tpm: cr50: Use the correct GPIO binding

This device should use ready-gpios rather than ready-gpio. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/dts/chromebook_coral.dts b/arch/x86/dts/chromebook_coral.dts
index af52e11..d48ef35 100644
--- a/arch/x86/dts/chromebook_coral.dts
+++ b/arch/x86/dts/chromebook_coral.dts
@@ -292,7 +292,7 @@
 				reg = <0x50>;
 				compatible = "google,cr50";
 				u-boot,i2c-offset-len = <0>;
-				ready-gpio = <&gpio_n 28 GPIO_ACTIVE_LOW>;
+				ready-gpios = <&gpio_n 28 GPIO_ACTIVE_LOW>;
 				interrupts-extended = <&acpi_gpe 0x3c 0>;
 			};
 		};
diff --git a/doc/device-tree-bindings/gpio/intel,apl-gpio.txt b/doc/device-tree-bindings/gpio/intel,apl-gpio.txt
index cf0659b..8422ff6 100644
--- a/doc/device-tree-bindings/gpio/intel,apl-gpio.txt
+++ b/doc/device-tree-bindings/gpio/intel,apl-gpio.txt
@@ -47,7 +47,7 @@
 			reg = <0x50>;
 			compatible = "google,cr50";
 			u-boot,i2c-offset-len = <0>;
-			ready-gpio = <&gpio_n GPIO_28 GPIO_ACTIVE_LOW>;
+			ready-gpios = <&gpio_n GPIO_28 GPIO_ACTIVE_LOW>;
 		};
 	};
 
diff --git a/doc/device-tree-bindings/interrupt-controller/intel,acpi-gpe.txt b/doc/device-tree-bindings/interrupt-controller/intel,acpi-gpe.txt
index d9252bf..2fe02d8 100644
--- a/doc/device-tree-bindings/interrupt-controller/intel,acpi-gpe.txt
+++ b/doc/device-tree-bindings/interrupt-controller/intel,acpi-gpe.txt
@@ -25,6 +25,6 @@
 	tpm@50 {
 		reg = <0x50>;
 		compatible = "google,cr50";
-		ready-gpio = <&gpio_n 0x1c GPIO_ACTIVE_LOW>;
+		ready-gpios = <&gpio_n 0x1c GPIO_ACTIVE_LOW>;
 		interrupts-extended = <&acpi_gpe 0x3c 0>;
 	};
diff --git a/drivers/tpm/cr50_i2c.c b/drivers/tpm/cr50_i2c.c
index c1d2d2f..b67051a 100644
--- a/drivers/tpm/cr50_i2c.c
+++ b/drivers/tpm/cr50_i2c.c
@@ -607,7 +607,7 @@
 		priv->irq = irq;
 		priv->use_irq = true;
 	} else {
-		ret = gpio_request_by_name(dev, "ready-gpio", 0,
+		ret = gpio_request_by_name(dev, "ready-gpios", 0,
 					   &priv->ready_gpio, GPIOD_IS_IN);
 		if (ret) {
 			log_warning("Cr50 does not have an ready GPIO/interrupt (err=%d)\n",