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drm/mediatek: Add ovl_adaptor support for MT8195

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Add ovl_adaptor driver for MT8195.
Ovl_adaptor is an encapsulated module and designed for simplified
DRM control flow. This module is composed of 8 RDMAs, 4 MERGEs and
an ETHDR. Two RDMAs merge into one layer, so this module support 4
layers.

Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230321121859.2355-4-nancy.lin@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
Nancy.Lin 2023-03-21 20:18:55 +08:00 committed by Chun-Kuang Hu
parent d886c0009b
commit 453c336463
4 changed files with 561 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/gpu/drm/mediatek/Makefile
View file

@ -6,6 +6,7 @@ mediatek-drm-y := mtk_disp_aal.o \
mtk_disp_gamma.o \ mtk_disp_gamma.o \
mtk_disp_merge.o \ mtk_disp_merge.o \
mtk_disp_ovl.o \ mtk_disp_ovl.o \
mtk_disp_ovl_adaptor.o \
mtk_disp_rdma.o \ mtk_disp_rdma.o \
mtk_drm_crtc.o \ mtk_drm_crtc.o \
mtk_drm_ddp_comp.o \ mtk_drm_ddp_comp.o \

26
drivers/gpu/drm/mediatek/mtk_disp_drv.h
View file

@ -7,6 +7,8 @@
#define _MTK_DISP_DRV_H_ #define _MTK_DISP_DRV_H_
#include <linux/soc/mediatek/mtk-cmdq.h> #include <linux/soc/mediatek/mtk-cmdq.h>
#include <linux/soc/mediatek/mtk-mmsys.h>
#include <linux/soc/mediatek/mtk-mutex.h>
#include "mtk_drm_plane.h" #include "mtk_drm_plane.h"
#include "mtk_mdp_rdma.h" #include "mtk_mdp_rdma.h"
@ -99,6 +101,30 @@ void mtk_ovl_disable_vblank(struct device *dev);
const u32 *mtk_ovl_get_formats(struct device *dev); const u32 *mtk_ovl_get_formats(struct device *dev);
size_t mtk_ovl_get_num_formats(struct device *dev); size_t mtk_ovl_get_num_formats(struct device *dev);
void mtk_ovl_adaptor_add_comp(struct device *dev, struct mtk_mutex *mutex);
void mtk_ovl_adaptor_remove_comp(struct device *dev, struct mtk_mutex *mutex);
void mtk_ovl_adaptor_connect(struct device *dev, struct device *mmsys_dev,
unsigned int next);
void mtk_ovl_adaptor_disconnect(struct device *dev, struct device *mmsys_dev,
unsigned int next);
int mtk_ovl_adaptor_clk_enable(struct device *dev);
void mtk_ovl_adaptor_clk_disable(struct device *dev);
void mtk_ovl_adaptor_config(struct device *dev, unsigned int w,
unsigned int h, unsigned int vrefresh,
unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,
struct mtk_plane_state *state,
struct cmdq_pkt *cmdq_pkt);
void mtk_ovl_adaptor_register_vblank_cb(struct device *dev, void (*vblank_cb)(void *),
void *vblank_cb_data);
void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev);
void mtk_ovl_adaptor_enable_vblank(struct device *dev);
void mtk_ovl_adaptor_disable_vblank(struct device *dev);
void mtk_ovl_adaptor_start(struct device *dev);
void mtk_ovl_adaptor_stop(struct device *dev);
unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev);
struct device *mtk_ovl_adaptor_dma_dev_get(struct device *dev);
void mtk_rdma_bypass_shadow(struct device *dev); void mtk_rdma_bypass_shadow(struct device *dev);
int mtk_rdma_clk_enable(struct device *dev); int mtk_rdma_clk_enable(struct device *dev);
void mtk_rdma_clk_disable(struct device *dev); void mtk_rdma_clk_disable(struct device *dev);

533
drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c Normal file
View file

