[PATCH 2/3] media: mtk-jpegdec: use component framework to manage jpg DEC HW
kyrie.wu
kyrie.wu at mediatek.com
Wed Jun 23 00:13:02 PDT 2021
Mtk jpeg decoder has several hardware, one HW may register a device
node; use component framework to manage jpg decoder HW device node,
in this case, one device node could represent all jpg HW.
Signed-off-by: kyrie.wu <kyrie.wu at mediatek.com>
---
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 329 ++++++++++++++--------
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h | 32 +++
drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c | 213 +++++++++++++-
3 files changed, 462 insertions(+), 112 deletions(-)
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index b8d1303..faa01b5 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -1218,6 +1218,9 @@ static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
struct mtk_jpegenc_pm *pm;
struct mtk_jpegenc_clk *jpegclk;
struct mtk_jpegenc_clk_info *clk_info;
+ struct mtk_jpegdec_pm *dec_pm;
+ struct mtk_jpegdec_clk *dec_jpegclk;
+ struct mtk_jpegdec_clk_info *dec_clk_info;
int ret, i;
if (jpeg->variant->is_encoder) {
@@ -1240,14 +1243,27 @@ static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
}
return;
}
- ret = mtk_smi_larb_get(jpeg->larb);
- if (ret)
- dev_err(jpeg->dev, "mtk_smi_larb_get larbvdec fail %d\n", ret);
- ret = clk_bulk_prepare_enable(jpeg->variant->num_clks,
- jpeg->variant->clks);
- if (ret)
- dev_err(jpeg->dev, "Failed to open jpeg clk: %d\n", ret);
+ for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++) {
+ comp_dev = jpeg->hw_dev[i];
+ if (!comp_dev) {
+ pr_err("Failed to get hw dev\n");
+ return;
+ }
+
+ dec_pm = &comp_dev->dec_pm;
+ dec_jpegclk = &dec_pm->dec_clk;
+ dec_clk_info = dec_jpegclk->clk_info;
+
+ ret = clk_prepare_enable(dec_clk_info->jpegdec_clk);
+ if (ret) {
+ pr_err("jpegdec clk_prepare_enable %d %s fail\n",
+ i, dec_jpegclk->clk_info->clk_name);
+ return;
+ }
+ }
+
+ return;
}
static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
@@ -1255,6 +1271,8 @@ static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
struct mtk_jpeg_dev *comp_dev;
struct mtk_jpegenc_pm *pm;
struct mtk_jpegenc_clk *jpegclk;
+ struct mtk_jpegdec_pm *dec_pm;
+ struct mtk_jpegdec_clk *dec_jpegclk;
int i;
if (jpeg->variant->is_encoder) {
@@ -1271,56 +1289,20 @@ static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
}
return;
}
- clk_bulk_disable_unprepare(jpeg->variant->num_clks,
- jpeg->variant->clks);
- mtk_smi_larb_put(jpeg->larb);
-}
-
-static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
-{
- struct mtk_jpeg_dev *jpeg = priv;
- struct mtk_jpeg_ctx *ctx;
- struct vb2_v4l2_buffer *src_buf, *dst_buf;
- struct mtk_jpeg_src_buf *jpeg_src_buf;
- enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
- u32 dec_irq_ret;
- u32 dec_ret;
- int i;
-
- cancel_delayed_work(&jpeg->job_timeout_work);
-
- dec_ret = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
- dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret);
- ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
