ARM: dts: logicpd-som-lv: Add fixed 26MHz clock as fck for twl

The board uses 26MHz oscillator for the twl4030 HFCLK. This way we will
not depend on the bootloader to configure the CFG_BOOT:HFCLK_FREQ

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/logicpd-som-lv.dtsi b/arch/arm/boot/dts/logicpd-som-lv.dtsi
index 5957943..9e49697 100644 (file)
--- a/arch/arm/boot/dts/logicpd-som-lv.dtsi
+++ b/arch/arm/boot/dts/logicpd-som-lv.dtsi
@@ -35,6 +35,13 @@
                reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; /* gpio_4 */
                #phy-cells = <0>;
        };
+
+       /* fixed 26MHz oscillator */
+       hfclk_26m: oscillator {
+               #clock-cells = <0>;
+               compatible = "fixed-clock";
+               clock-frequency = <26000000>;
+       };
 };
 
 &gpmc {
@@ -79,6 +86,8 @@
                reg = <0x48>;
                interrupts = <7>; /* SYS_NIRQ cascaded to intc */
                interrupt-parent = <&intc>;
+               clocks = <&hfclk_26m>;
+               clock-names = "fck";
                twl_audio: audio {
                        compatible = "ti,twl4030-audio";
                        codec {