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

[Yakir Yang]

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 at rock-chips.com>
>> ---
>> 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 at 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 at 0 {
>> +					reg = <0>;
>> +					remote-endpoint = <&vopb_out_edp>;
>> +				};
>> +				edp_in_vopl: endpoint at 1 {
>> +					reg = <1>;
>> +					remote-endpoint = <&vopl_out_edp>;
>> +				};
>> +			};
>> +
>> +			edp_out: port at 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
>
>
>