From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Horman Date: Wed, 14 Jan 2015 23:55:10 +0000 Subject: Re: [PATCH 0/4] ARM: shmobile: Add DT support for memory controllers Message-Id: <20150114235509.GD10479@verge.net.au> List-Id: References: <1421233982-15883-1-git-send-email-geert+renesas@glider.be> In-Reply-To: <1421233982-15883-1-git-send-email-geert+renesas@glider.be> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On Wed, Jan 14, 2015 at 12:12:58PM +0100, Geert Uytterhoeven wrote: > Hi Simon, Magnus, > > This patch series adds DT binding documentation and devices nodes to > describe memory-controllers in R-Mobile and SH-Mobile SoCs. > > Currently memory controller device nodes are used only to reference PM > domains, and prevent these PM domains from being powered down, which > would crash the system. > > As such this series is a prerequisite for adding DT PM domain support to > sh73a0 (SH-Mobile AG5) and r7a73a4 (R-Mobile APE6). > For r8a7740 (R-Mobile A1), this wasn't a hard prerequisite for PM > domain support, as the A4S PM domain is never turned off anyway > because its child PM domain A3SM contains the CPU core. > > The patches for sh73a0 and r8a7740 have been sent before as part of > (patches in) the series "[PATCH RFC 0/7] ARM: shmobile: sh73a0: DT PM > domain support" (https://lkml.org/lkml/2014/11/19/404). > > "ARM: shmobile: r8a7740 dtsi: Add memory-controller node" depends on > the DT R-Mobile PM Domain support for r8a7740 that's queued up in > Simon's tree under tag renesas-dt-pm-for-v3.20, as the > memory-controller node already contains a power-domains property. > > The two other dtsi patches do not add power-domains properties yet. > These will be added when adding PM domain support for sh73a0 resp. > r8a73a4. > > Thanks! Thanks Geert, I have queued these up.