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linux/arch/arm/boot/dts/omap4-var-om44customboard.dtsi
Tony Lindgren 3a8ed20db8 ARM: dts: Disable HDMI CEC internal pull-ups 
Devices using an external encoder, ESD protection and level shifter
such as tpd12s015 or ip4791cz12 have the CEC pull in the encoder
chip. And on var-som-om44, there is external pull up resistor R30.

So the internal CEC pull-up resistor needs to be disabled as otherwise
the external and internal pull are parallel making the pull value
much smaller than intended. This leads into the CEC not working as
reported by Hans Verkuil <hverkuil@xs4all.nl>.

Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-14 11:34:23 -07:00

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/*
* Copyright (C) 2014 Joachim Eastwood <manabian@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <dt-bindings/input/input.h>
/ {
aliases {
display0 = &hdmi0;
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&gpio_led_pins>;
led0 {
label = "var:green:led0";
gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>; /* gpio 173 */
linux,default-trigger = "heartbeat";
};
led1 {
label = "var:green:led1";
gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>; /* gpio 172 */
};
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&gpio_key_pins>;
#address-cells = <1>;
#size-cells = <0>;
user-key@184 {
label = "user";
gpios = <&gpio6 24 GPIO_ACTIVE_HIGH>; /* gpio 184 */
linux,code = <BTN_EXTRA>;
wakeup-source;
};
};
hdmi0: connector {
compatible = "hdmi-connector";
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_pins>;
label = "hdmi";
type = "a";
hpd-gpios = <&gpio2 31 GPIO_ACTIVE_HIGH>; /* gpio_63 */
port {
hdmi_connector_in: endpoint {
remote-endpoint = <&hdmi_out>;
};
};
};
};
&omap4_pmx_core {
uart1_pins: pinmux_uart1_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x13c, PIN_INPUT_PULLUP | MUX_MODE1) /* mcspi1_cs2.uart1_cts */
OMAP4_IOPAD(0x13e, PIN_OUTPUT | MUX_MODE1) /* mcspi1_cs3.uart1_rts */
OMAP4_IOPAD(0x126, PIN_INPUT_PULLUP | MUX_MODE1) /* i2c2_scl.uart1_rx */
OMAP4_IOPAD(0x128, PIN_OUTPUT | MUX_MODE1) /* i2c2_sda.uart1_tx */
>;
};
mcspi1_pins: pinmux_mcspi1_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x132, PIN_INPUT | MUX_MODE0) /* mcspi1_clk.mcspi1_clk */
OMAP4_IOPAD(0x134, PIN_INPUT | MUX_MODE0) /* mcspi1_somi.mcspi1_somi */
OMAP4_IOPAD(0x136, PIN_INPUT | MUX_MODE0) /* mcspi1_simo.mcspi1_simo */
OMAP4_IOPAD(0x138, PIN_INPUT | MUX_MODE0) /* mcspi1_cs0.mcspi1_cs0 */
>;
};
mcasp_pins: pinmux_mcsasp_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x0f8, PIN_OUTPUT | MUX_MODE2) /* mcbsp2_dr.abe_mcasp_axr */
>;
};
dss_dpi_pins: pinmux_dss_dpi_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x162, PIN_OUTPUT | MUX_MODE5) /* dispc2_data23 */
OMAP4_IOPAD(0x164, PIN_OUTPUT | MUX_MODE5) /* dispc2_data22 */
OMAP4_IOPAD(0x166, PIN_OUTPUT | MUX_MODE5) /* dispc2_data21 */
OMAP4_IOPAD(0x168, PIN_OUTPUT | MUX_MODE5) /* dispc2_data20 */
OMAP4_IOPAD(0x16a, PIN_OUTPUT | MUX_MODE5) /* dispc2_data19 */
OMAP4_IOPAD(0x16c, PIN_OUTPUT | MUX_MODE5) /* dispc2_data18 */
OMAP4_IOPAD(0x16e, PIN_OUTPUT | MUX_MODE5) /* dispc2_data15 */
OMAP4_IOPAD(0x170, PIN_OUTPUT | MUX_MODE5) /* dispc2_data14 */
OMAP4_IOPAD(0x172, PIN_OUTPUT | MUX_MODE5) /* dispc2_data13 */
OMAP4_IOPAD(0x174, PIN_OUTPUT | MUX_MODE5) /* dispc2_data12 */
OMAP4_IOPAD(0x176, PIN_OUTPUT | MUX_MODE5) /* dispc2_data11 */
OMAP4_IOPAD(0x1b4, PIN_OUTPUT | MUX_MODE5) /* dispc2_data10 */
OMAP4_IOPAD(0x1b6, PIN_OUTPUT | MUX_MODE5) /* dispc2_data9 */
OMAP4_IOPAD(0x1b8, PIN_OUTPUT | MUX_MODE5) /* dispc2_data16 */
