Hi Anand,
On 19/10/2022 11:48, Anand Moon wrote:
Hi Martin,
On Wed, 19 Oct 2022 at 08:36, Anand Moon <linux.amoon@xxxxxxxxx> wrote:
Hi Martin,
On Wed, 19 Oct 2022 at 02:46, Martin Blumenstingl
<martin.blumenstingl@xxxxxxxxxxxxxx> wrote:
Hello Anand,
On Tue, Oct 18, 2022 at 9:53 PM Anand Moon <linux.amoon@xxxxxxxxx> wrote:
Odroid N2/N2+ support active cooling via gpio-fan controller.
Add fan controls and tip point for cpu and ddr thermal sensor
on this boards.
In the schematics for board rev 0.6 [0] I cannot find any information
about a fan connector.
The schematics for board rev 0.3 [1] on the other hand document a PWM
based fan connector on page 16.
So now I am not sure whether your patch only applies to certain board
revisions, the schematics are incorrect, etc.
Can you please provide some details about the fan connector on
Odroid-N2/N2+ and which hardware revisions are supported (and which
aren't) by your patch?
Ok I got this wrong the schematics below there is pwm controller, not
gpio controller
GPIOAO.BIT10 (PWM)
I will correct the patch sorry for the mistake I did not look more carefully.
As per the schematics GPIOAO_10 is controlled by PWMAO_D
But looking into the datasheet [0] I could not find the relevant
PWMAO_D pmw ip block to link the fan to the PWM controller.
[0] https://dn.odroid.com/S922X/ODROID-N2/Datasheet/S922X_Public_Datasheet_V0.2.pdf
I could get the PWM node but is not working for me.
@@ -547,6 +588,14 @@ &pwm_ab {
status = "okay";
};
+&pwm_AO_ab {
&pwm_AO_cd not _ab
+ pinctrl-1 = <&pwm_ao_d_10_pins>;
+ pinctrl-names = "default";
+ clocks = <&xtal>;
+ clock-names = "clkin0";
+ status = "okay";
+};
+
Thanks
-Anand
Thank you!
Martin
[0] https://dn.odroid.com/S922X/ODROID-N2/Schematic/odroid-n2_rev0.6_20210121.pdf
[1] https://dn.odroid.com/S922X/ODROID-N2/Schematic/odroid-n2_rev0.3_20190117.pdf
Thanks
-Anand
Neil
