On Mon, May 15, 2017 at 02:44:10PM +0200, Geert Uytterhoeven wrote: > Hi all, > > This patch series adds support for Renesas Salvator-X and H3ULCB > development boards equipped with revision ES2.0 of the R-Car H3 SoC. > > Our goal is to have a single kernel image supporting both ES1. and ES2.0 > revisions of the R-Car H3 SoC, and let r8a7795-salvator-x.dtb and > r8a7795-h3ulcb.dtb represent the latest production hardware. > As R-Car H3 ES1.x SoCs are pre-production revisions, the DTB files for > these revisions are renamed to r8a7795-es1-salvator-x.dtb resp. > r8a7795-es1-h3ulcb.dtb. > > While this will cause a slight inconvenience for developers using > pre-production hardware, it will make it easier to deploy production > hardware, and phase out support for pre-production hardware later. > Note that unless you need access to new features not yet described in > DT, you can keep on using the existing DTBs on pre-production hardware. > > - Patch 1 adds support for the R-Car H3 ES2.0 Soc, by providing 2 > .dtsi files: r8a7795.dtsi (ES2.0), and r8a7795-es1.dtsi (ES1.x). > - Patch 2 adds support for Salvator-X with R-Car H3 ES2.0 by providing > 2 .dts files: r8a7795-salvator-x.dts (ES2.0), and > r8a7795-es1-salvator-x.dts(ES1.x), > - Patch 3 adds support for ator-X with R-Car H3 ES2.0 by providing 2 > .dts files: r8a7795-salvator-x.dts (ES2.0), and > r8a7795-es1-salvator-x.dts(ES1.x). > > While patch 1 has no user-visible impact, patches 2 and 3 do. > > Changes compared to v3: > - Remove "/remove/overrides", as r8a7795-es1.dtsi does additions only, > - Move node and property deletion guidelines above the scissors, > - Rebase on top of r8a7795 HDMI support (but most of that is "hidden" > thanks to git's smart copy from/to patch format), > > Changes compared to v2: > - Rebase on top of common Salvator-X board support extraction, > - Remove the "compatible" property from the DU node in r8a7795.dtsi, > in addition to the "vsps" property, > - Add support for ES2.0-based H3ULCB. > > For changes compared to v1 (which was not posted), please refer to the > individual patches. > > Dependencies: > - This patch series is against renesas-devel-20170515-v4.12-rc1, > - Thanks to git's smart copy from/to patch format, it should be > applicable with and without "[PATCH 0/2] arm64: dts: salvator-x: Move > HDMI0 to common Salvator-X board support". > > This series is available in the topic/r8a7795es2-dt-v4 branch of my > renesas-drivers git repository at > git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git. > An integration branch (incl. all dependencies) for testing is provided > as topic/r8a7795es2-integration. I plan to update this branch when any > of the dependencies are updated. > > This has been tested on Salvator-X (H3 ES1.0 and ES2.0), and H3ULCB with > H3 ES1.1. > > This has not been tested on H3ULCB with H3 ES2.0 due to lack of > hardware, so perhaps you want to defer patch 3. However, adding ES2.0 > support to both boards at the same time has its advantages (e.g. to answer > the question "in which kernel version do I need a DTB with 'es1' in its > name?"). > > Thanks for applying (at least) the first two patches! Thanks, patches 1 and 2 queued up. I'd rather not take 3 until it can be tested somehow.
