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drm/mediatek: Change disp/ddp term to mutex in mtk mutex driver

Browse source 
mtk mutex is used by both drm and mdp driver, so change disp/ddp term to
mutex to show that it's a common driver for drm and mdp.

Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
CK Hu 2020-07-21 11:24:36 +08:00 committed by Chun-Kuang Hu
parent 8125bfa5bc
commit 4971593f8e
5 changed files with 181 additions and 182 deletions
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30
drivers/gpu/drm/mediatek/mtk_drm_crtc.c
View file

@ -55,7 +55,7 @@ struct mtk_drm_crtc {
#endif
struct device *mmsys_dev;
struct mtk_disp_mutex *mutex;
struct mtk_mutex *mutex;
unsigned int ddp_comp_nr;
struct mtk_ddp_comp **ddp_comp;
@ -107,7 +107,7 @@ static void mtk_drm_crtc_destroy(struct drm_crtc *crtc)
{
struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
mtk_disp_mutex_put(mtk_crtc->mutex);
mtk_mutex_put(mtk_crtc->mutex);
drm_crtc_cleanup(crtc);
}
@ -265,7 +265,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
return ret;
}
ret = mtk_disp_mutex_prepare(mtk_crtc->mutex);
ret = mtk_mutex_prepare(mtk_crtc->mutex);
if (ret < 0) {
DRM_ERROR("Failed to enable mutex clock: %d\n", ret);
goto err_pm_runtime_put;
@ -281,11 +281,11 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
mtk_mmsys_ddp_connect(mtk_crtc->mmsys_dev,
mtk_crtc->ddp_comp[i]->id,
mtk_crtc->ddp_comp[i + 1]->id);
mtk_disp_mutex_add_comp(mtk_crtc->mutex,
mtk_mutex_add_comp(mtk_crtc->mutex,
mtk_crtc->ddp_comp[i]->id);
}
mtk_disp_mutex_add_comp(mtk_crtc->mutex, mtk_crtc->ddp_comp[i]->id);
mtk_disp_mutex_enable(mtk_crtc->mutex);
mtk_mutex_add_comp(mtk_crtc->mutex, mtk_crtc->ddp_comp[i]->id);
mtk_mutex_enable(mtk_crtc->mutex);
for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[i];
@ -314,7 +314,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
return 0;
err_mutex_unprepare:
mtk_disp_mutex_unprepare(mtk_crtc->mutex);
mtk_mutex_unprepare(mtk_crtc->mutex);
err_pm_runtime_put:
pm_runtime_put(crtc->dev->dev);
return ret;
@ -333,19 +333,19 @@ static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc)
}
for (i = 0; i < mtk_crtc->ddp_comp_nr; i++)
mtk_disp_mutex_remove_comp(mtk_crtc->mutex,
mtk_mutex_remove_comp(mtk_crtc->mutex,
mtk_crtc->ddp_comp[i]->id);
mtk_disp_mutex_disable(mtk_crtc->mutex);
mtk_mutex_disable(mtk_crtc->mutex);
for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) {
mtk_mmsys_ddp_disconnect(mtk_crtc->mmsys_dev,
mtk_crtc->ddp_comp[i]->id,
mtk_crtc->ddp_comp[i + 1]->id);
mtk_disp_mutex_remove_comp(mtk_crtc->mutex,
mtk_mutex_remove_comp(mtk_crtc->mutex,
mtk_crtc->ddp_comp[i]->id);
}
mtk_disp_mutex_remove_comp(mtk_crtc->mutex, mtk_crtc->ddp_comp[i]->id);
mtk_mutex_remove_comp(mtk_crtc->mutex, mtk_crtc->ddp_comp[i]->id);
mtk_crtc_ddp_clk_disable(mtk_crtc);
mtk_disp_mutex_unprepare(mtk_crtc->mutex);
mtk_mutex_unprepare(mtk_crtc->mutex);
pm_runtime_put(drm->dev);
@ -457,9 +457,9 @@ static void mtk_drm_crtc_hw_config(struct mtk_drm_crtc *mtk_crtc)
mtk_crtc->pending_async_planes = true;
if (priv->data->shadow_register) {
mtk_disp_mutex_acquire(mtk_crtc->mutex);
mtk_mutex_acquire(mtk_crtc->mutex);
mtk_crtc_ddp_config(crtc, NULL);
mtk_disp_mutex_release(mtk_crtc->mutex);
mtk_mutex_release(mtk_crtc->mutex);
}
#if IS_REACHABLE(CONFIG_MTK_CMDQ)
if (mtk_crtc->cmdq_client) {
@ -773,7 +773,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
if (!mtk_crtc->ddp_comp)
return -ENOMEM;
mtk_crtc->mutex = mtk_disp_mutex_get(priv->mutex_dev, pipe);
mtk_crtc->mutex = mtk_mutex_get(priv->mutex_dev, pipe);
if (IS_ERR(mtk_crtc->mutex)) {
ret = PTR_ERR(mtk_crtc->mutex);
dev_err(dev, "Failed to get mutex: %d\n", ret);