- if (!ctx) {
- v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n");
- return IRQ_HANDLED;
- }
-
- src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
- dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
- jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
- if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
- mtk_jpeg_dec_reset(jpeg->reg_base);
+ for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++) {
+ comp_dev = jpeg->hw_dev[i];
+ if (!comp_dev) {
+ pr_err("Failed to get hw dev\n");
+ return;
+ }
- if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
- dev_err(jpeg->dev, "decode failed\n");
- goto dec_end;
+ dec_pm = &comp_dev->dec_pm;
+ dec_jpegclk = &dec_pm->dec_clk;
+ clk_disable_unprepare(dec_jpegclk->clk_info->jpegdec_clk);
}
- for (i = 0; i < dst_buf->vb2_buf.num_planes; i++)
- vb2_set_plane_payload(&dst_buf->vb2_buf, i,
- jpeg_src_buf->dec_param.comp_size[i]);
-
- buf_state = VB2_BUF_STATE_DONE;
-
-dec_end:
- v4l2_m2m_buf_done(src_buf, buf_state);
- v4l2_m2m_buf_done(dst_buf, buf_state);
- v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
- pm_runtime_put(ctx->jpeg->dev);
- return IRQ_HANDLED;
+ return;
}
static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx)
@@ -1569,6 +1551,60 @@ irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
return IRQ_HANDLED;
}
+irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
+{
+ struct mtk_jpeg_dev *jpeg = priv;
+ struct mtk_jpeg_ctx *ctx;
+ struct mtk_jpeg_dev *master_jpeg;
+ struct vb2_v4l2_buffer *src_buf, *dst_buf;
+ struct mtk_jpeg_src_buf *jpeg_src_buf;
+ u32 dec_irq_ret;
+ u32 dec_ret;
+ u32 comp_size;
+ int i;
+ enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+
+ cancel_delayed_work(&jpeg->job_timeout_work);
+
+ src_buf = jpeg->hw_param.src_buffer;
+ dst_buf = jpeg->hw_param.dst_buffer;
+ ctx = jpeg->hw_param.curr_ctx;
+ master_jpeg = ctx->jpeg;
+ jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
+ dec_ret = mtk_jpeg_dec_get_int_status(jpeg->reg_base[0]);
+ dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret);
+ if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
+ mtk_jpeg_dec_reset(jpeg->reg_base[0]);
+
+ if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
+ pr_err("%s : %d, jpeg decode failed\n", __func__, __LINE__);
+ goto irq_end;
+ }
+
+ for (i = 0; i < dst_buf->vb2_buf.num_planes; i++) {
+ comp_size = jpeg_src_buf->dec_param.comp_size[i];
+ vb2_set_plane_payload(&dst_buf->vb2_buf, i, comp_size);
+ }
+
+ buf_state = VB2_BUF_STATE_DONE;
+
+irq_end:
+ v4l2_m2m_buf_done(src_buf, buf_state);
+ mtk_jpeg_put_buf(jpeg);
+ pm_runtime_put(jpeg->dec_pm.dev);
+ clk_disable_unprepare(jpeg->dec_pm.dec_clk.clk_info->jpegdec_clk);
+ if (ctx->fh.m2m_ctx &&
+ (!list_empty(&ctx->fh.m2m_ctx->out_q_ctx.rdy_queue) ||
+ !list_empty(&ctx->fh.m2m_ctx->cap_q_ctx.rdy_queue))) {
+ queue_work(master_jpeg->workqueue, &ctx->jpeg_work);
+ }
+
+ jpeg->hw_state = MTK_JPEG_HW_IDLE;
+ wake_up(&master_jpeg->hw_wq);
+ atomic_inc(&jpeg->hw_rdy);
+ return IRQ_HANDLED;
+}
+
void mtk_jpegenc_timeout_work(struct work_struct *work)
