mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-05 20:33:49 -04:00
Code Issues Packages Projects Releases Wiki Activity

ARM: dts: omap3-gta04a5: disable IrDA receiver to save power

Browse Source 
The GTA04A5 has an improved IrDA circuit that can enable/disable
the receiver individually. We do not have an IrDA driver/subsystem
and hence the receiver should be actively turned off to save power,
especially in suspend.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
H. Nikolaus Schaller
2018-07-31 09:11:31 +02:00
committed by Tony Lindgren
parent 4440f94d06
commit 43541bfa4c
1 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
arch/arm/boot/dts/omap3-gta04a5.dts
View File

@@ -25,7 +25,21 @@ pps {
};
&gpio5 {
irda_en {
gpio-hog;
gpios = <(175-160) GPIO_ACTIVE_HIGH>;
output-high; /* activate gpio_175 to disable IrDA receiver */
};
};
&omap3_pmx_core {
irda_pins: pinmux_irda {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x21d0, PIN_OUTPUT_PULLUP | MUX_MODE4) /* mcspi1_cs1 = gpio175 */
>;
};
pps_pins: pinmux_pps_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT | MUX_MODE4) /* gpin114 */