[V7,0/8] Support multi-hardware jpeg decoder for MT8195

[V7,0/8] Support multi-hardware jpeg decoder for MT8195

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

This series adds support for multi hardware jpeg decoding,
by first adding use of_platform_populate to manage each hardware
information: interrupt, clock, register bases and power.
Secondly add decoding work queue to deal with the decoding requests
of multi-hardware at the same time. Lastly, add output picture
reorder function interface to eliminate the out of order images.

This series has been tested with both MT8195.
Decoding worked for this chip.

Patch 1 Adds jpeg decoder dt-bindings for mt8195

Patches 2 jpeg decoder builds three module for using Multi-HW,
export some functions to make them visible by other modules.

Patch 3 use of_platform_populate to manage multi-hardware.

Patch 4 add jpeg decoding timeout function to judge hardware timeout.

Patch 5 add decoding work queue to deal with multi-hardware decoding
at the same time.

Patch 6 add output picture reorder function to order images.

Patch 7 refactor jpegdec func interface for HW working.

Patch 8 add stop cmd function to deal with EOS operation.

---
This series patches dependent on:
media_stage tree:
[1]
https://git.linuxtv.org/media_stage.git/commit/?id=b3627647f9ea7473d10fb08a95fd7c4133a17ca4

patch1 new jpegdec dt-bindings included files
[2] MM IOMMU binding:
https://patchwork.kernel.org/project/linux-mediatek/patch/20220217113453.13658-2-yong.wu@mediatek.com/

[3] MT8195 power domain:
https://patchwork.kernel.org/project/linux-mediatek/list/?series=580579

Changes compared with v6:
- some modifications for patch v6's review comments.

Changes compared with v5:
- some modifications for patch v5's review comments.
- fix yaml file check errors.

Changes compared with v4:
- some modifications for patch v4's review comments.
- fix Gstreamer test errors.

Changes compared with v3:
- some modifications for patch v3's review comments.

Changes compared with v2:
- add stop cmd function.
- some modifications for patch v1's review comments.

Changes compared with v1:
- new yaml file for mt8195 jpeg decoder.
- some modifications for patch v1's review comments.

kyrie wu (8):
  dt-bindings: mediatek: Add mediatek,mt8195-jpgdec compatible
  media: mtk-jpegdec: export jpeg decoder functions
  media: mtk-jpegdec: support jpegdec multi-hardware
  media: mtk-jpegdec: add jpegdec timeout func interface
  media: mtk-jpegdec: add jpeg decode worker interface
  media: mtk-jpegdec: add output pic reorder interface
  media: mtk-jpegdec: refactor jpegdec func interface
  mtk-jpegdec: add stop cmd interface for jpgdec

 .../media/mediatek,mt8195-jpegdec.yaml        | 169 ++++++++++
 drivers/media/platform/mediatek/jpeg/Makefile |   5 +-
 .../platform/mediatek/jpeg/mtk_jpeg_core.c    | 233 ++++++++++++-
 .../platform/mediatek/jpeg/mtk_jpeg_core.h    |  46 +++
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  | 314 ++++++++++++++++--
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.h  |   3 +-
 .../platform/mediatek/jpeg/mtk_jpeg_dec_reg.h |   1 +
 7 files changed, 739 insertions(+), 32 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml

-- 
2.18.0

[V7,1/8] dt-bindings: mediatek: Add mediatek,mt8195-jpgdec compatible

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

Add mediatek,mt8195-jpgdec compatible to binding document.

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 .../media/mediatek,mt8195-jpegdec.yaml        | 169 ++++++++++++++++++
 1 file changed, 169 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml

