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fdc2e10893
This patch supports mipi dsi for exynos5422. The dsi register offsets of the exynos5422 are similar with exynos5433. However, the values of the registers are quite different from the exynos5433. For example, the exynos5422 uses sw reset like previous chips. Signed-off-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
105 lines
3.3 KiB
Plaintext
105 lines
3.3 KiB
Plaintext
Exynos MIPI DSI Master
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Required properties:
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- compatible: value should be one of the following
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"samsung,exynos3250-mipi-dsi" /* for Exynos3250/3472 SoCs */
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"samsung,exynos4210-mipi-dsi" /* for Exynos4 SoCs */
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"samsung,exynos4415-mipi-dsi" /* for Exynos4415 SoC */
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"samsung,exynos5410-mipi-dsi" /* for Exynos5410/5420/5440 SoCs */
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"samsung,exynos5422-mipi-dsi" /* for Exynos5422/5800 SoCs */
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"samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */
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- reg: physical base address and length of the registers set for the device
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- interrupts: should contain DSI interrupt
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- clocks: list of clock specifiers, must contain an entry for each required
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entry in clock-names
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- clock-names: should include "bus_clk"and "sclk_mipi" entries
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the use of "pll_clk" is deprecated
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- phys: list of phy specifiers, must contain an entry for each required
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entry in phy-names
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- phy-names: should include "dsim" entry
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- vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
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- vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
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- samsung,pll-clock-frequency: specifies frequency of the oscillator clock
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- #address-cells, #size-cells: should be set respectively to <1> and <0>
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according to DSI host bindings (see MIPI DSI bindings [1])
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Optional properties:
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- power-domains: a phandle to DSIM power domain node
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Child nodes:
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Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).
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Video interfaces:
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Device node can contain video interface port nodes according to [2].
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The following are properties specific to those nodes:
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port node inbound:
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- reg: (required) must be 0.
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port node outbound:
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- reg: (required) must be 1.
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endpoint node connected from mic node (reg = 0):
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- remote-endpoint: specifies the endpoint in mic node. This node is required
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for Exynos5433 mipi dsi. So mic can access to panel node
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thoughout this dsi node.
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endpoint node connected to panel node (reg = 1):
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- remote-endpoint: specifies the endpoint in panel node. This node is
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required in all kinds of exynos mipi dsi to represent
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the connection between mipi dsi and panel.
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- samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
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mode
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- samsung,esc-clock-frequency: specifies DSI frequency in escape mode
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[1]: Documentation/devicetree/bindings/display/mipi-dsi-bus.txt
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[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
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Example:
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dsi@11C80000 {
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compatible = "samsung,exynos4210-mipi-dsi";
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reg = <0x11C80000 0x10000>;
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interrupts = <0 79 0>;
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clocks = <&clock 286>, <&clock 143>;
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clock-names = "bus_clk", "sclk_mipi";
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phys = <&mipi_phy 1>;
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phy-names = "dsim";
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vddcore-supply = <&vusb_reg>;
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vddio-supply = <&vmipi_reg>;
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power-domains = <&pd_lcd0>;
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#address-cells = <1>;
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#size-cells = <0>;
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samsung,pll-clock-frequency = <24000000>;
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panel@1 {
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reg = <0>;
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...
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port {
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panel_ep: endpoint {
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remote-endpoint = <&dsi_ep>;
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};
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};
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};
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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decon_to_mic: endpoint {
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remote-endpoint = <&mic_to_decon>;
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};
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};
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port@1 {
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reg = <1>;
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dsi_ep: endpoint {
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reg = <0>;
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samsung,burst-clock-frequency = <500000000>;
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samsung,esc-clock-frequency = <20000000>;
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remote-endpoint = <&panel_ep>;
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};
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};
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};
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};
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