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Date: Wed, 2 Feb 2022 19:14:08 +0100 From: Sam Ravnborg <sam@...nborg.org> To: nick.hawkins@....com Cc: verdun@....com, David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>, Rob Herring <robh+dt@...nel.org>, Linus Walleij <linus.walleij@...aro.org>, Bartosz Golaszewski <brgl@...ev.pl>, Corey Minyard <minyard@....org>, Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>, Miquel Raynal <miquel.raynal@...tlin.com>, Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Thierry Reding <thierry.reding@...il.com>, Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, Lee Jones <lee.jones@...aro.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Mark Brown <broonie@...nel.org>, "Rafael J. Wysocki" <rafael@...nel.org>, Daniel Lezcano <daniel.lezcano@...aro.org>, Amit Kucheria <amitk@...nel.org>, Zhang Rui <rui.zhang@...el.com>, Thomas Gleixner <tglx@...utronix.de>, Wim Van Sebroeck <wim@...ux-watchdog.org>, Guenter Roeck <linux@...ck-us.net>, Russell King <linux@...linux.org.uk>, Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>, soc@...nel.org, Shawn Guo <shawnguo@...nel.org>, Stanislav Jakubek <stano.jakubek@...il.com>, Hao Fang <fanghao11@...wei.com>, "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>, Mark Rutland <mark.rutland@....com>, Marc Zyngier <maz@...nel.org>, Ard Biesheuvel <ardb@...nel.org>, Anshuman Khandual <anshuman.khandual@....com>, Wang Kefeng <wangkefeng.wang@...wei.com>, Lukas Bulwahn <lukas.bulwahn@...il.com>, Masahiro Yamada <masahiroy@...nel.org>, dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, linux-i2c@...r.kernel.org, openipmi-developer@...ts.sourceforge.net, linux-mtd@...ts.infradead.org, netdev@...r.kernel.org, linux-pwm@...r.kernel.org, linux-serial@...r.kernel.org, linux-spi@...r.kernel.org, linux-pm@...r.kernel.org, linux-usb@...r.kernel.org, linux-watchdog@...r.kernel.org, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH] HPE BMC GXP SUPPORT Hi Nick, good to see all this stuff coming mainline, On Wed, Feb 02, 2022 at 10:52:50AM -0600, nick.hawkins@....com wrote: > From: Nick Hawkins <nick.hawkins@....com> > > GXP is the name of the HPE SoC. > This SoC is used to implement BMC features of HPE servers > (all ProLiant, Synergy, and many Apollo, and Superdome machines) > It does support many features including: > ARMv7 architecture, and it is based on a Cortex A9 core > Use an AXI bus to which > a memory controller is attached, as well as > multiple SPI interfaces to connect boot flash, > and ROM flash, a 10/100/1000 Mac engine which > supports SGMII (2 ports) and RMII > Multiple I2C engines to drive connectivity with a host infrastructure > A video engine which support VGA and DP, as well as > an hardware video encoder > Multiple PCIe ports > A PECI interface, and LPC eSPI > Multiple UART for debug purpose, and Virtual UART for host connectivity > A GPIO engine > This Patch Includes: > Documentation for device tree bindings > Device Tree Bindings > GXP Timer Support > GXP Architecture Support > > Signed-off-by: Nick Hawkins <nick.hawkins@....com> > --- > .../bindings/display/hpe,gxp-thumbnail.txt | 21 + > .../devicetree/bindings/gpio/hpe,gxp-gpio.txt | 16 + ... All new bindings must be in the DT-schema format (yaml files). This enables a lot of syntax checks and validation. We are slowly migrating away from the .txt based bindings. Also, for new bindings please follow the guide lines listed in Documentation/devicetree/bindings/submitting-patches.rst Consider including the bindings with the drivers using the bindings so things have a more natural split. Sam
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