{
struct mtk_jpeg_dev *jpeg = container_of(work, struct mtk_jpeg_dev,
@@ -1606,24 +1642,36 @@ void mtk_jpegenc_timeout_work(struct work_struct *work)
mtk_jpeg_put_buf(jpeg);
}
-static void mtk_jpeg_job_timeout_work(struct work_struct *work)
+void mtk_jpegdec_timeout_work(struct work_struct *work)
{
struct mtk_jpeg_dev *jpeg = container_of(work, struct mtk_jpeg_dev,
- job_timeout_work.work);
- struct mtk_jpeg_ctx *ctx;
- struct vb2_v4l2_buffer *src_buf, *dst_buf;
-
- ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
- src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
- dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+ job_timeout_work.work);
+ struct mtk_jpeg_ctx *ctx = NULL;
+ struct mtk_jpeg_dev *master_jpeg;
+ struct vb2_v4l2_buffer *src_buf;
+ enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
- jpeg->variant->hw_reset(jpeg->reg_base);
+ src_buf = jpeg->hw_param.src_buffer;
+ ctx = jpeg->hw_param.curr_ctx;
+ if (!ctx) {
+ v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n");
+ return;
+ }
- pm_runtime_put(jpeg->dev);
+ master_jpeg = ctx->jpeg;
+ if (!master_jpeg) {
+ v4l2_err(&jpeg->v4l2_dev, "master_jpeg is NULL\n");
+ return;
+ }
- v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
- v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
- v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+ mtk_jpeg_dec_reset(jpeg->reg_base[MTK_JPEGDEC_HW0]);
+ pm_runtime_put(jpeg->dec_pm.dev);
+ clk_disable_unprepare(jpeg->dec_pm.dec_clk.clk_info->jpegdec_clk);
+ jpeg->hw_state = MTK_JPEG_HW_IDLE;
+ atomic_inc(&jpeg->hw_rdy);
+ wake_up(&master_jpeg->hw_wq);
+ v4l2_m2m_buf_done(src_buf, buf_state);
+ mtk_jpeg_put_buf(jpeg);
}
static inline void mtk_jpeg_clk_release(struct mtk_jpeg_dev *jpeg)
@@ -1643,6 +1691,22 @@ static const struct of_device_id mtk_jpegenc_drv_ids[] = {
{},
};
+static const struct of_device_id mtk_jpegdec_drv_ids[] = {
+ {
+ .compatible = "mediatek,mt8195-jpgdec0",
+ .data = (void *)MTK_JPEGDEC_HW0,
+ },
+ {
+ .compatible = "mediatek,mt8195-jpgdec1",
+ .data = (void *)MTK_JPEGDEC_HW1,
+ },
+ {
+ .compatible = "mediatek,mt8195-jpgdec2",
+ .data = (void *)MTK_JPEGDEC_HW2,
+ },
+ {},
+};
+
static inline int mtk_vdec_compare_of(struct device *dev, void *data)
{
return dev->of_node == data;
@@ -1672,6 +1736,25 @@ static const struct component_master_ops mtk_jpegenc_ops = {
.unbind = mtk_jpegenc_unbind,
};
+static inline int mtk_jpegdec_bind(struct device *dev)
+{
+ struct mtk_jpeg_dev *data = dev_get_drvdata(dev);
+
+ return component_bind_all(dev, data);
+}
+
+static inline void mtk_jpegdec_unbind(struct device *dev)
+{
+ struct mtk_jpeg_dev *data = dev_get_drvdata(dev);
+
+ component_unbind_all(dev, data);
+}
+
+static const struct component_master_ops mtk_jpegdec_ops = {
+ .bind = mtk_jpegdec_bind,
+ .unbind = mtk_jpegdec_unbind,
+};
+
struct component_match *mtk_jpegenc_match_add(struct mtk_jpeg_dev *jpeg)
{
struct device *dev = jpeg->dev;
@@ -1717,11 +1800,54 @@ struct component_match *mtk_jpegenc_match_add(struct mtk_jpeg_dev *jpeg)
return match;
