On Tuesday, December 13, 2016 11:55:04 PM CET Jaghathiswari Rankappagounder
Natarajan wrote:
> Add clock, data and clear signal GPIO lines to control seven segment display
> on
> zaius platform.
>
> Signed-off-by: Jaghathiswari Rankappagounder Natarajan <ja...@google.com>
> ---
> 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
