From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawnguo@kernel.org (Shawn Guo) Date: Mon, 5 Feb 2018 16:45:06 +0800 Subject: [PATCH v2 2/4] arm64: add basic DTS for i.MX8MQ In-Reply-To: References: <20180201183126.32384-1-l.stach@pengutronix.de> <20180201183126.32384-2-l.stach@pengutronix.de> Message-ID: <20180205084505.GV31354@dragon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Feb 02, 2018 at 08:13:56AM +0000, Jacky Bai wrote: > > Subject: [PATCH v2 2/4] arm64: add basic DTS for i.MX8MQ > > > > This adds the basic DTS for the i.MX8MQ. > > For now only the following peripherals are supported: > > - IOMUXC (pin controller) > > - CCM (clock controller) > > - GPIO > > - UART > > - uSDHC (SD/eMMC controller) > > - FEC (ethernet controller) > > - i2c > > > > This is enough to get a very basic board support up and running. > > > > One known limitation is that the driver for the GPC interrupt > > controller is still missing, rendering the CPU sleep states unusable > > as there is nothing waking them up anymore. This will be fixed in > > due course. > > > > The cpu sleep states can NOT be supported in community kernel due to hardware limitation. Jacky, Can you elaborate your comment a bit? If it's a hardware limitation, I guess not only community but also vendor kernel has no way to support sleep states, right? Shawn