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Wed, 4 Apr 2018 04:01:37 -0400 Received: from mga06.intel.com ([134.134.136.31]:33542 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750736AbeDDIBg (ORCPT ); Wed, 4 Apr 2018 04:01:36 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,405,1517904000"; d="scan'208";a="43879302" From: Felipe Balbi To: Masahiro Yamada , Kishon Vijay Abraham I Cc: linux-usb@vger.kernel.org, Lee Jones , Arnd Bergmann , Rob Herring , devicetree@vger.kernel.org, Andrew Lunn , Masami Hiramatsu , Jassi Brar , Kunihiko Hayashi , Linux Kernel Mailing List , Mathias Nyman Subject: Re: Multiple generic PHY instances for DWC3 USB IP In-Reply-To: References: <87vad7cz2i.fsf@linux.intel.com> <87po3fcxs4.fsf@linux.intel.com> Date: Wed, 04 Apr 2018 11:00:54 +0300 Message-ID: <87woxns8nd.fsf@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-usb-owner@vger.kernel.org X-Mailing-List: linux-usb@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Hi, Masahiro Yamada writes: >>> Each DWC3 instance is connected with >>> multiple HS PHYs and multiple SS PHYs, >>> depending on the number of ports. >> >> in that case, you shouldn't need dwc3 at all. A Host-only dwc3 is xHCI >> compliant. If you really don't have the gadget block, there's no need >> for you to use dwc3. Just use xhci-plat directly. > > Sorry, I was misunderstanding. > > Some of our SoCs support gadget, > so we need to use the dwc3 driver. fair enough. Now we need to figure out how to pass multiply PHYs to a multi-port dwc3 instance. Kishon, any ideas? How do you think DT should look like? -- balbi