2
drivers/gpu/drm/mediatek/mtk_drm_drv.c
View file

@ -588,7 +588,7 @@ static struct platform_driver mtk_drm_platform_driver = {
};
static struct platform_driver * const mtk_drm_drivers[] = {
&mtk_ddp_driver,
&mtk_mutex_driver,
&mtk_disp_color_driver,
&mtk_disp_ovl_driver,
&mtk_disp_rdma_driver,

2
drivers/gpu/drm/mediatek/mtk_drm_drv.h
View file

@ -46,7 +46,7 @@ struct mtk_drm_private {
struct drm_atomic_state *suspend_state;
};
extern struct platform_driver mtk_ddp_driver;
extern struct platform_driver mtk_mutex_driver;
extern struct platform_driver mtk_disp_color_driver;
extern struct platform_driver mtk_disp_ovl_driver;
extern struct platform_driver mtk_disp_rdma_driver;

303
drivers/gpu/drm/mediatek/mtk_mutex.c
View file

@ -9,12 +9,12 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/soc/mediatek/mtk-mmsys.h>
#include "mtk_drm_ddp_comp.h"
#include "mtk_mutex.h"
#define MT2701_DISP_MUTEX0_MOD0 0x2c
#define MT2701_DISP_MUTEX0_SOF0 0x30
#define MT2701_MUTEX0_MOD0 0x2c
#define MT2701_MUTEX0_SOF0 0x30
#define DISP_REG_MUTEX_EN(n) (0x20 + 0x20 * (n))
#define DISP_REG_MUTEX(n) (0x24 + 0x20 * (n))
@ -79,33 +79,32 @@
#define MT2701_MUTEX_MOD_DISP_RDMA0 10
#define MT2701_MUTEX_MOD_DISP_RDMA1 12
#define MUTEX_SOF_SINGLE_MODE 0
#define MUTEX_SOF_DSI0 1
#define MUTEX_SOF_DSI1 2
#define MUTEX_SOF_DPI0 3
#define MUTEX_SOF_DPI1 4
#define MUTEX_SOF_DSI2 5
#define MUTEX_SOF_DSI3 6
#define MT8167_MUTEX_SOF_DPI0 2
#define MT8167_MUTEX_SOF_DPI1 3
#define MT2712_MUTEX_SOF_SINGLE_MODE 0
#define MT2712_MUTEX_SOF_DSI0 1
#define MT2712_MUTEX_SOF_DSI1 2
#define MT2712_MUTEX_SOF_DPI0 3
#define MT2712_MUTEX_SOF_DPI1 4
#define MT2712_MUTEX_SOF_DSI2 5
#define MT2712_MUTEX_SOF_DSI3 6
#define MT8167_MUTEX_SOF_DPI0 2
#define MT8167_MUTEX_SOF_DPI1 3
struct mtk_disp_mutex {
struct mtk_mutex {
int id;
bool claimed;
};
enum mtk_ddp_mutex_sof_id {
DDP_MUTEX_SOF_SINGLE_MODE,
DDP_MUTEX_SOF_DSI0,
DDP_MUTEX_SOF_DSI1,
DDP_MUTEX_SOF_DPI0,
DDP_MUTEX_SOF_DPI1,
DDP_MUTEX_SOF_DSI2,
DDP_MUTEX_SOF_DSI3,
enum mtk_mutex_sof_id {
MUTEX_SOF_SINGLE_MODE,
MUTEX_SOF_DSI0,
MUTEX_SOF_DSI1,
MUTEX_SOF_DPI0,
MUTEX_SOF_DPI1,
MUTEX_SOF_DSI2,
MUTEX_SOF_DSI3,
};
struct mtk_ddp_data {
struct mtk_mutex_data {
const unsigned int *mutex_mod;
const unsigned int *mutex_sof;
const unsigned int mutex_mod_reg;
@ -113,12 +112,12 @@ struct mtk_ddp_data {
const bool no_clk;
};
struct mtk_ddp {
struct mtk_mutex_ctx {
struct device *dev;
struct clk *clk;
void __iomem *regs;
struct mtk_disp_mutex mutex[10];
const struct mtk_ddp_data *data;
struct mtk_mutex mutex[10];
const struct mtk_mutex_data *data;
};
static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = {
@ -183,150 +182,150 @@ static const unsigned int mt8173_mutex_mod[DDP_COMPONENT_ID_MAX] = {
[DDP_COMPONENT_WDMA1] = MT8173_MUTEX_MOD_DISP_WDMA1,
};
static const unsigned int mt2712_mutex_sof[DDP_MUTEX_SOF_DSI3 + 1] = {
[DDP_MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
[DDP_MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0,
[DDP_MUTEX_SOF_DSI1] = MUTEX_SOF_DSI1,
[DDP_MUTEX_SOF_DPI0] = MUTEX_SOF_DPI0,
[DDP_MUTEX_SOF_DPI1] = MUTEX_SOF_DPI1,
[DDP_MUTEX_SOF_DSI2] = MUTEX_SOF_DSI2,
[DDP_MUTEX_SOF_DSI3] = MUTEX_SOF_DSI3,
static const unsigned int mt2712_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
[MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
[MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0,
[MUTEX_SOF_DSI1] = MUTEX_SOF_DSI1,
[MUTEX_SOF_DPI0] = MUTEX_SOF_DPI0,
[MUTEX_SOF_DPI1] = MUTEX_SOF_DPI1,
[MUTEX_SOF_DSI2] = MUTEX_SOF_DSI2,
[MUTEX_SOF_DSI3] = MUTEX_SOF_DSI3,
};