@ -0,0 +1,533 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021 MediaTek Inc.
*/
#include <drm/drm_fourcc.h>
#include <drm/drm_of.h>
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <linux/soc/mediatek/mtk-cmdq.h>
#include <linux/soc/mediatek/mtk-mmsys.h>
#include <linux/soc/mediatek/mtk-mutex.h>
#include "mtk_disp_drv.h"
#include "mtk_drm_crtc.h"
#include "mtk_drm_ddp_comp.h"
#include "mtk_drm_drv.h"
#include "mtk_ethdr.h"
#define MTK_OVL_ADAPTOR_RDMA_MAX_WIDTH 1920
#define MTK_OVL_ADAPTOR_LAYER_NUM 4
enum mtk_ovl_adaptor_comp_type {
OVL_ADAPTOR_TYPE_RDMA = 0,
OVL_ADAPTOR_TYPE_MERGE,
OVL_ADAPTOR_TYPE_ETHDR,
OVL_ADAPTOR_TYPE_NUM,
};
enum mtk_ovl_adaptor_comp_id {
OVL_ADAPTOR_MDP_RDMA0,
OVL_ADAPTOR_MDP_RDMA1,
OVL_ADAPTOR_MDP_RDMA2,
OVL_ADAPTOR_MDP_RDMA3,
OVL_ADAPTOR_MDP_RDMA4,
OVL_ADAPTOR_MDP_RDMA5,
OVL_ADAPTOR_MDP_RDMA6,
OVL_ADAPTOR_MDP_RDMA7,
OVL_ADAPTOR_MERGE0,
OVL_ADAPTOR_MERGE1,
OVL_ADAPTOR_MERGE2,
OVL_ADAPTOR_MERGE3,
OVL_ADAPTOR_ETHDR0,
OVL_ADAPTOR_ID_MAX
};
struct ovl_adaptor_comp_match {
enum mtk_ovl_adaptor_comp_type type;
int alias_id;
};
struct mtk_disp_ovl_adaptor {
struct device *ovl_adaptor_comp[OVL_ADAPTOR_ID_MAX];
struct device *mmsys_dev;
bool children_bound;
};
static const char * const private_comp_stem[OVL_ADAPTOR_TYPE_NUM] = {
[OVL_ADAPTOR_TYPE_RDMA] = "vdo1-rdma",
[OVL_ADAPTOR_TYPE_MERGE] = "merge",
[OVL_ADAPTOR_TYPE_ETHDR] = "ethdr",
};
static const struct ovl_adaptor_comp_match comp_matches[OVL_ADAPTOR_ID_MAX] = {
[OVL_ADAPTOR_MDP_RDMA0] = { OVL_ADAPTOR_TYPE_RDMA, 0 },
[OVL_ADAPTOR_MDP_RDMA1] = { OVL_ADAPTOR_TYPE_RDMA, 1 },
[OVL_ADAPTOR_MDP_RDMA2] = { OVL_ADAPTOR_TYPE_RDMA, 2 },
[OVL_ADAPTOR_MDP_RDMA3] = { OVL_ADAPTOR_TYPE_RDMA, 3 },
[OVL_ADAPTOR_MDP_RDMA4] = { OVL_ADAPTOR_TYPE_RDMA, 4 },
[OVL_ADAPTOR_MDP_RDMA5] = { OVL_ADAPTOR_TYPE_RDMA, 5 },
[OVL_ADAPTOR_MDP_RDMA6] = { OVL_ADAPTOR_TYPE_RDMA, 6 },
[OVL_ADAPTOR_MDP_RDMA7] = { OVL_ADAPTOR_TYPE_RDMA, 7 },
[OVL_ADAPTOR_MERGE0] = { OVL_ADAPTOR_TYPE_MERGE, 1 },
[OVL_ADAPTOR_MERGE1] = { OVL_ADAPTOR_TYPE_MERGE, 2 },
[OVL_ADAPTOR_MERGE2] = { OVL_ADAPTOR_TYPE_MERGE, 3 },
[OVL_ADAPTOR_MERGE3] = { OVL_ADAPTOR_TYPE_MERGE, 4 },
[OVL_ADAPTOR_ETHDR0] = { OVL_ADAPTOR_TYPE_ETHDR, 0 },
};
void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,
struct mtk_plane_state *state,
struct cmdq_pkt *cmdq_pkt)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
struct mtk_plane_pending_state *pending = &state->pending;
struct mtk_mdp_rdma_cfg rdma_config = {0};
struct device *rdma_l;
struct device *rdma_r;
struct device *merge;
struct device *ethdr;
const struct drm_format_info *fmt_info = drm_format_info(pending->format);
bool use_dual_pipe = false;
unsigned int align_width;
unsigned int l_w = 0;
unsigned int r_w = 0;
dev_dbg(dev, "%s+ idx:%d, enable:%d, fmt:0x%x\n", __func__, idx,
pending->enable, pending->format);
dev_dbg(dev, "addr 0x%pad, fb w:%d, {%d,%d,%d,%d}\n",
&pending->addr, (pending->pitch / fmt_info->cpp[0]),
pending->x, pending->y, pending->width, pending->height);
rdma_l = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx];
rdma_r = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx + 1];
merge = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MERGE0 + idx];
ethdr = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0];
if (!pending->enable) {
mtk_merge_stop_cmdq(merge, cmdq_pkt);
mtk_mdp_rdma_stop(rdma_l, cmdq_pkt);
mtk_mdp_rdma_stop(rdma_r, cmdq_pkt);
mtk_ethdr_layer_config(ethdr, idx, state, cmdq_pkt);
return;
}
/* ETHDR is in 1T2P domain, width needs to be 2 pixels align */
align_width = ALIGN_DOWN(pending->width, 2);
if (align_width > MTK_OVL_ADAPTOR_RDMA_MAX_WIDTH)
use_dual_pipe = true;
if (use_dual_pipe) {
l_w = (align_width / 2) + ((pending->width / 2) % 2);
r_w = align_width - l_w;
} else {
l_w = align_width;
}
mtk_merge_advance_config(merge, l_w, r_w, pending->height, 0, 0, cmdq_pkt);
