This adds cros_ec to exynos5420-peach-pit and exynos5800-peach-pi,
including:
* The keyboard
* The i2c tunnel
* The tps65090 under the i2c tunnel
* The battery under the i2c tunnel

To add extra motivation, it should be noted that tps65090 is one of
the things needed to get display-related FETs turned on for pit and
pi.

Note that this relies on a few outstanding changes:
* Needs "cros-ec-keyboard.dtsi" in order to compile properly.  See
  (ARM: dts: Create a cros-ec-keyboard fragment) at
  <https://patchwork.kernel.org/patch/4297451/>.
* Needs (mfd: cros_ec: spi: Fix end of transfer on devices with no
  spi-msg-delay) from this series to work properly.
* Needs (spi: s3c64xx: fix broken "cs_gpios" usage in the driver) and
  (spi: s3c64xx: for DT platofrms always get the chipselect info from
  DT node) to work properly and match the documented bindings.  See
  <https://patchwork.kernel.org/patch/4346701/> and
  <https://patchwork.kernel.org/patch/4346711/>

Signed-off-by: Doug Anderson <diand...@chromium.org>
---
 arch/arm/boot/dts/exynos5420-peach-pit.dts | 146 +++++++++++++++++++++++++++++
 arch/arm/boot/dts/exynos5800-peach-pi.dts  | 146 +++++++++++++++++++++++++++++
 2 files changed, 292 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts 
b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 1c5b8f9..67b7c32 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -25,6 +25,11 @@
                "google,pit", "google,peach","samsung,exynos5420",
                "samsung,exynos5";
 
+       aliases {
+               /* Assign 20 so we don't get confused w/ builtin ones */
+               i2c20 = "/spi@12d40000/cros-ec@0/i2c-tunnel";
+       };
+
        memory {
                reg = <0x20000000 0x80000000>;
        };
@@ -87,6 +92,13 @@
                pinctrl-0 = <&usb301_vbus_en>;
                enable-active-high;
        };
+
+       vbat: fixed-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vbat-supply";
+               regulator-boot-on;
+               regulator-always-on;
+       };
 };
 
 &pinctrl_0 {
@@ -111,6 +123,20 @@
                samsung,pin-drv = <0>;
        };
 
+       ec_irq: ec-irq {
+               samsung,pins = "gpx1-5";
+               samsung,pin-function = <0>;
+               samsung,pin-pud = <0>;
+               samsung,pin-drv = <0>;
+       };
+
+       tps65090_irq: tps65090-irq {
+               samsung,pins = "gpx2-5";
+               samsung,pin-function = <0>;
+               samsung,pin-pud = <0>;
+               samsung,pin-drv = <0>;
+       };
+
        hdmi_hpd_irq: hdmi-hpd-irq {
                samsung,pins = "gpx3-7";
                samsung,pin-function = <0>;
@@ -127,6 +153,19 @@
 };
 
 &pinctrl_3 {
+       /* Drive SPI lines at x2 for better integrity */
+       spi2-bus {
+               samsung,pin-drv = <2>;
+       };
+
+       /* Drive SPI chip select at x2 for better integrity */
+       ec_spi_cs: ec-spi-cs {
+               samsung,pins = "gpb1-2";
+               samsung,pin-function = <1>;
+               samsung,pin-pud = <0>;
+               samsung,pin-drv = <2>;
+       };
+
        usb300_vbus_en: usb300-vbus-en {
                samsung,pins = "gph0-0";
                samsung,pin-function = <1>;
@@ -189,6 +228,111 @@
        };
 };
 