OMAP4_IOPAD(0x1ba, PIN_OUTPUT | MUX_MODE5) /* dispc2_data17 */
OMAP4_IOPAD(0x1bc, PIN_OUTPUT | MUX_MODE5) /* dispc2_hsync */
OMAP4_IOPAD(0x1be, PIN_OUTPUT | MUX_MODE5) /* dispc2_pclk */
OMAP4_IOPAD(0x1c0, PIN_OUTPUT | MUX_MODE5) /* dispc2_vsync */
OMAP4_IOPAD(0x1c2, PIN_OUTPUT | MUX_MODE5) /* dispc2_de */
OMAP4_IOPAD(0x1c4, PIN_OUTPUT | MUX_MODE5) /* dispc2_data8 */
OMAP4_IOPAD(0x1c6, PIN_OUTPUT | MUX_MODE5) /* dispc2_data7 */
OMAP4_IOPAD(0x1c8, PIN_OUTPUT | MUX_MODE5) /* dispc2_data6 */
OMAP4_IOPAD(0x1ca, PIN_OUTPUT | MUX_MODE5) /* dispc2_data5 */
OMAP4_IOPAD(0x1cc, PIN_OUTPUT | MUX_MODE5) /* dispc2_data4 */
OMAP4_IOPAD(0x1ce, PIN_OUTPUT | MUX_MODE5) /* dispc2_data3 */
OMAP4_IOPAD(0x1d0, PIN_OUTPUT | MUX_MODE5) /* dispc2_data2 */
OMAP4_IOPAD(0x1d2, PIN_OUTPUT | MUX_MODE5) /* dispc2_data1 */
OMAP4_IOPAD(0x1d4, PIN_OUTPUT | MUX_MODE5) /* dispc2_data0 */
>;
};
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
>;
};
i2c4_pins: pinmux_i2c4_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x12e, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c4_scl */
OMAP4_IOPAD(0x130, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c4_sda */
>;
};
mmc5_pins: pinmux_mmc5_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x0f6, PIN_INPUT | MUX_MODE3) /* abe_mcbsp2_clkx.gpio_110 */
OMAP4_IOPAD(0x148, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_clk.sdmmc5_clk */
OMAP4_IOPAD(0x14a, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_cmd.sdmmc5_cmd */
OMAP4_IOPAD(0x14c, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat0.sdmmc5_dat0 */
OMAP4_IOPAD(0x14e, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat1.sdmmc5_dat1 */
OMAP4_IOPAD(0x150, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat2.sdmmc5_dat2 */
OMAP4_IOPAD(0x152, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat3.sdmmc5_dat3 */
>;
};
gpio_led_pins: pinmux_gpio_led_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x17e, PIN_OUTPUT | MUX_MODE3) /* kpd_col4.gpio_172 */
OMAP4_IOPAD(0x180, PIN_OUTPUT | MUX_MODE3) /* kpd_col5.gpio_173 */
>;
};
gpio_key_pins: pinmux_gpio_key_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x1a2, PIN_INPUT | MUX_MODE3) /* sys_boot0.gpio_184 */
>;
};
ks8851_irq_pins: pinmux_ks8851_irq_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x17c, PIN_INPUT_PULLUP | MUX_MODE3) /* kpd_col3.gpio_171 */
>;
};
hdmi_hpd_pins: pinmux_hdmi_hpd_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x098, PIN_INPUT_PULLDOWN | MUX_MODE3) /* hdmi_hpd.gpio_63 */
>;
};
backlight_pins: pinmux_backlight_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x116, PIN_OUTPUT | MUX_MODE3) /* abe_dmic_din3.gpio_122 */
>;
};
};
&i2c4 {
pinctrl-names = "default";
pinctrl-0 = <&i2c4_pins>;
clock-frequency = <400000>;
status = "okay";
};
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&uart1_pins>;
status = "okay";
};
&mcspi1 {
pinctrl-names = "default";
pinctrl-0 = <&mcspi1_pins>;
status = "okay";
eth@0 {
compatible = "ks8851";
pinctrl-names = "default";
pinctrl-0 = <&ks8851_irq_pins>;
spi-max-frequency = <24000000>;
reg = <0>;
interrupt-parent = <&gpio6>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>; /* gpio 171 */
};
};
&mmc5 {
pinctrl-names = "default";
pinctrl-0 = <&mmc5_pins>;
vmmc-supply = <&vbat>;
bus-width = <4>;
cd-gpios = <&gpio4 14 GPIO_ACTIVE_HIGH>; /* gpio 110 */
status = "okay";
};
&dss {
status = "okay";
};
&hdmi {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&dss_hdmi_pins>;
vdda-supply = <&vdac>;
port {
hdmi_out: endpoint {
remote-endpoint = <&hdmi_connector_in>;
};
};
};
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