I found this via code inspection. Notice that in
drivers/mfd/ti_am335x_tscadc.c
it passes the string "ti,coordiante-readouts" on line 144:
142 node = of_get_child_by_name(pdev->dev.of_node, "tsc");
143 of_property_read_u32(node, "ti,wires", &tsc_wires);
144 of_property_read_u32(node, "ti,coordiante-readouts",
&readouts);
145
I believe this routine is reading a property from
arch/arm/boot/dts/am335x-evm.dts
Note on line 733 it has "ti,coordinate-readouts":
728 &tscadc {
729 status = "okay";
730 tsc {
731 ti,wires = <4>;
732 ti,x-plate-resistance = <200>;
733 ti,coordinate-readouts = <5>;
734 ti,wire-config = <0x00 0x11 0x22 0x33>;
735 ti,charge-delay = <0x400>;
736 };
737
738 adc {
739 ti,adc-channels = <4 5 6 7>;
740 };
741 };
I assume there is a simple character transposition issue between the two
lines
where the "a" and "n" got transposed. I assume line 144 in file
ti_am335x_tscadc.c
should be:
of_property_read_u32(node, "ti,coordinate-readouts", &readouts);
Thanks
Chris Kottaridis
diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index 0f3fab47fe48..1a73582c65e0 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -141,7 +141,7 @@ static int ti_tscadc_probe(struct platform_device *pdev)
node = of_get_child_by_name(pdev->dev.of_node, "tsc");
of_property_read_u32(node, "ti,wires", &tsc_wires);
- of_property_read_u32(node, "ti,coordiante-readouts", &readouts);
+ of_property_read_u32(node, "ti,coordinate-readouts", &readouts);
node = of_get_child_by_name(pdev->dev.of_node, "adc");
of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) {
--
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