Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Summaries: - Add MIPI-DSI Driver, and dt bindigs - Add S6E8AA0 MIPI-DSI based panel drivers, and dt bindings - Add LD9040 parallel panel driver . this driver is placed in drivers/gpu/drm/panel, and it seems to be used for exynos drm as of now, - Some fixups Changelog v2: - Remove super device support, and relevant dt bindings for more reviews. - Fix module build errors you pointed out. - Re-based it to drm-next again. * 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/bridge: export ptn3460_init function drm/exynos: remove MODULE_DEVICE_TABLE definitions ARM: dts: exynos4412-trats2: enable exynos/fimd node ARM: dts: exynos4210-trats: enable exynos/fimd node ARM: dts: exynos4412-trats2: add panel node ARM: dts: exynos4210-trats: add panel node ARM: dts: exynos4: add MIPI DSI Master node drm/panel: add S6E8AA0 driver ARM: dts: exynos4210-universal_c210: add proper panel node drm/panel: add ld9040 driver panel/ld9040: add DT bindings panel/s6e8aa0: add DT bindings drm/exynos: add DSIM driver exynos/dsim: add DT bindings drm/exynos: disallow fbdev initialization if no device is connected drm/mipi_dsi: create dsi devices only for nodes with reg property drm/mipi_dsi: add flags to DSI messages
This commit is contained in:
Dave Airlie
commit
13b9389274
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@ -0,0 +1,66 @@
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Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
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||||
|
||||
Required properties:
|
||||
- compatible: "samsung,ld9040"
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- reg: address of the panel on SPI bus
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- vdd3-supply: core voltage supply
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||||
- vci-supply: voltage supply for analog circuits
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||||
- reset-gpios: a GPIO spec for the reset pin
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||||
- display-timings: timings for the connected panel according to [1]
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||||
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||||
The panel must obey rules for SPI slave device specified in document [2].
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||||
|
||||
Optional properties:
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||||
- power-on-delay: delay after turning regulators on [ms]
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- reset-delay: delay after reset sequence [ms]
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- panel-width-mm: physical panel width [mm]
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- panel-height-mm: physical panel height [mm]
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The device node can contain one 'port' child node with one child
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'endpoint' node, according to the bindings defined in [3]. This
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node should describe panel's video bus.
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[1]: Documentation/devicetree/bindings/video/display-timing.txt
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[2]: Documentation/devicetree/bindings/spi/spi-bus.txt
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[3]: Documentation/devicetree/bindings/media/video-interfaces.txt
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Example:
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lcd@0 {
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compatible = "samsung,ld9040";
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reg = <0>;
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vdd3-supply = <&ldo7_reg>;
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vci-supply = <&ldo17_reg>;
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reset-gpios = <&gpy4 5 0>;
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spi-max-frequency = <1200000>;
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spi-cpol;
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spi-cpha;
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power-on-delay = <10>;
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reset-delay = <10>;
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panel-width-mm = <90>;
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panel-height-mm = <154>;
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display-timings {
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timing {
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clock-frequency = <23492370>;
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hactive = <480>;
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vactive = <800>;
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hback-porch = <16>;
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hfront-porch = <16>;
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vback-porch = <2>;
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vfront-porch = <28>;
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hsync-len = <2>;
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vsync-len = <1>;
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hsync-active = <0>;
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vsync-active = <0>;
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de-active = <0>;
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pixelclk-active = <0>;
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};
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};
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port {
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lcd_ep: endpoint {
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remote-endpoint = <&fimd_dpi_ep>;
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};
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};
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};
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@ -0,0 +1,56 @@
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Samsung S6E8AA0 AMOLED LCD 5.3 inch panel
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Required properties:
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- compatible: "samsung,s6e8aa0"
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- reg: the virtual channel number of a DSI peripheral
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- vdd3-supply: core voltage supply
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- vci-supply: voltage supply for analog circuits
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- reset-gpios: a GPIO spec for the reset pin
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- display-timings: timings for the connected panel as described by [1]
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|
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Optional properties:
|
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- power-on-delay: delay after turning regulators on [ms]
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- reset-delay: delay after reset sequence [ms]
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- init-delay: delay after initialization sequence [ms]
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- panel-width-mm: physical panel width [mm]
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- panel-height-mm: physical panel height [mm]
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- flip-horizontal: boolean to flip image horizontally
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- flip-vertical: boolean to flip image vertically
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The device node can contain one 'port' child node with one child
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'endpoint' node, according to the bindings defined in [2]. This
|
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node should describe panel's video bus.
