From patchwork Sat Jul 30 18:04:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12933028 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1926AC19F2B for ; Sat, 30 Jul 2022 18:05:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235053AbiG3SFY (ORCPT ); Sat, 30 Jul 2022 14:05:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38236 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229742AbiG3SFW (ORCPT ); Sat, 30 Jul 2022 14:05:22 -0400 Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 148F1DFD1 for ; Sat, 30 Jul 2022 11:05:20 -0700 (PDT) Received: from tr.lan (ip-86-49-12-201.bb.vodafone.cz [86.49.12.201]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 3F20684070; Sat, 30 Jul 2022 20:05:15 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1659204317; bh=KCMJNxOlmmd5SLo7qoWefFHPanzq17ftVjmQu3yTNBE=; h=From:To:Cc:Subject:Date:From; b=KoZYATS4d8dRY709vTCu1lknXSUFze0yG5XzrFrKXxlyn2hY02HKM/9PPRtJxnV+4 0e7XLYR4wimCfR82VBZbhd/pwUayisZKTGg4dUuTv+iq2x0MpZliQFvH1Fa/yddGAS jmKshpNlelosRggvgYRd4UVSKW/MWBeeV94vH/1jAqOIsNMDShgqifWHmCa324POh3 VFr9ZFArduOX6He8lz3bSStKUtEuuD7Ah+A0W1PcWK0+NcMkR58ds9WziS93x1Tq7v 8z8dz0TEaF9ist5d2w5LgvkuVCQmrpQx1jaElR+ch57pn6cw93jMb6aY+OfqVPaFP9 /vD3XsfeeN08A== From: Marek Vasut To: linux-usb@vger.kernel.org Cc: Marek Vasut , Chanwoo Choi , Greg Kroah-Hartman , Heikki Krogerus , Yassine Oudjana Subject: [PATCH 1/2] extcon: usbc-tusb320: Factor out extcon into dedicated functions Date: Sat, 30 Jul 2022 20:04:59 +0200 Message-Id: <20220730180500.152004-1-marex@denx.de> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Move extcon code into separate functions in preparation for addition of USB TYPE-C support. No functional change. Signed-off-by: Marek Vasut Acked-by: Heikki Krogerus --- Cc: Chanwoo Choi Cc: Greg Kroah-Hartman Cc: Heikki Krogerus Cc: Yassine Oudjana To: linux-usb@vger.kernel.org --- drivers/extcon/extcon-usbc-tusb320.c | 75 +++++++++++++++++----------- 1 file changed, 46 insertions(+), 29 deletions(-) diff --git a/drivers/extcon/extcon-usbc-tusb320.c b/drivers/extcon/extcon-usbc-tusb320.c index 6ba3d89b106d0..aced4bbb455dc 100644 --- a/drivers/extcon/extcon-usbc-tusb320.c +++ b/drivers/extcon/extcon-usbc-tusb320.c @@ -184,19 +184,9 @@ static struct tusb320_ops tusb320l_ops = { .get_revision = tusb320l_get_revision, }; -static irqreturn_t tusb320_irq_handler(int irq, void *dev_id) +static void tusb320_extcon_irq_handler(struct tusb320_priv *priv, u8 reg) { - struct tusb320_priv *priv = dev_id; int state, polarity; - unsigned reg; - - if (regmap_read(priv->regmap, TUSB320_REG9, ®)) { - dev_err(priv->dev, "error during i2c read!\n"); - return IRQ_NONE; - } - - if (!(reg & TUSB320_REG9_INTERRUPT_STATUS)) - return IRQ_NONE; state = (reg >> TUSB320_REG9_ATTACHED_STATE_SHIFT) & TUSB320_REG9_ATTACHED_STATE_MASK; @@ -219,6 +209,22 @@ static irqreturn_t tusb320_irq_handler(int irq, void *dev_id) extcon_sync(priv->edev, EXTCON_USB_HOST); priv->state = state; +} + +static irqreturn_t tusb320_irq_handler(int irq, void *dev_id) +{ + struct tusb320_priv *priv = dev_id; + unsigned int reg; + + if (regmap_read(priv->regmap, TUSB320_REG9, ®)) { + dev_err(priv->dev, "error during i2c read!\n"); + return IRQ_NONE; + } + + if (!(reg & TUSB320_REG9_INTERRUPT_STATUS)) + return IRQ_NONE; + + tusb320_extcon_irq_handler(priv, reg); regmap_write(priv->regmap, TUSB320_REG9, reg); @@ -230,8 +236,32 @@ static const struct regmap_config tusb320_regmap_config = { .val_bits = 8, }; -static int tusb320_extcon_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int tusb320_extcon_probe(struct tusb320_priv *priv) +{ + int ret; + + priv->edev = devm_extcon_dev_allocate(priv->dev, tusb320_extcon_cable); + if (IS_ERR(priv->edev)) { + dev_err(priv->dev, "failed to allocate extcon device\n"); + return PTR_ERR(priv->edev); + } + + ret = devm_extcon_dev_register(priv->dev, priv->edev); + if (ret < 0) { + dev_err(priv->dev, "failed to register extcon device\n"); + return ret; + } + + extcon_set_property_capability(priv->edev, EXTCON_USB, + EXTCON_PROP_USB_TYPEC_POLARITY); + extcon_set_property_capability(priv->edev, EXTCON_USB_HOST, + EXTCON_PROP_USB_TYPEC_POLARITY); + + return 0; +} + +static int tusb320_probe(struct i2c_client *client, + const struct i2c_device_id *id) { struct tusb320_priv *priv; const void *match_data; @@ -257,12 +287,6 @@ static int tusb320_extcon_probe(struct i2c_client *client, priv->ops = (struct tusb320_ops*)match_data; - priv->edev = devm_extcon_dev_allocate(priv->dev, tusb320_extcon_cable); - if (IS_ERR(priv->edev)) { - dev_err(priv->dev, "failed to allocate extcon device\n"); - return PTR_ERR(priv->edev); - } - if (priv->ops->get_revision) { ret = priv->ops->get_revision(priv, &revision); if (ret) @@ -272,16 +296,9 @@ static int tusb320_extcon_probe(struct i2c_client *client, dev_info(priv->dev, "chip revision %d\n", revision); } - ret = devm_extcon_dev_register(priv->dev, priv->edev); - if (ret < 0) { - dev_err(priv->dev, "failed to register extcon device\n"); + ret = tusb320_extcon_probe(priv); + if (ret) return ret; - } - - extcon_set_property_capability(priv->edev, EXTCON_USB, - EXTCON_PROP_USB_TYPEC_POLARITY); - extcon_set_property_capability(priv->edev, EXTCON_USB_HOST, - EXTCON_PROP_USB_TYPEC_POLARITY); /* update initial state */ tusb320_irq_handler(client->irq, priv); @@ -313,7 +330,7 @@ static const struct of_device_id tusb320_extcon_dt_match[] = { MODULE_DEVICE_TABLE(of, tusb320_extcon_dt_match); static struct i2c_driver tusb320_extcon_driver = { - .probe = tusb320_extcon_probe, + .probe = tusb320_probe, .driver = { .name = "extcon-tusb320", .of_match_table = tusb320_extcon_dt_match,