From mboxrd@z Thu Jan 1 00:00:00 1970 From: santosh.shilimkar@oracle.com Subject: Re: [PATCH v5 0/3] soc: ti: k3: Allow for exclusive and shared device requests Date: Wed, 21 Aug 2019 10:06:32 +0200 Message-ID: <226a7b55-8a4d-aa25-9392-004d5ea097e4@oracle.com> References: <20190729122453.32252-1-lokeshvutla@ti.com> <05218f41-9601-9a6c-8ac1-3bf1482e1c3d@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <05218f41-9601-9a6c-8ac1-3bf1482e1c3d@ti.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Lokesh Vutla , Nishanth Menon , Tero Kristo , Santosh Shilimkar , Rob Herring Cc: Device Tree Mailing List , Sekhar Nori , Linux ARM Mailing List List-Id: devicetree@vger.kernel.org On 8/20/19 2:48 PM, Lokesh Vutla wrote: > > > On 29/07/19 5:54 PM, Lokesh Vutla wrote: >> Sysfw provides an option for requesting exclusive access for a >> device using the flags MSG_FLAG_DEVICE_EXCLUSIVE. If this flag is >> not used, the device is meant to be shared across hosts. Once a device >> is requested from a host with this flag set, any request to this >> device from a different host will be nacked by sysfw. >> >> Current tisci firmware and pm drivers always requests for device with >> exclusive permissions set. But this is not be true for certain devices >> that are expcted to be shared across different host contexts. >> So add support for getting the shared or exclusive permissions from DT >> and request firmware accordingly. > > Gentle Ping on this series. > I can queue this up.