mtk_mmsys_merge_async_config(ovl_adaptor->mmsys_dev, idx, align_width / 2,
pending->height, cmdq_pkt);
rdma_config.width = l_w;
rdma_config.height = pending->height;
rdma_config.addr0 = pending->addr;
rdma_config.pitch = pending->pitch;
rdma_config.fmt = pending->format;
rdma_config.color_encoding = pending->color_encoding;
mtk_mdp_rdma_config(rdma_l, &rdma_config, cmdq_pkt);
if (use_dual_pipe) {
rdma_config.x_left = l_w;
rdma_config.width = r_w;
mtk_mdp_rdma_config(rdma_r, &rdma_config, cmdq_pkt);
}
mtk_merge_start_cmdq(merge, cmdq_pkt);
mtk_mdp_rdma_start(rdma_l, cmdq_pkt);
if (use_dual_pipe)
mtk_mdp_rdma_start(rdma_r, cmdq_pkt);
else
mtk_mdp_rdma_stop(rdma_r, cmdq_pkt);
mtk_ethdr_layer_config(ethdr, idx, state, cmdq_pkt);
}
void mtk_ovl_adaptor_config(struct device *dev, unsigned int w,
unsigned int h, unsigned int vrefresh,
unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
mtk_ethdr_config(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0], w, h,
vrefresh, bpc, cmdq_pkt);
}
void mtk_ovl_adaptor_start(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
mtk_ethdr_start(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
}
void mtk_ovl_adaptor_stop(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
mtk_ethdr_stop(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
}
int mtk_ovl_adaptor_clk_enable(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
struct device *comp;
int ret;
int i;
for (i = 0; i < OVL_ADAPTOR_MERGE0; i++) {
comp = ovl_adaptor->ovl_adaptor_comp[i];
ret = pm_runtime_get_sync(comp);
if (ret < 0) {
dev_err(dev, "Failed to enable power domain %d, err %d\n", i, ret);
goto pwr_err;
}
}
for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
comp = ovl_adaptor->ovl_adaptor_comp[i];
if (i < OVL_ADAPTOR_MERGE0)
ret = mtk_mdp_rdma_clk_enable(comp);
else if (i < OVL_ADAPTOR_ETHDR0)
ret = mtk_merge_clk_enable(comp);
else
ret = mtk_ethdr_clk_enable(comp);
if (ret) {
dev_err(dev, "Failed to enable clock %d, err %d\n", i, ret);
goto clk_err;
}
}
return ret;
clk_err:
while (--i >= 0) {
comp = ovl_adaptor->ovl_adaptor_comp[i];
if (i < OVL_ADAPTOR_MERGE0)
mtk_mdp_rdma_clk_disable(comp);
else if (i < OVL_ADAPTOR_ETHDR0)
mtk_merge_clk_disable(comp);
else
mtk_ethdr_clk_disable(comp);
}
i = OVL_ADAPTOR_MERGE0;
pwr_err:
while (--i >= 0)
pm_runtime_put(ovl_adaptor->ovl_adaptor_comp[i]);
return ret;
}
void mtk_ovl_adaptor_clk_disable(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
struct device *comp;
int i;
for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
comp = ovl_adaptor->ovl_adaptor_comp[i];
if (i < OVL_ADAPTOR_MERGE0) {
mtk_mdp_rdma_clk_disable(comp);
pm_runtime_put(comp);
} else if (i < OVL_ADAPTOR_ETHDR0) {
mtk_merge_clk_disable(comp);
} else {
mtk_ethdr_clk_disable(comp);
}
}
}
unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev)
{
return MTK_OVL_ADAPTOR_LAYER_NUM;
}
struct device *mtk_ovl_adaptor_dma_dev_get(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
return ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0];
}
void mtk_ovl_adaptor_register_vblank_cb(struct device *dev, void (*vblank_cb)(void *),
void *vblank_cb_data)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
mtk_ethdr_register_vblank_cb(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0],
vblank_cb, vblank_cb_data);
}
void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
mtk_ethdr_unregister_vblank_cb(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
}
void mtk_ovl_adaptor_enable_vblank(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
mtk_ethdr_enable_vblank(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
}
void mtk_ovl_adaptor_disable_vblank(struct device *dev)
{
struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
mtk_ethdr_disable_vblank(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
}
void mtk_ovl_adaptor_add_comp(struct device *dev, struct mtk_mutex *mutex)
{