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[1]: Documentation/devicetree/bindings/video/display-timing.txt
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[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
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Example:
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panel {
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compatible = "samsung,s6e8aa0";
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reg = <0>;
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vdd3-supply = <&vcclcd_reg>;
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vci-supply = <&vlcd_reg>;
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reset-gpios = <&gpy4 5 0>;
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power-on-delay= <50>;
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reset-delay = <100>;
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init-delay = <100>;
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panel-width-mm = <58>;
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panel-height-mm = <103>;
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flip-horizontal;
|
||||
flip-vertical;
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|
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display-timings {
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timing0: timing-0 {
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clock-frequency = <57153600>;
|
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hactive = <720>;
|
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vactive = <1280>;
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hfront-porch = <5>;
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hback-porch = <5>;
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hsync-len = <5>;
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vfront-porch = <13>;
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vback-porch = <1>;
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vsync-len = <2>;
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};
|
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};
|
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};
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|
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@ -0,0 +1,80 @@
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Exynos MIPI DSI Master
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Required properties:
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- compatible: "samsung,exynos4210-mipi-dsi"
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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 "pll_clk" entries
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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 "pll_clk" 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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|
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Optional properties:
|
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- samsung,power-domain: 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:
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- reg: (required) can be 0 for input RGB/I80 port or 1 for DSI port;
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endpoint node of DSI port (reg = 1):
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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/mipi/dsi/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", "pll_clk";
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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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samsung,power-domain = <&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@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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@ -104,6 +104,20 @@
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reg = <0x10010000 0x400>;
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||||
};
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dsi_0: 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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samsung,power-domain = <&pd_lcd0>;
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phys = <&mipi_phy 1>;
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phy-names = "dsim";
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clocks = <&clock 286>, <&clock 143>;
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clock-names = "bus_clk", "pll_clk";
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status = "disabled";
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#address-cells = <1>;
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#size-cells = <0>;
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};
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camera {
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compatible = "samsung,fimc", "simple-bus";
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status = "disabled";
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|
|
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|
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@ -353,6 +353,67 @@
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};
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};
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dsi_0: dsi@11C80000 {
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vddcore-supply = <&vusb_reg>;
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vddio-supply = <&vmipi_reg>;
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samsung,pll-clock-frequency = <24000000>;
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status = "okay";
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@1 {
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reg = <1>;
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dsi_out: endpoint {
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remote-endpoint = <&dsi_in>;
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samsung,burst-clock-frequency = <500000000>;
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samsung,esc-clock-frequency = <20000000>;
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};
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};
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};
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panel@0 {
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reg = <0>;
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compatible = "samsung,s6e8aa0";
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vdd3-supply = <&vcclcd_reg>;
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vci-supply = <&vlcd_reg>;
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reset-gpios = <&gpy4 5 0>;
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power-on-delay= <50>;
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reset-delay = <100>;
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init-delay = <100>;
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flip-horizontal;
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flip-vertical;
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panel-width-mm = <58>;