}
+struct component_match *mtk_jpegdec_match_add(struct mtk_jpeg_dev *jpeg)
+{
+ struct device *dev = jpeg->dev;
+ struct component_match *match = NULL;
+ int i;
+ char compatible[128] = {0};
+
+ for (i = 0; i < ARRAY_SIZE(mtk_jpegdec_drv_ids); i++) {
+ struct device_node *comp_node;
+ enum mtk_jpegdec_hw_id comp_idx;
+ const struct of_device_id *of_id;
+
+ memcpy(compatible, mtk_jpegdec_drv_ids[i].compatible,
+ sizeof(mtk_jpegdec_drv_ids[i].compatible));
+
+ comp_node = of_find_compatible_node(NULL, NULL,
+ compatible);
+ if (!comp_node)
+ continue;
+
+ if (!of_device_is_available(comp_node)) {
+ of_node_put(comp_node);
+ v4l2_err(&jpeg->v4l2_dev, "Fail to get jpeg dec HW node\n");
+ continue;
+ }
+
+ of_id = of_match_node(mtk_jpegdec_drv_ids, comp_node);
+ if (!of_id) {
+ v4l2_err(&jpeg->v4l2_dev, "Failed to get match node\n");
+ return ERR_PTR(-EINVAL);
+ }
+
+ comp_idx = (enum mtk_jpegdec_hw_id)of_id->data;
+ v4l2_info(&jpeg->v4l2_dev, "Get component:hw_id(%d),jpeg_dev(0x%p),comp_node(0x%p)\n",
+ comp_idx, jpeg, comp_node);
+
+ jpeg->component_node[comp_idx] = comp_node;
+
+ component_match_add_release(dev, &match, mtk_vdec_release_of,
+ mtk_vdec_compare_of, comp_node);
+ }
+
+ return match;
+}
+
static int mtk_jpeg_probe(struct platform_device *pdev)
{
struct mtk_jpeg_dev *jpeg;
- struct resource *res;
- int jpeg_irq;
int ret;
struct component_match *match;
@@ -1733,50 +1859,17 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
spin_lock_init(&jpeg->hw_lock);
jpeg->dev = &pdev->dev;
jpeg->variant = of_device_get_match_data(jpeg->dev);
- INIT_DELAYED_WORK(&jpeg->job_timeout_work, mtk_jpeg_job_timeout_work);
-
- if (!jpeg->variant->is_encoder) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- jpeg->reg_base[MTK_JPEGENC_HW0] =
- devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(jpeg->reg_base[MTK_JPEGENC_HW0])) {
- ret = PTR_ERR(jpeg->reg_base[MTK_JPEGENC_HW0]);
- return ret;
- }
- jpeg_irq = platform_get_irq(pdev, 0);
- if (jpeg_irq < 0) {
- dev_err(&pdev->dev, "Failed to get jpeg_irq %d.\n",
- jpeg_irq);
- return jpeg_irq;
- }
-
- ret = devm_request_irq(&pdev->dev, jpeg_irq,
- jpeg->variant->irq_handler,
- 0, pdev->name, jpeg);
- if (ret) {
- dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
- jpeg_irq, ret);
- goto err_req_irq;
- }
-
- ret = mtk_jpeg_clk_init(jpeg);
- if (ret) {
- dev_err(&pdev->dev, "Failed to init clk\n");
- goto err_clk_init;
- }
- } else {
- init_waitqueue_head(&jpeg->hw_wq);
+ init_waitqueue_head(&jpeg->hw_wq);
- jpeg->workqueue = alloc_ordered_workqueue(MTK_JPEG_NAME,
- WQ_MEM_RECLAIM |
- WQ_FREEZABLE);
+ jpeg->workqueue = alloc_ordered_workqueue(MTK_JPEG_NAME,
+ WQ_MEM_RECLAIM |
+ WQ_FREEZABLE);
if (!jpeg->workqueue) {
dev_err(&pdev->dev, "Failed to create jpeg workqueue!\n");
ret = -EINVAL;
goto err_alloc_workqueue;
}
- }
ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
if (ret) {
@@ -1834,8 +1927,21 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
&mtk_jpegenc_ops, match);
if (ret < 0)
goto err_vfd_jpeg_register;
+ } else if (!jpeg->variant->is_encoder) {