static const unsigned int mt8167_mutex_sof[DDP_MUTEX_SOF_DSI3 + 1] = {
[DDP_MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
[DDP_MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0,
[DDP_MUTEX_SOF_DPI0] = MT8167_MUTEX_SOF_DPI0,
[DDP_MUTEX_SOF_DPI1] = MT8167_MUTEX_SOF_DPI1,
static const unsigned int mt8167_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
[MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
[MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0,
[MUTEX_SOF_DPI0] = MT8167_MUTEX_SOF_DPI0,
[MUTEX_SOF_DPI1] = MT8167_MUTEX_SOF_DPI1,
};
static const struct mtk_ddp_data mt2701_ddp_driver_data = {
static const struct mtk_mutex_data mt2701_mutex_driver_data = {
.mutex_mod = mt2701_mutex_mod,
.mutex_sof = mt2712_mutex_sof,
.mutex_mod_reg = MT2701_DISP_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
.mutex_mod_reg = MT2701_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_MUTEX0_SOF0,
};
static const struct mtk_ddp_data mt2712_ddp_driver_data = {
static const struct mtk_mutex_data mt2712_mutex_driver_data = {
.mutex_mod = mt2712_mutex_mod,
.mutex_sof = mt2712_mutex_sof,
.mutex_mod_reg = MT2701_DISP_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
.mutex_mod_reg = MT2701_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_MUTEX0_SOF0,
};
static const struct mtk_ddp_data mt8167_ddp_driver_data = {
static const struct mtk_mutex_data mt8167_mutex_driver_data = {
.mutex_mod = mt8167_mutex_mod,
.mutex_sof = mt8167_mutex_sof,
.mutex_mod_reg = MT2701_DISP_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
.mutex_mod_reg = MT2701_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_MUTEX0_SOF0,
.no_clk = true,
};
static const struct mtk_ddp_data mt8173_ddp_driver_data = {
static const struct mtk_mutex_data mt8173_mutex_driver_data = {
.mutex_mod = mt8173_mutex_mod,
.mutex_sof = mt2712_mutex_sof,
.mutex_mod_reg = MT2701_DISP_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
.mutex_mod_reg = MT2701_MUTEX0_MOD0,
.mutex_sof_reg = MT2701_MUTEX0_SOF0,
};
struct mtk_disp_mutex *mtk_disp_mutex_get(struct device *dev, unsigned int id)
struct mtk_mutex *mtk_mutex_get(struct device *dev, unsigned int id)
{
struct mtk_ddp *ddp = dev_get_drvdata(dev);
struct mtk_mutex_ctx *mtx = dev_get_drvdata(dev);
if (id >= 10)
return ERR_PTR(-EINVAL);
if (ddp->mutex[id].claimed)
if (mtx->mutex[id].claimed)
return ERR_PTR(-EBUSY);
ddp->mutex[id].claimed = true;
mtx->mutex[id].claimed = true;
return &ddp->mutex[id];
return &mtx->mutex[id];
}
void mtk_disp_mutex_put(struct mtk_disp_mutex *mutex)
void mtk_mutex_put(struct mtk_mutex *mutex)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
WARN_ON(&ddp->mutex[mutex->id] != mutex);
WARN_ON(&mtx->mutex[mutex->id] != mutex);
mutex->claimed = false;
}
int mtk_disp_mutex_prepare(struct mtk_disp_mutex *mutex)
int mtk_mutex_prepare(struct mtk_mutex *mutex)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
return clk_prepare_enable(ddp->clk);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
return clk_prepare_enable(mtx->clk);
}
void mtk_disp_mutex_unprepare(struct mtk_disp_mutex *mutex)
void mtk_mutex_unprepare(struct mtk_mutex *mutex)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
clk_disable_unprepare(ddp->clk);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
clk_disable_unprepare(mtx->clk);
}
void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
enum mtk_ddp_comp_id id)
void mtk_mutex_add_comp(struct mtk_mutex *mutex,
enum mtk_ddp_comp_id id)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
unsigned int reg;
unsigned int sof_id;
unsigned int offset;
