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| author | Vignesh Raghavendra <vigneshr@ti.com> | 2020-09-23 21:24:00 +0530 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2020-09-24 06:11:53 -0500 |
| commit | e25889f8f5db5e3c4edb428611329c105bfdf7cf (patch) | |
| tree | 6a90b0a5e5c7c05fa5925ad94e201c272e50ea9c /arch/arm64/boot | |
| parent | 03bfeb528772d2521abe14b2e24c9b5645dcb26f (diff) | |
| download | lwn-e25889f8f5db5e3c4edb428611329c105bfdf7cf.tar.gz lwn-e25889f8f5db5e3c4edb428611329c105bfdf7cf.zip | |
arm64: dts: ti: k3-j7200-common-proc-board: Add I2C IO expanders
Add DT nodes for I2C GPIO expanders on main_i2c0 and main_i2c1 and
also add the pinmux corresponding to these I2C instances.
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Faiz Abbas <faiz_abbas@ti.com>
Link: https://lore.kernel.org/r/20200923155400.13757-3-vigneshr@ti.com
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts index b8000dfb791c..c71b8ec1d55e 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts @@ -41,6 +41,22 @@ }; }; +&main_pmx0 { + main_i2c0_pins_default: main-i2c0-pins-default { + pinctrl-single,pins = < + J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL */ + J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA */ + >; + }; + + main_i2c1_pins_default: main-i2c1-pins-default { + pinctrl-single,pins = < + J721E_IOPAD(0xdc, PIN_INPUT_PULLUP, 3) /* (U3) ECAP0_IN_APWM_OUT.I2C1_SCL */ + J721E_IOPAD(0xe0, PIN_INPUT_PULLUP, 3) /* (T3) EXT_REFCLK1.I2C1_SDA */ + >; + }; +}; + &wkup_uart0 { /* Wakeup UART is used by System firmware */ status = "disabled"; @@ -108,3 +124,36 @@ phy-mode = "rgmii-rxid"; phy-handle = <&phy0>; }; + +&main_i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c0_pins_default>; + clock-frequency = <400000>; + + exp1: gpio@20 { + compatible = "ti,tca6416"; + reg = <0x20>; + gpio-controller; + #gpio-cells = <2>; + }; + + exp2: gpio@22 { + compatible = "ti,tca6424"; + reg = <0x22>; + gpio-controller; + #gpio-cells = <2>; + }; +}; + +&main_i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c1_pins_default>; + clock-frequency = <400000>; + + exp4: gpio@20 { + compatible = "ti,tca6408"; + reg = <0x20>; + gpio-controller; + #gpio-cells = <2>; + }; +}; |