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panel-height-mm = <103>;
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display-timings {
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timing-0 {
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clock-frequency = <57153600>;
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hactive = <720>;
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vactive = <1280>;
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hfront-porch = <5>;
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hback-porch = <5>;
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hsync-len = <5>;
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vfront-porch = <13>;
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vback-porch = <1>;
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vsync-len = <2>;
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};
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};
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port {
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dsi_in: endpoint {
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remote-endpoint = <&dsi_out>;
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};
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};
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};
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};
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|
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fimd@11c00000 {
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status = "okay";
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};
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camera {
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pinctrl-names = "default";
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pinctrl-0 = <>;
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|
|
|
|||
|
|
@ -225,7 +225,6 @@
|
|||
regulator-name = "VLCD+VMIPI_1.8V";
|
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regulator-min-microvolt = <1800000>;
|
||||
regulator-max-microvolt = <1800000>;
|
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regulator-always-on;
|
||||
};
|
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|
||||
ldo8_reg: LDO8 {
|
||||
|
|
@ -289,7 +288,6 @@
|
|||
regulator-name = "VCC_3.0V_LCD";
|
||||
regulator-min-microvolt = <3000000>;
|
||||
regulator-max-microvolt = <3000000>;
|
||||
regulator-always-on;
|
||||
};
|
||||
|
||||
buck1_reg: BUCK1 {
|
||||
|
|
@ -347,27 +345,66 @@
|
|||
};
|
||||
};
|
||||
|
||||
spi-lcd {
|
||||
compatible = "spi-gpio";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
gpio-sck = <&gpy3 1 0>;
|
||||
gpio-mosi = <&gpy3 3 0>;
|
||||
num-chipselects = <1>;
|
||||
cs-gpios = <&gpy4 3 0>;
|
||||
|
||||
lcd@0 {
|
||||
compatible = "samsung,ld9040";
|
||||
reg = <0>;
|
||||
vdd3-supply = <&ldo7_reg>;
|
||||
vci-supply = <&ldo17_reg>;
|
||||
reset-gpios = <&gpy4 5 0>;
|
||||
spi-max-frequency = <1200000>;
|
||||
spi-cpol;
|
||||
spi-cpha;
|
||||
power-on-delay = <10>;
|
||||
reset-delay = <10>;
|
||||
panel-width-mm = <90>;
|
||||
panel-height-mm = <154>;
|
||||
display-timings {
|
||||
timing {
|
||||
clock-frequency = <23492370>;
|
||||
hactive = <480>;
|
||||
vactive = <800>;
|
||||
hback-porch = <16>;
|
||||
hfront-porch = <16>;
|
||||
vback-porch = <2>;
|
||||
vfront-porch = <28>;
|
||||
hsync-len = <2>;
|
||||
vsync-len = <1>;
|
||||
hsync-active = <0>;
|
||||
vsync-active = <0>;
|
||||
de-active = <0>;
|
||||
pixelclk-active = <0>;
|
||||
};
|
||||
};
|
||||
port {
|
||||
lcd_ep: endpoint {
|
||||
remote-endpoint = <&fimd_dpi_ep>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
fimd: fimd@11c00000 {
|
||||
pinctrl-0 = <&lcd_clk>, <&lcd_data24>;
|
||||
pinctrl-names = "default";
|
||||
status = "okay";
|
||||
samsung,invert-vden;
|
||||
samsung,invert-vclk;
|
||||
display-timings {
|
||||
timing {
|
||||
clock-frequency = <23492370>;
|
||||
hactive = <480>;
|
||||
vactive = <800>;
|
||||
hback-porch = <16>;
|
||||
hfront-porch = <16>;
|
||||
vback-porch = <2>;
|
||||
vfront-porch = <28>;
|
||||
hsync-len = <2>;
|
||||
vsync-len = <1>;
|
||||
hsync-active = <0>;
|
||||
vsync-active = <0>;
|
||||
de-active = <0>;
|
||||
pixelclk-active = <0>;
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
port@3 {
|
||||
reg = <3>;
|
||||
fimd_dpi_ep: endpoint {
|
||||
remote-endpoint = <&lcd_ep>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -71,6 +71,15 @@
|
|||
enable-active-high;
|
||||
};
|
||||
|
||||
lcd_vdd3_reg: voltage-regulator-2 {
|
||||
compatible = "regulator-fixed";
|
||||
regulator-name = "LCD_VDD_2.2V";
|
||||
regulator-min-microvolt = <2200000>;
|
||||
regulator-max-microvolt = <2200000>;
|
||||
gpio = <&gpc0 1 0>;
|
||||
enable-active-high;
|
||||
};
|
||||
|
||||
/* More to come */
|
||||
};
|
||||
|
||||
|
|
@ -511,6 +520,67 @@
|
|||
};
|
||||
};
|
||||
|
||||
dsi_0: dsi@11C80000 {
|
||||
vddcore-supply = <&ldo8_reg>;
|
||||
vddio-supply = <&ldo10_reg>;
|
||||
samsung,pll-clock-frequency = <24000000>;
|
||||
status = "okay";
|
||||
|
||||
ports {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
port@1 {
|
||||
reg = <1>;
|
||||
|
||||
dsi_out: endpoint {
|
||||
remote-endpoint = <&dsi_in>;
|
||||
samsung,burst-clock-frequency = <500000000>;
|
||||
samsung,esc-clock-frequency = <20000000>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
panel@0 {
|
||||
compatible = "samsung,s6e8aa0";
|
||||
reg = <0>;
|
||||
vdd3-supply = <&lcd_vdd3_reg>;
|
||||
vci-supply = <&ldo25_reg>;
|
||||
reset-gpios = <&gpy4 5 0>;
|
||||
power-on-delay= <50>;
|
||||
reset-delay = <100>;
|
||||
init-delay = <100>;
|
||||
flip-horizontal;
|
||||
flip-vertical;
|
||||
panel-width-mm = <58>;
|
||||
panel-height-mm = <103>;
|
||||
|
||||
display-timings {
|
||||
timing-0 {
|
||||
clock-frequency = <0>;
|
||||
hactive = <720>;
|
||||
vactive = <1280>;
|
||||
hfront-porch = <5>;
|
||||
hback-porch = <5>;
|
||||
hsync-len = <5>;
|
||||
vfront-porch = <13>;
|
||||
vback-porch = <1>;
|
||||
vsync-len = <2>;
|
||||
};
|
||||
};
|
||||
|
||||
port {
|
||||
dsi_in: endpoint {
|
||||
remote-endpoint = <&dsi_out>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
fimd@11c00000 {
|
||||
status = "okay";
|
||||
};
|
||||
|
||||
camera {
|
||||
pinctrl-0 = <&cam_port_b_clk_active>;
|
||||
pinctrl-names = "default";
|
||||
|
|
|
|||
|
|
@ -347,3 +347,4 @@ err:
|
|||
gpio_free(ptn_bridge->gpio_rst_n);
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL(ptn3460_init);
|
||||
|
|
|
|||
|
|
@ -142,8 +142,12 @@ int mipi_dsi_host_register(struct mipi_dsi_host *host)
|
|||
{
|
||||
struct device_node *node;
|
||||
|
||||
for_each_available_child_of_node(host->dev->of_node, node)
|
||||
for_each_available_child_of_node(host->dev->of_node, node) {
|
||||
/* skip nodes without reg property */
|
||||
if (!of_find_property(node, "reg", NULL))
|
||||
continue;
|
||||
of_mipi_dsi_device_add(host, node);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -39,6 +39,15 @@ config DRM_EXYNOS_DPI
|
|||
help
|
||||
This enables support for Exynos parallel output.
|
||||
|
||||
config DRM_EXYNOS_DSI
|
||||
bool "EXYNOS DRM MIPI-DSI driver support"
|
||||
depends on DRM_EXYNOS
|
||||
select DRM_MIPI_DSI
|
||||
select DRM_PANEL
|
||||
default n
|
||||
help
|
||||
This enables support for Exynos MIPI-DSI device.