+ match = mtk_jpegdec_match_add(jpeg);
+ if (IS_ERR_OR_NULL(match))
+ goto err_vfd_jpeg_register;
+
+ video_set_drvdata(jpeg->vdev, jpeg);
+ platform_set_drvdata(pdev, jpeg);
+ ret = component_master_add_with_match(&pdev->dev,
+ &mtk_jpegdec_ops, match);
+ if (ret < 0)
+ goto err_vfd_jpeg_register;
} else {
- pm_runtime_enable(&pdev->dev);
+ pr_err("%s : %d, platform_device is not decoder && encoder.\n",
+ __func__, __LINE__);
+ goto err_vfd_jpeg_register;
}
return 0;
@@ -1852,12 +1958,8 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
err_dev_register:
mtk_jpeg_clk_release(jpeg);
-err_clk_init:
-
err_alloc_workqueue:
-err_req_irq:
-
return ret;
}
@@ -1922,12 +2024,12 @@ static const struct dev_pm_ops mtk_jpeg_pm_ops = {
};
static const struct mtk_jpeg_variant mt8173_jpeg_drvdata = {
+ .is_encoder = false,
.clks = mt8173_jpeg_dec_clocks,
.num_clks = ARRAY_SIZE(mt8173_jpeg_dec_clocks),
.formats = mtk_jpeg_dec_formats,
.num_formats = MTK_JPEG_DEC_NUM_FORMATS,
.qops = &mtk_jpeg_dec_qops,
- .irq_handler = mtk_jpeg_dec_irq,
.hw_reset = mtk_jpeg_dec_reset,
.m2m_ops = &mtk_jpeg_dec_m2m_ops,
.dev_name = "mtk-jpeg-dec",
@@ -1956,6 +2058,10 @@ static const struct of_device_id mtk_jpeg_match[] = {
.data = &mtk_jpegenc_drvdata,
},
{
+ .compatible = "mediatek,mt8195-jpgdec",
+ .data = &mt8173_jpeg_drvdata,
+ },
+ {
.compatible = "mediatek,mt8173-jpgdec",
.data = &mt8173_jpeg_drvdata,
},
@@ -1980,6 +2086,7 @@ static struct platform_driver mtk_jpeg_driver = {
static struct platform_driver * const mtk_jpeg_source_drivers[] = {
&mtk_jpegenc_hw_driver,
+ &mtk_jpegdec_hw_driver,
&mtk_jpeg_driver,
};
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index d4259f9..156d7cb 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -92,6 +92,13 @@ enum mtk_jpegenc_hw_id {
MTK_JPEGENC_HW_MAX,
};
+enum mtk_jpegdec_hw_id {
+ MTK_JPEGDEC_HW0,
+ MTK_JPEGDEC_HW1,
+ MTK_JPEGDEC_HW2,
+ MTK_JPEGDEC_HW_MAX,
+};
+
/** * enum mtk_hw_idx - MTK hw index */
enum mtk_jpeghw_idx {
JPEGENC_HW0,
@@ -121,6 +128,25 @@ struct mtk_jpegenc_pm {
struct mtk_jpeg_dev *mtkdev;
};
+/** * struct mtk_jpegdec_clk_info - Structure used to store clock name */
+struct mtk_jpegdec_clk_info {
+ const char *clk_name;
+ struct clk *jpegdec_clk;
+};
+
+/* struct mtk_vcodec_clk - Structure used to store vcodec clock information */
+struct mtk_jpegdec_clk {
+ struct mtk_jpegdec_clk_info *clk_info;
+ int clk_num;
+};
+
+/** * struct mtk_vcodec_pm - Power management data structure */
+struct mtk_jpegdec_pm {
+ struct mtk_jpegdec_clk dec_clk;
+ struct device *dev;
+ struct mtk_jpeg_dev *mtkdev;
+};
+
/**
* struct mtk_jpeg_dev - JPEG IP abstraction
* @lock: the mutex protecting this structure
@@ -166,9 +192,13 @@ struct mtk_jpeg_dev {
struct mtk_jpeg_hw_param hw_param;
wait_queue_head_t hw_wq;
atomic_t hw_rdy;
+
+ int jpegdec_irq;
+ struct mtk_jpegdec_pm dec_pm;
};
extern struct platform_driver mtk_jpegenc_hw_driver;
+extern struct platform_driver mtk_jpegdec_hw_driver;
/**
* struct mtk_jpeg_fmt - driver's internal color format data
@@ -236,6 +266,8 @@ struct mtk_jpeg_ctx {
