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path: root/drivers/gpu/drm/exynos/exynos_mixer.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_mixer.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_mixer.c107
1 files changed, 77 insertions, 30 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 4c5aed7e54c8..e8b4ec84b312 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -76,7 +76,7 @@ struct mixer_resources {
struct clk *vp;
struct clk *sclk_mixer;
struct clk *sclk_hdmi;
- struct clk *sclk_dac;
+ struct clk *mout_mixer;
};
enum mixer_version_id {
@@ -93,6 +93,7 @@ struct mixer_context {
bool interlace;
bool powered;
bool vp_enabled;
+ bool has_sclk;
u32 int_en;
struct mutex mixer_mutex;
@@ -106,6 +107,7 @@ struct mixer_context {
struct mixer_drv_data {
enum mixer_version_id version;
bool is_vp_enabled;
+ bool has_sclk;
};
static const u8 filter_y_horiz_tap8[] = {
@@ -363,6 +365,11 @@ static void mixer_cfg_layer(struct mixer_context *ctx, int win, bool enable)
vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON);
mixer_reg_writemask(res, MXR_CFG, val,
MXR_CFG_VP_ENABLE);
+
+ /* control blending of graphic layer 0 */
+ mixer_reg_writemask(res, MXR_GRAPHIC_CFG(0), val,
+ MXR_GRP_CFG_BLEND_PRE_MUL |
+ MXR_GRP_CFG_PIXEL_BLEND_EN);
}
break;
}
@@ -377,6 +384,20 @@ static void mixer_run(struct mixer_context *ctx)
mixer_regs_dump(ctx);
}
+static void mixer_stop(struct mixer_context *ctx)
+{
+ struct mixer_resources *res = &ctx->mixer_res;
+ int timeout = 20;
+
+ mixer_reg_writemask(res, MXR_STATUS, 0, MXR_STATUS_REG_RUN);
+
+ while (!(mixer_reg_read(res, MXR_STATUS) & MXR_STATUS_REG_IDLE) &&
+ --timeout)
+ usleep_range(10000, 12000);
+
+ mixer_regs_dump(ctx);
+}
+
static void vp_video_buffer(struct mixer_context *ctx, int win)
{
struct mixer_resources *res = &ctx->mixer_res;
@@ -497,13 +518,8 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
static void mixer_layer_update(struct mixer_context *ctx)
{
struct mixer_resources *res = &ctx->mixer_res;
- u32 val;
-
- val = mixer_reg_read(res, MXR_CFG);
- /* allow one update per vsync only */
- if (!(val & MXR_CFG_LAYER_UPDATE_COUNT_MASK))
- mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE);
+ mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE);
}
static void mixer_graph_buffer(struct mixer_context *ctx, int win)
@@ -800,19 +816,23 @@ static int vp_resources_init(struct mixer_context *mixer_ctx)
dev_err(dev, "failed to get clock 'vp'\n");
return -ENODEV;
}
- mixer_res->sclk_mixer = devm_clk_get(dev, "sclk_mixer");
- if (IS_ERR(mixer_res->sclk_mixer)) {
- dev_err(dev, "failed to get clock 'sclk_mixer'\n");
- return -ENODEV;
- }
- mixer_res->sclk_dac = devm_clk_get(dev, "sclk_dac");
- if (IS_ERR(mixer_res->sclk_dac)) {
- dev_err(dev, "failed to get clock 'sclk_dac'\n");
- return -ENODEV;
- }
- if (mixer_res->sclk_hdmi)
- clk_set_parent(mixer_res->sclk_mixer, mixer_res->sclk_hdmi);
+ if (mixer_ctx->has_sclk) {
+ mixer_res->sclk_mixer = devm_clk_get(dev, "sclk_mixer");
+ if (IS_ERR(mixer_res->sclk_mixer)) {
+ dev_err(dev, "failed to get clock 'sclk_mixer'\n");
+ return -ENODEV;
+ }
+ mixer_res->mout_mixer = devm_clk_get(dev, "mout_mixer");
+ if (IS_ERR(mixer_res->mout_mixer)) {
+ dev_err(dev, "failed to get clock 'mout_mixer'\n");
+ return -ENODEV;
+ }
+
+ if (mixer_res->sclk_hdmi && mixer_res->mout_mixer)
+ clk_set_parent(mixer_res->mout_mixer,
+ mixer_res->sclk_hdmi);
+ }
res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_MEM, 1);
if (res == NULL) {
