drivers/gpu/drm/amd/amdgpu/atombios_dp.c

325

if (drm_dp_dpcd_read(&amdgpu_connector->ddc_bus->aux, DP_SINK_OUI, buf, 3) == 3)

drivers/gpu/drm/amd/amdgpu/atombios_dp.c

329

if (drm_dp_dpcd_read(&amdgpu_connector->ddc_bus->aux, DP_BRANCH_OUI, buf, 3) == 3)

drivers/gpu/drm/amd/amdgpu/atombios_dp.c

340

ret = drm_dp_dpcd_read(&amdgpu_connector->ddc_bus->aux,

drivers/gpu/drm/amd/amdgpu/atombios_dp.c

356

ret = drm_dp_dpcd_read(&amdgpu_connector->ddc_bus->aux, DP_DPCD_REV,

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

2789

ret = drm_dp_dpcd_read(mgr->aux, DP_GUID, buf, sizeof(buf));

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

584

return drm_dp_dpcd_read(&aconnector->dm_dp_aux.aux, address, data,

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

700

drm_dp_dpcd_read(aux, SYNAPTICS_RC_COMMAND, &rc_cmd, sizeof(rc_cmd));

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

708

drm_dp_dpcd_read(aux, SYNAPTICS_RC_RESULT, &rc_result, sizeof(rc_result));

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

713

drm_dp_dpcd_read(aux, SYNAPTICS_RC_DATA, data, length);

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

1811

if (drm_dp_dpcd_read(aux, DP_LINK_BW_SET, data, 16) != 16)

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

257

if (drm_dp_dpcd_read(port->mgr->aux, DP_BRANCH_VENDOR_SPECIFIC_START, &branch_vendor_data, 4) == 4) {

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

298

if (drm_dp_dpcd_read(aconnector->dsc_aux, DP_DSC_SUPPORT, dsc_caps, 16) < 0)

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

301

if (drm_dp_dpcd_read(aconnector->dsc_aux,

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

321

if (drm_dp_dpcd_read(aconnector->dsc_aux, DP_DOWNSTREAMPORT_PRESENT, &ds_port_present, 1) < 0) {

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

749

dret = drm_dp_dpcd_read(

drivers/gpu/drm/bridge/analogix/analogix-anx6345.c

133

err = drm_dp_dpcd_read(&anx6345->aux, DP_DPCD_REV,

drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c

646

err = drm_dp_dpcd_read(&anx78xx->aux, DP_DPCD_REV,

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

397

retval = drm_dp_dpcd_read(&dp->aux, DP_LANE0_1_STATUS, link_status, 2);

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

417

retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

463

retval = drm_dp_dpcd_read(&dp->aux, DP_LANE0_1_STATUS, link_status, 2);

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

472

retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

664

ret = drm_dp_dpcd_read(&dp->aux, DP_LANE0_1_STATUS, link_status,

drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c

1372

err = drm_dp_dpcd_read(&mhdp->aux, addr, dpcd, DP_RECEIVER_CAP_SIZE);

drivers/gpu/drm/bridge/ite-it6505.c

658

ret = drm_dp_dpcd_read(&it6505->aux, offset, dpcd, num);

drivers/gpu/drm/bridge/tc358767.c

843

ret = drm_dp_dpcd_read(&tc->aux, DP_DPCD_REV, tc->link.dpcd,

drivers/gpu/drm/bridge/ti-sn65dsi86.c

916

ret = drm_dp_dpcd_read(&pdata->aux, DP_SUPPORTED_LINK_RATES,

drivers/gpu/drm/display/drm_dp_aux_dev.c

166

res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo);

drivers/gpu/drm/display/drm_dp_helper.c

768

EXPORT_SYMBOL(drm_dp_dpcd_read);

drivers/gpu/drm/i915/display/intel_dp.c

3741

if (drm_dp_dpcd_read(&intel_dp->aux, DP_SOURCE_OUI, buf, sizeof(buf)) < 0)

drivers/gpu/drm/i915/display/intel_dp.c

3915

if (drm_dp_dpcd_read(&intel_dp->aux, DP_PCON_DSC_ENCODER,

drivers/gpu/drm/i915/display/intel_dp.c

4299

if (drm_dp_dpcd_read(aux, DP_DSC_SUPPORT, dsc_dpcd,

drivers/gpu/drm/i915/display/intel_dp.c

4533

drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,

drivers/gpu/drm/i915/display/intel_dp.c

4604

if (drm_dp_dpcd_read(&intel_dp->aux, DP_EDP_DPCD_REV,

drivers/gpu/drm/i915/display/intel_dp.c

4806

if (drm_dp_dpcd_read(&intel_dp->aux, DP_SINK_COUNT_ESI, esi, 3) != 3)

drivers/gpu/drm/i915/display/intel_dp.c

4814

return drm_dp_dpcd_read(&intel_dp->aux, DP_SINK_COUNT_ESI, esi, 4) == 4;

drivers/gpu/drm/i915/display/intel_dp.c

5329

if (drm_dp_dpcd_read(&intel_dp->aux, DP_LANE0_1_STATUS_ESI, link_status,

drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c

123

ret = drm_dp_dpcd_read(aux, INTEL_EDP_HDR_TCON_CAP0, tcon_cap, sizeof(tcon_cap));

drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c

200

if (drm_dp_dpcd_read(&intel_dp->aux, INTEL_EDP_BRIGHTNESS_NITS_LSB, buf,

drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c

449

ret = drm_dp_dpcd_read(&intel_dp->aux, DP_EDP_PANEL_TARGET_LUMINANCE_VALUE, buf,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

120

ret = drm_dp_dpcd_read(&dig_port->dp.aux, DP_AUX_HDCP_BINFO,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

137

ret = drm_dp_dpcd_read(aux, DP_AUX_HDCP_BCAPS,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

171

ret = drm_dp_dpcd_read(&dig_port->dp.aux, DP_AUX_HDCP_RI_PRIME,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

190

ret = drm_dp_dpcd_read(&dig_port->dp.aux, DP_AUX_HDCP_BSTATUS,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

212

ret = drm_dp_dpcd_read(&dig_port->dp.aux,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

236

ret = drm_dp_dpcd_read(&dig_port->dp.aux,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

264

ret = drm_dp_dpcd_read(&dig_port->dp.aux, DP_AUX_HDCP_BSTATUS,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

351

ret = drm_dp_dpcd_read(aux,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

499

ret = drm_dp_dpcd_read(aux,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

569

ret = drm_dp_dpcd_read(aux, offset,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

663

ret = drm_dp_dpcd_read(aux,

drivers/gpu/drm/i915/display/intel_dp_hdcp.c

99

ret = drm_dp_dpcd_read(&dig_port->dp.aux, DP_AUX_HDCP_BKSV, bksv,

drivers/gpu/drm/i915/display/intel_dp_link_training.c

868

drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,

drivers/gpu/drm/i915/display/intel_dp_test.c

131

status = drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_H_WIDTH_HI,

drivers/gpu/drm/i915/display/intel_dp_test.c

138

status = drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_V_HEIGHT_HI,

drivers/gpu/drm/i915/display/intel_lspcon.c

140

ret = drm_dp_dpcd_read(&intel_dp->aux, get_hdr_status_reg(lspcon),

drivers/gpu/drm/i915/display/intel_lspcon.c

341

ret = drm_dp_dpcd_read(aux, LSPCON_PARADE_AVI_IF_CTRL,

drivers/gpu/drm/i915/display/intel_lspcon.c

464

ret = drm_dp_dpcd_read(aux, reg, &val, 1);

drivers/gpu/drm/i915/display/intel_lspcon.c

481

ret = drm_dp_dpcd_read(aux, reg, &val, 1);

drivers/gpu/drm/i915/display/intel_lspcon.c

618

ret = drm_dp_dpcd_read(aux, reg, &val, 1);

