From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: Re: [PATCH v4 0/5] soc: ti: k3: Allow for exclusive and shared device requests Date: Tue, 23 Jul 2019 06:42:13 -0500 Message-ID: <20190723114213.ogypuwcp3mw3vmcn@kahuna> References: <20190722050757.29893-1-lokeshvutla@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20190722050757.29893-1-lokeshvutla@ti.com> 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 Cc: Device Tree Mailing List , Sekhar Nori , Tero Kristo , Rob Herring , Santosh Shilimkar , Linux ARM Mailing List List-Id: devicetree@vger.kernel.org On 10:37-20190722, 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. > > Changes since v3: https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=103447 > - Rebased on top of v5.3-rc1 > - Updated power-domain cells for j721e. > - Mark the console uart as shared in am65x-base-board > - Added Reviewed-by from Rob [...] Looks good to me. Reviewed-by: Nishanth Menon -- Regards, Nishanth Menon