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Fri, 27 Oct 2023 12:27:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ta10opSz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C11E8C433CA; Fri, 27 Oct 2023 12:27:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1698409645; bh=erg1rYgP74To6KDDM1KXYV8FQqFk+IL93d/OT4RF8Iw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Ta10opSzgCPzK+RJbeKtJ7EMbjSh54GhTiZuuIcrhdyLroX493IECvCcpfvb7tmQG qk2JfMz57us1lj28G4ln6dH9FnssPpgunuDN12rQl541JYJdJL2J87Wkvyc9DyBvrm 7fVfO7+iYSNcJSfOkcWnpglQISSkfjmlfD/P3VRyobo2OqU3tcsz0Zjh/Uhv3Fb/Uq IK1Q0KN3Y3cvlCHKKU70/zP6YqhdndEkKNAS4WkdynltFe0fVootg5Bg+pIi5xVlCK 2xvXBkcDqJkOCkpPrjaENfuPjqgnmZpe2ebi1jrMhwU3z0p/S8rhl9UPtgh1VTj2/4 prrA0FqagnZMw== Date: Fri, 27 Oct 2023 17:57:11 +0530 From: Manivannan Sadhasivam To: Konrad Dybcio Cc: Mrinmay Sarkar , Manivannan Sadhasivam , agross@kernel.org, andersson@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, quic_shazhuss@quicinc.com, quic_nitegupt@quicinc.com, quic_ramkri@quicinc.com, quic_nayiluri@quicinc.com, dmitry.baryshkov@linaro.org, robh@kernel.org, quic_krichai@quicinc.com, quic_vbadigan@quicinc.com, quic_parass@quicinc.com, Bjorn Helgaas , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Kishon Vijay Abraham I , Vinod Koul , linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, mhi@lists.linux.dev, linux-phy@lists.infradead.org Subject: Re: [PATCH v3 4/5] PCI: epf-mhi: Add support for SA8775P Message-ID: <20231027122711.GB17527@thinkpad> References: <1697715430-30820-1-git-send-email-quic_msarkar@quicinc.com> <1697715430-30820-5-git-send-email-quic_msarkar@quicinc.com> <20231025075603.GD3648@thinkpad> <610b0621-b140-ee9b-c450-0fec6862c4fc@quicinc.com> Precedence: bulk X-Mailing-List: mhi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Oct 26, 2023 at 01:10:00PM +0200, Konrad Dybcio wrote: > > > On 10/26/23 07:30, Mrinmay Sarkar wrote: > > > > On 10/25/2023 1:26 PM, Manivannan Sadhasivam wrote: > > > On Thu, Oct 19, 2023 at 05:07:09PM +0530, Mrinmay Sarkar wrote: > > > > Add support for Qualcomm Snapdragon SA8775P SoC to the EPF driver. > > > > SA8775P has the PID (0x0306) and supports HDMA. Currently, it has > > > Is the PID fixed? I thought you just want to reuse the SDXxx PID in the > > > meantime. > > > > > > - Mani > > > > The PID for SA8775p EP is not decided yet. So using 0x0306 PID meantime. > If it's not decided, why should it go upstream then? Would that > not break the hosts' expectations when the EP device is updated? > No, it won't. If the device uses existing PID, then the existing host drivers matching the PID will be used for this device. When the PID gets changed, then the host drivers need to be updated too. - Mani > Konrad -- மணிவண்ணன் சதாசிவம்