From patchwork Tue Oct 21 15:07:01 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 5126031 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id CECAEC11AC for ; Tue, 21 Oct 2014 15:10:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7B6FF201B4 for ; Tue, 21 Oct 2014 15:10:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7DC0F200F2 for ; Tue, 21 Oct 2014 15:09:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755719AbaJUPHt (ORCPT ); Tue, 21 Oct 2014 11:07:49 -0400 Received: from ring0.de ([5.45.105.125]:53991 "EHLO ring0.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755642AbaJUPHp (ORCPT ); Tue, 21 Oct 2014 11:07:45 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 From: Sebastian Reichel To: Hans Verkuil , linux-media@vger.kernel.org Cc: Tony Lindgren , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Sebastian Reichel Subject: [RFCv2 2/8] [media] si4713: switch reset gpio to devm_gpiod API Date: Tue, 21 Oct 2014 17:07:01 +0200 Message-Id: <1413904027-16767-3-git-send-email-sre@kernel.org> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1413904027-16767-1-git-send-email-sre@kernel.org> References: <1413904027-16767-1-git-send-email-sre@kernel.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This updates the driver to use the managed gpiod interface instead of the unmanged old GPIO API. This is a preperation for the introduction of device tree support. Signed-off-by: Sebastian Reichel --- drivers/media/radio/si4713/si4713.c | 38 +++++++++++++++++-------------------- drivers/media/radio/si4713/si4713.h | 3 ++- 2 files changed, 19 insertions(+), 22 deletions(-) diff --git a/drivers/media/radio/si4713/si4713.c b/drivers/media/radio/si4713/si4713.c index b335093..e560a7e 100644 --- a/drivers/media/radio/si4713/si4713.c +++ b/drivers/media/radio/si4713/si4713.c @@ -383,9 +383,9 @@ static int si4713_powerup(struct si4713_device *sdev) } } - if (gpio_is_valid(sdev->gpio_reset)) { + if (!IS_ERR(sdev->gpio_reset)) { udelay(50); - gpio_set_value(sdev->gpio_reset, 1); + gpiod_set_value(sdev->gpio_reset, 1); } if (client->irq) @@ -407,8 +407,8 @@ static int si4713_powerup(struct si4713_device *sdev) SI4713_STC_INT | SI4713_CTS); return err; } - if (gpio_is_valid(sdev->gpio_reset)) - gpio_set_value(sdev->gpio_reset, 0); + if (!IS_ERR(sdev->gpio_reset)) + gpiod_set_value(sdev->gpio_reset, 0); if (sdev->vdd) { @@ -447,8 +447,8 @@ static int si4713_powerdown(struct si4713_device *sdev) v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n", resp[0]); v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n"); - if (gpio_is_valid(sdev->gpio_reset)) - gpio_set_value(sdev->gpio_reset, 0); + if (!IS_ERR(sdev->gpio_reset)) + gpiod_set_value(sdev->gpio_reset, 0); if (sdev->vdd) { err = regulator_disable(sdev->vdd); @@ -1457,16 +1457,17 @@ static int si4713_probe(struct i2c_client *client, goto exit; } - sdev->gpio_reset = -1; - if (pdata && gpio_is_valid(pdata->gpio_reset)) { - rval = gpio_request(pdata->gpio_reset, "si4713 reset"); - if (rval) { - dev_err(&client->dev, - "Failed to request gpio: %d\n", rval); - goto free_sdev; - } - sdev->gpio_reset = pdata->gpio_reset; - gpio_direction_output(sdev->gpio_reset, 0); + sdev->gpio_reset = devm_gpiod_get(&client->dev, "reset"); + if (!IS_ERR(sdev->gpio_reset)) { + gpiod_direction_output(sdev->gpio_reset, 0); + } else if (PTR_ERR(sdev->gpio_reset) == -ENOENT) { + dev_dbg(&client->dev, "No reset GPIO assigned\n"); + } else if (PTR_ERR(sdev->gpio_reset) == -ENOSYS) { + dev_dbg(&client->dev, "No reset GPIO support\n"); + } else { + rval = PTR_ERR(sdev->gpio_reset); + dev_err(&client->dev, "Failed to request gpio: %d\n", rval); + goto free_sdev; } sdev->vdd = devm_regulator_get_optional(&client->dev, "vdd"); @@ -1614,9 +1615,6 @@ free_irq: free_irq(client->irq, sdev); free_ctrls: v4l2_ctrl_handler_free(hdl); -free_gpio: - if (gpio_is_valid(sdev->gpio_reset)) - gpio_free(sdev->gpio_reset); free_sdev: kfree(sdev); exit: @@ -1637,8 +1635,6 @@ static int si4713_remove(struct i2c_client *client) v4l2_device_unregister_subdev(sd); v4l2_ctrl_handler_free(sd->ctrl_handler); - if (gpio_is_valid(sdev->gpio_reset)) - gpio_free(sdev->gpio_reset); kfree(sdev); return 0; diff --git a/drivers/media/radio/si4713/si4713.h b/drivers/media/radio/si4713/si4713.h index ed28ed2..7c2479f 100644 --- a/drivers/media/radio/si4713/si4713.h +++ b/drivers/media/radio/si4713/si4713.h @@ -16,6 +16,7 @@ #define SI4713_I2C_H #include +#include #include #include #include @@ -236,7 +237,7 @@ struct si4713_device { struct completion work; struct regulator *vdd; struct regulator *vio; - int gpio_reset; + struct gpio_desc *gpio_reset; u32 power_state; u32 rds_enabled; u32 frequency;