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/linux/drivers/gpu/drm/mediatek/
H A Dmtk_hdmi_ddc_v2.c44 static int mtk_ddc_check_and_rise_low_bus(struct mtk_hdmi_ddc *ddc) in mtk_ddc_check_and_rise_low_bus() argument
48 regmap_read(ddc->regs, HDCP2X_DDCM_STATUS, &val); in mtk_ddc_check_and_rise_low_bus()
50 regmap_update_bits(ddc->regs, DDC_CTRL, DDC_CTRL_CMD, in mtk_ddc_check_and_rise_low_bus()
58 regmap_read(ddc->regs, DDC_CTRL, &ddc_ctrl); in mtk_ddc_check_and_rise_low_bus()
59 regmap_read(ddc->regs, HPD_DDC_CTRL, &hpd_ddc_ctrl); in mtk_ddc_check_and_rise_low_bus()
60 regmap_read(ddc->regs, HPD_DDC_STATUS, &hpd_ddc_status); in mtk_ddc_check_and_rise_low_bus()
69 static int mtk_ddcm_write_hdmi(struct mtk_hdmi_ddc *ddc, u16 addr_id, in mtk_ddcm_write_hdmi() argument
79 dev_err(ddc->dev, "Invalid DDCM write request\n"); in mtk_ddcm_write_hdmi()
84 mtk_ddc_check_and_rise_low_bus(ddc); in mtk_ddcm_write_hdmi()
86 regmap_update_bits(ddc->regs, HPD_DDC_CTRL, HPD_DDC_DELAY_CNT, in mtk_ddcm_write_hdmi()
[all …]
/linux/drivers/gpu/drm/amd/display/dc/gpio/
H A Dgpio_service.c488 struct ddc *dal_gpio_create_ddc( in dal_gpio_create_ddc()
496 struct ddc *ddc; in dal_gpio_create_ddc() local
501 ddc = kzalloc_obj(struct ddc); in dal_gpio_create_ddc()
503 if (!ddc) { in dal_gpio_create_ddc()
508 ddc->pin_data = dal_gpio_create( in dal_gpio_create_ddc()
511 if (!ddc->pin_data) { in dal_gpio_create_ddc()
516 ddc->pin_clock = dal_gpio_create( in dal_gpio_create_ddc()
519 if (!ddc->pin_clock) { in dal_gpio_create_ddc()
524 ddc->hw_info = *info; in dal_gpio_create_ddc()
526 ddc->ctx = service->ctx; in dal_gpio_create_ddc()
[all …]
H A Dhw_ddc.c39 ddc->shifts->field_name, ddc->masks->field_name
42 ddc->base.base.ctx
44 (ddc->regs->reg)
70 struct hw_ddc *ddc = HW_DDC_FROM_BASE(ptr); in set_config() local
77 hw_gpio = &ddc->base; in set_config()
89 switch (config_data->config.ddc.type) { in set_config()
139 if (config_data->config.ddc.data_en_bit_present || in set_config()
140 config_data->config.ddc.clock_en_bit_present) in set_config()
152 if (ddc->regs->dc_gpio_aux_ctrl_5 != 0) { in set_config()
156 if (ddc->regs->phy_aux_cntl != 0) { in set_config()
[all …]
/linux/drivers/gpu/drm/mgag200/
H A Dmgag200_ddc.c75 struct mgag200_ddc *ddc = data; in mgag200_ddc_algo_bit_data_setsda() local
77 mga_i2c_set(ddc->mdev, ddc->data, state); in mgag200_ddc_algo_bit_data_setsda()
82 struct mgag200_ddc *ddc = data; in mgag200_ddc_algo_bit_data_setscl() local
84 mga_i2c_set(ddc->mdev, ddc->clock, state); in mgag200_ddc_algo_bit_data_setscl()
89 struct mgag200_ddc *ddc = data; in mgag200_ddc_algo_bit_data_getsda() local
91 return (mga_i2c_read_gpio(ddc->mdev) & ddc->data) ? 1 : 0; in mgag200_ddc_algo_bit_data_getsda()