};
void mtk_jpegenc_timeout_work(struct work_struct *work);
+void mtk_jpegdec_timeout_work(struct work_struct *work);
irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv);
+irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv);
#endif /* _MTK_JPEG_CORE_H */
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c
index afbbfd5..c1a5d08 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.c
@@ -8,7 +8,18 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <media/videobuf2-core.h>
-
+#include <media/videobuf2-dma-contig.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/component.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+
+#include "mtk_jpeg_core.h"
#include "mtk_jpeg_dec_hw.h"
#define MTK_JPEG_DUNUM_MASK(val) (((val) - 1) & 0x3)
@@ -23,6 +34,100 @@ enum mtk_jpeg_color {
MTK_JPEG_COLOR_400 = 0x00110000
};
+typedef irqreturn_t (*jpegdec_irq_handler)(int irq, void *priv);
+
+static int mtk_jpegdec_hw_bind(struct device *dev,
+ struct device *master, void *data)
+{
+ struct mtk_jpeg_dev *comp_priv = dev_get_drvdata(dev);
+ struct mtk_jpeg_dev *master_priv = data;
+ int i;
+
+ for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++) {
+ if (dev->of_node != master_priv->component_node[i])
+ continue;
+ master_priv->hw_dev[i] = comp_priv;
+ comp_priv->comp_idx = i;
+ master_priv->reg_base[i] =
+ comp_priv->reg_base[MTK_JPEGDEC_HW0];
+ break;
+ }
+ if (i == MTK_JPEGDEC_HW_MAX) {
+ dev_err(dev, "Failed to get component node\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void mtk_jpegdec_hw_unbind(struct device *dev,
+ struct device *master, void *data)
+{
+ struct mtk_jpeg_dev *comp_priv = dev_get_drvdata(dev);
+
+ comp_priv->reg_base[MTK_JPEGDEC_HW0] = 0;
+}
+
+static const struct component_ops mtk_jpegdec_hw_component_ops = {
+ .bind = mtk_jpegdec_hw_bind,
+ .unbind = mtk_jpegdec_hw_unbind,
+};
+
+int mtk_jpegdec_init_pm(struct mtk_jpeg_dev *mtkdev)
+{
+ struct platform_device *pdev;
+ struct mtk_jpegdec_pm *pm;
+ struct mtk_jpegdec_clk *jpegdec_clk;
+ struct mtk_jpegdec_clk_info *clk_info;
+ int i = 0, ret = 0;
+
+ pdev = mtkdev->plat_dev;
+ pm = &mtkdev->dec_pm;
+ pm->mtkdev = mtkdev;
+
+ jpegdec_clk = &pm->dec_clk;
+ pm->dev = &pdev->dev;
+ jpegdec_clk->clk_num =
+ of_property_count_strings(pdev->dev.of_node, "clock-names");
+ if (jpegdec_clk->clk_num > 0) {
+ jpegdec_clk->clk_info = devm_kcalloc(&pdev->dev,
+ jpegdec_clk->clk_num,
+ sizeof(*clk_info),
+ GFP_KERNEL);
+ if (!jpegdec_clk->clk_info)
+ return -ENOMEM;
+ } else {
+ pr_err("Failed to get jpegdec clock count\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < jpegdec_clk->clk_num; i++) {
+ clk_info = &jpegdec_clk->clk_info[i];
+ ret = of_property_read_string_index(pdev->dev.of_node,
+ "clock-names", i,
+ &clk_info->clk_name);
+ if (ret) {
+ pr_err("Failed to get jpegdec clock name id = %d", i);
+ return ret;
+ }
+
+ clk_info->jpegdec_clk = devm_clk_get(&pdev->dev,
+ clk_info->clk_name);
+ if (IS_ERR(clk_info->jpegdec_clk)) {
+ pr_err("devm_clk_get (%d)%s fail",
+ i, clk_info->clk_name);
