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Message-ID: <56677DC0.3080903@rock-chips.com>
Date: Wed, 9 Dec 2015 09:02:56 +0800
From: Yakir Yang <ykk@...k-chips.com>
To: Rob Herring <robh@...nel.org>
Cc: Inki Dae <inki.dae@...sung.com>,
Mark Yao <mark.yao@...k-chips.com>,
Jingoo Han <jingoohan1@...il.com>,
Heiko Stuebner <heiko@...ech.de>,
Thierry Reding <treding@...dia.com>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Andrzej Hajda <a.hajda@...sung.com>,
Joonyoung Shim <jy0922.shim@...sung.com>,
Seung-Woo Kim <sw0312.kim@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Russell King <linux@....linux.org.uk>,
emil.l.velikov@...il.com,
Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
Kishon Vijay Abraham I <kishon@...com>, ajaynumb@...il.com,
javier@....samsung.com, Andy Yan <andy.yan@...k-chips.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@...ts.infradead.org
Subject: Re: [PATCH v10 05/17] dt-bindings: add document for analogix display
port driver
Hi Rob,
Thanks
- Yakir
On 12/08/2015 11:01 PM, Rob Herring wrote:
> On Mon, Dec 07, 2015 at 02:39:07PM +0800, Yakir Yang wrote:
>> Analogix dp driver is split from exynos dp driver, so we just
>> make an copy of exynos_dp.txt, and then simplify exynos_dp.txt
>>
>> Beside update some exynos dtsi file with the latest change
>> according to the devicetree binding documents.
>>
>> Signed-off-by: Yakir Yang <ykk@...k-chips.com>
>> Tested-by: Javier Martinez Canillas <javier@....samsung.com>
> Acked-by: Rob Herring <robh@...nel.org>
>
>> ---
>> Changes in v10: None
>> Changes in v9: None
>> Changes in v8:
>> - Correct the right document path of display-timing.txt (Heiko)
>> - Correct the misspell of 'from' to 'frm'. (Heiko)
>>
>> Changes in v7: None
>> Changes in v6: None
>> Changes in v5: None
>> Changes in v4:
>> - Split all DTS changes, and provide backward compatibility. Mark old
>> properties as deprecated but still support them. (Krzysztof)
>> - Update "analogix,hpd-gpio" to "hpd-gpios" prop name. (Rob)
>> - Deprecated some properties which could parsed from Edid/Mode/DPCD. (Thierry)
>> "analogix,color-space" & "analogix,color-depth" &
>> "analogix,link-rate" & "analogix,lane-count" &
>> "analogix,ycbcr-coeff" & "analogix,dynamic-range" &
>> "vsync-active-high" & "hsync-active-high" & "interlaces"
>>
>> Changes in v3:
>> - Add devicetree binding documents. (Heiko)
>> - Remove sync pol & colorimetry properies from the new analogix dp driver
>> devicetree binding. (Thierry)
>> - Update the exist exynos dtsi file with the latest DP DT properies.
>>
>> Changes in v2: None
>>
>> .../bindings/display/bridge/analogix_dp.txt | 50 +++++++++++++++++
>> .../bindings/display/exynos/exynos_dp.txt | 65 ++++++++--------------
>> 2 files changed, 72 insertions(+), 43 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
>>
>> diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
>> new file mode 100644
>> index 0000000..7659a7a
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
>> @@ -0,0 +1,50 @@
>> +Analogix Display Port bridge bindings
>> +
>> +Required properties for dp-controller:
>> + -compatible:
>> + platform specific such as:
>> + * "samsung,exynos5-dp"
>> + * "rockchip,rk3288-dp"
>> + -reg:
>> + physical base address of the controller and length
>> + of memory mapped region.
>> + -interrupts:
>> + interrupt combiner values.
>> + -clocks:
>> + from common clock binding: handle to dp clock.
>> + -clock-names:
>> + from common clock binding: Shall be "dp".
>> + -interrupt-parent:
>> + phandle to Interrupt combiner node.
>> + -phys:
>> + from general PHY binding: the phandle for the PHY device.
>> + -phy-names:
>> + from general PHY binding: Should be "dp".
>> +
>> +Optional properties for dp-controller:
>> + -hpd-gpios:
>> + Hotplug detect GPIO.