diff --git a/Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml b/Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml
new file mode 100644
index 000000000000..9135cf889d1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml
@@ -0,0 +1,169 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/mediatek,mt8195-jpegdec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek JPEG Encoder Device Tree Bindings
+
+maintainers:
+  - kyrie wu <kyrie.wu@mediatek.corp-partner.google.com>
+
+description:
+  MediaTek JPEG Decoder is the JPEG decode hardware present in MediaTek SoCs
+
+properties:
+  compatible:
+    items:
+      - const: mediatek,mt8195-jpgdec
+
+  power-domains:
+    maxItems: 1
+
+  iommus:
+    maxItems: 6
+    description:
+      Points to the respective IOMMU block with master port as argument, see
+      Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
+      Ports are according to the HW.
+
+  dma-ranges:
+    maxItems: 1
+    description: |
+      Describes the physical address space of IOMMU maps to memory.
+
+  "#address-cells":
+    const: 2
+
+  "#size-cells":
+    const: 2
+
+  ranges: true
+
+# Required child node:
+patternProperties:
+  "^jpgdec@[0-9a-f]+$":
+    type: object
+    description:
+      The jpeg decoder hardware device node which should be added as subnodes to
+      the main jpeg node.
+
+    properties:
+      compatible:
+        const: mediatek,mt8195-jpgdec-hw
+
+      reg:
+        maxItems: 1
+
+      iommus:
+        minItems: 1
+        maxItems: 32
+        description:
+          List of the hardware port in respective IOMMU block for current Socs.
+          Refer to bindings/iommu/mediatek,iommu.yaml.
+
+      interrupts:
+        maxItems: 1
+
+      clocks:
+        maxItems: 1
+
+      clock-names:
+        items:
+          - const: jpgdec
+
+      power-domains:
+        maxItems: 1
+
+    required:
+      - compatible
+      - reg
+      - iommus
+      - interrupts
+      - clocks
+      - clock-names
+      - power-domains
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - power-domains
+  - iommus
+  - dma-ranges
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/memory/mt8195-memory-port.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/mt8195-clk.h>
+    #include <dt-bindings/power/mt8195-power.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        jpgdec_master {
+                compatible = "mediatek,mt8195-jpgdec";
+                power-domains = <&spm MT8195_POWER_DOMAIN_VDEC1>;
+                iommus = <&iommu_vpp M4U_PORT_L19_JPGDEC_WDMA0>,
+                     <&iommu_vpp M4U_PORT_L19_JPGDEC_BSDMA0>,
+                     <&iommu_vpp M4U_PORT_L19_JPGDEC_WDMA1>,
+                     <&iommu_vpp M4U_PORT_L19_JPGDEC_BSDMA1>,
+                     <&iommu_vpp M4U_PORT_L19_JPGDEC_BUFF_OFFSET1>,
+                     <&iommu_vpp M4U_PORT_L19_JPGDEC_BUFF_OFFSET0>;
+                dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
+                #address-cells = <2>;
+                #size-cells = <2>;
+                ranges;
+
+                jpgdec@1a040000 {
+                    compatible = "mediatek,mt8195-jpgdec-hw";
+                    reg = <0 0x1a040000 0 0x10000>;/* JPGDEC_C0 */
+                    iommus = <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA0>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA0>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA1>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA1>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET1>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET0>;
+                    interrupts = <GIC_SPI 343 IRQ_TYPE_LEVEL_HIGH 0>;
+                    clocks = <&vencsys CLK_VENC_JPGDEC>;
+                    clock-names = "jpgdec";
+                    power-domains = <&spm MT8195_POWER_DOMAIN_VDEC0>;
+                };
+
+                jpgdec@1a050000 {
+                    compatible = "mediatek,mt8195-jpgdec-hw";
+                    reg = <0 0x1a050000 0 0x10000>;/* JPGDEC_C1 */
+                    iommus = <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA0>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA0>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA1>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA1>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET1>,
+                        <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET0>;
+                    interrupts = <GIC_SPI 344 IRQ_TYPE_LEVEL_HIGH 0>;
+                    clocks = <&vencsys CLK_VENC_JPGDEC_C1>;
+                    clock-names = "jpgdec";
+                    power-domains = <&spm MT8195_POWER_DOMAIN_VDEC1>;
+                };
+
+                jpgdec@1b040000 {
+                    compatible = "mediatek,mt8195-jpgdec-hw";
+                    reg = <0 0x1b040000 0 0x10000>;/* JPGDEC_C2 */
+                    iommus = <&iommu_vpp M4U_PORT_L20_JPGDEC_WDMA0>,
+                        <&iommu_vpp M4U_PORT_L20_JPGDEC_BSDMA0>,
+                        <&iommu_vpp M4U_PORT_L20_JPGDEC_WDMA1>,
+                        <&iommu_vpp M4U_PORT_L20_JPGDEC_BSDMA1>,
+                        <&iommu_vpp M4U_PORT_L20_JPGDEC_BUFF_OFFSET1>,
+                        <&iommu_vpp M4U_PORT_L20_JPGDEC_BUFF_OFFSET0>;
+                    interrupts = <GIC_SPI 348 IRQ_TYPE_LEVEL_HIGH 0>;
+                    clocks = <&vencsys_core1 CLK_VENC_CORE1_JPGDEC>;
+                    clock-names = "jpgdec";
+                    power-domains = <&spm MT8195_POWER_DOMAIN_VDEC2>;
+                };
+        };
+    };
-- 
2.18.0

[V7,2/8] media: mtk-jpegdec: export jpeg decoder functions

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

mtk jpeg decoder is built as a module, export some functions to make them
visible by other modules.

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index 1e3852295f2f..d2f25f43e852 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -189,6 +189,7 @@ int mtk_jpeg_dec_fill_param(struct mtk_jpeg_dec_param *param)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(mtk_jpeg_dec_fill_param);
 
 u32 mtk_jpeg_dec_get_int_status(void __iomem *base)
 {
@@ -200,6 +201,7 @@ u32 mtk_jpeg_dec_get_int_status(void __iomem *base)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(mtk_jpeg_dec_get_int_status);
 
 u32 mtk_jpeg_dec_enum_result(u32 irq_result)
 {
@@ -216,11 +218,13 @@ u32 mtk_jpeg_dec_enum_result(u32 irq_result)
 
 	return MTK_JPEG_DEC_RESULT_ERROR_UNKNOWN;
 }
+EXPORT_SYMBOL_GPL(mtk_jpeg_dec_enum_result);
 
 void mtk_jpeg_dec_start(void __iomem *base)
 {
 	writel(0, base + JPGDEC_REG_TRIG);
 }
+EXPORT_SYMBOL_GPL(mtk_jpeg_dec_start);
 