96 struct mgag200_ddc *ddc = data; in mgag200_ddc_algo_bit_data_getscl() local
98 return (mga_i2c_read_gpio(ddc->mdev) & ddc->clock) ? 1 : 0; in mgag200_ddc_algo_bit_data_getscl()
103 struct mgag200_ddc *ddc = i2c_get_adapdata(adapter); in mgag200_ddc_algo_bit_data_pre_xfer() local
104 struct mga_device *mdev = ddc->mdev; in mgag200_ddc_algo_bit_data_pre_xfer()
[all …]
/linux/drivers/gpu/drm/amd/display/dc/link/protocols/
H A Dlink_ddc.c168 static void ddc_service_destruct(struct ddc_service *ddc) in ddc_service_destruct() argument
170 if (ddc->ddc_pin) in ddc_service_destruct()
171 dal_gpio_destroy_ddc(&ddc->ddc_pin); in ddc_service_destruct()
174 void link_destroy_ddc_service(struct ddc_service **ddc) in link_destroy_ddc_service() argument
176 if (!ddc || !*ddc) { in link_destroy_ddc_service()
180 ddc_service_destruct(*ddc); in link_destroy_ddc_service()
181 kfree(*ddc); in link_destroy_ddc_service()
182 *ddc = NULL; in link_destroy_ddc_service()
186 struct ddc_service *ddc, in set_ddc_transaction_type() argument
189 ddc->transaction_type = type; in set_ddc_transaction_type()
[all …]
/linux/drivers/gpu/drm/ast/
H A Dast_ddc.c42 struct ast_ddc *ddc = data; in ast_ddc_algo_bit_data_setsda() local
43 struct ast_device *ast = ddc->ast; in ast_ddc_algo_bit_data_setsda()
58 struct ast_ddc *ddc = data; in ast_ddc_algo_bit_data_setscl() local
59 struct ast_device *ast = ddc->ast; in ast_ddc_algo_bit_data_setscl()
74 struct ast_ddc *ddc = i2c_get_adapdata(adapter); in ast_ddc_algo_bit_data_pre_xfer() local
75 struct ast_device *ast = ddc->ast; in ast_ddc_algo_bit_data_pre_xfer()
88 struct ast_ddc *ddc = i2c_get_adapdata(adapter); in ast_ddc_algo_bit_data_post_xfer() local
89 struct ast_device *ast = ddc->ast; in ast_ddc_algo_bit_data_post_xfer()
96 struct ast_ddc *ddc = data; in ast_ddc_algo_bit_data_getsda() local
97 struct ast_device *ast = ddc->ast; in ast_ddc_algo_bit_data_getsda()
[all …]
H A Dast_sil164.c84 struct i2c_adapter *ddc; in ast_sil164_output_init() local
90 /* DDC */ in ast_sil164_output_init()
92 ddc = ast_ddc_create(ast); in ast_sil164_output_init()
93 if (IS_ERR(ddc)) in ast_sil164_output_init()
94 return PTR_ERR(ddc); in ast_sil164_output_init()
110 DRM_MODE_CONNECTOR_DVII, ddc); in ast_sil164_output_init()
H A Dast_vga.c84 struct i2c_adapter *ddc; in ast_vga_output_init() local
90 /* DDC */ in ast_vga_output_init()
92 ddc = ast_ddc_create(ast); in ast_vga_output_init()
93 if (IS_ERR(ddc)) in ast_vga_output_init()
94 return PTR_ERR(ddc); in ast_vga_output_init()
110 DRM_MODE_CONNECTOR_VGA, ddc); in ast_vga_output_init()
/linux/Documentation/devicetree/bindings/display/mediatek/
H A Dmediatek,hdmi-ddc.yaml4 $id: http://devicetree.org/schemas/display/mediatek/mediatek,hdmi-ddc.yaml#
