[PATCH 2/5] ARM: bcm2835: Replace alt0/i2s_alt[02] with standard groups.

Eric Anholt eric at anholt.net
Tue Feb 23 14:21:48 PST 2016


Since all of these pins were documented, we can use their names to
explain what's going on.

Signed-off-by: Eric Anholt <eric at anholt.net>
---
 arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 17 ++++++++++-------
 arch/arm/boot/dts/bcm2835-rpi-a.dts      | 17 ++++++++++-------
 arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 17 ++++++++++-------
 arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts | 17 ++++++++++-------
 arch/arm/boot/dts/bcm2835-rpi-b.dts      | 10 +++++++++-
 arch/arm/boot/dts/bcm2835-rpi.dtsi       |  5 -----
 arch/arm/boot/dts/bcm2836-rpi-2-b.dts    | 17 ++++++++++-------
 7 files changed, 59 insertions(+), 41 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
index 228614f..0a8b92e 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -21,11 +21,14 @@
 };
 
 &gpio {
-	pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>;
-
-	/* I2S interface */
-	i2s_alt0: i2s_alt0 {
-		brcm,pins = <18 19 20 21>;
-		brcm,function = <BCM2835_FSEL_ALT0>;
-	};
+	pinctrl-0 = <&i2c0_gpio0
+		     &i2c1_gpio2
+		     &gpclk0_gpio4
+		     &gpclk1_gpio5
+		     &spi0_gpio7
+		     &pcm_gpio18
+		     &pwm0_gpio40
+		     &pwm1_gpio45
+		     &gpioout
+		     &alt3>;
 };
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts
index ddbbbbd..d093407 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts
@@ -14,11 +14,14 @@
 };
 
 &gpio {
-	pinctrl-0 = <&gpioout &alt0 &i2s_alt2 &alt3>;
-
-	/* I2S interface */
-	i2s_alt2: i2s_alt2 {
-		brcm,pins = <28 29 30 31>;
-		brcm,function = <BCM2835_FSEL_ALT2>;
-	};
+	pinctrl-0 = <&i2c0_gpio0
+		     &i2c1_gpio2
+		     &gpclk0_gpio4
+		     &gpclk1_gpio5
+		     &spi0_gpio7
+		     &pcm_gpio28
+		     &pwm0_gpio40
+		     &pwm1_gpio45
+		     &gpioout
+		     &alt3>;
 };
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
index ef54050..c26b81d 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
@@ -21,11 +21,14 @@
 };
 
 &gpio {
-	pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>;
-
-	/* I2S interface */
-	i2s_alt0: i2s_alt0 {
-		brcm,pins = <18 19 20 21>;
-		brcm,function = <BCM2835_FSEL_ALT0>;
-	};
+	pinctrl-0 = <&i2c0_gpio0
+		     &i2c1_gpio2
+		     &gpclk0_gpio4
+		     &gpclk1_gpio5
+		     &spi0_gpio7
+		     &pcm_gpio18
+		     &pwm0_gpio40
+		     &pwm1_gpio45
+		     &gpioout
+		     &alt3>;
 };
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
index 86f1f2f..a5b606e 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
@@ -14,11 +14,14 @@
 };
 
 &gpio {
-	pinctrl-0 = <&gpioout &alt0 &i2s_alt2 &alt3>;
-
-	/* I2S interface */
-	i2s_alt2: i2s_alt2 {
-		brcm,pins = <28 29 30 31>;
-		brcm,function = <BCM2835_FSEL_ALT2>;
-	};
+	pinctrl-0 = <&i2c0_gpio0
+		     &i2c1_gpio2
+		     &gpclk0_gpio4
+		     &gpclk1_gpio5
+		     &spi0_gpio7
+		     &pcm_gpio28
+		     &pwm0_gpio40
+		     &pwm1_gpio45
+		     &gpioout
+		     &alt3>;
 };
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
index 4859e9d..97e3c2f 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
@@ -14,5 +14,13 @@
 };
 
 &gpio {
-	pinctrl-0 = <&gpioout &alt0 &alt3>;
+	pinctrl-0 = <&i2c0_gpio0
+		     &i2c1_gpio2
+		     &gpclk0_gpio4
+		     &gpclk1_gpio5
+		     &spi0_gpio7
+		     &pwm0_gpio40
+		     &pwm1_gpio45
+		     &gpioout
+		     &alt3>;
 };
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 76bdbca..141b18c 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -37,11 +37,6 @@
 		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
 	};
 
-	alt0: alt0 {
-		brcm,pins = <0 1 2 3 4 5 7 8 9 10 11 14 15 40 45>;
-		brcm,function = <BCM2835_FSEL_ALT0>;
-	};
-
 	alt3: alt3 {
 		brcm,pins = <48 49 50 51 52 53>;
 		brcm,function = <BCM2835_FSEL_ALT3>;
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index ff94666..52798ca 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -25,11 +25,14 @@
 };
 
 &gpio {
-	pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>;
-
-	/* I2S interface */
-	i2s_alt0: i2s_alt0 {
-		brcm,pins = <18 19 20 21>;
-		brcm,function = <BCM2835_FSEL_ALT0>;
-	};
+	pinctrl-0 = <&i2c0_gpio0
+		     &i2c1_gpio2
+		     &gpclk0_gpio4
+		     &gpclk1_gpio5
+		     &spi0_gpio7
+		     &pcm_gpio18
+		     &pwm0_gpio40
+		     &pwm1_gpio45
+		     &gpioout
+		     &alt3>;
 };
-- 
2.7.0




More information about the linux-arm-kernel mailing list