From patchwork Thu May 18 15:56:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13247017 X-Patchwork-Delegate: geert@linux-m68k.org 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 0924FC77B7A for ; Thu, 18 May 2023 15:57:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231727AbjERP5J (ORCPT ); Thu, 18 May 2023 11:57:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230476AbjERP5D (ORCPT ); Thu, 18 May 2023 11:57:03 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id CEE4BEC for ; Thu, 18 May 2023 08:57:02 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.99,285,1677510000"; d="scan'208";a="159865415" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 19 May 2023 00:57:02 +0900 Received: from localhost.localdomain (unknown [10.226.92.79]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 939F0400F7E0; Fri, 19 May 2023 00:56:59 +0900 (JST) From: Biju Das To: Yoshihiro Shimoda , Philipp Zabel Cc: Biju Das , Vinod Koul , Kishon Vijay Abraham I , linux-renesas-soc@vger.kernel.org, linux-phy@lists.infradead.org, Geert Uytterhoeven , Fabrizio Castro Subject: [PATCH RFC 3/3] phy: renesas: phy-rcar-gen3-usb2: Control VBUSEN selection Date: Thu, 18 May 2023 16:56:49 +0100 Message-Id: <20230518155649.516346-4-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230518155649.516346-1-biju.das.jz@bp.renesas.com> References: <20230518155649.516346-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org As per RZ/G2L HW(Rev.1.30 May2023) manual, VBUSEN can be controlled by the Port Power bit of the EHCI/OHCI operational register or by the VBOUT bit of the VBUS Control Register. Control VBUSEN selection such that bit is set to 0 (Port Power bit of the EHCI/OHCI operational register) for host operation and set the bit to 1 (VBOUT bit of the VBUS Control Register) for device operation. Signed-off-by: Biju Das --- drivers/phy/renesas/phy-rcar-gen3-usb2.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/phy/renesas/phy-rcar-gen3-usb2.c b/drivers/phy/renesas/phy-rcar-gen3-usb2.c index d4e2ee7e4efb..429b1d44eee7 100644 --- a/drivers/phy/renesas/phy-rcar-gen3-usb2.c +++ b/drivers/phy/renesas/phy-rcar-gen3-usb2.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #include #include #include @@ -113,6 +115,7 @@ struct rcar_gen3_chan { struct extcon_dev *extcon; struct rcar_gen3_phy rphys[NUM_OF_PHYS]; struct regulator *vbus; + struct reset_control *rstc; struct work_struct work; struct mutex lock; /* protects rphys[...].powered */ enum usb_dr_mode dr_mode; @@ -190,6 +193,7 @@ static void rcar_gen3_enable_vbus_ctrl(struct rcar_gen3_chan *ch, int vbus) dev_vdbg(ch->dev, "%s: %08x, %d\n", __func__, val, vbus); if (ch->soc_no_adp_ctrl) { + rzg2l_usbphy_ctrl_select_vbus_ctrl(ch->rstc, vbus ? 0 : 1); vbus_ctrl_reg = USB2_VBCTRL; vbus_ctrl_val = USB2_VBCTRL_VBOUT; } @@ -670,6 +674,11 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) if (IS_ERR(channel->base)) return PTR_ERR(channel->base); + channel->rstc = devm_reset_control_get_optional_shared(&pdev->dev, + NULL); + if (IS_ERR(channel->rstc)) + return PTR_ERR(channel->rstc); + channel->obint_enable_bits = USB2_OBINT_BITS; /* get irq number here and request_irq for OTG in phy_init */ channel->irq = platform_get_irq_optional(pdev, 0);