@@ -1010,6 +1030,8 @@ static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr)
}
mutex_unlock(&mixer_ctx->mixer_mutex);
+ drm_vblank_get(mgr->crtc->dev, mixer_ctx->pipe);
+
atomic_set(&mixer_ctx->wait_vsync_event, 1);
/*
@@ -1020,6 +1042,8 @@ static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr)
!atomic_read(&mixer_ctx->wait_vsync_event),
HZ/20))
DRM_DEBUG_KMS("vblank wait timed out.\n");
+
+ drm_vblank_put(mgr->crtc->dev, mixer_ctx->pipe);
}
static void mixer_window_suspend(struct exynos_drm_manager *mgr)
@@ -1061,7 +1085,7 @@ static void mixer_poweron(struct exynos_drm_manager *mgr)
mutex_unlock(&ctx->mixer_mutex);
return;
}
- ctx->powered = true;
+
mutex_unlock(&ctx->mixer_mutex);
pm_runtime_get_sync(ctx->dev);
@@ -1069,9 +1093,16 @@ static void mixer_poweron(struct exynos_drm_manager *mgr)
clk_prepare_enable(res->mixer);
if (ctx->vp_enabled) {
clk_prepare_enable(res->vp);
- clk_prepare_enable(res->sclk_mixer);
+ if (ctx->has_sclk)
+ clk_prepare_enable(res->sclk_mixer);
}
+ mutex_lock(&ctx->mixer_mutex);
+ ctx->powered = true;
+ mutex_unlock(&ctx->mixer_mutex);
+
+ mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_SOFT_RESET);
+
mixer_reg_write(res, MXR_INT_EN, ctx->int_en);
mixer_win_reset(ctx);
@@ -1084,27 +1115,29 @@ static void mixer_poweroff(struct exynos_drm_manager *mgr)
struct mixer_resources *res = &ctx->mixer_res;
mutex_lock(&ctx->mixer_mutex);
- if (!ctx->powered)
- goto out;
+ if (!ctx->powered) {
+ mutex_unlock(&ctx->mixer_mutex);
+ return;
+ }
mutex_unlock(&ctx->mixer_mutex);
+ mixer_stop(ctx);
mixer_window_suspend(mgr);
ctx->int_en = mixer_reg_read(res, MXR_INT_EN);
+ mutex_lock(&ctx->mixer_mutex);
+ ctx->powered = false;
+ mutex_unlock(&ctx->mixer_mutex);
+
clk_disable_unprepare(res->mixer);
if (ctx->vp_enabled) {
clk_disable_unprepare(res->vp);
- clk_disable_unprepare(res->sclk_mixer);
+ if (ctx->has_sclk)
+ clk_disable_unprepare(res->sclk_mixer);
}
pm_runtime_put_sync(ctx->dev);
-
- mutex_lock(&ctx->mixer_mutex);
- ctx->powered = false;
-
-out:
- mutex_unlock(&ctx->mixer_mutex);
}
static void mixer_dpms(struct exynos_drm_manager *mgr, int mode)
@@ -1169,9 +1202,15 @@ static struct mixer_drv_data exynos5250_mxr_drv_data = {
.is_vp_enabled = 0,
};
+static struct mixer_drv_data exynos4212_mxr_drv_data = {
+ .version = MXR_VER_0_0_0_16,
+ .is_vp_enabled = 1,
+};
+
static struct mixer_drv_data exynos4210_mxr_drv_data = {
.version = MXR_VER_0_0_0_16,
.is_vp_enabled = 1,
+ .has_sclk = 1,
};
static struct platform_device_id mixer_driver_types[] = {
@@ -1188,6 +1227,12 @@ static struct platform_device_id mixer_driver_types[] = {
static struct of_device_id mixer_match_types[] = {
{
+ .compatible = "samsung,exynos4210-mixer",
+ .data = &exynos4210_mxr_drv_data,
+ }, {
+ .compatible = "samsung,exynos4212-mixer",
+ .data = &exynos4212_mxr_drv_data,
+ }, {
.compatible = "samsung,exynos5-mixer",
.data = &exynos5250_mxr_drv_data,
}, {
@@ -1200,6 +1245,7 @@ static struct of_device_id mixer_match_types[] = {
/* end node */
}
};
+MODULE_DEVICE_TABLE(of, mixer_match_types);
static int mixer_bind(struct device *dev, struct device *manager, void *data)
{
@@ -1231,6 +1277,7 @@ static int mixer_bind(struct device *dev, struct device *manager, void *data)
ctx->pdev = pdev;
ctx->dev = dev;
ctx->vp_enabled = drv->is_vp_enabled;
+ ctx->has_sclk = drv->has_sclk;
ctx->mxr_ver = drv->version;
init_waitqueue_head(&ctx->wait_vsync_queue);
atomic_set(&ctx->wait_vsync_event, 0);
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