 static void mtk_jpeg_dec_soft_reset(void __iomem *base)
 {
@@ -240,6 +244,7 @@ void mtk_jpeg_dec_reset(void __iomem *base)
 	mtk_jpeg_dec_soft_reset(base);
 	mtk_jpeg_dec_hard_reset(base);
 }
+EXPORT_SYMBOL_GPL(mtk_jpeg_dec_reset);
 
 static void mtk_jpeg_dec_set_brz_factor(void __iomem *base, u8 yscale_w,
 					u8 yscale_h, u8 uvscale_w, u8 uvscale_h)
@@ -408,3 +413,4 @@ void mtk_jpeg_dec_set_config(void __iomem *base,
 				   config->dma_last_mcu);
 	mtk_jpeg_dec_set_pause_mcu_idx(base, config->total_mcu);
 }
+EXPORT_SYMBOL_GPL(mtk_jpeg_dec_set_config);
-- 
2.18.0

[V7,3/8] media: mtk-jpegdec: support jpegdec multi-hardware

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

support jpegdec multi-hardware includes HW0/HW1/HW2.

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 drivers/media/platform/mediatek/jpeg/Makefile |   5 +-
 .../platform/mediatek/jpeg/mtk_jpeg_core.h    |  37 ++++
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  | 171 ++++++++++++++++++
 3 files changed, 211 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/mediatek/jpeg/Makefile b/drivers/media/platform/mediatek/jpeg/Makefile
index 69703db4b0a5..26e84852523e 100644
--- a/drivers/media/platform/mediatek/jpeg/Makefile
+++ b/drivers/media/platform/mediatek/jpeg/Makefile
@@ -1,9 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_VIDEO_MEDIATEK_JPEG) += mtk_jpeg.o \
-	mtk-jpeg-enc-hw.o
+	mtk-jpeg-enc-hw.o \
+	mtk-jpeg-dec-hw.o
 
 mtk_jpeg-y := mtk_jpeg_core.o \
-		 mtk_jpeg_dec_hw.o \
 		 mtk_jpeg_dec_parse.o
 
 mtk-jpeg-enc-hw-y := mtk_jpeg_enc_hw.o
+mtk-jpeg-dec-hw-y := mtk_jpeg_dec_hw.o
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
index 716a04a1d397..80af31ba8c3a 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
@@ -102,6 +102,13 @@ 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,
+};
+
 /**
  * struct mtk_jpegenc_clk - Structure used to store vcodec clock information
  */
@@ -110,6 +117,14 @@ struct mtk_jpegenc_clk {
 	int clk_num;
 };
 
+/**
+ * struct mtk_jpegdec_clk - Structure used to store vcodec clock information
+ */
+struct mtk_jpegdec_clk {
+	struct clk_bulk_data *clks;
+	int clk_num;
+};
+
 /**
  * struct mtk_jpegenc_comp_dev - JPEG COREX abstraction
  * @dev:		JPEG device
@@ -138,6 +153,24 @@ struct mtk_jpegenc_comp_dev {
 	spinlock_t hw_lock;
 };
 
+/**
+ * struct mtk_jpegdec_comp_dev - JPEG COREX abstraction
+ * @dev:			JPEG device
+ * @plat_dev:			platform device data
+ * @reg_base:			JPEG registers mapping
+ * @master_dev:			mtk_jpeg_dev device
+ * @jdec_clk:			mtk_jpegdec_clk
+ * @jpegdec_irq:		jpeg decode irq num
+ */
+struct mtk_jpegdec_comp_dev {
+	struct device *dev;
+	struct platform_device *plat_dev;
+	void __iomem *reg_base;
+	struct mtk_jpeg_dev *master_dev;
+	struct mtk_jpegdec_clk jdec_clk;
+	int jpegdec_irq;
+};
+
 /**
  * struct mtk_jpeg_dev - JPEG IP abstraction
  * @lock:		the mutex protecting this structure
@@ -170,6 +203,10 @@ struct mtk_jpeg_dev {
 	bool is_jpgenc_multihw;
 	wait_queue_head_t enc_hw_wq;
 	atomic_t enchw_rdy;
+
+	void __iomem *reg_decbase[MTK_JPEGDEC_HW_MAX];
+	struct mtk_jpegdec_comp_dev *dec_hw_dev[MTK_JPEGDEC_HW_MAX];
+	bool is_jpgdec_multihw;
 };
 
 /**
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index d2f25f43e852..bc48054d847f 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -5,9 +5,24 @@
  *         Rick Chang <rick.chang@mediatek.com>
  */
 
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <media/media-device.h>
 #include <media/videobuf2-core.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-event.h>
 
 #include "mtk_jpeg_core.h"
 #include "mtk_jpeg_dec_hw.h"
@@ -24,6 +39,16 @@ enum mtk_jpeg_color {
 	MTK_JPEG_COLOR_400		= 0x00110000
 };
 