WARN_ON(&ddp->mutex[mutex->id] != mutex);
WARN_ON(&mtx->mutex[mutex->id] != mutex);
switch (id) {
case DDP_COMPONENT_DSI0:
sof_id = DDP_MUTEX_SOF_DSI0;
sof_id = MUTEX_SOF_DSI0;
break;
case DDP_COMPONENT_DSI1:
sof_id = DDP_MUTEX_SOF_DSI0;
sof_id = MUTEX_SOF_DSI0;
break;
case DDP_COMPONENT_DSI2:
sof_id = DDP_MUTEX_SOF_DSI2;
sof_id = MUTEX_SOF_DSI2;
break;
case DDP_COMPONENT_DSI3:
sof_id = DDP_MUTEX_SOF_DSI3;
sof_id = MUTEX_SOF_DSI3;
break;
case DDP_COMPONENT_DPI0:
sof_id = DDP_MUTEX_SOF_DPI0;
sof_id = MUTEX_SOF_DPI0;
break;
case DDP_COMPONENT_DPI1:
sof_id = DDP_MUTEX_SOF_DPI1;
sof_id = MUTEX_SOF_DPI1;
break;
default:
if (ddp->data->mutex_mod[id] < 32) {
offset = DISP_REG_MUTEX_MOD(ddp->data->mutex_mod_reg,
if (mtx->data->mutex_mod[id] < 32) {
offset = DISP_REG_MUTEX_MOD(mtx->data->mutex_mod_reg,
mutex->id);
reg = readl_relaxed(ddp->regs + offset);
reg |= 1 << ddp->data->mutex_mod[id];
writel_relaxed(reg, ddp->regs + offset);
reg = readl_relaxed(mtx->regs + offset);
reg |= 1 << mtx->data->mutex_mod[id];
writel_relaxed(reg, mtx->regs + offset);
} else {
offset = DISP_REG_MUTEX_MOD2(mutex->id);
reg = readl_relaxed(ddp->regs + offset);
reg |= 1 << (ddp->data->mutex_mod[id] - 32);
writel_relaxed(reg, ddp->regs + offset);
reg = readl_relaxed(mtx->regs + offset);
reg |= 1 << (mtx->data->mutex_mod[id] - 32);
writel_relaxed(reg, mtx->regs + offset);
}
return;
}
writel_relaxed(ddp->data->mutex_sof[sof_id],
ddp->regs +
DISP_REG_MUTEX_SOF(ddp->data->mutex_sof_reg, mutex->id));
writel_relaxed(mtx->data->mutex_sof[sof_id],
mtx->regs +
DISP_REG_MUTEX_SOF(mtx->data->mutex_sof_reg, mutex->id));
}
void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
enum mtk_ddp_comp_id id)
void mtk_mutex_remove_comp(struct mtk_mutex *mutex,
enum mtk_ddp_comp_id id)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
unsigned int reg;
unsigned int offset;
WARN_ON(&ddp->mutex[mutex->id] != mutex);
WARN_ON(&mtx->mutex[mutex->id] != mutex);
switch (id) {
case DDP_COMPONENT_DSI0:
@ -336,129 +335,129 @@ void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
case DDP_COMPONENT_DPI0:
case DDP_COMPONENT_DPI1:
writel_relaxed(MUTEX_SOF_SINGLE_MODE,
ddp->regs +
DISP_REG_MUTEX_SOF(ddp->data->mutex_sof_reg,
mtx->regs +
DISP_REG_MUTEX_SOF(mtx->data->mutex_sof_reg,
mutex->id));
break;
default:
if (ddp->data->mutex_mod[id] < 32) {
offset = DISP_REG_MUTEX_MOD(ddp->data->mutex_mod_reg,
if (mtx->data->mutex_mod[id] < 32) {
offset = DISP_REG_MUTEX_MOD(mtx->data->mutex_mod_reg,
mutex->id);
reg = readl_relaxed(ddp->regs + offset);
reg &= ~(1 << ddp->data->mutex_mod[id]);
writel_relaxed(reg, ddp->regs + offset);
reg = readl_relaxed(mtx->regs + offset);
reg &= ~(1 << mtx->data->mutex_mod[id]);
writel_relaxed(reg, mtx->regs + offset);
} else {
offset = DISP_REG_MUTEX_MOD2(mutex->id);
reg = readl_relaxed(ddp->regs + offset);
reg &= ~(1 << (ddp->data->mutex_mod[id] - 32));
writel_relaxed(reg, ddp->regs + offset);
reg = readl_relaxed(mtx->regs + offset);
reg &= ~(1 << (mtx->data->mutex_mod[id] - 32));
writel_relaxed(reg, mtx->regs + offset);
}
break;
}
}
void mtk_disp_mutex_enable(struct mtk_disp_mutex *mutex)
void mtk_mutex_enable(struct mtk_mutex *mutex)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
WARN_ON(&ddp->mutex[mutex->id] != mutex);
WARN_ON(&mtx->mutex[mutex->id] != mutex);
writel(1, ddp->regs + DISP_REG_MUTEX_EN(mutex->id));
writel(1, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));
}
void mtk_disp_mutex_disable(struct mtk_disp_mutex *mutex)
void mtk_mutex_disable(struct mtk_mutex *mutex)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