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA0);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA1);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA2);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA3);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA4);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA5);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA6);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MDP_RDMA7);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MERGE1);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MERGE2);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MERGE3);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_MERGE4);
mtk_mutex_add_comp(mutex, DDP_COMPONENT_ETHDR_MIXER);
}
void mtk_ovl_adaptor_remove_comp(struct device *dev, struct mtk_mutex *mutex)
{
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA0);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA1);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA2);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA3);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA4);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA5);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA6);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MDP_RDMA7);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MERGE1);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MERGE2);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MERGE3);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_MERGE4);
mtk_mutex_remove_comp(mutex, DDP_COMPONENT_ETHDR_MIXER);
}
void mtk_ovl_adaptor_connect(struct device *dev, struct device *mmsys_dev, unsigned int next)
{
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA0, DDP_COMPONENT_MERGE1);
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA1, DDP_COMPONENT_MERGE1);
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA2, DDP_COMPONENT_MERGE2);
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE1, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE2, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE3, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE4, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_ETHDR_MIXER, next);
}
void mtk_ovl_adaptor_disconnect(struct device *dev, struct device *mmsys_dev, unsigned int next)
{
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA0, DDP_COMPONENT_MERGE1);
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA1, DDP_COMPONENT_MERGE1);
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA2, DDP_COMPONENT_MERGE2);
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE1, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE2, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE3, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE4, DDP_COMPONENT_ETHDR_MIXER);
mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_ETHDR_MIXER, next);
}
static int ovl_adaptor_comp_get_id(struct device *dev, struct device_node *node,
enum mtk_ovl_adaptor_comp_type type)
{
int alias_id = of_alias_get_id(node, private_comp_stem[type]);
int i;
for (i = 0; i < ARRAY_SIZE(comp_matches); i++)
if (comp_matches[i].type == type &&
comp_matches[i].alias_id == alias_id)
return i;
dev_warn(dev, "Failed to get id. type: %d, alias: %d\n", type, alias_id);
return -EINVAL;
}
static const struct of_device_id mtk_ovl_adaptor_comp_dt_ids[] = {
{
.compatible = "mediatek,mt8195-vdo1-rdma",
.data = (void *)OVL_ADAPTOR_TYPE_RDMA,
}, {
.compatible = "mediatek,mt8195-disp-merge",
.data = (void *)OVL_ADAPTOR_TYPE_MERGE,
}, {
.compatible = "mediatek,mt8195-disp-ethdr",
.data = (void *)OVL_ADAPTOR_TYPE_ETHDR,
},
{},
};
static int compare_of(struct device *dev, void *data)
{
return dev->of_node == data;
}
static int ovl_adaptor_comp_init(struct device *dev, struct component_match **match)
{
struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