+#if defined(CONFIG_OF)
+static const struct of_device_id mtk_jpegdec_hw_ids[] = {
+	{
+		.compatible = "mediatek,mt8195-jpgdec-hw",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_jpegdec_hw_ids);
+#endif
+
 static inline int mtk_jpeg_verify_align(u32 val, int align, u32 reg)
 {
 	if (val & (align - 1)) {
@@ -414,3 +439,149 @@ void mtk_jpeg_dec_set_config(void __iomem *base,
 	mtk_jpeg_dec_set_pause_mcu_idx(base, config->total_mcu);
 }
 EXPORT_SYMBOL_GPL(mtk_jpeg_dec_set_config);
+
+static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
+{
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	enum vb2_buffer_state buf_state;
+	struct mtk_jpeg_ctx *ctx;
+	u32 dec_irq_ret;
+	u32 irq_status;
+	int i;
+
+	struct mtk_jpegdec_comp_dev *jpeg = priv;
+	struct mtk_jpeg_dev *master_jpeg = jpeg->master_dev;
+
+	irq_status = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
+	dec_irq_ret = mtk_jpeg_dec_enum_result(irq_status);
+	if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
+		mtk_jpeg_dec_reset(jpeg->reg_base);
+	if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE)
+		return IRQ_NONE;
+
+	ctx = v4l2_m2m_get_curr_priv(master_jpeg->m2m_dev);
+	if (!ctx) {
+		dev_err(jpeg->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);
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
+	jpeg_src_buf =
+		container_of(src_buf, struct mtk_jpeg_src_buf, b);
+
+	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;
+
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+	v4l2_m2m_job_finish(master_jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	pm_runtime_put(ctx->jpeg->dev);
+
+	return IRQ_HANDLED;
+}
+
+static int mtk_jpegdec_hw_init_irq(struct mtk_jpegdec_comp_dev *dev)
+{
+	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,
+			       mtk_jpegdec_hw_irq_handler,
+			       0,
+			       pdev->name, dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to devm_request_irq %d (%d)",
+			dev->jpegdec_irq, ret);
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+static int mtk_jpegdec_hw_probe(struct platform_device *pdev)
+{
+	struct mtk_jpegdec_clk *jpegdec_clk;
+	struct mtk_jpeg_dev *master_dev;
+	struct mtk_jpegdec_comp_dev *dev;
+	int ret, i;
+
+	struct device *decs = &pdev->dev;
+
+	if (!decs->parent)
+		return -EPROBE_DEFER;
+
+	master_dev = dev_get_drvdata(decs->parent);
+	if (!master_dev)
+		return -EPROBE_DEFER;
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->plat_dev = pdev;
+	dev->dev = &pdev->dev;
+
+	if (!master_dev->is_jpgdec_multihw) {
+		master_dev->is_jpgdec_multihw = true;
+		for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++)
+			master_dev->dec_hw_dev[i] = NULL;
+	}
+
+	jpegdec_clk = &dev->jdec_clk;
+
+	jpegdec_clk->clk_num = devm_clk_bulk_get_all(&pdev->dev,
+						     &jpegdec_clk->clks);
+	if (jpegdec_clk->clk_num < 0)
+		return dev_err_probe(&pdev->dev,
+				      jpegdec_clk->clk_num,
+				      "Failed to get jpegdec clock count.\n");
+
+	dev->reg_base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dev->reg_base))
+		return PTR_ERR(dev->reg_base);
+
+	ret = mtk_jpegdec_hw_init_irq(dev);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Failed to register JPEGDEC irq handler.\n");
+
+	for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++) {
+		if (master_dev->dec_hw_dev[i])
+			continue;
+
+		master_dev->dec_hw_dev[i] = dev;
+		master_dev->reg_decbase[i] = dev->reg_base;
+		dev->master_dev = master_dev;
+	}
+
+	platform_set_drvdata(pdev, dev);
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+}
+
+struct platform_driver mtk_jpegdec_hw_driver = {
+	.probe = mtk_jpegdec_hw_probe,
+	.driver = {
+		.name = "mtk-jpegdec-hw",
+		.of_match_table = of_match_ptr(mtk_jpegdec_hw_ids),
+	},
+};
+
+module_platform_driver(mtk_jpegdec_hw_driver);
+
+MODULE_DESCRIPTION("MediaTek JPEG decode HW driver");
+MODULE_LICENSE("GPL");
-- 
2.18.0

[V7,4/8] media: mtk-jpegdec: add jpegdec timeout func interface

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

Generalizes jpegdec timeout func interfaces to handle HW timeout.

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 .../platform/mediatek/jpeg/mtk_jpeg_core.h    |  2 ++
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  | 24 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
index 80af31ba8c3a..0d2d2baedcf7 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
@@ -169,6 +169,8 @@ struct mtk_jpegdec_comp_dev {
 	struct mtk_jpeg_dev *master_dev;
 	struct mtk_jpegdec_clk jdec_clk;
 	int jpegdec_irq;
+	struct delayed_work job_timeout_work;
+	struct mtk_jpeg_hw_param hw_param;
 };
 
 /**
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index bc48054d847f..78d14733b269 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -440,6 +440,25 @@ void mtk_jpeg_dec_set_config(void __iomem *base,
 }
 EXPORT_SYMBOL_GPL(mtk_jpeg_dec_set_config);
 
