ARM: dts: i.MX6: Add regulator delay support

For ANATOP LDOs, vddcpu, vddsoc and vddpu
have step time settings in the misc2 register, need
to add necessary step time info for these three LDOs,
then regulator driver can add necessary delay based on
these settings.

offset 0x170:
bit [24-25]: vddcpu
bit [26-27]: vddpu
bit [28-29]: vddsoc

field definition:
0'b00: 64 cycles of 24M clock;
0'b01: 128 cycles of 24M clock;
0'b02: 256 cycles of 24M clock;
0'b03: 512 cycles of 24M clock;

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index ec092d29440671b300d5781b50ef75e6c87fc7ce..ad10d82c616077ed2ce0f3ae3f406e58c43d5147 100644 (file)
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -487,6 +487,9 @@
                                        anatop-reg-offset = <0x140>;
                                        anatop-vol-bit-shift = <0>;
                                        anatop-vol-bit-width = <5>;
+                                       anatop-delay-reg-offset = <0x170>;
+                                       anatop-delay-bit-shift = <24>;
+                                       anatop-delay-bit-width = <2>;
                                        anatop-min-bit-val = <1>;
                                        anatop-min-voltage = <725000>;
                                        anatop-max-voltage = <1450000>;
@@ -501,6 +504,9 @@
                                        anatop-reg-offset = <0x140>;
                                        anatop-vol-bit-shift = <9>;
                                        anatop-vol-bit-width = <5>;
+                                       anatop-delay-reg-offset = <0x170>;
+                                       anatop-delay-bit-shift = <26>;
+                                       anatop-delay-bit-width = <2>;
                                        anatop-min-bit-val = <1>;
                                        anatop-min-voltage = <725000>;
                                        anatop-max-voltage = <1450000>;
@@ -515,6 +521,9 @@
                                        anatop-reg-offset = <0x140>;
                                        anatop-vol-bit-shift = <18>;
                                        anatop-vol-bit-width = <5>;
+                                       anatop-delay-reg-offset = <0x170>;
+                                       anatop-delay-bit-shift = <28>;
+                                       anatop-delay-bit-width = <2>;
                                        anatop-min-bit-val = <1>;
                                        anatop-min-voltage = <725000>;
                                        anatop-max-voltage = <1450000>;