7 title: Mediatek HDMI DDC
14 The HDMI DDC i2c controller is used to interface with the HDMI DDC pins.
19 - mediatek,mt7623-hdmi-ddc
20 - mediatek,mt8167-hdmi-ddc
21 - mediatek,mt8173-hdmi-ddc
34 - const: ddc-i2c
51 compatible = "mediatek,mt8173-hdmi-ddc";
55 clock-names = "ddc-i2c";
/linux/drivers/gpu/drm/amd/display/dc/dce/
H A Ddce_i2c.c30 struct ddc_service *ddc, in dce_i2c_oem_device_present() argument
34 struct dc *dc = ddc->ctx->dc; in dce_i2c_oem_device_present()
56 struct ddc *ddc, in dce_i2c_submit_command() argument
62 if (!ddc) { in dce_i2c_submit_command()
72 dce_i2c_hw = acquire_i2c_hw_engine(pool, ddc); in dce_i2c_submit_command()
75 return dce_i2c_submit_command_hw(pool, ddc, cmd, dce_i2c_hw); in dce_i2c_submit_command()
77 dce_i2c_sw.ctx = ddc->ctx; in dce_i2c_submit_command()
78 if (dce_i2c_engine_acquire_sw(&dce_i2c_sw, ddc)) { in dce_i2c_submit_command()
79 return dce_i2c_submit_command_sw(pool, ddc, cmd, &dce_i2c_sw); in dce_i2c_submit_command()
H A Ddce_i2c_sw.h36 struct ddc *ddc; member
48 struct ddc *ddc,
54 struct ddc *ddc_handle);
/linux/drivers/gpu/drm/amd/display/dc/link/hwss/
H A Dlink_hwss_hpo_fixed_vs_pe_retimer_dp.c62 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_set_tx_ffe()
64 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_set_tx_ffe()
66 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_set_tx_ffe()
68 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_set_tx_ffe()
70 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_set_tx_ffe()
92 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_program_override_test_pattern()
94 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_program_override_test_pattern()
96 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_program_override_test_pattern()
98 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_program_override_test_pattern()
100 link->dc->link_srv->configure_fixed_vs_pe_retimer(link->ddc, in dp_hpo_fixed_vs_pe_retimer_program_override_test_pattern()
[all …]
/linux/drivers/gpu/drm/tegra/
H A Doutput.c39 else if (output->ddc) in tegra_output_connector_get_modes()
40 drm_edid = drm_edid_read_ddc(connector, output->ddc); in tegra_output_connector_get_modes()
99 struct device_node *ddc, *panel; in tegra_output_probe() local
127 ddc = of_parse_phandle(output->of_node, "nvidia,ddc-i2c-bus", 0); in tegra_output_probe()
128 if (ddc) { in tegra_output_probe()
129 output->ddc = of_get_i2c_adapter_by_node(ddc); in tegra_output_probe()
130 of_node_put(ddc); in tegra_output_probe()
132 if (!output->ddc) { in tegra_output_probe()
188 if (output->ddc) in tegra_output_probe()
189 i2c_put_adapter(output->ddc); in tegra_output_probe()
[all …]
/linux/drivers/gpu/drm/bridge/
H A Ddisplay-connector.c54 if (conn->bridge.ddc && drm_probe_ddc(conn->bridge.ddc)) in display_connector_detect()
64 * For DVI and HDMI connectors a DDC probe failure indicates in display_connector_detect()
77 * if drm_probe_ddc fails, as some cables don't wire the DDC in display_connector_detect()
95 return drm_edid_read_ddc(connector, conn->bridge.ddc); in display_connector_edid_read()
319 /* Retrieve the DDC I2C adapter for DVI, HDMI and VGA connectors. */ in display_connector_probe()
325 phandle = of_parse_phandle(pdev->dev.of_node, "ddc-i2c-bus", 0); in display_connector_probe()
327 conn->bridge.ddc = of_get_i2c_adapter_by_node(phandle); in display_connector_probe()
329 if (!conn->bridge.ddc) in display_connector_probe()
346 /* enable DDC */ in display_connector_probe()
350 conn->ddc_en = devm_gpiod_get_optional(&pdev->dev, "ddc-en", in display_connector_probe()
[all …]
/linux/drivers/gpu/drm/radeon/
H A Dradeon_connectors.c275 &radeon_connector->ddc_bus->aux.ddc); in radeon_connector_get_edid()
284 &radeon_connector->ddc_bus->aux.ddc); in radeon_connector_get_edid()
299 /* don't fetch the edid from the vbios if ddc fails and runpm is in radeon_connector_get_edid()
863 /* don't fetch the edid from the vbios if ddc fails and runpm is in radeon_lvds_detect()
1022 * with a shared ddc line (often vga + hdmi) in radeon_vga_detect()
1197 * Do a DDC probe, if DDC probe passes, get the full EDID so
1199 * If the monitor is an analog monitor or we got no DDC,
1201 * If we got no DDC, we do load detection on the DAC encoder object.
