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143 lines
4.8 KiB
Diff
143 lines
4.8 KiB
Diff
From 83b839b8b3a599336c2d48ab22ed919a77666476 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Mon, 26 Nov 2018 17:02:15 +0000
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Subject: [PATCH] dtoverlays: Add i2c on 0&1 option to TC358743,
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ADV7282 and OV5647
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Adds the option of configuring i2c0 to be on GPIOs 0&1 as
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this is of use on the Compute Module.
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Also fixes the ov5647 overlay where the override enabled the wrong
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fragments.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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arch/arm/boot/dts/overlays/README | 14 ++++++++++++--
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arch/arm/boot/dts/overlays/adv7282m-overlay.dts | 10 +++++++++-
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arch/arm/boot/dts/overlays/ov5647-overlay.dts | 10 +++++++++-
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arch/arm/boot/dts/overlays/tc358743-overlay.dts | 10 +++++++++-
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4 files changed, 39 insertions(+), 5 deletions(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -277,7 +277,9 @@ Info: Analog Devices ADV7282M analogue
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Uses Unicam1, which is the standard camera connector on most Pi
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variants.
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Load: dtoverlay=adv7282m,<param>=<val>
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-Params: i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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+Params: i2c_pins_0_1 Use pins 0&1 for the I2C instead of 44&45.
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+ Useful on Compute Modules.
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+ i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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This is required for Pi B+, 2, 0, and 0W.
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addr Overrides the I2C address (default 0x21)
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@@ -286,7 +288,9 @@ Name: adv728x-m
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Info: Analog Devices ADV728[0|1|2]-M analogue video to CSI2 bridges.
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This is a wrapper for adv7282m, and defaults to ADV7282M.
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Load: dtoverlay=adv728x-m,<param>=<val>
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-Params: i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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+Params: i2c_pins_0_1 Use pins 0&1 for the I2C instead of 44&45.
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+ Useful on Compute Modules.
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+ i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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This is required for Pi B+, 2, 0, and 0W.
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addr Overrides the I2C address (default 0x21)
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adv7280m Select ADV7280-M.
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@@ -1324,6 +1328,9 @@ Params: cam0-pwdn GPIO use
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configuration of the particular Pi variant in
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use.
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+ i2c_pins_0_1 Use pins 0&1 for the I2C instead of 44&45.
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+ Useful on Compute Modules.
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+
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i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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This is required for Pi B+, 2, 0, and 0W.
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@@ -1949,6 +1956,9 @@ Params: 4lane Use 4 la
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(574Mbit/s) and 486000000 (972Mbit/s - default)
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are supported by the driver.
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+ i2c_pins_0_1 Use pins 0&1 for the I2C instead of 44&45.
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+ Useful on Compute Modules.
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+
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i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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This is required for Pi B+, 2, 0, and 0W.
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--- a/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
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@@ -60,6 +60,13 @@
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};
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};
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fragment@4 {
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+ target = <&i2c0_pins>;
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+ __dormant__ {
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+ brcm,pins = <0 1>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+ };
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+ fragment@5 {
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target = <&i2c_vc>;
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__overlay__ {
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status = "okay";
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@@ -67,7 +74,8 @@
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};
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__overrides__ {
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- i2c_pins_28_29 = <0>,"+2-3";
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+ i2c_pins_0_1 = <0>,"-2-3+4";
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+ i2c_pins_28_29 = <0>,"+2-3-4";
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addr = <&adv728x>,"reg:0";
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};
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};
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--- a/arch/arm/boot/dts/overlays/ov5647-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/ov5647-overlay.dts
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@@ -69,6 +69,13 @@
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};
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};
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fragment@4 {
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+ target = <&i2c0_pins>;
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+ __dormant__ {
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+ brcm,pins = <0 1>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+ };
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+ fragment@5 {
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target = <&i2c_vc>;
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__overlay__ {
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status = "okay";
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@@ -76,7 +83,8 @@
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};
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__overrides__ {
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- i2c_pins_28_29 = <0>,"+4-5";
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+ i2c_pins_0_1 = <0>,"-2-3+4";
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+ i2c_pins_28_29 = <0>,"+2-3-4";
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cam0-pwdn = <&ov5647>,"pwdn-gpios:4";
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cam0-led = <&ov5647>,"pwdn-gpios:16";
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};
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--- a/arch/arm/boot/dts/overlays/tc358743-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/tc358743-overlay.dts
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@@ -94,6 +94,13 @@
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};
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};
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fragment@6 {
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+ target = <&i2c0_pins>;
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+ __dormant__ {
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+ brcm,pins = <0 1>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+ };
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+ fragment@7 {
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target = <&i2c_vc>;
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__overlay__ {
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status = "okay";
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@@ -101,7 +108,8 @@
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};
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__overrides__ {
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- i2c_pins_28_29 = <0>,"+4-5";
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+ i2c_pins_0_1 = <0>,"-4-5+6";
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+ i2c_pins_28_29 = <0>,"+4-5-6";
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4lane = <0>, "-2+3";
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link-frequency = <&tc358743>,"link-frequencies#0";
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};
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