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/linux/drivers/gpu/drm/panel/
H A Dpanel-edp.c17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
46 * struct panel_delay - Describes delays for a simple panel.
59 * hpd_absent. While that works, it's non-ideal.
68 * This is T3-max on eDP timing diagrams or the delay from power on
79 * This is (T3+T4+T5+T6+T8)-min on eDP timing diagrams or after the
129 * This is (T6-min + max(T7-max, T8-min)) on eDP timing diagrams or
141 * This is T9-min (delay from backlight off to end of valid video
157 * This is T12-min on eDP timing diagrams.
163 * struct panel_desc - Describes a simple panel.
210 * struct edp_panel_entry - Maps panel ID to delay / panel name.
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/linux/Documentation/devicetree/bindings/display/connector/
H A Dhdmi-connector.yaml1 # 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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/linux/Documentation/devicetree/bindings/display/panel/
H A Dpanel-common.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
24 width-mm:
29 height-mm:
38 on the system (e.g. as an affixed label) or specified in the system's
39 documentation (e.g. in the user's manual).
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/linux/drivers/gpu/drm/tests/
H A Ddrm_connector_test.c1 // SPDX-License-Identifier: GPL-2.0
24 struct i2c_adapter ddc; member
73 strscpy(priv->ddc.name, "dummy-connector-ddc", sizeof(priv->ddc.name)); in drm_test_connector_init()
74 priv->ddc.owner = THIS_MODULE; in drm_test_connector_init()
75 priv->ddc.algo = &dummy_ddc_algorithm; in drm_test_connector_init()
76 priv->ddc.dev.parent = dev; in drm_test_connector_init()
78 ret = i2c_add_adapter(&priv->ddc); in drm_test_connector_init()
81 ret = kunit_add_action_or_reset(test, i2c_del_adapter_wrapper, &priv->ddc); in drm_test_connector_init()
84 test->priv = priv; in drm_test_connector_init()
94 struct drm_connector_init_priv *priv = test->priv; in drm_test_drmm_connector_init()
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/linux/drivers/gpu/drm/bridge/
H A Ddisplay-connector.c1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/media-bus-format.h>
39 return flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR ? 0 : -EINVAL; in display_connector_attach()
47 if (conn->hpd_gpio) { in display_connector_detect()
48 if (gpiod_get_value_cansleep(conn->hpd_gpio)) in display_connector_detect()
54 if (conn->bridge.ddc && drm_probe_ddc(conn->bridge.ddc)) in display_connector_detect()
57 switch (conn->bridge.type) { in display_connector_detect()
64 * For DVI and HDMI connectors a DDC probe failure indicates in display_connector_detect()
74 * Composite and S-Video connectors have no other detection in display_connector_detect()
77 * if drm_probe_ddc fails, as some cables don't wire the DDC in display_connector_detect()
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H A Dsil-sii8620.h1 /* SPDX-License-Identifier: GPL-2.0-only */
9 * Copyright (C) 2013-2014 Silicon Image, Inc.
243 /* LM DDC, default value: 0x80 */
252 /* DDC I2C Manual, default value: 0x03 */
263 /* DDC I2C Target Slave Address, default value: 0x00 */
267 /* DDC I2C Target Segment Address, default value: 0x00 */
270 /* DDC I2C Target Offset Address, default value: 0x00 */
273 /* DDC I2C Data In count #1, default value: 0x00 */
276 /* DDC I2C Data In count #2, default value: 0x00 */
280 /* DDC I2C Status, default value: 0x04 */
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/linux/Documentation/devicetree/bindings/display/samsung/
H A Dsamsung,exynos-hdmi.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/display/samsung/samsung,exynos-hdmi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Inki Dae <inki.dae@samsung.com>
11 - Seung-Woo Kim <sw0312.kim@samsung.com>
12 - Kyungmin Park <kyungmin.park@samsung.com>
13 - Krzysztof Kozlowski <krzk@kernel.org>
18 - samsung,exynos4210-hdmi
19 - samsung,exynos4212-hdmi
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/linux/drivers/video/fbdev/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
14 a well-defined interface, so the software doesn't need to know
15 anything about the low-level (hardware register) stuff.
21 On several non-X86 architectures, the frame buffer device is the
25 in the /dev directory, i.e. /dev/fb*.
29 and the Framebuffer-HOWTO at
30 <http://www.munted.org.uk/programming/Framebuffer-HOWTO-1.3.html> for more
40 are compiling a kernel for a non-x86 architecture.
