Re: [PATCH v5 3/3] ARM: dts: igep00x0: add wl18xx bindings

* Eliad Peller [off-list ref] [150309 14:03]:

On Mon, Mar 9, 2015 at 9:50 PM, Arnd Bergmann [off-list ref] wrote:

quoted

On Monday 09 March 2015 17:36:42 Eliad Peller wrote:

quoted

--- a/arch/arm/boot/dts/omap3-igep0030-rev-g.dts
+++ b/arch/arm/boot/dts/omap3-igep0030-rev-g.dts

@@ -64,4 +64,13 @@
        vmmc-supply = <&lbep5clwmc_wlen>;
        bus-width = <4>;
        non-removable;
+
+       #address-cells = <1>;
+       #size-cells = <0>;
+       wlcore: wlcore@2 {
+               compatible = "ti,wl1835";
+               reg = <2>;
+               interrupt-parent = <&gpio5>;
+               interrupts = <8 IRQ_TYPE_NONE>;
+       };

Why IRQ_TYPE_NONE?

i simply mirrored the current board file (which only sets the irq number).

quoted

I was expecting you to remove all calls to legacy_init_wl12xx from this file,
including the ones for wl12xx aside from the wl18xx ones you removed, but
if that's enough to clean out the platform_data handling from the wlcore
driver, it's good enough as a start.

not sure i'm following - can you elaborate?

i'll summarize the way i see it. please correct me if i'm wrong.

both wl18xx and wl12xx use the platform data to get the irq number.
wl12xx (only) also needs some additional clock definitions to be
passed. there's currently some issue with specifying some the of clock
sources, so i preferred starting only with (the simpler) wl18xx
bindings.

for platforms with wl18xx, we can remove the pdata-quirk, as all the
data (i.e. irq) can be passed by the new DT bindings.
however, for platforms with wl12xx, we still need to pass the clock
definitions (along with the irq), so we have to keep
legacy_init_wl12xx for the time being (and that's also why we have to
currently keep the platform_data handling in the wlcore driver)

do you have something else in mind?

I think what Arnd is saying is we've now removed all the wl12xx using
legacy platforms, so all of them can boot with just data from dts.

Regards,

Tony