From patchwork Tue Jun 8 07:57:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunfeng Yun X-Patchwork-Id: 12305623 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 BD6D5C48BDF for ; Tue, 8 Jun 2021 07:58:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A77B961287 for ; Tue, 8 Jun 2021 07:58:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231132AbhFHIAE (ORCPT ); Tue, 8 Jun 2021 04:00:04 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:49337 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S230475AbhFHIAB (ORCPT ); Tue, 8 Jun 2021 04:00:01 -0400 X-UUID: 46e9a1638e11407b8b74b780c374e03a-20210608 X-UUID: 46e9a1638e11407b8b74b780c374e03a-20210608 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1208718175; Tue, 08 Jun 2021 15:58:06 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Jun 2021 15:58:05 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 8 Jun 2021 15:58:04 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring , Felipe Balbi CC: Chunfeng Yun , Matthias Brugger , Thinh Nguyen , , , , , , Yuwen Ng , Eddie Hung Subject: [PATCH 09/23] usb: mtu3: use enum usb_role instead of private defined ones Date: Tue, 8 Jun 2021 15:57:35 +0800 Message-ID: <1623139069-8173-10-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1623139069-8173-1-git-send-email-chunfeng.yun@mediatek.com> References: <1623139069-8173-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now we mainly use usb-role-switch to set dual role mode, and all three ways supported use the same function to switch mode, use usb_role enum will make code clear Signed-off-by: Chunfeng Yun --- drivers/usb/mtu3/mtu3_dr.c | 52 +++++++++++--------------------------- 1 file changed, 15 insertions(+), 37 deletions(-) diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c index 89ad448f2b2d..7eabce9d5f3b 100644 --- a/drivers/usb/mtu3/mtu3_dr.c +++ b/drivers/usb/mtu3/mtu3_dr.c @@ -16,29 +16,6 @@ #define USB2_PORT 2 #define USB3_PORT 3 -enum mtu3_vbus_id_state { - MTU3_ID_FLOAT = 1, - MTU3_ID_GROUND, - MTU3_VBUS_OFF, - MTU3_VBUS_VALID, -}; - -static char *mailbox_state_string(enum mtu3_vbus_id_state state) -{ - switch (state) { - case MTU3_ID_FLOAT: - return "ID_FLOAT"; - case MTU3_ID_GROUND: - return "ID_GROUND"; - case MTU3_VBUS_OFF: - return "VBUS_OFF"; - case MTU3_VBUS_VALID: - return "VBUS_VALID"; - default: - return "UNKNOWN"; - } -} - static void toggle_opstate(struct ssusb_mtk *ssusb) { if (!ssusb->otg_switch.is_u3_drd) { @@ -147,31 +124,32 @@ int ssusb_set_vbus(struct otg_switch_mtk *otg_sx, int is_on) return 0; } -static void ssusb_set_mailbox(struct otg_switch_mtk *otg_sx, - enum mtu3_vbus_id_state status) +static void ssusb_set_role(struct otg_switch_mtk *otg_sx, enum usb_role role) { struct ssusb_mtk *ssusb = container_of(otg_sx, struct ssusb_mtk, otg_switch); struct mtu3 *mtu = ssusb->u3d; - dev_dbg(ssusb->dev, "mailbox %s\n", mailbox_state_string(status)); - mtu3_dbg_trace(ssusb->dev, "mailbox %s", mailbox_state_string(status)); + dev_dbg(ssusb->dev, "set role : %d\n", role); + mtu3_dbg_trace(ssusb->dev, "set role : %d", role); - switch (status) { - case MTU3_ID_GROUND: + switch (role) { + case USB_ROLE_HOST: mtu3_stop(mtu); switch_port_to_host(ssusb); ssusb_set_vbus(otg_sx, 1); ssusb->is_host = true; break; - case MTU3_ID_FLOAT: + case USB_ROLE_DEVICE: ssusb->is_host = false; ssusb_set_vbus(otg_sx, 0); switch_port_to_device(ssusb); mtu3_start(mtu); break; + case USB_ROLE_NONE: + break; default: - dev_err(ssusb->dev, "invalid state\n"); + dev_err(ssusb->dev, "invalid role\n"); } } @@ -181,13 +159,13 @@ static void ssusb_id_work(struct work_struct *work) container_of(work, struct otg_switch_mtk, id_work); if (otg_sx->id_event) - ssusb_set_mailbox(otg_sx, MTU3_ID_GROUND); + ssusb_set_role(otg_sx, USB_ROLE_HOST); else - ssusb_set_mailbox(otg_sx, MTU3_ID_FLOAT); + ssusb_set_role(otg_sx, USB_ROLE_DEVICE); } /* - * @ssusb_id_notifier is called in atomic context, but @ssusb_set_mailbox + * @ssusb_id_notifier is called in atomic context, but ssusb_set_role() * may sleep, so use work queue here */ static int ssusb_id_notifier(struct notifier_block *nb, @@ -226,7 +204,7 @@ static int ssusb_extcon_register(struct otg_switch_mtk *otg_sx) /* default as host, switch to device mode if needed */ if (extcon_get_state(edev, EXTCON_USB_HOST) == false) - ssusb_set_mailbox(otg_sx, MTU3_ID_FLOAT); + ssusb_set_role(otg_sx, USB_ROLE_DEVICE); return 0; } @@ -243,10 +221,10 @@ void ssusb_mode_switch(struct ssusb_mtk *ssusb, int to_host) if (to_host) { ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST); - ssusb_set_mailbox(otg_sx, MTU3_ID_GROUND); + ssusb_set_role(otg_sx, USB_ROLE_HOST); } else { ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_DEVICE); - ssusb_set_mailbox(otg_sx, MTU3_ID_FLOAT); + ssusb_set_role(otg_sx, USB_ROLE_DEVICE); } }