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Tue, 08 Apr 2025 03:36:52 -0700 (PDT) Date: Tue, 8 Apr 2025 12:21:56 +0300 From: Dan Carpenter To: "Peng Fan (OSS)" Cc: Sudeep Holla , Cristian Marussi , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-kernel@vger.kernel.org, arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, devicetree@vger.kernel.org, Peng Fan Subject: Re: [PATCH v4 3/7] firmware: arm_scmi: imx: Add i.MX95 LMM protocol Message-ID: References: <20250408-imx-lmm-cpu-v4-0-4c5f4a456e49@nxp.com> <20250408-imx-lmm-cpu-v4-3-4c5f4a456e49@nxp.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250408-imx-lmm-cpu-v4-3-4c5f4a456e49@nxp.com> On Tue, Apr 08, 2025 at 04:44:27PM +0800, Peng Fan (OSS) wrote: > From: Peng Fan > > Add Logical Machine Management(LMM) protocol which is intended for boot, > shutdown, and reset of other logical machines (LM). It is usually used to > allow one LM to manager another used as an offload or accelerator engine. > > Reviewed-by: Cristian Marussi > Signed-off-by: Peng Fan > --- > drivers/firmware/arm_scmi/vendors/imx/Kconfig | 11 + > drivers/firmware/arm_scmi/vendors/imx/Makefile | 1 + > drivers/firmware/arm_scmi/vendors/imx/imx-sm-lmm.c | 262 +++++++++++++++++++++ > include/linux/scmi_imx_protocol.h | 32 +++ > 4 files changed, 306 insertions(+) > > diff --git a/drivers/firmware/arm_scmi/vendors/imx/Kconfig b/drivers/firmware/arm_scmi/vendors/imx/Kconfig > index a01bf5e47301d2f93c9bfc7eebc77e083ea4ed75..1a936fc87d2350e2a21bccd45dfbeebfa3b90286 100644 > --- a/drivers/firmware/arm_scmi/vendors/imx/Kconfig > +++ b/drivers/firmware/arm_scmi/vendors/imx/Kconfig > @@ -12,6 +12,17 @@ config IMX_SCMI_BBM_EXT > To compile this driver as a module, choose M here: the > module will be called imx-sm-bbm. > > +config IMX_SCMI_LMM_EXT > + tristate "i.MX SCMI LMM EXTENSION" > + depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF) > + default y if ARCH_MXC > + help > + This enables i.MX System Logical Machine Protocol to > + manage Logical Machines boot, shutdown and etc. > + > + To compile this driver as a module, choose M here: the > + module will be called imx-sm-lmm. > + Remind me again what happens if you have both the default and the extension modules enabled? regards, dan carpenter