From 662394fb30fdbcc89ec387918714aebee6868a9f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Wed, 4 Sep 2019 19:01:23 +0200 Subject: brcm2708: update to latest patches from RPi foundation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Álvaro Fernández Rojas --- ...dts-bcm2711-rpi-4-b-I2C-aliases-and-pulls.patch | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.19/950-0764-ARM-dts-bcm2711-rpi-4-b-I2C-aliases-and-pulls.patch (limited to 'target/linux/brcm2708/patches-4.19/950-0764-ARM-dts-bcm2711-rpi-4-b-I2C-aliases-and-pulls.patch') diff --git a/target/linux/brcm2708/patches-4.19/950-0764-ARM-dts-bcm2711-rpi-4-b-I2C-aliases-and-pulls.patch b/target/linux/brcm2708/patches-4.19/950-0764-ARM-dts-bcm2711-rpi-4-b-I2C-aliases-and-pulls.patch new file mode 100644 index 0000000000..8331a8060a --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0764-ARM-dts-bcm2711-rpi-4-b-I2C-aliases-and-pulls.patch @@ -0,0 +1,67 @@ +From 6c2628755161d04c7960f3f2fb7be1dacdda0c83 Mon Sep 17 00:00:00 2001 +From: Phil Elwell +Date: Mon, 12 Aug 2019 15:48:39 +0100 +Subject: [PATCH 764/782] ARM: dts: bcm2711-rpi-4-b: I2C aliases and pulls + +The I2C interface nodes need aliases to give them fixed bus numbers, +and setting the pulls on the GPIOs (particularly 9-13) increases the +chances of the bus working with weak or absent external pulls. + +See: https://www.raspberrypi.org/forums/posting.php?mode=reply&f=107&t=248439 + +Signed-off-by: Phil Elwell +--- + arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 10 ++++++++++ + 1 file changed, 10 insertions(+) + +--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts ++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +@@ -23,6 +23,10 @@ + mmc0 = &emmc2; + mmc1 = &mmcnr; + mmc2 = &sdhost; ++ i2c3 = &i2c3; ++ i2c4 = &i2c4; ++ i2c5 = &i2c5; ++ i2c6 = &i2c6; + /delete-property/ ethernet; + /delete-property/ intc; + ethernet0 = &genet; +@@ -207,31 +211,37 @@ + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = ; ++ brcm,pull = ; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = ; ++ brcm,pull = ; + }; + + i2c3_pins: i2c3 { + brcm,pins = <4 5>; + brcm,function = ; ++ brcm,pull = ; + }; + + i2c4_pins: i2c4 { + brcm,pins = <8 9>; + brcm,function = ; ++ brcm,pull = ; + }; + + i2c5_pins: i2c5 { + brcm,pins = <12 13>; + brcm,function = ; ++ brcm,pull = ; + }; + + i2c6_pins: i2c6 { + brcm,pins = <22 23>; + brcm,function = ; ++ brcm,pull = ; + }; + + i2s_pins: i2s { -- cgit v1.2.3