WARN_ON(&ddp->mutex[mutex->id] != mutex);
WARN_ON(&mtx->mutex[mutex->id] != mutex);
writel(0, ddp->regs + DISP_REG_MUTEX_EN(mutex->id));
writel(0, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));
}
void mtk_disp_mutex_acquire(struct mtk_disp_mutex *mutex)
void mtk_mutex_acquire(struct mtk_mutex *mutex)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
u32 tmp;
writel(1, ddp->regs + DISP_REG_MUTEX_EN(mutex->id));
writel(1, ddp->regs + DISP_REG_MUTEX(mutex->id));
if (readl_poll_timeout_atomic(ddp->regs + DISP_REG_MUTEX(mutex->id),
writel(1, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));
writel(1, mtx->regs + DISP_REG_MUTEX(mutex->id));
if (readl_poll_timeout_atomic(mtx->regs + DISP_REG_MUTEX(mutex->id),
tmp, tmp & INT_MUTEX, 1, 10000))
pr_err("could not acquire mutex %d\n", mutex->id);
}
void mtk_disp_mutex_release(struct mtk_disp_mutex *mutex)
void mtk_mutex_release(struct mtk_mutex *mutex)
{
struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
mutex[mutex->id]);
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
mutex[mutex->id]);
writel(0, ddp->regs + DISP_REG_MUTEX(mutex->id));
writel(0, mtx->regs + DISP_REG_MUTEX(mutex->id));
}
static int mtk_ddp_probe(struct platform_device *pdev)
static int mtk_mutex_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct mtk_ddp *ddp;
struct mtk_mutex_ctx *mtx;
struct resource *regs;
int i;
ddp = devm_kzalloc(dev, sizeof(*ddp), GFP_KERNEL);
if (!ddp)
mtx = devm_kzalloc(dev, sizeof(*mtx), GFP_KERNEL);
if (!mtx)
return -ENOMEM;
for (i = 0; i < 10; i++)
ddp->mutex[i].id = i;
mtx->mutex[i].id = i;
ddp->data = of_device_get_match_data(dev);
mtx->data = of_device_get_match_data(dev);
if (!ddp->data->no_clk) {
ddp->clk = devm_clk_get(dev, NULL);
if (IS_ERR(ddp->clk)) {
if (PTR_ERR(ddp->clk) != -EPROBE_DEFER)
if (!mtx->data->no_clk) {
mtx->clk = devm_clk_get(dev, NULL);
if (IS_ERR(mtx->clk)) {
if (PTR_ERR(mtx->clk) != -EPROBE_DEFER)
dev_err(dev, "Failed to get clock\n");
return PTR_ERR(ddp->clk);
return PTR_ERR(mtx->clk);
}
}
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ddp->regs = devm_ioremap_resource(dev, regs);
if (IS_ERR(ddp->regs)) {
mtx->regs = devm_ioremap_resource(dev, regs);
if (IS_ERR(mtx->regs)) {
dev_err(dev, "Failed to map mutex registers\n");
return PTR_ERR(ddp->regs);
return PTR_ERR(mtx->regs);
}
platform_set_drvdata(pdev, ddp);
platform_set_drvdata(pdev, mtx);
return 0;
}
static int mtk_ddp_remove(struct platform_device *pdev)
static int mtk_mutex_remove(struct platform_device *pdev)
{
return 0;
}
static const struct of_device_id ddp_driver_dt_match[] = {
static const struct of_device_id mutex_driver_dt_match[] = {
{ .compatible = "mediatek,mt2701-disp-mutex",
.data = &mt2701_ddp_driver_data},
.data = &mt2701_mutex_driver_data},
{ .compatible = "mediatek,mt2712-disp-mutex",
.data = &mt2712_ddp_driver_data},
.data = &mt2712_mutex_driver_data},
{ .compatible = "mediatek,mt8167-disp-mutex",
.data = &mt8167_ddp_driver_data},
.data = &mt8167_mutex_driver_data},
{ .compatible = "mediatek,mt8173-disp-mutex",
.data = &mt8173_ddp_driver_data},
.data = &mt8173_mutex_driver_data},
{},
};
MODULE_DEVICE_TABLE(of, ddp_driver_dt_match);
MODULE_DEVICE_TABLE(of, mutex_driver_dt_match);
struct platform_driver mtk_ddp_driver = {
.probe = mtk_ddp_probe,
.remove = mtk_ddp_remove,
struct platform_driver mtk_mutex_driver = {
.probe = mtk_mutex_probe,
.remove = mtk_mutex_remove,
.driver = {
.name = "mediatek-ddp",
.name = "mediatek-mutex",
.owner = THIS_MODULE,
.of_match_table = ddp_driver_dt_match,
.of_match_table = mutex_driver_dt_match,
},
};

