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Date: Tue, 1 Sep 2015 22:48:17 +0800
From: Yakir Yang <ykk@...k-chips.com>
To: Heiko Stuebner <heiko@...ech.de>
Cc: Thierry Reding <treding@...dia.com>,
Jingoo Han <jingoohan1@...il.com>,
Inki Dae <inki.dae@...sung.com>, joe@...ches.com,
Kukjin Kim <kgene@...nel.org>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Mark Yao <mark.yao@...k-chips.com>,
Russell King <rmk+kernel@....linux.org.uk>,
Daniel Kurtz <djkurtz@...omium.org>,
Doug Anderson <dianders@...omium.org>,
Sean Paul <seanpaul@...omium.org>, ajaynumb@...il.com,
Andrzej Hajda <a.hajda@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
David Airlie <airlied@...ux.ie>,
Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
Andy Yan <andy.yan@...k-chips.com>,
Kumar Gala <galak@...eaurora.org>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Kishon Vijay Abraham I <kishon@...com>,
architt@...eaurora.org, robherring2@...il.com,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
linux-arm-kernel@...t.NULL.NULL, s.infradead.org@...L.NULL
Subject: Re: [PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp
driver
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@...k-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@...70000 {
>> + 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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