+static void mtk_jpegdec_timeout_work(struct work_struct *work)
+{
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	struct mtk_jpegdec_comp_dev *cjpeg =
+		container_of(work, struct mtk_jpegdec_comp_dev,
+			     job_timeout_work.work);
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+
+	src_buf = cjpeg->hw_param.src_buffer;
+	dst_buf = cjpeg->hw_param.dst_buffer;
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
+
+	mtk_jpeg_dec_reset(cjpeg->reg_base);
+	clk_disable_unprepare(cjpeg->jdec_clk.clks->clk);
+	pm_runtime_put(cjpeg->dev);
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+}
+
 static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
 {
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -453,6 +472,8 @@ static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
 	struct mtk_jpegdec_comp_dev *jpeg = priv;
 	struct mtk_jpeg_dev *master_jpeg = jpeg->master_dev;
 
+	cancel_delayed_work(&jpeg->job_timeout_work);
+
 	irq_status = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
 	dec_irq_ret = mtk_jpeg_dec_enum_result(irq_status);
 	if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
@@ -540,6 +561,9 @@ static int mtk_jpegdec_hw_probe(struct platform_device *pdev)
 			master_dev->dec_hw_dev[i] = NULL;
 	}
 
+	INIT_DELAYED_WORK(&dev->job_timeout_work,
+			  mtk_jpegdec_timeout_work);
+
 	jpegdec_clk = &dev->jdec_clk;
 
 	jpegdec_clk->clk_num = devm_clk_bulk_get_all(&pdev->dev,
-- 
2.18.0

[V7,5/8] media: mtk-jpegdec: add jpeg decode worker interface

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

Add jpeg decoding worker to ensure that three HWs
run in parallel in MT8195.

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 .../platform/mediatek/jpeg/mtk_jpeg_core.c    | 196 ++++++++++++++++++
 .../platform/mediatek/jpeg/mtk_jpeg_core.h    |   6 +
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  |  39 ++--
 3 files changed, 229 insertions(+), 12 deletions(-)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 7ef762496556..b1ed045bae4e 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -1102,6 +1102,180 @@ static void mtk_jpeg_multicore_enc_device_run(void *priv)
 	queue_work(jpeg->workqueue, &ctx->jpeg_work);
 }
 
