From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksij Rempel Subject: [PATCH] arm: dts: sun7i-a20-bananapi: name the GPIO lines Date: Fri, 5 Aug 2016 10:05:12 +0200 Message-ID: <1470384312-6604-1-git-send-email-linux@rempel-privat.de> References: Return-path: In-Reply-To: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: fixed-term.Oleksij.Rempel-V5te9oGctAVWk0Htik3J/w@public.gmane.org Cc: Oleksij Rempel , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Linus Walleij , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Chen-Yu Tsai List-Id: devicetree@vger.kernel.org This names the GPIO lines on the Banana Pi board in accordance with the A20_Banana_Pi v1.4 Specification. This will make these line names reflect through to userspace so that they can easily be identified and used with the new character device ABI. Some care has been taken to name all lines, not just those used by the external connectors, also lines that are muxed into some other function than GPIO: these are named "[FOO]" so that users can see with lsgpio what all lines are used for. Ps: most of the text was taken from Linux Wallej patch. Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Linus Walleij Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Cc: Chen-Yu Tsai Signed-off-by: Oleksij Rempel --- arch/arm/boot/dts/sun7i-a20-bananapi.dts | 58 ++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts index 67c8a76..81ecb89 100644 --- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts +++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts @@ -178,6 +178,64 @@ }; &pio { + /* + * Legend: proper name = the GPIO line is used as GPIO + * NC = not connected (not routed from the SoC) + * "[PER]" = pin is muxed for peripheral (not GPIO) + * "" = no idea, schematic doesn't say, could be + * unrouted (not connected to any external pin) + */ + gpio-line-names = + /* PA */ + "[ERXD3]", "[ERXD2]", "[ERXD1]", "[ERXD0]", "[ETXD3]", + "[ETXD2]", "[ETXD1]", "[ETXD0]", + "[ERXCK]", "[ERXERR]", "[ERXDV]", "[EMDC]", "[EMDIO]", + "[ETXEN]", "[ETXCK]", "[ECRS]", + "[ECOL]", "[ETXERR]", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + /* PB */ + "[PMU-SCK]", "[PMU-SDA]", "", "", "", "NC", "NC", "NC", + "NC", "USB0-DRV", "NC", "NC", "NC", "NC", "", "", + "", "", "", "", "[SCL]", "[SDA]", "", "", + "", "", "", "", "", "", "", "", + /* PC */ + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + /* PD */ + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + /* PE */ + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + /* PF */ + "[SD0-D1]", "[SD0-D0]", "[SD0-CLK]", "[SD0-CMD]", "[SD0-D3]", + "[SD0-D2]", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + /* PG */ + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + /* PH */ + "TXD0", "RXD0", "IO-1", "IO-8", "USB0-IDDET", "IO-7", "", "", + "", "", "SD0-DET", "", "", "", "", "", + "NC", "", "", "", "IO-4", "IO-5", "NC", "EMAC-PWR-EN", + "LED1", "NC", "NC", "NC", "", "", "", "", + /* PI */ + "", "", "", "[IO-GCLK]", "NC", "NC", "NC", "NC", + "NC", "NC", "[SPI-CE0]", "[SPI-CLK]", "[SPI-MOSI]", + "[SPI-MISO]", "[SPI-CE1]", "NC", + "IO-6", "IO-3", "IO-2", "IO-0", "", "", "", "", + "", "", "", "", "", "", "", ""; + usb0_id_detect_pin: usb0_id_detect_pin@0 { allwinner,pins = "PH4"; allwinner,function = "gpio_in"; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html