struct device_node *node, *parent;
struct platform_device *comp_pdev;
parent = dev->parent->parent->of_node->parent;
for_each_child_of_node(parent, node) {
const struct of_device_id *of_id;
enum mtk_ovl_adaptor_comp_type type;
int id;
of_id = of_match_node(mtk_ovl_adaptor_comp_dt_ids, node);
if (!of_id)
continue;
if (!of_device_is_available(node)) {
dev_dbg(dev, "Skipping disabled component %pOF\n",
node);
continue;
}
type = (enum mtk_ovl_adaptor_comp_type)of_id->data;
id = ovl_adaptor_comp_get_id(dev, node, type);
if (id < 0) {
dev_warn(dev, "Skipping unknown component %pOF\n",
node);
continue;
}
comp_pdev = of_find_device_by_node(node);
if (!comp_pdev)
return -EPROBE_DEFER;
priv->ovl_adaptor_comp[id] = &comp_pdev->dev;
drm_of_component_match_add(dev, match, compare_of, node);
dev_dbg(dev, "Adding component match for %pOF\n", node);
}
if (!*match) {
dev_err(dev, "No match device for ovl_adaptor\n");
return -ENODEV;
}
return 0;
}
static int mtk_disp_ovl_adaptor_comp_bind(struct device *dev, struct device *master,
void *data)
{
struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
if (!priv->children_bound)
return -EPROBE_DEFER;
return 0;
}
static void mtk_disp_ovl_adaptor_comp_unbind(struct device *dev, struct device *master,
void *data)
{
}
static const struct component_ops mtk_disp_ovl_adaptor_comp_ops = {
.bind = mtk_disp_ovl_adaptor_comp_bind,
.unbind = mtk_disp_ovl_adaptor_comp_unbind,
};
static int mtk_disp_ovl_adaptor_master_bind(struct device *dev)
{
struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
int ret;
ret = component_bind_all(dev, priv->mmsys_dev);
if (ret)
return dev_err_probe(dev, ret, "component_bind_all failed!\n");
priv->children_bound = true;
return 0;
}
static void mtk_disp_ovl_adaptor_master_unbind(struct device *dev)
{
struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
priv->children_bound = false;
}
static const struct component_master_ops mtk_disp_ovl_adaptor_master_ops = {
.bind = mtk_disp_ovl_adaptor_master_bind,
.unbind = mtk_disp_ovl_adaptor_master_unbind,
};
static int mtk_disp_ovl_adaptor_probe(struct platform_device *pdev)
{
struct mtk_disp_ovl_adaptor *priv;
struct device *dev = &pdev->dev;
struct component_match *match = NULL;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
platform_set_drvdata(pdev, priv);
ret = ovl_adaptor_comp_init(dev, &match);
if (ret < 0)
return ret;
priv->mmsys_dev = pdev->dev.platform_data;
component_master_add_with_match(dev, &mtk_disp_ovl_adaptor_master_ops, match);
pm_runtime_enable(dev);
ret = component_add(dev, &mtk_disp_ovl_adaptor_comp_ops);
if (ret != 0) {
pm_runtime_disable(dev);
dev_err(dev, "Failed to add component: %d\n", ret);
}
return ret;
}
static int mtk_disp_ovl_adaptor_remove(struct platform_device *pdev)
{
component_master_del(&pdev->dev, &mtk_disp_ovl_adaptor_master_ops);
pm_runtime_disable(&pdev->dev);
return 0;
}
struct platform_driver mtk_disp_ovl_adaptor_driver = {
.probe = mtk_disp_ovl_adaptor_probe,
.remove = mtk_disp_ovl_adaptor_remove,
.driver = {
.name = "mediatek-disp-ovl-adaptor",
.owner = THIS_MODULE,
},
};

1
drivers/gpu/drm/mediatek/mtk_drm_drv.h
View file

@ -51,6 +51,7 @@ extern struct platform_driver mtk_disp_ccorr_driver;
extern struct platform_driver mtk_disp_color_driver; extern struct platform_driver mtk_disp_color_driver;
extern struct platform_driver mtk_disp_gamma_driver; extern struct platform_driver mtk_disp_gamma_driver;
extern struct platform_driver mtk_disp_merge_driver; extern struct platform_driver mtk_disp_merge_driver;
extern struct platform_driver mtk_disp_ovl_adaptor_driver;
extern struct platform_driver mtk_disp_ovl_driver; extern struct platform_driver mtk_disp_ovl_driver;
extern struct platform_driver mtk_disp_rdma_driver; extern struct platform_driver mtk_disp_rdma_driver;
extern struct platform_driver mtk_dpi_driver; extern struct platform_driver mtk_dpi_driver;