+static int mtk_jpegdec_get_hw(struct mtk_jpeg_ctx *ctx)
+{
+	struct mtk_jpegdec_comp_dev *comp_jpeg;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	unsigned long flags;
+	int hw_id = -1;
+	int i;
+
+	spin_lock_irqsave(&jpeg->hw_lock, flags);
+	for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++) {
+		comp_jpeg = jpeg->dec_hw_dev[i];
+		if (comp_jpeg->hw_state == MTK_JPEG_HW_IDLE) {
+			hw_id = i;
+			comp_jpeg->hw_state = MTK_JPEG_HW_BUSY;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+
+	return hw_id;
+}
+
+static int mtk_jpegdec_put_hw(struct mtk_jpeg_dev *jpeg, int hw_id)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&jpeg->hw_lock, flags);
+	jpeg->dec_hw_dev[hw_id]->hw_state =
+		MTK_JPEG_HW_IDLE;
+	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+
+	return 0;
+}
+
+static int mtk_jpegdec_set_hw_param(struct mtk_jpeg_ctx *ctx,
+				    int hw_id,
+				    struct vb2_v4l2_buffer *src_buf,
+				    struct vb2_v4l2_buffer *dst_buf)
+{
+	struct mtk_jpegdec_comp_dev *jpeg =
+		ctx->jpeg->dec_hw_dev[hw_id];
+
+	jpeg->hw_param.curr_ctx = ctx;
+	jpeg->hw_param.src_buffer = src_buf;
+	jpeg->hw_param.dst_buffer = dst_buf;
+
+	return 0;
+}
+
+static void mtk_jpegdec_worker(struct work_struct *work)
+{
+	struct mtk_jpeg_ctx *ctx = container_of(work, struct mtk_jpeg_ctx,
+		jpeg_work);
+	struct mtk_jpegdec_comp_dev *comp_jpeg[MTK_JPEGDEC_HW_MAX];
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	struct mtk_jpeg_src_buf *jpeg_src_buf, *jpeg_dst_buf;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int ret, i, hw_id = 0;
+	struct mtk_jpeg_bs bs;
+	struct mtk_jpeg_fb fb;
+	unsigned long flags;
+
+	for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++)
+		comp_jpeg[i] = jpeg->dec_hw_dev[i];
+	i = 0;
+
+retry_select:
+	hw_id = mtk_jpegdec_get_hw(ctx);
+	if (hw_id < 0) {
+		ret = wait_event_interruptible_timeout(jpeg->dec_hw_wq,
+						       atomic_read(&jpeg->dechw_rdy) > 0,
+						       MTK_JPEG_HW_TIMEOUT_MSEC);
+		if (ret != 0 || (i++ > MTK_JPEG_MAX_RETRY_TIME)) {
+			dev_err(jpeg->dev, "%s : %d, all HW are busy\n",
+				__func__, __LINE__);
+			v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+			return;
+		}
+
+		goto retry_select;
+	}
+
+	atomic_dec(&jpeg->dechw_rdy);
+	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	if (!src_buf)
+		goto getbuf_fail;
+
+	dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+	if (!dst_buf)
+		goto getbuf_fail;
+
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
+	jpeg_dst_buf = mtk_jpeg_vb2_to_srcbuf(&dst_buf->vb2_buf);
+
+	if (mtk_jpeg_check_resolution_change(ctx,
+					     &jpeg_src_buf->dec_param)) {
+		mtk_jpeg_queue_src_chg_event(ctx);
+		ctx->state = MTK_JPEG_SOURCE_CHANGE;
+		goto dec_end;
+	}
+
+	jpeg_src_buf->curr_ctx = ctx;
+	jpeg_src_buf->frame_num = ctx->total_frame_num;
+	jpeg_dst_buf->curr_ctx = ctx;
+	jpeg_dst_buf->frame_num = ctx->total_frame_num;
+	ctx->total_frame_num++;
+
+	mtk_jpegdec_set_hw_param(ctx, hw_id, src_buf, dst_buf);
+	ret = pm_runtime_get_sync(comp_jpeg[hw_id]->dev);
+	if (ret < 0) {
+		dev_err(jpeg->dev, "%s : %d, pm_runtime_get_sync fail !!!\n",
+			__func__, __LINE__);
+		goto dec_end;
+	}
+
+	ret = clk_prepare_enable(comp_jpeg[hw_id]->jdec_clk.clks->clk);
+	if (ret) {
+		dev_err(jpeg->dev, "%s : %d, jpegdec clk_prepare_enable fail\n",
+			__func__, __LINE__);
+		goto clk_end;
+	}
+
+	schedule_delayed_work(&comp_jpeg[hw_id]->job_timeout_work,
+			      msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+
+	mtk_jpeg_set_dec_src(ctx, &src_buf->vb2_buf, &bs);
+	if (mtk_jpeg_set_dec_dst(ctx,
+				 &jpeg_src_buf->dec_param,
+				 &dst_buf->vb2_buf, &fb)) {
+		dev_err(jpeg->dev, "%s : %d, mtk_jpeg_set_dec_dst fail\n",
+			__func__, __LINE__);
+		goto setdst_end;
+	}
+
+	spin_lock_irqsave(&comp_jpeg[hw_id]->hw_lock, flags);
+	mtk_jpeg_dec_reset(comp_jpeg[hw_id]->reg_base);
+	mtk_jpeg_dec_set_config(jpeg->reg_base,
+				&jpeg_src_buf->dec_param,
+				&bs,
+				&fb);
+	mtk_jpeg_dec_start(comp_jpeg[hw_id]->reg_base);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	spin_unlock_irqrestore(&comp_jpeg[hw_id]->hw_lock, flags);
+
+	return;
+
+setdst_end:
+	clk_disable_unprepare(comp_jpeg[hw_id]->jdec_clk.clks->clk);
+clk_end:
+	pm_runtime_put(comp_jpeg[hw_id]->dev);
+dec_end:
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+getbuf_fail:
+	atomic_inc(&jpeg->dechw_rdy);
+	mtk_jpegdec_put_hw(jpeg, hw_id);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+}
+
+static void mtk_jpeg_multicore_dec_device_run(void *priv)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+	queue_work(jpeg->workqueue, &ctx->jpeg_work);
+}
+
 static void mtk_jpeg_dec_device_run(void *priv)
 {
 	struct mtk_jpeg_ctx *ctx = priv;
@@ -1168,6 +1342,10 @@ static const struct v4l2_m2m_ops mtk_jpeg_multicore_enc_m2m_ops = {
 	.device_run = mtk_jpeg_multicore_enc_device_run,
 };
 
+static const struct v4l2_m2m_ops mtk_jpeg_multicore_dec_m2m_ops = {
+	.device_run = mtk_jpeg_multicore_dec_device_run,
+};
+
 static const struct v4l2_m2m_ops mtk_jpeg_dec_m2m_ops = {
 	.device_run = mtk_jpeg_dec_device_run,
 	.job_ready  = mtk_jpeg_dec_job_ready,
@@ -1371,6 +1549,9 @@ static int mtk_jpeg_open(struct file *file)
 	if (jpeg->is_jpgenc_multihw)
 		INIT_WORK(&ctx->jpeg_work, mtk_jpegenc_worker);
 
+	if (jpeg->is_jpgdec_multihw)
+		INIT_WORK(&ctx->jpeg_work, mtk_jpegdec_worker);
+
 	INIT_LIST_HEAD(&ctx->dst_done_queue);
 	spin_lock_init(&ctx->done_queue_lock);
 	v4l2_fh_init(&ctx->fh, vfd);
@@ -1678,6 +1859,17 @@ static struct mtk_jpeg_variant mtk8195_jpegenc_drvdata = {
 	.cap_q_default_fourcc = V4L2_PIX_FMT_JPEG,
 };
 
