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Message-ID: <20151208150131.GA8646@rob-hp-laptop>
Date: Tue, 8 Dec 2015 09:01:31 -0600
From: Rob Herring <robh@...nel.org>
To: Yakir Yang <ykk@...k-chips.com>
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
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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