Commit 2256e6f6 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

ARM: dts: omap4-droid4: Enable hdq for droid4 ds250x 1-wire battery nvmem



With "[PATCHv3] w1: omap-hdq: Simplify driver with PM runtime autosuspend"
we can read the droid4 battery information over 1-wire with this patch
with something like:

# modprobe omap_hdq
# hd /sys/bus/w1/devices/89-*/89-*/nvmem
...

Unfortunately the format of the battery data seems to be Motorola specific
and is currently unusable for battery charger unless somebody figures out
what it means.

Note that currently keeping omap_hdq module loaded will cause extra power
consumption as it seems to scan devices periodically.

Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Acked-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 36f808f2
......@@ -249,6 +249,13 @@
};
};
/* Battery NVRAM on 1-wire handled by w1_ds250x driver */
&hdqw1w {
pinctrl-0 = <&hdq_pins>;
pinctrl-names = "default";
ti,mode = "1w";
};
&i2c1 {
tmp105@48 {
compatible = "ti,tmp105";
......@@ -440,6 +447,13 @@
>;
};
hdq_pins: pinmux_hdq_pins {
pinctrl-single,pins = <
/* 0x4a100120 hdq_sio.hdq_sio aa27 */
OMAP4_IOPAD(0x120, PIN_INPUT | MUX_MODE0)
>;
};
/* hdmi_cec.hdmi_cec, hdmi_scl.hdmi_scl, hdmi_sda.hdmi_sda */
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
......
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