+ return PTR_ERR(clk_info->jpegdec_clk);
+ }
+ }
+
+ pm_runtime_enable(pm->dev);
+ return ret;
+}
+
+void mtk_jpegdec_release_pm(struct mtk_jpeg_dev *dev)
+{
+ pm_runtime_disable(dev->dec_pm.dev);
+}
+
static inline int mtk_jpeg_verify_align(u32 val, int align, u32 reg)
{
if (val & (align - 1)) {
@@ -407,3 +512,109 @@ void mtk_jpeg_dec_set_config(void __iomem *base,
config->dma_last_mcu);
mtk_jpeg_dec_set_pause_mcu_idx(base, config->total_mcu);
}
+
+static int mtk_jpegdec_hw_init_irq(struct mtk_jpeg_dev *dev,
+ jpegdec_irq_handler irq_handler)
+{
+ struct platform_device *pdev = dev->plat_dev;
+ int ret;
+
+ dev->jpegdec_irq = platform_get_irq(pdev, 0);
+ if (dev->jpegdec_irq < 0) {
+ dev_err(&pdev->dev, "Failed to get irq resource");
+ return dev->jpegdec_irq;
+ }
+
+ ret = devm_request_irq(&pdev->dev, dev->jpegdec_irq,
+ irq_handler, 0, pdev->name, dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to install dev->jpegdec_irq %d (%d)",
+ dev->jpegdec_irq, ret);
+
+ return -ENOENT;
+ }
+
+ return 0;
+}
+
+static int mtk_jpegdec_hw_probe(struct platform_device *pdev)
+{
+ struct mtk_jpeg_dev *dev;
+ jpegdec_irq_handler irq_handler;
+ int ret;
+
+ dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+ dev->plat_dev = pdev;
+ spin_lock_init(&dev->irqlock);
+ mutex_init(&dev->dev_mutex);
+ atomic_set(&dev->hw_rdy, 1U);
+ spin_lock_init(&dev->hw_lock);
+
+ dev->hw_state = MTK_JPEG_HW_IDLE;
+ INIT_DELAYED_WORK(&dev->job_timeout_work, mtk_jpegdec_timeout_work);
+
+ ret = mtk_jpegdec_init_pm(dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to get jpeg dec clock source");
+ return ret;
+ }
+
+ dev->reg_base[MTK_JPEGDEC_HW0] =
+ devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR((__force void *)dev->reg_base[MTK_JPEGDEC_HW0])) {
+ ret = PTR_ERR((__force void *)dev->reg_base[MTK_JPEGDEC_HW0]);
+ goto err;
+ }
+
+ irq_handler = of_device_get_match_data(&pdev->dev);
+ if (!irq_handler) {
+ dev_err(&pdev->dev, "Failed to get match data.\n");
+ goto err;
+ }
+
+ ret = mtk_jpegdec_hw_init_irq(dev, irq_handler);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to register JPEGDEC irq handler.\n");
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, dev);
+
+ ret = component_add(&pdev->dev, &mtk_jpegdec_hw_component_ops);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to component_add: %d\n", ret);
+ goto err;
+ }
+
+ return 0;
+
+err:
+ mtk_jpegdec_release_pm(dev);
+ return ret;
+}
+
+static const struct of_device_id mtk_jpegdec_hw_ids[] = {
+ {
+ .compatible = "mediatek,mt8195-jpgdec0",
+ .data = mtk_jpegdec_hw_irq_handler,
+ },
+ { .compatible = "mediatek,mt8195-jpgdec1",
+ .data = mtk_jpegdec_hw_irq_handler,
+ },
+ { .compatible = "mediatek,mt8195-jpgdec2",
+ .data = mtk_jpegdec_hw_irq_handler,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtk_jpegdec_hw_ids);
+
+struct platform_driver mtk_jpegdec_hw_driver = {
+ .probe = mtk_jpegdec_hw_probe,
+ .driver = {
+ .name = "mtk-jpegdec-hw",
+ .of_match_table = mtk_jpegdec_hw_ids,
+ },
+};
+
--
2.6.4
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