|
||||
|
||||
config DRM_EXYNOS_DP
|
||||
bool "EXYNOS DRM DP driver support"
|
||||
depends on DRM_EXYNOS && ARCH_EXYNOS
|
||||
|
|
|
|||
|
|
@ -12,6 +12,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o
|
|||
exynosdrm-$(CONFIG_DRM_EXYNOS_DMABUF) += exynos_drm_dmabuf.o
|
||||
exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o
|
||||
exynosdrm-$(CONFIG_DRM_EXYNOS_DPI) += exynos_drm_dpi.o
|
||||
exynosdrm-$(CONFIG_DRM_EXYNOS_DSI) += exynos_drm_dsi.o
|
||||
exynosdrm-$(CONFIG_DRM_EXYNOS_DP) += exynos_dp_core.o exynos_dp_reg.o
|
||||
exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynos_mixer.o
|
||||
exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI) += exynos_drm_vidi.o
|
||||
|
|
|
|||
|
|
@ -1339,7 +1339,6 @@ static const struct of_device_id exynos_dp_match[] = {
|
|||
{ .compatible = "samsung,exynos5-dp" },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, exynos_dp_match);
|
||||
|
||||
struct platform_driver dp_driver = {
|
||||
.probe = exynos_dp_probe,
|
||||
|
|
|
|||
|
|
@ -450,6 +450,12 @@ static int __init exynos_drm_init(void)
|
|||
goto out_dp;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_DRM_EXYNOS_DSI
|
||||
ret = platform_driver_register(&dsi_driver);
|
||||
if (ret < 0)
|
||||
goto out_dsi;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_DRM_EXYNOS_FIMD
|
||||
ret = platform_driver_register(&fimd_driver);
|
||||
if (ret < 0)
|
||||
|
|
@ -566,6 +572,11 @@ out_hdmi:
|
|||
out_fimd:
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_DRM_EXYNOS_DSI
|
||||
platform_driver_unregister(&dsi_driver);
|
||||
out_dsi:
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_DRM_EXYNOS_DP
|
||||
platform_driver_unregister(&dp_driver);
|
||||
out_dp:
|
||||
|
|
@ -613,6 +624,10 @@ static void __exit exynos_drm_exit(void)
|
|||
platform_driver_unregister(&fimd_driver);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_DRM_EXYNOS_DSI
|
||||
platform_driver_unregister(&dsi_driver);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_DRM_EXYNOS_DP
|
||||
platform_driver_unregister(&dp_driver);
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -370,6 +370,7 @@ static inline int exynos_dpi_remove(struct device *dev) { return 0; }
|
|||
#endif
|
||||
|
||||
extern struct platform_driver dp_driver;
|
||||
extern struct platform_driver dsi_driver;
|
||||
extern struct platform_driver fimd_driver;
|
||||
extern struct platform_driver hdmi_driver;
|
||||
extern struct platform_driver mixer_driver;
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -237,6 +237,24 @@ static struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = {
|
|||
.fb_probe = exynos_drm_fbdev_create,
|
||||
};
|
||||
|
||||
bool exynos_drm_fbdev_is_anything_connected(struct drm_device *dev)
|
||||
{
|
||||
struct drm_connector *connector;
|
||||
bool ret = false;
|
||||
|
||||
mutex_lock(&dev->mode_config.mutex);
|
||||
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
|
||||
if (connector->status != connector_status_connected)
|
||||
continue;
|
||||
|
||||
ret = true;
|
||||
break;
|
||||
}
|
||||
mutex_unlock(&dev->mode_config.mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int exynos_drm_fbdev_init(struct drm_device *dev)
|
||||
{
|
||||
struct exynos_drm_fbdev *fbdev;
|
||||
|
|
@ -248,6 +266,9 @@ int exynos_drm_fbdev_init(struct drm_device *dev)
|
|||
if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
|
||||
return 0;
|
||||
|
||||
if (!exynos_drm_fbdev_is_anything_connected(dev))
|
||||
return 0;
|
||||
|
||||
fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
|
||||
if (!fbdev)
|
||||
return -ENOMEM;
|
||||
|
|
|
|||
|
|
@ -16,4 +16,18 @@ config DRM_PANEL_SIMPLE
|
|||
that it can be automatically turned off when the panel goes into a
|
||||
low power state.
|
||||
|
||||
config DRM_PANEL_LD9040
|
||||
tristate "LD9040 RGB/SPI panel"
|
||||
depends on DRM && DRM_PANEL
|
||||
depends on OF
|
||||
select SPI
|
||||
select VIDEOMODE_HELPERS
|
||||
|
||||
config DRM_PANEL_S6E8AA0
|
||||
tristate "S6E8AA0 DSI video mode panel"
|
||||
depends on DRM && DRM_PANEL
|
||||
depends on OF
|
||||
select DRM_MIPI_DSI
|
||||
select VIDEOMODE_HELPERS
|
||||
|
||||
endmenu
|
||||
|
|
|
|||
|
|
@ -1 +1,3 @@
|
|||
obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
|
||||
obj-$(CONFIG_DRM_PANEL_LD9040) += panel-ld9040.o
|
||||
obj-$(CONFIG_DRM_PANEL_S6E8AA0) += panel-s6e8aa0.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,376 @@
|
|||
/*
|
||||
* ld9040 AMOLED LCD drm_panel driver.