+&spi_2 {
+       status = "okay";
+       num-cs = <1>;
+       samsung,spi-src-clk = <0>;
+       cs-gpios = <&gpb1 2 0>;
+
+       cros_ec: cros-ec@0 {
+               compatible = "google,cros-ec-spi";
+               interrupt-parent = <&gpx1>;
+               interrupts = <5 0>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&ec_spi_cs &ec_irq>;
+               reg = <0>;
+               spi-max-frequency = <3125000>;
+
+               controller-data {
+                       samsung,spi-feedback-delay = <1>;
+               };
+
+               i2c-tunnel {
+                       compatible = "google,cros-ec-i2c-tunnel";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       google,remote-bus = <0>;
+
+                       battery: sbs-battery@b {
+                               compatible = "sbs,sbs-battery";
+                               reg = <0xb>;
+                               sbs,poll-retry-count = <1>;
+                               sbs,i2c-retry-count = <2>;
+                       };
+
+                       power-regulator@48 {
+                               compatible = "ti,tps65090";
+                               reg = <0x48>;
+
+                               /*
+                                * Config irq to disable internal pulls
+                                * even though we run in polling mode.
+                                */
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&tps65090_irq>;
+
+                               vsys1-supply = <&vbat>;
+                               vsys2-supply = <&vbat>;
+                               vsys3-supply = <&vbat>;
+                               infet1-supply = <&vbat>;
+                               infet2-supply = <&vbat>;
+                               infet3-supply = <&vbat>;
+                               infet4-supply = <&vbat>;
+                               infet5-supply = <&vbat>;
+                               infet6-supply = <&vbat>;
+                               infet7-supply = <&vbat>;
+                               vsys-l1-supply = <&vbat>;
+                               vsys-l2-supply = <&vbat>;
+
+                               regulators {
+                                       dcdc1 {
+                                               ti,enable-ext-control;
+                                       };
+                                       dcdc2 {
+                                               ti,enable-ext-control;
+                                       };
+                                       dcdc3 {
+                                               ti,enable-ext-control;
+                                       };
+                                       fet1 {
+                                               regulator-name = "vcd_led";
+                                       };
+                                       tps65090_fet2: fet2 {
+                                               regulator-name = "video_mid";
+                                               regulator-always-on;
+                                       };
+                                       fet3 {
+                                               regulator-name = "wwan_r";
+                                               regulator-always-on;
+                                       };
+                                       fet4 {
+                                               regulator-name = "sdcard";
+                                               regulator-always-on;
+                                       };
+                                       fet5 {
+                                               regulator-name = "camout";
+                                       };
+                                       fet6 {
+                                               regulator-name = "lcd_vdd";
+                                       };
+                                       tps65090_fet7: fet7 {
+                                               regulator-name = "video_mid_1a";
+                                               regulator-always-on;
+                                       };
+                                       ldo1 {
+                                       };
+                                       ldo2 {
+                                       };
+                               };
+
+                               charger {
+                                       compatible = "ti,tps65090-charger";
+                               };
+                       };
+               };
+       };
+};
+
 &hsi2c_7 {
        status = "okay";
 
@@ -285,3 +429,5 @@
                };
        };
 };
+
+#include "cros-ec-keyboard.dtsi"
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts 
b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index f3af207..b33f548 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -23,6 +23,11 @@
                "google,pi", "google,peach", "samsung,exynos5800",
                "samsung,exynos5";
 
+       aliases {
+               /* Assign 20 so we don't get confused w/ builtin ones */
+               i2c20 = "/spi@12d40000/cros-ec@0/i2c-tunnel";
+       };
+
        memory {
                reg = <0x20000000 0x80000000>;
        };
@@ -78,6 +83,13 @@
                pinctrl-0 = <&usb301_vbus_en>;
                enable-active-high;
        };
+
+       vbat: fixed-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vbat-supply";
+               regulator-boot-on;
+               regulator-always-on;
+       };
 };
 
 &pinctrl_0 {
@@ -102,6 +114,20 @@
                samsung,pin-drv = <0>;
        };
 
+       ec_irq: ec-irq {
+               samsung,pins = "gpx1-5";
+               samsung,pin-function = <0>;
+               samsung,pin-pud = <0>;
+               samsung,pin-drv = <0>;
+       };
+
+       tps65090_irq: tps65090-irq {
+               samsung,pins = "gpx2-5";
+               samsung,pin-function = <0>;
+               samsung,pin-pud = <0>;
+               samsung,pin-drv = <0>;
+       };
+
        hdmi_hpd_irq: hdmi-hpd-irq {
                samsung,pins = "gpx3-7";
                samsung,pin-function = <0>;
@@ -111,6 +137,19 @@
 };
 
