Re: [PATCH v2 3/5] ARM: dts: exynos4412-odroidx: add support for USB (phy, host, device)

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Hello,

On 2014-06-25 15:58, Vivek Gautam wrote:
On Wed, Jun 25, 2014 at 6:56 PM, Marek Szyprowski
<m.szyprowski@xxxxxxxxxxx> wrote:
From: Kamil Debski <k.debski@xxxxxxxxxxx>

This patch adds basic support for USB modules (host and device) on
OdroidX board.

Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx>
[removed incorrect port@2 node]
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
  arch/arm/boot/dts/exynos4412-odroidx.dts | 27 +++++++++++++++++++++++++++
  1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts
index fda9ac23dd55..4c853fbf7202 100644
--- a/arch/arm/boot/dts/exynos4412-odroidx.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidx.dts
@@ -148,6 +148,16 @@
                 pinctrl-names = "default";
                 status = "okay";

+               usb3503@08 {
+                       compatible = "smsc,usb3503";
+                       reg = <0x08>;
+
+                       intn-gpios = <&gpx3 0 0>;
+                       connect-gpios = <&gpx3 4 0>;
+                       reset-gpios = <&gpx3 5 0>;
+                       initial-mode = <1>;
+               };
+
                 max77686: pmic@09 {
                         compatible = "maxim,max77686";
                         reg = <0x09>;
@@ -338,4 +348,21 @@
                         };
                 };
         };
+
+       exynos-usbphy@125B0000 {
+               status = "okay";
+       };
+
+       hsotg@12480000 {
+               status = "okay";
+               vusb_d-supply = <&ldo15_reg>;
+               vusb_a-supply = <&ldo12_reg>;
Can you please point me to the documentation for these two properties
in the DT bindings ?

Documentation/devicetree/bindings/usb/samsung-hsotg.txt:
- vusb_d-supply: phandle to voltage regulator of digital section,
- vusb_a-supply: phandle to voltage regulator of analog section.

Which tree i should grep to find that ?

Support for vusb_d and vusb_a regulators is already in s3c-hsotg driver
(now a part of dwc2/gadget driver) since v3.5.

We have similar supplies for ehci/ohci and other host controllers too,
so just wondering
if we can use similar nomenclature for hsotg as well as host.

I have posted driver side patches for host (with DT documentation) a
while back :
https://lkml.org/lkml/2014/6/25/363

Ok, I will take a look into your patches, but I'm not sure if it makes
sense to change the s3c-hsotg bindings now.

Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland

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