+static const struct mtk_jpeg_variant mtk8195_jpegdec_drvdata = {
+	.formats = mtk_jpeg_dec_formats,
+	.num_formats = MTK_JPEG_DEC_NUM_FORMATS,
+	.qops = &mtk_jpeg_dec_qops,
+	.m2m_ops = &mtk_jpeg_multicore_dec_m2m_ops,
+	.dev_name = "mtk-jpeg-dec",
+	.ioctl_ops = &mtk_jpeg_dec_ioctl_ops,
+	.out_q_default_fourcc = V4L2_PIX_FMT_JPEG,
+	.cap_q_default_fourcc = V4L2_PIX_FMT_YUV420M,
+};
+
 #if defined(CONFIG_OF)
 static const struct of_device_id mtk_jpeg_match[] = {
 	{
@@ -1696,6 +1888,10 @@ static const struct of_device_id mtk_jpeg_match[] = {
 		.compatible = "mediatek,mt8195-jpgenc",
 		.data = &mtk8195_jpegenc_drvdata,
 	},
+	{
+		.compatible = "mediatek,mt8195-jpgdec",
+		.data = &mtk8195_jpegdec_drvdata,
+	},
 	{},
 };
 
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
index 0d2d2baedcf7..55e2759a0b23 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
@@ -171,6 +171,9 @@ struct mtk_jpegdec_comp_dev {
 	int jpegdec_irq;
 	struct delayed_work job_timeout_work;
 	struct mtk_jpeg_hw_param hw_param;
+	enum mtk_jpeg_hw_state hw_state;
+	/* spinlock protecting the hw device resource */
+	spinlock_t hw_lock;
 };
 
 /**
@@ -209,6 +212,9 @@ struct mtk_jpeg_dev {
 	void __iomem *reg_decbase[MTK_JPEGDEC_HW_MAX];
 	struct mtk_jpegdec_comp_dev *dec_hw_dev[MTK_JPEGDEC_HW_MAX];
 	bool is_jpgdec_multihw;
+	wait_queue_head_t dec_hw_wq;
+	struct workqueue_struct	*dec_workqueue;
+	atomic_t dechw_rdy;
 };
 
 /**
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index 78d14733b269..6a5806df9917 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -446,6 +446,7 @@ static void mtk_jpegdec_timeout_work(struct work_struct *work)
 	struct mtk_jpegdec_comp_dev *cjpeg =
 		container_of(work, struct mtk_jpegdec_comp_dev,
 			     job_timeout_work.work);
+	struct mtk_jpeg_dev *master_jpeg = cjpeg->master_dev;
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
 
 	src_buf = cjpeg->hw_param.src_buffer;
@@ -455,6 +456,9 @@ static void mtk_jpegdec_timeout_work(struct work_struct *work)
 	mtk_jpeg_dec_reset(cjpeg->reg_base);
 	clk_disable_unprepare(cjpeg->jdec_clk.clks->clk);
 	pm_runtime_put(cjpeg->dev);
+	cjpeg->hw_state = MTK_JPEG_HW_IDLE;
+	atomic_inc(&master_jpeg->dechw_rdy);
+	wake_up(&master_jpeg->dec_hw_wq);
 	v4l2_m2m_buf_done(src_buf, buf_state);
 	v4l2_m2m_buf_done(dst_buf, buf_state);
 }
@@ -474,22 +478,19 @@ static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
 
 	cancel_delayed_work(&jpeg->job_timeout_work);
 
+	ctx = jpeg->hw_param.curr_ctx;
+	src_buf = jpeg->hw_param.src_buffer;
+	dst_buf = jpeg->hw_param.dst_buffer;
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
+
 	irq_status = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
 	dec_irq_ret = mtk_jpeg_dec_enum_result(irq_status);
 	if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
 		mtk_jpeg_dec_reset(jpeg->reg_base);
-	if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE)
-		return IRQ_NONE;
 
-	ctx = v4l2_m2m_get_curr_priv(master_jpeg->m2m_dev);
-	if (!ctx) {
-		dev_err(jpeg->dev, "Context is NULL\n");
-		return IRQ_HANDLED;
-	}
+	if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE)
+		dev_warn(jpeg->dev, "Jpg Dec occurs unknown Err.");
 
-	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
-	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
-	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
 	jpeg_src_buf =
 		container_of(src_buf, struct mtk_jpeg_src_buf, b);
 
@@ -498,11 +499,14 @@ static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
 				      jpeg_src_buf->dec_param.comp_size[i]);
 
 	buf_state = VB2_BUF_STATE_DONE;
-
 	v4l2_m2m_buf_done(src_buf, buf_state);
 	v4l2_m2m_buf_done(dst_buf, buf_state);
-	v4l2_m2m_job_finish(master_jpeg->m2m_dev, ctx->fh.m2m_ctx);
 	pm_runtime_put(ctx->jpeg->dev);
+	clk_disable_unprepare(jpeg->jdec_clk.clks->clk);
+
+	jpeg->hw_state = MTK_JPEG_HW_IDLE;
+	wake_up(&master_jpeg->dec_hw_wq);
+	atomic_inc(&master_jpeg->dechw_rdy);
 
 	return IRQ_HANDLED;
 }
@@ -559,8 +563,19 @@ static int mtk_jpegdec_hw_probe(struct platform_device *pdev)
 		master_dev->is_jpgdec_multihw = true;
 		for (i = 0; i < MTK_JPEGDEC_HW_MAX; i++)
 			master_dev->dec_hw_dev[i] = NULL;
+
+		init_waitqueue_head(&master_dev->dec_hw_wq);
+		master_dev->workqueue = alloc_ordered_workqueue(MTK_JPEG_NAME,
+								WQ_MEM_RECLAIM
+								| WQ_FREEZABLE);
+		if (!master_dev->workqueue)
+			return -EINVAL;
 	}
 