|
||||
*
|
||||
* Copyright (c) 2014 Samsung Electronics Co., Ltd
|
||||
* Derived from drivers/video/backlight/ld9040.c
|
||||
*
|
||||
* Andrzej Hajda <a.hajda@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <drm/drmP.h>
|
||||
#include <drm/drm_panel.h>
|
||||
|
||||
#include <linux/gpio/consumer.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
#include <linux/spi/spi.h>
|
||||
|
||||
#include <video/mipi_display.h>
|
||||
#include <video/of_videomode.h>
|
||||
#include <video/videomode.h>
|
||||
|
||||
/* Manufacturer Command Set */
|
||||
#define MCS_MANPWR 0xb0
|
||||
#define MCS_ELVSS_ON 0xb1
|
||||
#define MCS_USER_SETTING 0xf0
|
||||
#define MCS_DISPCTL 0xf2
|
||||
#define MCS_GTCON 0xf7
|
||||
#define MCS_PANEL_CONDITION 0xf8
|
||||
#define MCS_GAMMA_SET1 0xf9
|
||||
#define MCS_GAMMA_CTRL 0xfb
|
||||
|
||||
/* array of gamma tables for gamma value 2.2 */
|
||||
static u8 const ld9040_gammas[25][22] = {
|
||||
{ 0xf9, 0x00, 0x13, 0xb2, 0xba, 0xd2, 0x00, 0x30, 0x00, 0xaf, 0xc0,
|
||||
0xb8, 0xcd, 0x00, 0x3d, 0x00, 0xa8, 0xb8, 0xb7, 0xcd, 0x00, 0x44 },
|
||||
{ 0xf9, 0x00, 0x13, 0xb9, 0xb9, 0xd0, 0x00, 0x3c, 0x00, 0xaf, 0xbf,
|
||||
0xb6, 0xcb, 0x00, 0x4b, 0x00, 0xa8, 0xb9, 0xb5, 0xcc, 0x00, 0x52 },
|
||||
{ 0xf9, 0x00, 0x13, 0xba, 0xb9, 0xcd, 0x00, 0x41, 0x00, 0xb0, 0xbe,
|
||||
0xb5, 0xc9, 0x00, 0x51, 0x00, 0xa9, 0xb9, 0xb5, 0xca, 0x00, 0x57 },
|
||||
{ 0xf9, 0x00, 0x13, 0xb9, 0xb8, 0xcd, 0x00, 0x46, 0x00, 0xb1, 0xbc,
|
||||
0xb5, 0xc8, 0x00, 0x56, 0x00, 0xaa, 0xb8, 0xb4, 0xc9, 0x00, 0x5d },
|
||||
{ 0xf9, 0x00, 0x13, 0xba, 0xb8, 0xcb, 0x00, 0x4b, 0x00, 0xb3, 0xbc,
|
||||
0xb4, 0xc7, 0x00, 0x5c, 0x00, 0xac, 0xb8, 0xb4, 0xc8, 0x00, 0x62 },
|
||||
{ 0xf9, 0x00, 0x13, 0xbb, 0xb7, 0xca, 0x00, 0x4f, 0x00, 0xb4, 0xbb,
|
||||
0xb3, 0xc7, 0x00, 0x60, 0x00, 0xad, 0xb8, 0xb4, 0xc7, 0x00, 0x67 },
|
||||
{ 0xf9, 0x00, 0x47, 0xba, 0xb6, 0xca, 0x00, 0x53, 0x00, 0xb5, 0xbb,
|
||||
0xb3, 0xc6, 0x00, 0x65, 0x00, 0xae, 0xb8, 0xb3, 0xc7, 0x00, 0x6c },
|
||||
{ 0xf9, 0x00, 0x71, 0xbb, 0xb5, 0xc8, 0x00, 0x57, 0x00, 0xb5, 0xbb,
|
||||
0xb0, 0xc5, 0x00, 0x6a, 0x00, 0xae, 0xb9, 0xb1, 0xc6, 0x00, 0x70 },
|
||||
{ 0xf9, 0x00, 0x7b, 0xbb, 0xb4, 0xc8, 0x00, 0x5b, 0x00, 0xb5, 0xba,
|
||||
0xb1, 0xc4, 0x00, 0x6e, 0x00, 0xae, 0xb9, 0xb0, 0xc5, 0x00, 0x75 },
|
||||
{ 0xf9, 0x00, 0x82, 0xba, 0xb4, 0xc7, 0x00, 0x5f, 0x00, 0xb5, 0xba,
|
||||
0xb0, 0xc3, 0x00, 0x72, 0x00, 0xae, 0xb8, 0xb0, 0xc3, 0x00, 0x7a },
|
||||
{ 0xf9, 0x00, 0x89, 0xba, 0xb3, 0xc8, 0x00, 0x62, 0x00, 0xb6, 0xba,
|
||||
0xaf, 0xc3, 0x00, 0x76, 0x00, 0xaf, 0xb7, 0xae, 0xc4, 0x00, 0x7e },
|
||||
{ 0xf9, 0x00, 0x8b, 0xb9, 0xb3, 0xc7, 0x00, 0x65, 0x00, 0xb7, 0xb8,
|
||||