45 (e.g. an accelerated X server) and that are not frame buffer
46 device-aware may cause unexpected results. If unsure, say N.
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/linux/Documentation/fb/
H A Dintel810.rst20 - Intel 810
21 - Intel 810E
22 - Intel 810-DC100
23 - Intel 815 Internal graphics only, 100Mhz FSB
24 - Intel 815 Internal graphics only
25 - Intel 815 Internal graphics and AGP
30 - Choice of using Discrete Video Timings, VESA Generalized Timing
33 - Supports a variable range of horizontal and vertical resolution and
37 - Supports color depths of 8, 16, 24 and 32 bits per pixel
39 - Supports pseudocolor, directcolor, or truecolor visuals
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/linux/drivers/gpu/drm/imx/ipuv3/
H A Dimx-ldb.c1 // SPDX-License-Identifier: GPL-2.0+
3 * i.MX drm driver - LVDS display bridge
11 #include <linux/media-bus-format.h>
13 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
36 #include "imx-drm.h"
38 #define DRIVER_NAME "imx-ldb"
73 struct i2c_adapter *ddc; member
84 return container_of(c, struct imx_ldb_encoder, connector)->channel; in con_to_imx_ldb_ch()
87 static inline struct imx_ldb_channel *enc_to_imx_ldb_ch(struct drm_encoder *e) in enc_to_imx_ldb_ch() argument
89 return container_of(e, struct imx_ldb_encoder, encoder)->channel; in enc_to_imx_ldb_ch()
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H A Dimx-tve.c1 // SPDX-License-Identifier: GPL-2.0+
3 * i.MX drm driver - Television Encoder (TVEv2)
8 #include <linux/clk-provider.h>
18 #include <video/imx-ipu-v3.h>
26 #include "imx-drm.h"
117 struct i2c_adapter *ddc; member
126 return container_of(c, struct imx_tve_encoder, connector)->tve; in con_to_tve()
129 static inline struct imx_tve *enc_to_tve(struct drm_encoder *e) in enc_to_tve() argument
131 return container_of(e, struct imx_tve_encoder, encoder)->tve; in enc_to_tve()
136 clk_prepare_enable(tve->clk); in tve_enable()
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/linux/drivers/gpu/drm/amd/display/dc/dce/
H A Ddce_i2c_hw.c32 dce_i2c_hw->ctx
34 dce_i2c_hw->regs->reg
38 dce_i2c_hw->shifts->field_name, dce_i2c_hw->masks->field_name
56 DC_I2C_TRANSACTION_COUNT, dce_i2c_hw->transaction_count - 1); in execute_transaction()
64 dce_i2c_hw->transaction_count = 0; in execute_transaction()
65 dce_i2c_hw->buffer_used_bytes = 0; in execute_transaction()
77 else if (value & dce_i2c_hw->masks->DC_I2C_SW_STOPPED_ON_NACK) in get_channel_status()
79 else if (value & dce_i2c_hw->masks->DC_I2C_SW_TIMEOUT) in get_channel_status()
81 else if (value & dce_i2c_hw->masks->DC_I2C_SW_ABORTED) in get_channel_status()
83 else if (value & dce_i2c_hw->masks->DC_I2C_SW_DONE) in get_channel_status()
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/linux/drivers/video/fbdev/i810/
H A Di810-i2c.c1 /*-*- linux-c -*-
2 * linux/drivers/video/i810-i2c.c -- Intel 810/815 I2C support
45 struct i810fb_par *par = chan->par; in i810i2c_setscl()
46 u8 __iomem *mmio = par->mmio_start_virtual; in i810i2c_setscl()
49 i810_writel(mmio, chan->ddc_base, SCL_DIR_MASK | SCL_VAL_MASK); in i810i2c_setscl()
51 i810_writel(mmio, chan->ddc_base, SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK); in i810i2c_setscl()
52 i810_readl(mmio, chan->ddc_base); /* flush posted write */ in i810i2c_setscl()
58 struct i810fb_par *par = chan->par; in i810i2c_setsda()
59 u8 __iomem *mmio = par->mmio_start_virtual; in i810i2c_setsda()
62 i810_writel(mmio, chan->ddc_base, SDA_DIR_MASK | SDA_VAL_MASK); in i810i2c_setsda()
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/linux/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_connectors.c2 * Copyright 2007-8 Advanced Micro Devices, Inc.
