Re: [v1 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
From: Rob Herring <robh@kernel.org>
Date: 2016-06-08 19:14:12
Also in:
linux-arm-kernel, linux-rockchip, lkml
On Wed, Jun 08, 2016 at 09:38:33AM +0800, Chris Zhong wrote:
Hi Rob On 06/07/2016 09:46 PM, Rob Herring wrote:quoted
On Mon, Jun 6, 2016 at 7:33 PM, Chris Zhong [off-list ref] wrote:quoted
Hi Rob On 06/06/2016 10:27 PM, Rob Herring wrote:quoted
On Fri, Jun 03, 2016 at 11:15:08PM +0800, Chris Zhong wrote:quoted
This patch adds a binding that describes the Rockchip USB Type-C PHY for rk3399 Signed-off-by: Chris Zhong <redacted> --- Changes in v1: - add extcon node description - move the registers in phy driver - remove the suffix of reset .../devicetree/bindings/phy/phy-rockchip-typec.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-typec.txtdiff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txtb/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt new file mode 100644 index 0000000..964e0f7--- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt@@ -0,0 +1,46 @@ +* ROCKCHIP type-c PHY +--------------------- + +Required properties: + - compatible: should be "rockchip,rk3399-typec-phy0" or + "rockchip,rk3399-typec-phy1"What's the difference between 0 and 1? If it is to handle the register offsets you have in the previous version and the phy blocks are identical, then the compatible strings should be the same.yes, the registers are different between 0 and 1, and there is a grf register(0x6268) for switch the phy 0 and phy 1But GRF is in a separate block and not part of the phy, right? RobThe GRF is not a single function block, it contain many registers to control other block. For Type-c phy, the type-c orientation, phy select, and some phy status registers are embedded in GRF So the GRF is registered for a syscon driver, the phy driver call regmap to access the registers.
Right, so different compatible strings is wrong here. Keep it more like you had it before. Rob