0xaf, 0xc3, 0x00, 0x7a, 0x00, 0x80, 0xb6, 0xae, 0xc4, 0x00, 0x81 },
|
||||
{ 0xf9, 0x00, 0x93, 0xba, 0xb3, 0xc5, 0x00, 0x69, 0x00, 0xb8, 0xb9,
|
||||
0xae, 0xc1, 0x00, 0x7f, 0x00, 0xb0, 0xb6, 0xae, 0xc3, 0x00, 0x85 },
|
||||
{ 0xf9, 0x00, 0x97, 0xba, 0xb2, 0xc5, 0x00, 0x6c, 0x00, 0xb8, 0xb8,
|
||||
0xae, 0xc1, 0x00, 0x82, 0x00, 0xb0, 0xb6, 0xae, 0xc2, 0x00, 0x89 },
|
||||
{ 0xf9, 0x00, 0x9a, 0xba, 0xb1, 0xc4, 0x00, 0x6f, 0x00, 0xb8, 0xb8,
|
||||
0xad, 0xc0, 0x00, 0x86, 0x00, 0xb0, 0xb7, 0xad, 0xc0, 0x00, 0x8d },
|
||||
{ 0xf9, 0x00, 0x9c, 0xb9, 0xb0, 0xc4, 0x00, 0x72, 0x00, 0xb8, 0xb8,
|
||||
0xac, 0xbf, 0x00, 0x8a, 0x00, 0xb0, 0xb6, 0xac, 0xc0, 0x00, 0x91 },
|
||||
{ 0xf9, 0x00, 0x9e, 0xba, 0xb0, 0xc2, 0x00, 0x75, 0x00, 0xb9, 0xb8,
|
||||
0xab, 0xbe, 0x00, 0x8e, 0x00, 0xb0, 0xb6, 0xac, 0xbf, 0x00, 0x94 },
|
||||
{ 0xf9, 0x00, 0xa0, 0xb9, 0xaf, 0xc3, 0x00, 0x77, 0x00, 0xb9, 0xb7,
|
||||
0xab, 0xbe, 0x00, 0x90, 0x00, 0xb0, 0xb6, 0xab, 0xbf, 0x00, 0x97 },
|
||||
{ 0xf9, 0x00, 0xa2, 0xb9, 0xaf, 0xc2, 0x00, 0x7a, 0x00, 0xb9, 0xb7,
|
||||
0xaa, 0xbd, 0x00, 0x94, 0x00, 0xb0, 0xb5, 0xab, 0xbf, 0x00, 0x9a },
|
||||
{ 0xf9, 0x00, 0xa4, 0xb9, 0xaf, 0xc1, 0x00, 0x7d, 0x00, 0xb9, 0xb6,
|
||||
0xaa, 0xbb, 0x00, 0x97, 0x00, 0xb1, 0xb5, 0xaa, 0xbf, 0x00, 0x9d },
|
||||
{ 0xf9, 0x00, 0xa4, 0xb8, 0xb0, 0xbf, 0x00, 0x80, 0x00, 0xb8, 0xb6,
|
||||
0xaa, 0xbc, 0x00, 0x9a, 0x00, 0xb0, 0xb5, 0xab, 0xbd, 0x00, 0xa0 },
|
||||
{ 0xf9, 0x00, 0xa8, 0xb8, 0xae, 0xbe, 0x00, 0x84, 0x00, 0xb9, 0xb7,
|
||||
0xa8, 0xbc, 0x00, 0x9d, 0x00, 0xb2, 0xb5, 0xaa, 0xbc, 0x00, 0xa4 },
|
||||
{ 0xf9, 0x00, 0xa9, 0xb6, 0xad, 0xbf, 0x00, 0x86, 0x00, 0xb8, 0xb5,
|
||||
0xa8, 0xbc, 0x00, 0xa0, 0x00, 0xb3, 0xb3, 0xa9, 0xbc, 0x00, 0xa7 },
|
||||
{ 0xf9, 0x00, 0xa9, 0xb7, 0xae, 0xbd, 0x00, 0x89, 0x00, 0xb7, 0xb6,
|
||||
0xa8, 0xba, 0x00, 0xa4, 0x00, 0xb1, 0xb4, 0xaa, 0xbb, 0x00, 0xaa },
|
||||
{ 0xf9, 0x00, 0xa7, 0xb4, 0xae, 0xbf, 0x00, 0x91, 0x00, 0xb2, 0xb4,
|
||||
0xaa, 0xbb, 0x00, 0xac, 0x00, 0xb3, 0xb1, 0xaa, 0xbc, 0x00, 0xb3 },
|
||||
};
|
||||
|
||||
struct ld9040 {
|
||||
struct device *dev;
|
||||
struct drm_panel panel;
|
||||
|
||||
struct regulator_bulk_data supplies[2];
|
||||
struct gpio_desc *reset_gpio;
|
||||
u32 power_on_delay;
|
||||
u32 reset_delay;
|
||||
struct videomode vm;
|
||||
u32 width_mm;
|
||||
u32 height_mm;
|
||||
|
||||
int brightness;
|
||||
|
||||
/* This field is tested by functions directly accessing bus before
|
||||
* transfer, transfer is skipped if it is set. In case of transfer
|
||||
* failure or unexpected response the field is set to error value.
|
||||
* Such construct allows to eliminate many checks in higher level
|
||||
* functions.
|
||||
*/
|
||||
int error;
|
||||
};
|
||||
|
||||
#define panel_to_ld9040(p) container_of(p, struct ld9040, panel)
|
||||
|
||||
static int ld9040_clear_error(struct ld9040 *ctx)
|
||||
{
|
||||
int ret = ctx->error;
|
||||
|
||||
ctx->error = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ld9040_spi_write_word(struct ld9040 *ctx, u16 data)
|
||||
{
|
||||
struct spi_device *spi = to_spi_device(ctx->dev);
|
||||
struct spi_transfer xfer = {
|
||||
.len = 2,
|
||||
.tx_buf = &data,
|
||||
};
|
||||
struct spi_message msg;
|
||||
|
||||
spi_message_init(&msg);
|
||||
spi_message_add_tail(&xfer, &msg);
|
||||
|
||||
return spi_sync(spi, &msg);
|
||||
}
|
||||
|
||||
static void ld9040_dcs_write(struct ld9040 *ctx, const u8 *data, size_t len)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
if (ctx->error < 0 || len == 0)
|
||||
return;
|
||||
|
||||
dev_dbg(ctx->dev, "writing dcs seq: %*ph\n", len, data);
|
||||
ret = ld9040_spi_write_word(ctx, *data);
|
||||
|
||||
while (!ret && --len) {
|
||||
++data;
|
||||
ret = ld9040_spi_write_word(ctx, *data | 0x100);
|
||||
}
|
||||
|
||||
if (ret) {
|
||||
dev_err(ctx->dev, "error %d writing dcs seq: %*ph\n", ret, len,
|
||||
data);
|
||||
ctx->error = ret;
|
||||
}
|
||||
|
||||
usleep_range(300, 310);
|
||||
}
|
||||
|
||||
#define ld9040_dcs_write_seq_static(ctx, seq...) \
|
||||
({\
|
||||
static const u8 d[] = { seq };\
|
||||
ld9040_dcs_write(ctx, d, ARRAY_SIZE(d));\
|
||||
})
|
||||
|
||||
static void ld9040_brightness_set(struct ld9040 *ctx)
|
||||
{
|
||||
ld9040_dcs_write(ctx, ld9040_gammas[ctx->brightness],
|
||||
ARRAY_SIZE(ld9040_gammas[ctx->brightness]));
|
||||
|
||||
ld9040_dcs_write_seq_static(ctx, MCS_GAMMA_CTRL, 0x02, 0x5a);
|
||||
}
|
||||
|
||||
static void ld9040_init(struct ld9040 *ctx)
|
||||
{
|
||||
ld9040_dcs_write_seq_static(ctx, MCS_USER_SETTING, 0x5a, 0x5a);
|
||||
ld9040_dcs_write_seq_static(ctx, MCS_PANEL_CONDITION,
|
||||
0x05, 0x65, 0x96, 0x71, 0x7d, 0x19, 0x3b, 0x0d,
|
||||
0x19, 0x7e, 0x0d, 0xe2, 0x00, 0x00, 0x7e, 0x7d,
|
||||
0x07, 0x07, 0x20, 0x20, 0x20, 0x02, 0x02);
|
||||
ld9040_dcs_write_seq_static(ctx, MCS_DISPCTL,
|
||||
0x02, 0x08, 0x08, 0x10, 0x10);
|
||||
ld9040_dcs_write_seq_static(ctx, MCS_MANPWR, 0x04);
|
||||
ld9040_dcs_write_seq_static(ctx, MCS_ELVSS_ON, 0x0d, 0x00, 0x16);
|
||||
ld9040_dcs_write_seq_static(ctx, MCS_GTCON, 0x09, 0x00, 0x00);
|
||||
ld9040_brightness_set(ctx);
|
||||
ld9040_dcs_write_seq_static(ctx, MIPI_DCS_EXIT_SLEEP_MODE);
|
||||
ld9040_dcs_write_seq_static(ctx, MIPI_DCS_SET_DISPLAY_ON);
|
||||
}
|
||||
|
||||
static int ld9040_power_on(struct ld9040 *ctx)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
msleep(ctx->power_on_delay);
|
||||
gpiod_set_value(ctx->reset_gpio, 0);
|
||||
msleep(ctx->reset_delay);
|
||||
gpiod_set_value(ctx->reset_gpio, 1);
|
||||
msleep(ctx->reset_delay);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ld9040_power_off(struct ld9040 *ctx)
|
||||
{
|
||||
return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
|
||||
}
|
||||
|
||||
static int ld9040_disable(struct drm_panel *panel)
|
||||
{
|
||||
struct ld9040 *ctx = panel_to_ld9040(panel);
|
||||
|
||||
msleep(120);
|
||||
ld9040_dcs_write_seq_static(ctx, MIPI_DCS_SET_DISPLAY_OFF);
|
||||
ld9040_dcs_write_seq_static(ctx, MIPI_DCS_ENTER_SLEEP_MODE);
|
||||
msleep(40);
|
||||
|
||||
ld9040_clear_error(ctx);
|
||||
|
||||
return ld9040_power_off(ctx);
|
||||
}
|
||||
|
||||
static int ld9040_enable(struct drm_panel *panel)
|
||||
{
|
||||
struct ld9040 *ctx = panel_to_ld9040(panel);
|
||||
int ret;
|
||||
|
||||
ret = ld9040_power_on(ctx);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ld9040_init(ctx);
|
||||
|
||||
ret = ld9040_clear_error(ctx);
|
||||
|
||||
if (ret < 0)
|
||||
ld9040_disable(panel);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ld9040_get_modes(struct drm_panel *panel)
|
||||
{
|
||||
struct drm_connector *connector = panel->connector;
|
||||
struct ld9040 *ctx = panel_to_ld9040(panel);
|
||||
struct drm_display_mode *mode;
|
||||
|
||||
mode = drm_mode_create(connector->dev);
|
||||
if (!mode) {
|
||||
