| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/i2c/ |
| D | i2c-mux-pinctrl.txt | 1 Pinctrl-based I2C Bus Mux
3 This binding describes an I2C bus multiplexer that uses pin multiplexing to
4 route the I2C signals, and represents the pin multiplexing configuration
7 +-----+ +-----+
9 +------------------------+ +-----+ +-----+
11 | /----|------+--------+
12 | +---+ +------+ | child bus A, on first set of pins
13 | |I2C|---|Pinmux| |
14 | +---+ +------+ | child bus B, on second set of pins
15 | \----|------+--------+--------+
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/i2c/ |
| D | i2c-mux-pinctrl.txt | 1 Pinctrl-based I2C Bus Mux
3 This binding describes an I2C bus multiplexer that uses pin multiplexing to
4 route the I2C signals, and represents the pin multiplexing configuration
7 +-----+ +-----+
9 +------------------------+ +-----+ +-----+
11 | /----|------+--------+
12 | +---+ +------+ | child bus A, on first set of pins
13 | |I2C|---|Pinmux| |
14 | +---+ +------+ | child bus B, on second set of pins
15 | \----|------+--------+--------+
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| /kernel/linux/linux-4.19/drivers/gpu/drm/bridge/ |
| D | dumb-vga-dac.c | 2 * Copyright (C) 2015-2016 Free Electrons
3 * Copyright (C) 2015-2016 NextThing Co
5 * Maxime Ripard <maxime.ripard@free-electrons.com>
27 struct i2c_adapter *ddc; member
49 if (IS_ERR(vga->ddc)) in dumb_vga_get_modes()
52 edid = drm_get_edid(connector, vga->ddc); in dumb_vga_get_modes()
65 * In case we cannot retrieve the EDIDs (broken or missing i2c in dumb_vga_get_modes()
66 * bus), fallback on the XGA standards in dumb_vga_get_modes()
86 * Even if we have an I2C bus, we can't assume that the cable in dumb_vga_connector_detect()
88 * wire the DDC pins, or the I2C bus might not be working at in dumb_vga_connector_detect()
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| D | ti-tfp410.c | 18 #include <linux/i2c.h>
31 struct i2c_adapter *ddc; member
56 if (!dvi->ddc) in tfp410_get_modes()
59 edid = drm_get_edid(connector, dvi->ddc); in tfp410_get_modes()
92 if (dvi->hpd) { in tfp410_connector_detect()
93 if (gpiod_get_value_cansleep(dvi->hpd)) in tfp410_connector_detect()
99 if (dvi->ddc) { in tfp410_connector_detect()
100 if (drm_probe_ddc(dvi->ddc)) in tfp410_connector_detect()
123 if (!bridge->encoder) { in tfp410_attach()
124 dev_err(dvi->dev, "Missing encoder\n"); in tfp410_attach()
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| /kernel/linux/linux-5.10/drivers/video/fbdev/matrox/ |
| D | i2c-matroxfb.c | 1 // SPDX-License-Identifier: GPL-2.0-only
6 * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
16 #include <linux/i2c.h>
18 #include <linux/i2c-algo-bit.h>
20 /* MGA-TVO I2C for G200, G400 */
23 /* primary head DDC for Mystique(?), G100, G200, G400 */
26 /* primary head DDC for Millennium, Millennium II */
29 /* secondary head DDC for G400 */
63 /* software I2C functions */
74 matroxfb_i2c_set(b->minfo, b->mask.data, state); in matroxfb_gpio_setsda()
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| /kernel/linux/linux-4.19/drivers/video/fbdev/matrox/ |
| D | i2c-matroxfb.c | 5 * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
15 #include <linux/i2c.h>
17 #include <linux/i2c-algo-bit.h>
19 /* MGA-TVO I2C for G200, G400 */
22 /* primary head DDC for Mystique(?), G100, G200, G400 */
25 /* primary head DDC for Millennium, Millennium II */
28 /* secondary head DDC for G400 */
62 /* software I2C functions */
73 matroxfb_i2c_set(b->minfo, b->mask.data, state); in matroxfb_gpio_setsda()
78 matroxfb_i2c_set(b->minfo, b->mask.clock, state); in matroxfb_gpio_setscl()
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| /kernel/linux/linux-5.10/drivers/gpu/drm/bridge/ |
| D | display-connector.c | 1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/i2c.h>
34 return flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR ? 0 : -EINVAL; in display_connector_attach()
42 if (conn->hpd_gpio) { in display_connector_detect()
43 if (gpiod_get_value_cansleep(conn->hpd_gpio)) in display_connector_detect()
49 if (conn->bridge.ddc && drm_probe_ddc(conn->bridge.ddc)) in display_connector_detect()
52 switch (conn->bridge.type) { in display_connector_detect()
59 * For DVI and HDMI connectors a DDC probe failure indicates in display_connector_detect()
69 * Composite and S-Video connectors have no other detection in display_connector_detect()
71 * an I2C bus, we can't assume that the cable is disconnected in display_connector_detect()
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/display/connector/ |
| D | vga-connector.txt | 6 - compatible: "vga-connector"
10 - label: a symbolic name for the connector corresponding to a hardware label
11 - ddc-i2c-bus: phandle to the I2C bus that is connected to VGA DDC
23 -------
26 compatible = "vga-connector";
29 ddc-i2c-bus = <&i2c3>;
33 remote-endpoint = <&adv7123_out>;
|
| D | dvi-connector.txt | 5 - compatible: "dvi-connector"
8 - label: a symbolic name for the connector
9 - ddc-i2c-bus: phandle to the i2c bus that is connected to DVI DDC
10 - analog: the connector has DVI analog pins
11 - digital: the connector has DVI digital pins
12 - dual-link: the connector has pins for DVI dual-link
13 - hpd-gpios: HPD GPIO number
16 - Video port for DVI input
21 -------
24 compatible = "dvi-connector";
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/display/mediatek/ |
| D | mediatek,hdmi.txt | 8 - compatible: Should be "mediatek,<chip>-hdmi".
