From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brian Norris Subject: Re: [PATCH v2 1/2] dt-bindings: remoteproc: qcom: Add firmware bindings for Q6V5 Date: Thu, 3 Jan 2019 15:30:15 -0800 Message-ID: <20190103233014.GA181833@google.com> References: <20181228044819.5697-1-sibis@codeaurora.org> <20181228044819.5697-2-sibis@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20181228044819.5697-2-sibis@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: Sibi Sankar Cc: bjorn.andersson@linaro.org, david.brown@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, andy.gross@linaro.org, akdwived@codeaurora.org, clew@codeaurora.org, linux-kernel@vger.kernel.org, linux-arm-msm-owner@vger.kernel.org, ohad@wizery.com, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org Hi Sibi, On Fri, Dec 28, 2018 at 10:18:18AM +0530, Sibi Sankar wrote: > Add optional "firmware-name" bindings for Q6V5 MSS and PAS based > remoteprocs. For Q6V5 MSS/PAS the two/one relative firmware > paths/path are to be listed respectively. Fallback to the default > images for mba/modem for Q6V5 MSS or the default Hexagon image > for Q6V5 PAS if the "firmware-name" binding is not present. > > Signed-off-by: Sibi Sankar > --- > Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt | 6 ++++++ > Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt | 7 +++++++ > 2 files changed, 13 insertions(+) > > diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt > index 9c0cff3a5ed8..60ee0f73071a 100644 > --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt > +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt > @@ -27,6 +27,12 @@ on the Qualcomm ADSP Hexagon core. > Value type: > Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack" > > +- firmware-name: > + Usage: optional > + Value type: > + Definition: must list the relative firmware image path for the > + Hexagon Core. Relative to what? I still think it's a terrible idea that your driver looks for files at the top-level /lib/firmware/ directory, but now you're leaking this into the device tree. This should at a bare minimum be namespaced to something like the qcom/ sub-directory. But ideally, the driver would automatically be deriving a further sub-directory of qcom/ based on the chipset or something, and then the only thing you'd describe here is some kind of variant string -- something akin to ath10k's qcom,ath10k-calibration-variant (see Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt), which doesn't require a full path-name or any hierarchy. Brian > + > - clocks: > Usage: required > Value type: > diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt > index 9ff5b0309417..3a99e7379d8c 100644 > --- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt > +++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt > @@ -36,6 +36,13 @@ on the Qualcomm Hexagon core. > Value type: > Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack" > > +- firmware-name: > + Usage: optional > + Value type: > + Definition: must list the relative firmware image paths for mba and > + modem. They are used for booting and authenticating the > + Hexagon core. > + > - clocks: > Usage: required > Value type: > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >