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drm: xlnx: zynqmp_dpsub: Move DRM/KMS initialization to separate file
Start preparation for using the DPSUB as a standalone DisplayPort encoder without a display controller by moving the DRM/KMS initialization to a new zynqmp_kms.c file. No functional change intended. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
parent
88beb8ccc0
commit
76c8eeb72d
4 changed files with 93 additions and 41 deletions
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@ -1,2 +1,2 @@
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zynqmp-dpsub-y := zynqmp_disp.o zynqmp_dpsub.o zynqmp_dp.o
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zynqmp-dpsub-y := zynqmp_disp.o zynqmp_dpsub.o zynqmp_dp.o zynqmp_kms.o
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obj-$(CONFIG_DRM_ZYNQMP_DPSUB) += zynqmp-dpsub.o
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@ -17,9 +17,7 @@
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#include <linux/pm_runtime.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_bridge.h>
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#include <drm/drm_bridge_connector.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_device.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_fb_helper.h>
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@ -30,12 +28,12 @@
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#include <drm/drm_mode_config.h>
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#include <drm/drm_module.h>
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#include <drm/drm_probe_helper.h>
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#include <drm/drm_simple_kms_helper.h>
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#include <drm/drm_vblank.h>
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#include "zynqmp_disp.h"
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#include "zynqmp_dp.h"
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#include "zynqmp_dpsub.h"
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#include "zynqmp_kms.h"
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/* -----------------------------------------------------------------------------
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* Dumb Buffer & Framebuffer Allocation
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@ -98,8 +96,6 @@ static const struct drm_driver zynqmp_dpsub_drm_driver = {
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static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub)
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{
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struct drm_encoder *encoder = &dpsub->encoder;
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struct drm_connector *connector;
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struct drm_device *drm = &dpsub->drm;
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int ret;
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@ -120,43 +116,10 @@ static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub)
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drm_kms_helper_poll_init(drm);
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/*
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* Initialize the DISP and DP components. This will creates planes,
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* CRTC, and a bridge for the DP encoder.
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*/
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ret = zynqmp_disp_drm_init(dpsub);
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if (ret)
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ret = zynqmp_dpsub_kms_init(dpsub);
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if (ret < 0)
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goto err_poll_fini;
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ret = zynqmp_dp_drm_init(dpsub);
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if (ret)
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goto err_poll_fini;
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/* Create the encoder and attach the bridge. */
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encoder->possible_crtcs |= zynqmp_disp_get_crtc_mask(dpsub->disp);
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drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_NONE);
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ret = drm_bridge_attach(encoder, dpsub->bridge, NULL,
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DRM_BRIDGE_ATTACH_NO_CONNECTOR);
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if (ret) {
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dev_err(dpsub->dev, "failed to attach bridge to encoder\n");
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goto err_poll_fini;
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}
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/* Create the connector for the chain of bridges. */
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connector = drm_bridge_connector_init(drm, encoder);
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if (IS_ERR(connector)) {
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dev_err(dpsub->dev, "failed to created connector\n");
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ret = PTR_ERR(connector);
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goto err_poll_fini;
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}
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ret = drm_connector_attach_encoder(connector, encoder);
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if (ret < 0) {
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dev_err(dpsub->dev, "failed to attach connector to encoder\n");
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goto err_poll_fini;
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}
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/* Reset all components and register the DRM device. */
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drm_mode_config_reset(drm);
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70
drivers/gpu/drm/xlnx/zynqmp_kms.c
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70
drivers/gpu/drm/xlnx/zynqmp_kms.c
Normal file
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@ -0,0 +1,70 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* ZynqMP DisplayPort Subsystem - KMS API
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*
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* Copyright (C) 2017 - 2021 Xilinx, Inc.
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*
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* Authors:
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* - Hyun Woo Kwon <hyun.kwon@xilinx.com>
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* - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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*/
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#include <drm/drm_bridge.h>
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#include <drm/drm_bridge_connector.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_simple_kms_helper.h>
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#include "zynqmp_disp.h"
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#include "zynqmp_dp.h"
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#include "zynqmp_dpsub.h"
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#include "zynqmp_kms.h"
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/* -----------------------------------------------------------------------------
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* Initialization
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*/
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int zynqmp_dpsub_kms_init(struct zynqmp_dpsub *dpsub)
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{
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struct drm_encoder *encoder = &dpsub->encoder;
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struct drm_connector *connector;
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int ret;
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/*
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* Initialize the DISP and DP components. This will creates planes,
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* CRTC, and a bridge for the DP encoder.
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*/
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ret = zynqmp_disp_drm_init(dpsub);
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if (ret)
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return ret;
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ret = zynqmp_dp_drm_init(dpsub);
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if (ret)
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return ret;
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/* Create the encoder and attach the bridge. */
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encoder->possible_crtcs |= zynqmp_disp_get_crtc_mask(dpsub->disp);
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drm_simple_encoder_init(&dpsub->drm, encoder, DRM_MODE_ENCODER_NONE);
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ret = drm_bridge_attach(encoder, dpsub->bridge, NULL,
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DRM_BRIDGE_ATTACH_NO_CONNECTOR);
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if (ret) {
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dev_err(dpsub->dev, "failed to attach bridge to encoder\n");
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return ret;
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}
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/* Create the connector for the chain of bridges. */
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connector = drm_bridge_connector_init(&dpsub->drm, encoder);
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if (IS_ERR(connector)) {
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dev_err(dpsub->dev, "failed to created connector\n");
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return PTR_ERR(connector);
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}
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ret = drm_connector_attach_encoder(connector, encoder);
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if (ret < 0) {
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dev_err(dpsub->dev, "failed to attach connector to encoder\n");
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return ret;
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}
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return 0;
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}
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19
drivers/gpu/drm/xlnx/zynqmp_kms.h
Normal file
19
drivers/gpu/drm/xlnx/zynqmp_kms.h
Normal file
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@ -0,0 +1,19 @@
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* ZynqMP DisplayPort Subsystem - KMS API
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*
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* Copyright (C) 2017 - 2021 Xilinx, Inc.
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*
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* Authors:
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* - Hyun Woo Kwon <hyun.kwon@xilinx.com>
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* - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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*/
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#ifndef _ZYNQMP_KMS_H_
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#define _ZYNQMP_KMS_H_
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struct zynqmp_dpsub;
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int zynqmp_dpsub_kms_init(struct zynqmp_dpsub *dpsub);
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#endif /* _ZYNQMP_KMS_H_ */
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