9 - reg: Physical base address and length of the controller's registers
10 - interrupts: The interrupt signal from the function block.
11 - clocks: device clocks
12 See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
13 - clock-names: must contain "pixel", "pll", "bclk", and "spdif".
14 - phys: phandle link to the HDMI PHY node.
15 See Documentation/devicetree/bindings/phy/phy-bindings.txt for details.
16 - phy-names: must contain "hdmi"
17 - mediatek,syscon-hdmi: phandle link and register offset to the system
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/display/mediatek/ |
| D | mediatek,hdmi.txt | 8 - compatible: Should be "mediatek,<chip>-hdmi".
9 - the supported chips are mt2701, mt7623 and mt8173
10 - reg: Physical base address and length of the controller's registers
11 - interrupts: The interrupt signal from the function block.
12 - clocks: device clocks
13 See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
14 - clock-names: must contain "pixel", "pll", "bclk", and "spdif".
15 - phys: phandle link to the HDMI PHY node.
16 See Documentation/devicetree/bindings/phy/phy-bindings.txt for details.
17 - phy-names: must contain "hdmi"
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/display/imx/ |
| D | hdmi.txt | 9 following device-specific properties.
14 - compatible : Shall be one of "fsl,imx6q-hdmi" or "fsl,imx6dl-hdmi".
15 - reg: See dw_hdmi.txt.
16 - interrupts: HDMI interrupt number
17 - clocks: See dw_hdmi.txt.
18 - clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt.
19 - ports: See dw_hdmi.txt. The DWC HDMI shall have between one and four ports,
22 - gpr : Shall contain a phandle to the iomuxc-gpr region containing the HDMI
27 - ddc-i2c-bus: The HDMI DDC bus can be connected to either a system I2C master
28 or the functionally-reduced I2C master contained in the DWC HDMI. When
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/display/imx/ |
| D | hdmi.txt | 9 following device-specific properties.
14 - compatible : Shall be one of "fsl,imx6q-hdmi" or "fsl,imx6dl-hdmi".
15 - reg: See dw_hdmi.txt.
16 - interrupts: HDMI interrupt number
17 - clocks: See dw_hdmi.txt.
18 - clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt.
19 - ports: See dw_hdmi.txt. The DWC HDMI shall have between one and four ports,
22 - gpr : Shall contain a phandle to the iomuxc-gpr region containing the HDMI
27 - ddc-i2c-bus: The HDMI DDC bus can be connected to either a system I2C master
28 or the functionally-reduced I2C master contained in the DWC HDMI. When
[all …]
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/display/panel/ |
| D | simple-panel.txt | 5 ----------
8 - power-supply: See panel-common.txt
11 - ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
12 - enable-gpios: GPIO pin to enable or disable the panel
13 - backlight: phandle of the backlight device attached to the panel
19 ddc-i2c-bus = <&panelddc>;
21 power-supply = <&vdd_pnl_reg>;
22 enable-gpios = <&gpio 90 0>;
|
| D | panel-common.txt | 14 ----------------------
16 - width-mm,
17 - height-mm: The width-mm and height-mm specify the width and height of the
21 - label: The label property specifies a symbolic name for the panel as a
28 non-descriptive information. For instance an LCD panel in a system that
35 ---------------
37 - panel-timing: Most display panels are restricted to a single resolution and
38 require specific display timings. The panel-timing subnode expresses those
41 Documentation/devicetree/bindings/display/panel/display-timing.txt.
45 ------------
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/display/connector/ |
| D | vga-connector.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/display/connector/vga-connector.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
14 const: vga-connector
18 ddc-i2c-bus:
19 description: phandle link to the I2C controller used for DDC EDID probing
26 - compatible
27 - port
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| D | hdmi-connector.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/display/connector/hdmi-connector.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
14 const: hdmi-connector
19 - a # Standard full size
20 - b # Never deployed?
