regmap = di->regmap; config.driver_data = di; + config.of_node = np; + ret = fan53555_regulator_register(di, &config); if (ret < 0) dev_err(&client->dev, "Failed to register regulator!\n"); @@ -329,6 +370,7 @@ static const struct i2c_device_id fan53555_id[] = { static struct i2c_driver fan53555_regulator_driver = { .driver = { .name = "fan53555-regulator", + .of_match_table = of_match_ptr(fan53555_dt_ids), }, .probe = fan53555_regulator_probe, .id_table = fan53555_id,