From patchwork Fri May 31 07:04:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 13681202 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 02BAF17E9; Fri, 31 May 2024 07:05:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717139149; cv=none; b=azpk618AlZqSdO/elRmJDAb5xCb7+xYabNpsyivgY8H+lmIpqyP7wRaggwSXTNC6TusBt0eoMO1glZ/G7VaZInhPty8To4xKVI+xTrSw8xMzx5Ek7sy7U98LK0ZUgs09SNtfCFXxvewQAHRdy6LSPJp6ByZN1RqmORUKqhDgX1o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717139149; c=relaxed/simple; bh=0XK0C55EsMsjaft8p7TPB4SKJqrAJ7KdyEueOggJfd4=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=FPHB8MMH+EQk3wdily91k436f7JlOSES2M+vIbW4W40/RwmBeG4gZtDuSRZpxSq+M533ko4WIo7MXAacxWc46Xz1OZ+m1bMF/Ld39Rq5RMNqBtTPVP5s2WdNBI0GDHh5v70mV1i2WOkWMPwPg0UZ5PxnqNyndLJ4Koip6EZKvro= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=aZvgQmTP; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="aZvgQmTP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1717139147; x=1748675147; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=0XK0C55EsMsjaft8p7TPB4SKJqrAJ7KdyEueOggJfd4=; b=aZvgQmTPPIExpgwagTxtmTXo9qCkjEui1ePhO3Y9zmGvoPdDItxLYDv+ 6hwZtmqfxKdpuY4WKLfJf92Rav7Y+mIuX6ZDts+BHzkiRFwCb4ywYabd4 vQW/kXyP7nGWlUl9r1jK0dnDTQ6EiVPGaZwp6AMtn9vzmsYoa+HziJ+hm WwbMac6AjSz8/Kc9BWVSxtjlDidQEIHp0jI0vfptEcEfO8JaXxjx+eha2 l3Sp8Ch/K7OKK5YnuN4/lj8B0SmHoslLmHkz9TcZPEdvoUvJSpATlc44n OR8YZHA6lWL5OZgmOY4KmsYqZEQ4d+HUU2O4WusSBaA2+EP7iMasZLaJG g==; X-CSE-ConnectionGUID: wTY4LIfiQwGiNFVRU5C2dQ== X-CSE-MsgGUID: ktTwT2CdTAmqTCWLpjIYUg== X-IronPort-AV: E=Sophos;i="6.08,203,1712646000"; d="scan'208";a="26795678" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 31 May 2024 00:05:44 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 31 May 2024 00:05:20 -0700 Received: from wendy.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Fri, 31 May 2024 00:05:18 -0700 From: Conor Dooley To: CC: , , Daire McNamara , Greg Kroah-Hartman , Rob Herring , "Krzysztof Kozlowski" , Bin Liu , , , Subject: [PATCH v1 0/2] external ulpi vbus control Date: Fri, 31 May 2024 08:04:30 +0100 Message-ID: <20240531-citable-copier-188d32c108ff@wendy> X-Mailer: git-send-email 2.43.2 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1688; i=conor.dooley@microchip.com; h=from:subject:message-id; bh=0XK0C55EsMsjaft8p7TPB4SKJqrAJ7KdyEueOggJfd4=; b=owGbwMvMwCFWscWwfUFT0iXG02pJDGmRZbVzm8UKLF4Whm/Y9qlBWsV5m9IJB+Ut66YYHZR8kHxP fgJnRykLgxgHg6yYIkvi7b4WqfV/XHY497yFmcPKBDKEgYtTACYi0svIMKl3WfyST9tOLQ5uuvhxiq 50sTRLWLt5+KeDvfH6dtnl1xgZ+gzecoold9/138Uo9byyJEE8pvTDacmMi+6zX6zwS13KDwA= X-Developer-Key: i=conor.dooley@microchip.com; a=openpgp; fpr=F9ECA03CF54F12CD01F1655722E2C55B37CF380C A customer sent me a patch adding a dt property to enable external vbus control as their phy didn't support it*. I was surprised to see that none of the other musb drivers made any use of this, but there is handling in the musb core for it - made me feel like I was missing something as to why it was not used by other drivers. I've vendor prefixed the property for now, but I figure there may well be a bunch of other potential users since this isn't just an musb thing, given that there's a snps,ulpi-ext-vbus-drv used by an xHCI IP. This is my third attempt to send these patches. I cannot find them on lore from either of my previous attempts, so I'm gonna treat this as v1. I think must've tried to send it from my kernel.org account from Microchip's corp network and that failed. Either way, apologies if this is #3 you've got from me.. * they didn't want to be identified, but said it was okay to post. CC: Conor Dooley CC: Daire McNamara CC: Greg Kroah-Hartman CC: Rob Herring CC: Krzysztof Kozlowski CC: Bin Liu CC: linux-riscv@lists.infradead.org CC: linux-usb@vger.kernel.org CC: devicetree@vger.kernel.org CC: linux-kernel@vger.kernel.org Conor Dooley (2): dt-bindings: musb: mpfs: add ULPI external vbus support usb: musb: mpfs: detect UPLI external vbus control requirement from DT .../devicetree/bindings/usb/microchip,mpfs-musb.yaml | 7 +++++++ drivers/usb/musb/mpfs.c | 2 ++ 2 files changed, 9 insertions(+)