21 - c # Mini
22 - d # Micro
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| D | dvi-connector.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/display/connector/dvi-connector.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
14 const: dvi-connector
18 hpd-gpios:
22 ddc-i2c-bus:
23 description: phandle link to the I2C controller used for DDC EDID probing
34 dual-link:
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/display/rockchip/ |
| D | dw_hdmi-rockchip.txt | 9 following device-specific properties.
14 - compatible: should be one of the following:
15 "rockchip,rk3288-dw-hdmi"
16 "rockchip,rk3399-dw-hdmi"
17 - reg: See dw_hdmi.txt.
18 - reg-io-width: See dw_hdmi.txt. Shall be 4.
19 - interrupts: HDMI interrupt number
20 - clocks: See dw_hdmi.txt.
21 - clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt.
22 - ports: See dw_hdmi.txt. The DWC HDMI shall have a single port numbered 0
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| /kernel/linux/linux-4.19/drivers/gpu/drm/ |
| D | drm_dp_dual_mode_helper.c | 25 #include <linux/i2c.h>
37 * Adaptor registers (if any) and the sink DDC bus may be accessed via I2C.
40 * Adaptor registers and sink DDC bus can be accessed either via I2C or
41 * I2C-over-AUX. Source devices may choose to implement either of these
48 * drm_dp_dual_mode_read - Read from the DP dual mode adaptor register(s)
49 * @adapter: I2C adapter for the DDC bus
83 return -EPROTO; in drm_dp_dual_mode_read()
90 * drm_dp_dual_mode_write - Write to the DP dual mode adaptor register(s)
91 * @adapter: I2C adapter for the DDC bus
116 return -ENOMEM; in drm_dp_dual_mode_write()
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| /kernel/linux/linux-5.10/drivers/gpu/drm/ |
| D | drm_dp_dual_mode_helper.c | 26 #include <linux/i2c.h>
39 * Adaptor registers (if any) and the sink DDC bus may be accessed via I2C.
42 * Adaptor registers and sink DDC bus can be accessed either via I2C or
43 * I2C-over-AUX. Source devices may choose to implement either of these
50 * drm_dp_dual_mode_read - Read from the DP dual mode adaptor register(s)
51 * @adapter: I2C adapter for the DDC bus
85 return -EPROTO; in drm_dp_dual_mode_read()
92 * drm_dp_dual_mode_write - Write to the DP dual mode adaptor register(s)
93 * @adapter: I2C adapter for the DDC bus
118 return -ENOMEM; in drm_dp_dual_mode_write()
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/display/rockchip/ |
| D | dw_hdmi-rockchip.txt | 9 following device-specific properties.
14 - compatible: should be one of the following:
15 "rockchip,rk3228-dw-hdmi"
16 "rockchip,rk3288-dw-hdmi"
17 "rockchip,rk3328-dw-hdmi"
18 "rockchip,rk3399-dw-hdmi"
19 - reg: See dw_hdmi.txt.
20 - reg-io-width: See dw_hdmi.txt. Shall be 4.
21 - interrupts: HDMI interrupt number
22 - clocks: See dw_hdmi.txt.
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| /kernel/linux/linux-4.19/arch/arm/boot/dts/ |
| D | tegra20-tamonten.dtsi | 1 // SPDX-License-Identifier: GPL-2.0
9 rtc0 = "/i2c@7000d000/tps6586x@34";
15 stdout-path = "serial0:115200n8";
24 vdd-supply = <&hdmi_vdd_reg>;
25 pll-supply = <&hdmi_pll_reg>;
27 nvidia,ddc-i2c-bus = <&hdmi_ddc>;
28 nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7)
34 pinctrl-names = "default";
35 pinctrl-0 = <&state_default>;
212 nvidia,pins = "ddc", "dta", "dtd", "kbca",
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| D | tegra20-ventana.dts | 1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include <dt-bindings/input/input.h>
12 rtc0 = "/i2c@7000d000/tps6586x@34";
18 stdout-path = "serial0:115200n8";
37 vdd-supply = <&hdmi_vdd_reg>;
38 pll-supply = <&hdmi_pll_reg>;
40 nvidia,ddc-i2c-bus = <&hdmi_ddc>;
41 nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7)
47 pinctrl-names = "default";
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/display/tegra/ |
| D | nvidia,tegra20-host1x.txt | 4 - compatible: "nvidia,tegra<chip>-host1x"
5 - reg: Physical base address and length of the controller's registers.
6 For pre-Tegra186, one entry describing the whole register area.
7 For Tegra186, one entry for each entry in reg-names:
8 "vm" - VM region assigned to Linux
9 "hypervisor" - Hypervisor region (only if Linux acts as hypervisor)
10 - interrupts: The interrupt outputs from the controller.
11 - #address-cells: The number of cells used to represent physical base addresses
13 - #size-cells: The number of cells used to represent the size of an address
15 - ranges: The mapping of the host1x address space to the CPU address space.
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