DRM_ERROR("failed to create a new display mode\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
drm_display_mode_from_videomode(&ctx->vm, mode);
|
||||
mode->width_mm = ctx->width_mm;
|
||||
mode->height_mm = ctx->height_mm;
|
||||
connector->display_info.width_mm = mode->width_mm;
|
||||
connector->display_info.height_mm = mode->height_mm;
|
||||
|
||||
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
|
||||
drm_mode_probed_add(connector, mode);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static const struct drm_panel_funcs ld9040_drm_funcs = {
|
||||
.disable = ld9040_disable,
|
||||
.enable = ld9040_enable,
|
||||
.get_modes = ld9040_get_modes,
|
||||
};
|
||||
|
||||
static int ld9040_parse_dt(struct ld9040 *ctx)
|
||||
{
|
||||
struct device *dev = ctx->dev;
|
||||
struct device_node *np = dev->of_node;
|
||||
int ret;
|
||||
|
||||
ret = of_get_videomode(np, &ctx->vm, 0);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
of_property_read_u32(np, "power-on-delay", &ctx->power_on_delay);
|
||||
of_property_read_u32(np, "reset-delay", &ctx->reset_delay);
|
||||
of_property_read_u32(np, "panel-width-mm", &ctx->width_mm);
|
||||
of_property_read_u32(np, "panel-height-mm", &ctx->height_mm);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ld9040_probe(struct spi_device *spi)
|
||||
{
|
||||
struct device *dev = &spi->dev;
|
||||
struct ld9040 *ctx;
|
||||
int ret;
|
||||
|
||||
ctx = devm_kzalloc(dev, sizeof(struct ld9040), GFP_KERNEL);
|
||||
if (!ctx)
|
||||
return -ENOMEM;
|
||||
|
||||
spi_set_drvdata(spi, ctx);
|
||||
|
||||
ctx->dev = dev;
|
||||
ctx->brightness = ARRAY_SIZE(ld9040_gammas) - 1;
|
||||
|
||||
ret = ld9040_parse_dt(ctx);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ctx->supplies[0].supply = "vdd3";
|
||||
ctx->supplies[1].supply = "vci";
|
||||
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
|
||||
ctx->supplies);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ctx->reset_gpio = devm_gpiod_get(dev, "reset");
|
||||
if (IS_ERR(ctx->reset_gpio)) {
|
||||
dev_err(dev, "cannot get reset-gpios %ld\n",
|
||||
PTR_ERR(ctx->reset_gpio));
|
||||
return PTR_ERR(ctx->reset_gpio);
|
||||
}
|
||||
ret = gpiod_direction_output(ctx->reset_gpio, 1);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "cannot configure reset-gpios %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
spi->bits_per_word = 9;
|
||||
ret = spi_setup(spi);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "spi setup failed.\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
drm_panel_init(&ctx->panel);
|
||||
ctx->panel.dev = dev;
|
||||
ctx->panel.funcs = &ld9040_drm_funcs;
|
||||
|
||||
return drm_panel_add(&ctx->panel);
|
||||
}
|
||||
|
||||
static int ld9040_remove(struct spi_device *spi)
|
||||
{
|
||||
struct ld9040 *ctx = spi_get_drvdata(spi);
|
||||
|
||||
ld9040_power_off(ctx);
|
||||
drm_panel_remove(&ctx->panel);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct of_device_id ld9040_of_match[] = {
|
||||
{ .compatible = "samsung,ld9040" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, ld9040_of_match);
|
||||
|
||||
static struct spi_driver ld9040_driver = {
|
||||
.probe = ld9040_probe,
|
||||
.remove = ld9040_remove,
|
||||
.driver = {
|
||||
.name = "ld9040",
|
||||
.owner = THIS_MODULE,
|
||||
.of_match_table = ld9040_of_match,
|
||||
},
|
||||
};
|
||||
module_spi_driver(ld9040_driver);
|
||||
|
||||
MODULE_AUTHOR("Andrzej Hajda <a.hajda@samsung.com>");
|
||||
MODULE_DESCRIPTION("ld9040 LCD Driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -17,6 +17,11 @@
|
|||
struct mipi_dsi_host;
|
||||
struct mipi_dsi_device;
|
||||
|
||||
/* request ACK from peripheral */
|
||||
#define MIPI_DSI_MSG_REQ_ACK BIT(0)
|
||||
/* use Low Power Mode to transmit message */
|
||||
#define MIPI_DSI_MSG_USE_LPM BIT(1)
|
||||
|
||||
/**
|
||||
* struct mipi_dsi_msg - read/write DSI buffer
|
||||
* @channel: virtual channel id
|
||||
|
|
@ -29,6 +34,7 @@ struct mipi_dsi_device;
|
|||
struct mipi_dsi_msg {
|
||||
u8 channel;
|
||||
u8 type;
|
||||
u16 flags;
|
||||
|
||||
size_t tx_len;
|
||||
const void *tx_buf;
|
||||
|
|
|
|||
Loading…
Reference in New Issue