drivers/gpu/drm/i915/display/intel_lspcon.c

633

ret = drm_dp_dpcd_read(aux, reg, &val, 1);

drivers/gpu/drm/i915/display/intel_psr.c

516

r = drm_dp_dpcd_read(&intel_dp->aux, DP_PSR2_SU_X_GRANULARITY, &w, sizeof(w));

drivers/gpu/drm/i915/display/intel_psr.c

527

r = drm_dp_dpcd_read(&intel_dp->aux, DP_PSR2_SU_Y_GRANULARITY, &y, 1);

drivers/gpu/drm/mediatek/mtk_dp.c

1641

drm_dp_dpcd_read(&mtk_dp->aux, DP_ADJUST_REQUEST_LANE0_1,

drivers/gpu/drm/mediatek/mtk_dp.c

1709

drm_dp_dpcd_read(&mtk_dp->aux, DP_ADJUST_REQUEST_LANE0_1,

drivers/gpu/drm/msm/dp/dp_link.c

323

rlen = drm_dp_dpcd_read(link->aux, addr, bp, len);

drivers/gpu/drm/msm/dp/dp_link.c

345

rlen = drm_dp_dpcd_read(link->aux, addr, bp, len);

drivers/gpu/drm/msm/dp/dp_link.c

364

rlen = drm_dp_dpcd_read(link->aux, addr, &bp, len);

drivers/gpu/drm/msm/dp/dp_link.c

913

drm_dp_dpcd_read(link->aux, DP_PSR_ERROR_STATUS, &status, 1);

drivers/gpu/drm/msm/dp/dp_link.c

931

drm_dp_dpcd_read(link->aux, DP_PSR_ESI, &status, 1);

drivers/gpu/drm/msm/dp/dp_panel.c

76

rlen = drm_dp_dpcd_read(panel->aux, DP_PSR_SUPPORT,

drivers/gpu/drm/nouveau/dispnv50/disp.c

1398

rc = drm_dp_dpcd_read(aux, DP_SINK_COUNT_ESI, esi, 8);

drivers/gpu/drm/nouveau/nouveau_backlight.c

252

ret = drm_dp_dpcd_read(&nv_conn->aux, DP_EDP_DPCD_REV, edp_dpcd,

drivers/gpu/drm/nouveau/nouveau_dp.c

104

ret = drm_dp_dpcd_read(aux, DP_SUPPORTED_LINK_RATES, rates, sizeof(rates));

drivers/gpu/drm/radeon/atombios_dp.c

373

if (drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_SINK_OUI, buf, 3) == 3)

drivers/gpu/drm/radeon/atombios_dp.c

377

if (drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_BRANCH_OUI, buf, 3) == 3)

drivers/gpu/drm/radeon/atombios_dp.c

388

ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_DPCD_REV, msg,

drivers/gpu/drm/tegra/dp.c

178

err = drm_dp_dpcd_read(aux, DP_DPCD_REV, dpcd, sizeof(dpcd));

drivers/gpu/drm/tegra/dp.c

241

err = drm_dp_dpcd_read(aux, DP_SUPPORTED_LINK_RATES,

drivers/gpu/drm/tegra/dp.c

488

err = drm_dp_dpcd_read(link->aux, DP_ADJUST_REQUEST_POST_CURSOR2,

drivers/gpu/drm/xlnx/zynqmp_dp.c

1700

ret = drm_dp_dpcd_read(&dp->aux, 0x0, dp->dpcd,

drivers/gpu/drm/xlnx/zynqmp_dp.c

2345

err = drm_dp_dpcd_read(&dp->aux, DP_SINK_COUNT, status,

include/drm/display/drm_dp_helper.h

552

ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,

include/drm/display/drm_dp_helper.h

570

return drm_dp_dpcd_read(aux, offset, valuep, 1);

include/drm/display/drm_dp_helper.h

595

ret = drm_dp_dpcd_read(aux, offset, buffer, size);