lkml.org 
[lkml]   [2019]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] ARM: dts: sun8i: a23/a33: Add R_I2C Controller
Date
The A23 and A33 both have an I2C controller in the ARISC domain, that share
the same pins with the RSB bus.

Even if it's an unusual configuration, that device can be used to drive the
PMIC, so let's use it.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
arch/arm/boot/dts/sun8i-a23-a33.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
index 43fe215e83ea..2eed7a2d7d7e 100644
--- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
@@ -799,6 +799,20 @@
status = "disabled";
};

+ r_i2c: i2c@1f02400 {
+ compatible = "allwinner,sun8i-a23-i2c",
+ "allwinner,sun6i-a31-i2c";
+ reg = <0x01f02400 0x400>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&r_i2c_pins>;
+ clocks = <&apb0_gates 6>;
+ resets = <&apb0_rst 6>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
r_pio: pinctrl@1f02c00 {
compatible = "allwinner,sun8i-a23-r-pinctrl";
reg = <0x01f02c00 0x400>;
@@ -811,6 +825,12 @@
#interrupt-cells = <3>;
#gpio-cells = <3>;

+ r_i2c_pins: r-i2c-pins {
+ pins = "PL0", "PL1";
+ function = "s_i2c";
+ bias-pull-up;
+ };
+
r_rsb_pins: r-rsb-pins {
pins = "PL0", "PL1";
function = "s_rsb";
--
2.20.1
\
 
 \ /
  Last update: 2019-03-18 13:56    [W:0.039 / U:1.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site