 &pinctrl_3 {
+       /* Drive SPI lines at x2 for better integrity */
+       spi2-bus {
+               samsung,pin-drv = <2>;
+       };
+
+       /* Drive SPI chip select at x2 for better integrity */
+       ec_spi_cs: ec-spi-cs {
+               samsung,pins = "gpb1-2";
+               samsung,pin-function = <1>;
+               samsung,pin-pud = <0>;
+               samsung,pin-drv = <2>;
+       };
+
        usb300_vbus_en: usb300-vbus-en {
                samsung,pins = "gph0-0";
                samsung,pin-function = <1>;
@@ -173,6 +212,111 @@
        };
 };
 
+&spi_2 {
+       status = "okay";
+       num-cs = <1>;
+       samsung,spi-src-clk = <0>;
+       cs-gpios = <&gpb1 2 0>;
+
+       cros_ec: cros-ec@0 {
+               compatible = "google,cros-ec-spi";
+               interrupt-parent = <&gpx1>;
+               interrupts = <5 0>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&ec_spi_cs &ec_irq>;
+               reg = <0>;
+               spi-max-frequency = <3125000>;
+
+               controller-data {
+                       samsung,spi-feedback-delay = <1>;
+               };
+
+               i2c-tunnel {
+                       compatible = "google,cros-ec-i2c-tunnel";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       google,remote-bus = <0>;
+
+                       battery: sbs-battery@b {
+                               compatible = "sbs,sbs-battery";
+                               reg = <0xb>;
+                               sbs,poll-retry-count = <1>;
+                               sbs,i2c-retry-count = <2>;
+                       };
+
+                       power-regulator@48 {
+                               compatible = "ti,tps65090";
+                               reg = <0x48>;
+
+                               /*
+                                * Config irq to disable internal pulls
+                                * even though we run in polling mode.
+                                */
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&tps65090_irq>;
+
+                               vsys1-supply = <&vbat>;
+                               vsys2-supply = <&vbat>;
+                               vsys3-supply = <&vbat>;
+                               infet1-supply = <&vbat>;
+                               infet2-supply = <&vbat>;
+                               infet3-supply = <&vbat>;
+                               infet4-supply = <&vbat>;
+                               infet5-supply = <&vbat>;
+                               infet6-supply = <&vbat>;
+                               infet7-supply = <&vbat>;
+                               vsys-l1-supply = <&vbat>;
+                               vsys-l2-supply = <&vbat>;
+
+                               regulators {
+                                       dcdc1 {
+                                               ti,enable-ext-control;
+                                       };
+                                       dcdc2 {
+                                               ti,enable-ext-control;
+                                       };
+                                       dcdc3 {
+                                               ti,enable-ext-control;
+                                       };
+                                       fet1 {
+                                               regulator-name = "vcd_led";
+                                       };
+                                       tps65090_fet2: fet2 {
+                                               regulator-name = "video_mid";
+                                               regulator-always-on;
+                                       };
+                                       fet3 {
+                                               regulator-name = "wwan_r";
+                                               regulator-always-on;
+                                       };
+                                       fet4 {
+                                               regulator-name = "sdcard";
+                                               regulator-always-on;
+                                       };
+                                       fet5 {
+                                               regulator-name = "camout";
+                                       };
+                                       fet6 {
+                                               regulator-name = "lcd_vdd";
+                                       };
+                                       tps65090_fet7: fet7 {
+                                               regulator-name = "video_mid_1a";
+                                               regulator-always-on;
+                                       };
+                                       ldo1 {
+                                       };
+                                       ldo2 {
+                                       };
+                               };
+
+                               charger {
+                                       compatible = "ti,tps65090-charger";
+                               };
+                       };
+               };
+       };
+};
+
 &dp {
        status = "okay";
        pinctrl-names = "default";
@@ -251,3 +395,5 @@
 &watchdog {
        timeout-sec = <32>;
 };
+
+#include "cros-ec-keyboard.dtsi"
-- 
2.0.0.526.g5318336

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