This patch adds support for disabling the video processor code based
on the platform type. This is done based on a field in the mixer driver
data which changes with the platform variant.
Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_mixer.c | 151 +++++++++++++++++++++------------
1 files changed, 98 insertions(+), 53 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 30233a3..ff2a45d 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -84,6 +84,7 @@ struct mixer_context {
int pipe;
bool interlace;
bool powered;
+ bool vp_enabled;
u32 int_en;
struct mutex mixer_mutex;
@@ -94,6 +95,7 @@ struct mixer_context {
struct mixer_drv_data {
enum mixer_version_id version;
+ bool is_vp_enabled;
};
static const u8 filter_y_horiz_tap8[] = {
@@ -262,7 +264,8 @@ static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable)
mixer_reg_writemask(res, MXR_STATUS, enable ?
MXR_STATUS_SYNC_ENABLE : 0, MXR_STATUS_SYNC_ENABLE);
- vp_reg_write(res, VP_SHADOW_UPDATE, enable ?
+ if (ctx->vp_enabled)
+ vp_reg_write(res, VP_SHADOW_UPDATE, enable ?
VP_SHADOW_UPDATE_ENABLE : 0);
}
@@ -344,8 +347,11 @@ static void mixer_cfg_layer(struct mixer_context *ctx, int win, bool enable)
mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP1_ENABLE);
break;
case 2:
- vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON);
- mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_VP_ENABLE);
+ if (ctx->vp_enabled) {
+ vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON);
+ mixer_reg_writemask(res, MXR_CFG, val,
+ MXR_CFG_VP_ENABLE);
+ }
break;
}
}
@@ -603,7 +609,8 @@ static void mixer_win_reset(struct mixer_context *ctx)
*/
val = MXR_LAYER_CFG_GRP1_VAL(3);
val |= MXR_LAYER_CFG_GRP0_VAL(2);
- val |= MXR_LAYER_CFG_VP_VAL(1);
+ if (ctx->vp_enabled)
+ val |= MXR_LAYER_CFG_VP_VAL(1);
mixer_reg_write(res, MXR_LAYER_CFG, val);
/* setting background color */
@@ -626,14 +633,17 @@ static void mixer_win_reset(struct mixer_context *ctx)
val = MXR_GRP_CFG_ALPHA_VAL(0);
mixer_reg_write(res, MXR_VIDEO_CFG, val);
- /* configuration of Video Processor Registers */
- vp_win_reset(ctx);
- vp_default_filter(res);
+ if (ctx->vp_enabled) {
+ /* configuration of Video Processor Registers */
+ vp_win_reset(ctx);
+ vp_default_filter(res);
+ }
/* disable all layers */
mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE);
mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE);
- mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE);
+ if (ctx->vp_enabled)
+ mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE);
mixer_vsync_set_update(ctx, true);
spin_unlock_irqrestore(&res->reg_slock, flags);
@@ -656,8 +666,10 @@ static void mixer_poweron(struct mixer_context *ctx)
pm_runtime_get_sync(ctx->dev);
clk_enable(res->mixer);
- clk_enable(res->vp);
- clk_enable(res->sclk_mixer);
+ if (ctx->vp_enabled) {
+ clk_enable(res->vp);
+ clk_enable(res->sclk_mixer);
+ }
mixer_reg_write(res, MXR_INT_EN, ctx->int_en);
mixer_win_reset(ctx);
@@ -677,8 +689,10 @@ static void mixer_poweroff(struct mixer_context *ctx)
ctx->int_en = mixer_reg_read(res, MXR_INT_EN);
clk_disable(res->mixer);
- clk_disable(res->vp);
- clk_disable(res->sclk_mixer);
+ if (ctx->vp_enabled) {
+ clk_disable(res->vp);
+ clk_disable(res->sclk_mixer);
+ }
pm_runtime_put_sync(ctx->dev);
@@ -811,7 +825,7 @@ static void mixer_win_commit(void *ctx, int win)
DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win);
- if (win > 1)
+ if (win > 1 && mixer_ctx->vp_enabled)
vp_video_buffer(mixer_ctx, win);
else
mixer_graph_buffer(mixer_ctx, win);
@@ -947,39 +961,20 @@ static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx,
ret = -ENODEV;
goto fail;
}
- mixer_res->vp = clk_get(dev, "vp");
- if (IS_ERR_OR_NULL(mixer_res->vp)) {
- dev_err(dev, "failed to get clock 'vp'\n");
- ret = -ENODEV;
- goto fail;
- }
- mixer_res->sclk_mixer = clk_get(dev, "sclk_mixer");
- if (IS_ERR_OR_NULL(mixer_res->sclk_mixer)) {
- dev_err(dev, "failed to get clock 'sclk_mixer'\n");
- ret = -ENODEV;
- goto fail;
- }
+
mixer_res->sclk_hdmi = clk_get(dev, "sclk_hdmi");
if (IS_ERR_OR_NULL(mixer_res->sclk_hdmi)) {
dev_err(dev, "failed to get clock 'sclk_hdmi'\n");
ret = -ENODEV;
goto fail;
}
- mixer_res->sclk_dac = clk_get(dev, "sclk_dac");
- if (IS_ERR_OR_NULL(mixer_res->sclk_dac)) {
