staging: dt-bindings: wilc1000: add optional rtc_clk property

Add bindings for optional rtc clock pin.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Acked-by: Ajay Singh <ajay.kathat@microchip.com>
Link: https://lore.kernel.org/r/1568037993-4646-1-git-send-email-eugen.hristev@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/wilc1000/microchip,wilc1000,sdio.txt b/drivers/staging/wilc1000/microchip,wilc1000,sdio.txt
index 4f7d1c2..da52359 100644 (file)
--- a/drivers/staging/wilc1000/microchip,wilc1000,sdio.txt
+++ b/drivers/staging/wilc1000/microchip,wilc1000,sdio.txt
@@ -10,7 +10,9 @@ Required properties:
 
 Optional:
 - bus-width    :       Number of data lines wired up the slot. Default 1 bit.
-
+- rtc_clk      :       Clock connected on the rtc clock line. Must be assigned
+                       a frequency with assigned-clocks property, and must be
+                       connected to a clock provider.
 
 Examples:
 mmc1: mmc@fc000000 {
@@ -24,6 +26,10 @@ mmc1: mmc@fc000000 {
                wilc_sdio@0 {
                        compatible = "microchip,wilc1000-sdio";
                        irq-gpios = <&pioC 27 0>;
+                       clocks = <&pck1>;
+                       clock-names = "rtc_clk";
+                       assigned-clocks = <&pck1>;
+                       assigned-clock-rates = <32768>;
                        status = "okay";
                        reg = <0>;
                        bus-width = <4>;

diff --git a/drivers/staging/wilc1000/microchip,wilc1000,spi.txt b/drivers/staging/wilc1000/microchip,wilc1000,spi.txt
index 87db87b..3423693 100644 (file)
--- a/drivers/staging/wilc1000/microchip,wilc1000,spi.txt
+++ b/drivers/staging/wilc1000/microchip,wilc1000,spi.txt
@@ -9,6 +9,10 @@ Required properties:
 - reg                  : Chip select address of device
 - irq-gpios            : Connect to a host IRQ
 
+Optional:
+- rtc_clk      :       Clock connected on the rtc clock line. Must be assigned
+                       a frequency with assigned-clocks property, and must be
+                       connected to a clock provider.
 
 Examples:
 
@@ -21,6 +25,10 @@ spi1: spi@fc018000 {
                        spi-max-frequency = <48000000>;
                        reg = <0>;
                        irq-gpios = <&pioC 27 0>;
+                       clocks = <&pck1>;
+                       clock-names = "rtc_clk";
+                       assigned-clocks = <&pck1>;
+                       assigned-clock-rates = <32768>;
                        status = "okay";
                };
 };