1202 * If we got analog DDC or load detection passes on the DAC encoder
1239 /* Sometimes the pins required for the DDC probe on DVI in radeon_dvi_detect()
[all …]
/linux/Documentation/devicetree/bindings/display/
H A Dallwinner,sun4i-a10-hdmi.yaml44 - description: The HDMI DDC clock
59 - const: ddc
68 - description: DDC Transmission DMA Channel
69 - description: DDC Reception DMA Channel
74 - const: ddc-tx
75 - const: ddc-rx
142 dma-names = "ddc-tx", "ddc-rx", "audio-tx";
/linux/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_connectors.c272 &amdgpu_connector->ddc_bus->aux.ddc); in amdgpu_connector_get_edid()
281 &amdgpu_connector->ddc_bus->aux.ddc); in amdgpu_connector_get_edid()
889 * with a shared ddc line (often vga + hdmi) in amdgpu_connector_vga_detect()
999 * Do a DDC probe, if DDC probe passes, get the full EDID so
1001 * If the monitor is an analog monitor or we got no DDC,
1003 * If we got no DDC, we do load detection on the DAC encoder object.
1004 * If we got analog DDC or load detection passes on the DAC encoder
1040 /* Sometimes the pins required for the DDC probe on DVI in amdgpu_connector_dvi_detect()
1042 * for HPD do. If the DDC probe fails even though we had an HPD in amdgpu_connector_dvi_detect()
1047 DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n"); in amdgpu_connector_dvi_detect()
[all …]
/linux/drivers/gpu/drm/amd/display/dc/link/
H A Dlink_detection.c288 struct ddc_service *ddc, in i2c_read() argument
310 .speed = ddc->ctx->dc->caps.i2c_speed_in_khz }; in i2c_read()
313 ddc->ctx, in i2c_read()
314 ddc->link, in i2c_read()
324 struct ddc_service *ddc, in query_dp_dual_mode_adaptor() argument
334 struct dc_link *link = ddc->link; in query_dp_dual_mode_adaptor()
342 ddc, in query_dp_dual_mode_adaptor()
348 if (i2c_read(ddc, in query_dp_dual_mode_adaptor()
359 CONN_DATA_DETECT(ddc->link, type2_dongle_buf, sizeof(type2_dongle_buf), in query_dp_dual_mode_adaptor()
408 CONN_DATA_DETECT(ddc->link, type2_dongle_buf, in query_dp_dual_mode_adaptor()
[all …]
/linux/drivers/gpu/drm/amd/display/dc/gpio/dce80/
H A Dhw_factory_dce80.c120 struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin); in define_ddc_registers() local
124 ddc->regs = &ddc_data_regs[en]; in define_ddc_registers()
125 ddc->base.regs = &ddc_data_regs[en].gpio; in define_ddc_registers()
128 ddc->regs = &ddc_clk_regs[en]; in define_ddc_registers()
129 ddc->base.regs = &ddc_clk_regs[en].gpio; in define_ddc_registers()
136 ddc->shifts = &ddc_shift; in define_ddc_registers()
137 ddc->masks = &ddc_mask; in define_ddc_registers()
/linux/drivers/gpu/drm/amd/display/dc/gpio/dce60/
H A Dhw_factory_dce60.c120 struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin); in define_ddc_registers() local
124 ddc->regs = &ddc_data_regs[en]; in define_ddc_registers()
125 ddc->base.regs = &ddc_data_regs[en].gpio; in define_ddc_registers()
128 ddc->regs = &ddc_clk_regs[en]; in define_ddc_registers()
129 ddc->base.regs = &ddc_clk_regs[en].gpio; in define_ddc_registers()
136 ddc->shifts = &ddc_shift; in define_ddc_registers()