45 struct drm_device *dev = connector->dev; in amdgpu_connector_hotplug()
49 /* bail if the connector does not have hpd pin, e.g., in amdgpu_connector_hotplug()
52 if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE) in amdgpu_connector_hotplug()
55 amdgpu_display_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd); in amdgpu_connector_hotplug()
58 if (connector->dpms != DRM_MODE_DPMS_ON) in amdgpu_connector_hotplug()
62 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { in amdgpu_connector_hotplug()
64 amdgpu_connector->con_priv; in amdgpu_connector_hotplug()
67 if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT) in amdgpu_connector_hotplug()
71 dig_connector->dp_sink_type = amdgpu_atombios_dp_get_sinktype(amdgpu_connector); in amdgpu_connector_hotplug()
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/linux/arch/arm/boot/dts/nvidia/
H A Dtegra124-apalis-v1.2-eval.dts1 // SPDX-License-Identifier: GPL-2.0 OR MIT
3 * Copyright 2016-2018 Toradex AG
6 /dts-v1/;
8 #include <dt-bindings/input/input.h>
9 #include "tegra124-apalis-v1.2.dtsi"
13 compatible = "toradex,apalis-tk1-v1.2-eval", "toradex,apalis-tk1-eval",
14 "toradex,apalis-tk1-v1.2", "toradex,apalis-tk1",
28 stdout-path = "serial0:115200n8";
40 hdmi-supply = <&reg_5v0>;
46 pex-perst-n-hog {
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H A Dtegra124-apalis-eval.dts1 // SPDX-License-Identifier: GPL-2.0 OR X11
3 * Copyright 2016-2019 Toradex AG
6 /dts-v1/;
8 #include <dt-bindings/input/input.h>
9 #include "tegra124-apalis.dtsi"
13 compatible = "toradex,apalis-tk1-eval", "toradex,apalis-tk1",
27 stdout-path = "serial0:115200n8";
39 hdmi-supply = <&reg_5v0>;
45 pex-perst-n-hog {
46 gpio-hog;
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/linux/drivers/gpu/drm/sun4i/
H A Dsun4i_hdmi.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Maxime Ripard <maxime.ripard@free-electrons.com>
15 #include <media/cec-pin.h>
37 #define SUN4I_HDMI_VID_TIMING_X(x) ((((x) - 1) & GENMASK(11, 0)))
38 #define SUN4I_HDMI_VID_TIMING_Y(y) ((((y) - 1) & GENMASK(11, 0)) << 16)
135 #define SUN4I_HDMI_DDC_FIFO_CTRL_RX_THRES_MAX (BIT(4) - 1)
138 #define SUN4I_HDMI_DDC_FIFO_CTRL_TX_THRES_MAX (BIT(4) - 1)
143 #define SUN4I_HDMI_DDC_BYTE_COUNT_MAX (BIT(10) - 1)
187 /* DDC CLK bit fields are the same, but the formula is not */
226 /* DDC FIFO register offset */
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H A Dsun4i_hdmi_enc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Maxime Ripard <maxime.ripard@free-electrons.com>
37 #define drm_encoder_to_sun4i_hdmi(e) \ argument
38 container_of_const(e, struct sun4i_hdmi, encoder)
51 drm_err(connector->dev, in sun4i_hdmi_write_infoframe()
57 writeb(buffer[i], hdmi->base + SUN4I_HDMI_AVI_INFOFRAME_REG(i)); in sun4i_hdmi_write_infoframe()
71 val = readl(hdmi->base + SUN4I_HDMI_VID_CTRL_REG); in sun4i_hdmi_disable()
73 writel(val, hdmi->base + SUN4I_HDMI_VID_CTRL_REG); in sun4i_hdmi_disable()
75 clk_disable_unprepare(hdmi->tmds_clk); in sun4i_hdmi_disable()
81 struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; in sun4i_hdmi_enable()
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/linux/drivers/gpu/vga/
H A Dvga_switcheroo.c2 * vga_switcheroo.c - Support for laptop with dual GPU using one set of outputs
33 #include <linux/apple-gmux.h>
65 * while others can switch just the DDC lines. (To allow EDID probing
71 * handler to control the power state of the discrete GPU, its ->switchto
72 * callback is a no-op for obvious reasons. The discrete GPU is often equipped
86 * a client may alternatively request that the DDC lines are temporarily
88 * only the DDC lines and not the entire output avoids unnecessary
93 * struct vga_switcheroo_client - registered client
105 * interface is a no-op so as not to interfere with runtime pm
131 * struct vgasr_priv - vga_switcheroo private data
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/linux/drivers/gpu/drm/radeon/
H A Dradeon_connectors.c2 * Copyright 2007-8 Advanced Micro Devices, Inc.
