Re: [PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp driver

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Hi Heiko,

在 2015/9/1 22:24, Heiko Stuebner 写道:
Am Dienstag, 1. September 2015, 14:01:28 schrieb Yakir Yang:
Rockchip have three clocks for dp controller, we leave pclk_edp
to analogix_dp driver control, and keep the sclk_edp_24m and
sclk_edp in platform driver.

Signed-off-by: Yakir Yang <ykk@xxxxxxxxxxxxxx>
---
Changes in v4:
- Remove some deprecated DT properties in rockchip dp document.

Changes in v3:
- Take Thierry Reding and Heiko suggest, leave "sclk_edp_24m" to rockchip
   dp phy driver which name to "24m", and leave "sclk_edp" to analogix dp
   core driver which name to "dp", and leave "pclk_edp" to rockchip dp
platform driver which name to "pclk".
- Take Heiko suggest, add devicetree binding document.
- Take Heiko suggest, remove "rockchip,panel" DT property, take use of
remote point to get panel node.
- Add the new function point analogix_dp_platdata.get_modes init.

Changes in v2:
- Take Heiko suggest, get panel node with remote-endpoint method,
   and create devicetree binding for driver.
- Remove the clock enable/disbale with "sclk_edp" & "sclk_edp_24m",
   leave those clock to rockchip dp phy driver.

  .../bindings/video/analogix_dp-rockchip.txt        |  74 ++++
  drivers/gpu/drm/rockchip/Kconfig                   |   9 +
  drivers/gpu/drm/rockchip/Makefile                  |   1 +
  drivers/gpu/drm/rockchip/analogix_dp-rockchip.c    | 389
+++++++++++++++++++++ 4 files changed, 473 insertions(+)
  create mode 100644
Documentation/devicetree/bindings/video/analogix_dp-rockchip.txt create
mode 100644 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c

diff --git
a/Documentation/devicetree/bindings/video/analogix_dp-rockchip.txt
b/Documentation/devicetree/bindings/video/analogix_dp-rockchip.txt new file
mode 100644
index 0000000..502483e
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/analogix_dp-rockchip.txt
@@ -0,0 +1,74 @@
+Rockchip RK3288 specific extensions to the Analogix Display Port
+================================
+
+Required properties:
+- compatible: "rockchip,rk3288-edp";
+
+- reg: physical base address of the controller and length
+
+- clocks: from common clock binding: handle to dp clock.
+	  of memory mapped region.
+
+- clock-names: from common clock binding:
+	       Required elements: "dp" "pclk"
+
+- resets: Must contain an entry for each entry in reset-names.
+	  See ../reset/reset.txt for details.
+
+- reset-names: Must include the name "dp"
+
+- rockchip,grf: this soc should set GRF regs, so need get grf here.
+
+- ports: contain a port node with endpoint definitions as defined in
+  Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+
+For the below properties, please refer to Analogix DP binding document:
+ * Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt
+- phys (required)
+- phy-names (required)
+- hpd-gpios (optional)
+---------------------------------------------------------------------------
---- +
+Example:
+	dp-controller: dp@ff970000 {
+		compatible = "rockchip,rk3288-dp";
+		reg = <0xff970000 0x4000>;
+		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru SCLK_EDP>, <&cru PCLK_EDP_CTRL>;
+		clock-names = "dp", "pclk";
+		phys = <&dp_phy>;
+		phy-names = "dp";
+
+		rockchip,grf = <&grf>;
+		resets = <&cru 111>;
+		reset-names = "dp";
+
+		status = "disabled";
+
+		ports {
+			edp_in: port {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				edp_in_vopb: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&vopb_out_edp>;
+				};
+				edp_in_vopl: endpoint@1 {
+					reg = <1>;
+					remote-endpoint = <&vopl_out_edp>;
+				};
+			};
+
+			edp_out: port@1 {
+				reg = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				edp_out_panel: endpoint {
+					reg = <0>;
+					remote-endpoint = <&panel_in_edp>
+				};
+			};
+		};
+	};
+
just a nit right now, because "git am" mentioned it:

git am \[PATCH\ v4\ 08_16\]\ drm_rockchip_dp_add\ rockchip\ platform\ dp\
driver.mbox
[...]/linux-rockchip/.git/rebase-apply/patch:108: new blank line at EOF.
+

meaning you're adding an empty line at the end :-)

Oh, thanks, I have saw this too when I apply this on linux-next
branch, but I haven't see the log very careful at that time, and
".git/rebase-apply/patch" just empty, so I just go ahead and
forget to fix this one.

Thanks for your remind,
 - Yakir


Heiko





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