137 ddc->masks = &ddc_mask; in define_ddc_registers()
/linux/drivers/gpu/drm/amd/display/dc/gpio/dce110/
H A Dhw_factory_dce110.c116 struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin); in define_ddc_registers() local
120 ddc->regs = &ddc_data_regs[en]; in define_ddc_registers()
121 ddc->base.regs = &ddc_data_regs[en].gpio; in define_ddc_registers()
124 ddc->regs = &ddc_clk_regs[en]; in define_ddc_registers()
125 ddc->base.regs = &ddc_clk_regs[en].gpio; in define_ddc_registers()
132 ddc->shifts = &ddc_shift; in define_ddc_registers()
133 ddc->masks = &ddc_mask; in define_ddc_registers()
/linux/drivers/gpu/drm/amd/display/dc/gpio/dce120/
H A Dhw_factory_dce120.c133 struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin); in define_ddc_registers() local
137 ddc->regs = &ddc_data_regs[en]; in define_ddc_registers()
138 ddc->base.regs = &ddc_data_regs[en].gpio; in define_ddc_registers()
141 ddc->regs = &ddc_clk_regs[en]; in define_ddc_registers()
142 ddc->base.regs = &ddc_clk_regs[en].gpio; in define_ddc_registers()
149 ddc->shifts = &ddc_shift; in define_ddc_registers()
150 ddc->masks = &ddc_mask; in define_ddc_registers()
/linux/drivers/video/fbdev/matrox/
H A Di2c-matroxfb.c23 /* primary head DDC for Mystique(?), G100, G200, G400 */
26 /* primary head DDC for Millennium, Millennium II */
29 /* secondary head DDC for G400 */
161 "DDC:fb%u #0"); in i2c_matroxfb_probe()
166 "DDC:fb%u #0"); in i2c_matroxfb_probe()
172 err = i2c_bus_reg(&m2info->ddc2, minfo, DDC2_DATA, DDC2_CLK, "DDC:fb%u #1"); in i2c_matroxfb_probe()
174 printk(KERN_INFO "i2c-matroxfb: VGA->TV plug detected, DDC unavailable.\n"); in i2c_matroxfb_probe()
196 printk(KERN_ERR "i2c-matroxfb: Could not register primary adapter DDC bus.\n"); in i2c_matroxfb_probe()
/linux/drivers/gpu/drm/i915/display/
H A Dintel_sdvo.c90 struct i2c_adapter ddc; member
101 struct intel_sdvo_ddc ddc[3]; member
2073 struct i2c_adapter *ddc = connector->ddc; in intel_sdvo_get_edid() local
2075 if (!ddc) in intel_sdvo_get_edid()
2078 return drm_edid_read_ddc(connector, ddc); in intel_sdvo_get_edid()
2081 /* Mac mini hack -- use the same DDC as the analog connector */
2086 struct i2c_adapter *ddc; in intel_sdvo_get_analog_edid() local
2088 ddc = intel_gmbus_get_adapter(display, display->vbt.crt_ddc_pin); in intel_sdvo_get_analog_edid()
2089 if (!ddc) in intel_sdvo_get_analog_edid()
2092 return drm_edid_read_ddc(connector, ddc); in intel_sdvo_get_analog_edid()
[all …]
/linux/drivers/gpu/drm/amd/display/dc/gpio/dcn10/
H A Dhw_factory_dcn10.c165 struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin); in define_ddc_registers() local
169 ddc->regs = &ddc_data_regs[en]; in define_ddc_registers()
170 ddc->base.regs = &ddc_data_regs[en].gpio; in define_ddc_registers()
173 ddc->regs = &ddc_clk_regs[en]; in define_ddc_registers()
174 ddc->base.regs = &ddc_clk_regs[en].gpio; in define_ddc_registers()
181 ddc->shifts = &ddc_shift; in define_ddc_registers()
182 ddc->masks = &ddc_mask; in define_ddc_registers()

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