>> + Indicates which GPIO should be used for hotplug detection
>> + -port@[X]: SoC specific port nodes with endpoint definitions as defined
>> + in Documentation/devicetree/bindings/media/video-interfaces.txt,
>> + please refer to the SoC specific binding document:
>> + * Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
>> + * Documentation/devicetree/bindings/video/analogix_dp-rockchip.txt
>> +
>> +
>> +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
>> +-------------------------------------------------------------------------------
>> +
>> +Example:
>> +
>> + dp-controller {
>> + compatible = "samsung,exynos5-dp";
>> + reg = <0x145b0000 0x10000>;
>> + interrupts = <10 3>;
>> + interrupt-parent = <&combiner>;
>> + clocks = <&clock 342>;
>> + clock-names = "dp";
>> +
>> + phys = <&dp_phy>;
>> + phy-names = "dp";
>> + };
>> diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt b/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
>> index 64693f2..9905081 100644
>> --- a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
>> +++ b/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
>> @@ -31,45 +31,31 @@ Required properties for dp-controller:
>> from general PHY binding: the phandle for the PHY device.
>> -phy-names:
>> from general PHY binding: Should be "dp".
>> - -samsung,color-space:
>> - input video data format.
>> - COLOR_RGB = 0, COLOR_YCBCR422 = 1, COLOR_YCBCR444 = 2
>> - -samsung,dynamic-range:
>> - dynamic range for input video data.
>> - VESA = 0, CEA = 1
>> - -samsung,ycbcr-coeff:
>> - YCbCr co-efficients for input video.
>> - COLOR_YCBCR601 = 0, COLOR_YCBCR709 = 1
>> - -samsung,color-depth:
>> - number of bits per colour component.
>> - COLOR_6 = 0, COLOR_8 = 1, COLOR_10 = 2, COLOR_12 = 3
>> - -samsung,link-rate:
>> - link rate supported by the panel.
>> - LINK_RATE_1_62GBPS = 0x6, LINK_RATE_2_70GBPS = 0x0A
>> - -samsung,lane-count:
>> - number of lanes supported by the panel.
>> - LANE_COUNT1 = 1, LANE_COUNT2 = 2, LANE_COUNT4 = 4
>> - - display-timings: timings for the connected panel as described by
>> - Documentation/devicetree/bindings/display/display-timing.txt
>>
>> Optional properties for dp-controller:
>> - -interlaced:
>> - interlace scan mode.
>> - Progressive if defined, Interlaced if not defined
>> - -vsync-active-high:
>> - VSYNC polarity configuration.
>> - High if defined, Low if not defined
>> - -hsync-active-high:
>> - HSYNC polarity configuration.
>> - High if defined, Low if not defined
>> - -samsung,hpd-gpio:
>> - Hotplug detect GPIO.
>> - Indicates which GPIO should be used for hotplug
>> - detection
>> - -video interfaces: Device node can contain video interface port
>> - nodes according to [1].
>> + - display-timings: timings for the connected panel as described by
>> + Documentation/devicetree/bindings/display/panel/display-timing.txt
>> +
>> +For the below properties, please refer to Analogix DP binding document:
>> + * Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
>> + -phys (required)
>> + -phy-names (required)
>> + -hpd-gpios (optional)
>> + -video interfaces (optional)
>>
>> -[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
>> +Deprecated properties for DisplayPort:
>> +-interlaced: deprecated prop that can parsed from drm_display_mode.
>> +-vsync-active-high: deprecated prop that can parsed from drm_display_mode.
>> +-hsync-active-high: deprecated prop that can parsed from drm_display_mode.
>> +-samsung,ycbcr-coeff: deprecated prop that can parsed from drm_display_mode.
>> +-samsung,dynamic-range: deprecated prop that can parsed from drm_display_mode.
>> +-samsung,color-space: deprecated prop that can parsed from drm_display_info.
>> +-samsung,color-depth: deprecated prop that can parsed from drm_display_info.
>> +-samsung,link-rate: deprecated prop that can reading from monitor by dpcd method.
>> +-samsung,lane-count: deprecated prop that can reading from monitor by dpcd method.
>> +-samsung,hpd-gpio: deprecated name for hpd-gpios.
>> +
>> +-------------------------------------------------------------------------------
>>
>> Example:
>>
>> @@ -88,13 +74,6 @@ SOC specific portion:
>>
>> Board Specific portion:
>> dp-controller {
>> - samsung,color-space = <0>;
>> - samsung,dynamic-range = <0>;
>> - samsung,ycbcr-coeff = <0>;
>> - samsung,color-depth = <1>;
>> - samsung,link-rate = <0x0a>;
>> - samsung,lane-count = <4>;
>> -
>> display-timings {
>> native-mode = <&lcd_timing>;
>> lcd_timing: 1366x768 {
>> --
>> 1.9.1
>>
>>
>
>
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