42 struct drm_device *dev = connector->dev; in radeon_connector_hotplug()
43 struct radeon_device *rdev = dev->dev_private; in radeon_connector_hotplug()
46 /* bail if the connector does not have hpd pin, e.g., in radeon_connector_hotplug()
49 if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) in radeon_connector_hotplug()
52 radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd); in radeon_connector_hotplug()
56 if (connector->dpms != DRM_MODE_DPMS_ON) in radeon_connector_hotplug()
60 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { in radeon_connector_hotplug()
62 radeon_connector->con_priv; in radeon_connector_hotplug()
65 if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT) in radeon_connector_hotplug()
[all …]
/linux/drivers/gpu/drm/display/
H A Ddrm_bridge_connector.c1 // SPDX-License-Identifier: GPL-2.0+
44 * operation flags (&drm_bridge->ops) and bridge output type
45 * (&drm_bridge->type), as well as the DRM_BRIDGE_ATTACH_NO_CONNECTOR attach
50 * struct drm_bridge_connector - A connector backed by a chain of bridges
74 * hot-plug detection notification, if any (see &DRM_BRIDGE_OP_HPD).
103 /* -----------------------------------------------------------------------------
104 * Bridge Connector Hot-Plug Handling
115 drm_for_each_bridge_in_chain(bridge_connector->encoder, bridge) { in drm_bridge_connector_hpd_notify()
116 if (bridge->funcs->hpd_notify) in drm_bridge_connector_hpd_notify()
117 bridge->funcs->hpd_notify(bridge, status); in drm_bridge_connector_hpd_notify()
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/linux/include/linux/
H A Dvga_switcheroo.h2 * vga_switcheroo.h - Support for laptop with dual GPU using one set of outputs
39 * enum vga_switcheroo_handler_flags_t - handler flags bitmask
41 * DDC lines separately. This signals to clients that they should call
47 * skip the AUX handshake and set up its output with these pre-calibrated
59 * enum vga_switcheroo_state - client power state
76 * enum vga_switcheroo_client_id - client identifier
94 * struct vga_switcheroo_handler - handler callbacks
96 * Optional. This gets called when vga_switcheroo is enabled, i.e. when
102 * Mandatory. For muxless machines this should be a no-op. Returning 0
105 * @switch_ddc: switch DDC lines to given client.
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/linux/Documentation/userspace-api/media/v4l/
H A Dbiblio.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
10 CEA 608-E
14 :title: CEA-608-E R-2014 "Line 21 Data Services"
24 :title: EN 300 294 "625-line television Wide Screen Signalling (WSS)"
50 ISO 13818-1
54 :title: ITU-T Rec. H.222.0 | ISO/IEC 13818-1 "Information technology --- Generic coding of movi…
60 ISO 13818-2
64 :title: ITU-T Rec. H.262 | ISO/IEC 13818-2 "Information technology --- Generic coding of moving…
74 :title: ITU-R Recommendation BT.470-6 "Conventional Television Systems"
84 :title: ITU-R Recommendation BT.601-5 "Studio Encoding Parameters of Digital Television for Sta…
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/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mp-dhcom-pdk3.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 * DHCM-iMX8ML8-C160-R409-F1638-SPI16-GE-CAN2-SD-RTC-WBTA-ADC-T-RGB-CSI2-HS-I-01D2
7 * DHCOM PCB number: 660-100 or newer
8 * PDK3 PCB number: 669-100 or newer
11 /dts-v1/;
13 #include <dt-bindings/leds/common.h>
14 #include <dt-bindings/phy/phy-imx8-pcie.h>
15 #include "imx8mp-dhcom-som.dtsi"
19 compatible = "dh,imx8mp-dhcom-pdk3", "dh,imx8mp-dhcom-som",
23 stdout-path = &uart1;
[all …]
/linux/arch/mips/boot/dts/ingenic/
H A Dci20.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
5 #include <dt-bindings/clock/ingenic,tcu.h>
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/input/input.h>
8 #include <dt-bindings/interrupt-controller/irq.h>
9 #include <dt-bindings/regulator/active-semi,8865-regulator.h>
22 stdout-path = &uart4;
31 gpio-keys {
32 compatible = "gpio-keys";
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