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

@ -8,19 +8,19 @@
struct regmap;
struct device;
struct mtk_disp_mutex;
struct mtk_mutex;
struct mtk_disp_mutex *mtk_disp_mutex_get(struct device *dev, unsigned int id);
int mtk_disp_mutex_prepare(struct mtk_disp_mutex *mutex);
void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
enum mtk_ddp_comp_id id);
void mtk_disp_mutex_enable(struct mtk_disp_mutex *mutex);
void mtk_disp_mutex_disable(struct mtk_disp_mutex *mutex);
void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
enum mtk_ddp_comp_id id);
void mtk_disp_mutex_unprepare(struct mtk_disp_mutex *mutex);
void mtk_disp_mutex_put(struct mtk_disp_mutex *mutex);
void mtk_disp_mutex_acquire(struct mtk_disp_mutex *mutex);
void mtk_disp_mutex_release(struct mtk_disp_mutex *mutex);
struct mtk_mutex *mtk_mutex_get(struct device *dev, unsigned int id);
int mtk_mutex_prepare(struct mtk_mutex *mutex);
void mtk_mutex_add_comp(struct mtk_mutex *mutex,
enum mtk_ddp_comp_id id);
void mtk_mutex_enable(struct mtk_mutex *mutex);
void mtk_mutex_disable(struct mtk_mutex *mutex);
void mtk_mutex_remove_comp(struct mtk_mutex *mutex,
enum mtk_ddp_comp_id id);
void mtk_mutex_unprepare(struct mtk_mutex *mutex);
void mtk_mutex_put(struct mtk_mutex *mutex);
void mtk_mutex_acquire(struct mtk_mutex *mutex);
void mtk_mutex_release(struct mtk_mutex *mutex);
#endif /* MTK_MUTEX_H */