[PATCH linux v1 4/4] arm: dts: Add dt-binding to support seven segment display on zaius
From: arnd@arndb.de (Arnd Bergmann)
Date: 2016-12-14 08:59:03
Also in:
linux-devicetree, lkml, openbmc
On Tuesday, December 13, 2016 11:55:04 PM CET Jaghathiswari Rankappagounder Natarajan wrote:
quoted hunk ↗ jump to hunk
Add clock, data and clear signal GPIO lines to control seven segment display on zaius platform. Signed-off-by: Jaghathiswari Rankappagounder Natarajan <redacted> --- arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts | 8 ++++++++ 1 file changed, 8 insertions(+)diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts index 8ef4ece..ccb8147 100644 --- a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts +++ b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts@@ -43,6 +43,14 @@ gpios = <&gpio ASPEED_GPIO(H, 7) GPIO_ACTIVE_LOW>; }; }; + + seven-seg-disp { + compatible = "seven-seg-gpio-dev"; + refresh-interval-ms = "1000"; + clock-gpios = <&gpio ASPEED_GPIO(J, 0) GPIO_ACTIVE_HIGH>; + data-gpios = <&gpio ASPEED_GPIO(J, 2) GPIO_ACTIVE_HIGH>; + clear-gpios = <&gpio ASPEED_GPIO(J, 1) GPIO_ACTIVE_HIGH>; + }; };
According to your introductory mail, the interface is assumed to be a 74HC164. Should we use that ID in the compatible string? We can always add other strings later if we want to support multiple wire formats. Arnd