- dev_err(dev, "failed to get clock 'sclk_dac'\n");
- ret = -ENODEV;
- goto fail;
- }
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mxr");
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(dev, "get memory resource failed.\n");
ret = -ENXIO;
goto fail;
}
- clk_set_parent(mixer_res->sclk_mixer, mixer_res->sclk_hdmi);
-
mixer_res->mixer_regs = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (mixer_res->mixer_regs == NULL) {
@@ -988,54 +983,92 @@ static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx,
goto fail;
}
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vp");
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {
- dev_err(dev, "get memory resource failed.\n");
+ dev_err(dev, "get interrupt resource failed.\n");
ret = -ENXIO;
goto fail;
}
- mixer_res->vp_regs = devm_ioremap(&pdev->dev, res->start,
- resource_size(res));
- if (mixer_res->vp_regs == NULL) {
- dev_err(dev, "register mapping failed.\n");
- ret = -ENXIO;
+ ret = devm_request_irq(&pdev->dev, res->start, mixer_irq_handler,
+ 0, "drm_mixer", ctx);
+ if (ret) {
+ dev_err(dev, "request interrupt failed.\n");
goto fail;
}
+ mixer_res->irq = res->start;
- res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "irq");
+ return 0;
+
+fail:
+ if (!IS_ERR_OR_NULL(mixer_res->sclk_hdmi))
+ clk_put(mixer_res->sclk_hdmi);
+ if (!IS_ERR_OR_NULL(mixer_res->mixer))
+ clk_put(mixer_res->mixer);
+ return ret;
+}
+
+static int __devinit vp_resources_init(struct exynos_drm_hdmi_context *ctx,
+ struct platform_device *pdev)
+{
+ struct mixer_context *mixer_ctx = ctx->ctx;
+ struct device *dev = &pdev->dev;
+ struct mixer_resources *mixer_res = &mixer_ctx->mixer_res;
+ struct resource *res;
+ int ret;
+
+ mixer_res->vp = clk_get(dev, "vp");
+ if (IS_ERR_OR_NULL(mixer_res->vp)) {
+ dev_err(dev, "failed to get clock 'vp'\n");
+ ret = -ENODEV;
+ goto fail;
+ }
+ mixer_res->sclk_mixer = clk_get(dev, "sclk_mixer");
+ if (IS_ERR_OR_NULL(mixer_res->sclk_mixer)) {
+ dev_err(dev, "failed to get clock 'sclk_mixer'\n");
+ ret = -ENODEV;
+ goto fail;
+ }
+ mixer_res->sclk_dac = clk_get(dev, "sclk_dac");
+ if (IS_ERR_OR_NULL(mixer_res->sclk_dac)) {
+ dev_err(dev, "failed to get clock 'sclk_dac'\n");
+ ret = -ENODEV;
+ goto fail;
+ }
+
+ if (mixer_res->sclk_hdmi)
+ clk_set_parent(mixer_res->sclk_mixer, mixer_res->sclk_hdmi);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (res == NULL) {
- dev_err(dev, "get interrupt resource failed.\n");
+ dev_err(dev, "get memory resource failed.\n");
ret = -ENXIO;
goto fail;
}
- ret = devm_request_irq(&pdev->dev, res->start, mixer_irq_handler,
- 0, "drm_mixer", ctx);
- if (ret) {
- dev_err(dev, "request interrupt failed.\n");
+ mixer_res->vp_regs = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+ if (mixer_res->vp_regs == NULL) {
+ dev_err(dev, "register mapping failed.\n");
+ ret = -ENXIO;
goto fail;
}
- mixer_res->irq = res->start;
return 0;
fail:
if (!IS_ERR_OR_NULL(mixer_res->sclk_dac))
clk_put(mixer_res->sclk_dac);
- if (!IS_ERR_OR_NULL(mixer_res->sclk_hdmi))
- clk_put(mixer_res->sclk_hdmi);
if (!IS_ERR_OR_NULL(mixer_res->sclk_mixer))
clk_put(mixer_res->sclk_mixer);
if (!IS_ERR_OR_NULL(mixer_res->vp))
clk_put(mixer_res->vp);
- if (!IS_ERR_OR_NULL(mixer_res->mixer))
- clk_put(mixer_res->mixer);
return ret;
}
static struct mixer_drv_data exynos4_mxr_drv_data = {
.version = MXR_VER_0_0_0_16,
+ .is_vp_enabled = 1,
};
static struct platform_device_id mixer_driver_types[] = {
{
@@ -1075,14 +1108,26 @@ static int __devinit mixer_probe(struct platform_device *pdev)
pdev)->driver_data;
ctx->dev = &pdev->dev;
drm_hdmi_ctx->ctx = (void *)ctx;
+ ctx->vp_enabled = drv->is_vp_enabled;
ctx->mxr_ver = drv->version;
platform_set_drvdata(pdev, drm_hdmi_ctx);
/* acquire resources: regs, irqs, clocks */
ret = mixer_resources_init(drm_hdmi_ctx, pdev);
- if (ret)
+ if (ret) {
+ DRM_ERROR("mixer_resources_init failed\n");
goto fail;
+ }
+
+ if (ctx->vp_enabled) {
+ /* acquire vp resources: regs, irqs, clocks */
+ ret = vp_resources_init(drm_hdmi_ctx, pdev);
+ if (ret) {
+ DRM_ERROR("vp_resources_init failed\n");
+ goto fail;
+ }
+ }
/* register specific callback point to common hdmi. */
exynos_mixer_ops_register(&mixer_ops);
--
1.7.0.4
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