ARM: dts: imx7s: add snvs rtc clock

Add i.MX7 SNVS RTC clock.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
index 76aec8a3724d62120392be98cd093acd0f4015b5..3c1f3a229eab82be613b619961e41de4087262b1 100644 (file)
--- a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
+++ b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
@@ -415,12 +415,27 @@ Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node
        value type: <u32>
        Definition: LP register offset. default it is 0x34.
 
+   - clocks
+      Usage: optional, required if SNVS LP RTC requires explicit
+          enablement of clocks
+      Value type: <prop_encoded-array>
+      Definition:  a clock specifier describing the clock required for
+          enabling and disabling SNVS LP RTC.
+
+   - clock-names
+      Usage: optional, required if SNVS LP RTC requires explicit
+          enablement of clocks
+      Value type: <string>
+      Definition: clock name string should be "snvs-rtc".
+
 EXAMPLE
        sec_mon_rtc_lp@1 {
                compatible = "fsl,sec-v4.0-mon-rtc-lp";
                interrupts = <93 2>;
                regmap = <&snvs>;
                offset = <0x34>;
+               clocks = <&clks IMX7D_SNVS_CLK>;
+               clock-names = "snvs-rtc";
        };
 
 =====================================================================
@@ -543,6 +558,8 @@ FULL EXAMPLE
                        regmap = <&sec_mon>;
                        offset = <0x34>;
                        interrupts = <93 2>;
+                       clocks = <&clks IMX7D_SNVS_CLK>;
+                       clock-names = "snvs-rtc";
                };
 
                snvs-pwrkey@020cc000 {

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 9aa2bb998552b78f3b9875ee570aec1496ba0fab..02baf425b1ac866f0b234a4b96aca9670fbaa380 100644 (file)
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -551,6 +551,8 @@ snvs_rtc: snvs-rtc-lp {
                                        offset = <0x34>;
                                        interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
                                                     <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+                                       clocks = <&clks IMX7D_SNVS_CLK>;
+                                       clock-names = "snvs-rtc";
                                };
 
                                snvs_poweroff: snvs-poweroff {