+	atomic_set(&master_dev->dechw_rdy, MTK_JPEGDEC_HW_MAX);
+	spin_lock_init(&dev->hw_lock);
+	dev->hw_state = MTK_JPEG_HW_IDLE;
+
 	INIT_DELAYED_WORK(&dev->job_timeout_work,
 			  mtk_jpegdec_timeout_work);
 
-- 
2.18.0

[V7,6/8] media: mtk-jpegdec: add output pic reorder interface

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

add output reorder func to reorder the output images
to ensure the output pic is consistent with the input images.

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  | 47 ++++++++++++++++++-
 1 file changed, 45 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index 6a5806df9917..1ea3ce7049f1 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -440,6 +440,49 @@ void mtk_jpeg_dec_set_config(void __iomem *base,
 }
 EXPORT_SYMBOL_GPL(mtk_jpeg_dec_set_config);
 
+static void mtk_jpegdec_put_buf(struct mtk_jpegdec_comp_dev *jpeg)
+{
+	struct mtk_jpeg_src_buf *dst_done_buf, *tmp_dst_done_buf;
+	struct vb2_v4l2_buffer *dst_buffer;
+	struct list_head *temp_entry;
+	struct list_head *pos = NULL;
+	struct mtk_jpeg_ctx *ctx;
+	unsigned long flags;
+
+	ctx = jpeg->hw_param.curr_ctx;
+	if (unlikely(!ctx)) {
+		dev_err(jpeg->dev, "comp_jpeg ctx fail !!!\n");
+		return;
+	}
+
+	dst_buffer = jpeg->hw_param.dst_buffer;
+	if (!dst_buffer) {
+		dev_err(jpeg->dev, "comp_jpeg dst_buffer fail !!!\n");
+		return;
+	}
+
+	dst_done_buf = container_of(dst_buffer, struct mtk_jpeg_src_buf, b);
+
+	spin_lock_irqsave(&ctx->done_queue_lock, flags);
+	list_add_tail(&dst_done_buf->list, &ctx->dst_done_queue);
+	while (!list_empty(&ctx->dst_done_queue) &&
+	       (pos != &ctx->dst_done_queue)) {
+		list_for_each_prev_safe(pos, temp_entry, &ctx->dst_done_queue) {
+			tmp_dst_done_buf = list_entry(pos,
+						      struct mtk_jpeg_src_buf,
+						      list);
+			if (tmp_dst_done_buf->frame_num ==
+				ctx->last_done_frame_num) {
+				list_del(&tmp_dst_done_buf->list);
+				v4l2_m2m_buf_done(&tmp_dst_done_buf->b,
+						  VB2_BUF_STATE_DONE);
+				ctx->last_done_frame_num++;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&ctx->done_queue_lock, flags);
+}
+
 static void mtk_jpegdec_timeout_work(struct work_struct *work)
 {
 	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
@@ -460,7 +503,7 @@ static void mtk_jpegdec_timeout_work(struct work_struct *work)
 	atomic_inc(&master_jpeg->dechw_rdy);
 	wake_up(&master_jpeg->dec_hw_wq);
 	v4l2_m2m_buf_done(src_buf, buf_state);
-	v4l2_m2m_buf_done(dst_buf, buf_state);
+	mtk_jpegdec_put_buf(cjpeg);
 }
 
 static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
@@ -500,7 +543,7 @@ static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
 
 	buf_state = VB2_BUF_STATE_DONE;
 	v4l2_m2m_buf_done(src_buf, buf_state);
-	v4l2_m2m_buf_done(dst_buf, buf_state);
+	mtk_jpegdec_put_buf(jpeg);
 	pm_runtime_put(ctx->jpeg->dev);
 	clk_disable_unprepare(jpeg->jdec_clk.clks->clk);
 
-- 
2.18.0

[V7,7/8] media: mtk-jpegdec: refactor jpegdec func interface

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

refactor the func interface of mtk_jpeg_dec_set_config
for decode

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 .../platform/mediatek/jpeg/mtk_jpeg_core.c    | 38 +++++++++++--
 .../platform/mediatek/jpeg/mtk_jpeg_core.h    |  1 +
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  | 55 ++++++++++---------
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.h  |  3 +-
 .../platform/mediatek/jpeg/mtk_jpeg_dec_reg.h |  1 +
 5 files changed, 66 insertions(+), 32 deletions(-)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index b1ed045bae4e..cfdf94b8a2cd 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -588,6 +588,31 @@ static int mtk_jpeg_enc_s_selection(struct file *file, void *priv,
 	return 0;
 }
 
+static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct v4l2_fh *fh = file->private_data;
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct vb2_queue *vq;
+	struct vb2_buffer *vb;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+
+	if (buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		goto end;
+
+	vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type);
+	if (buf->index >= vq->num_buffers) {
+		dev_err(ctx->jpeg->dev, "buffer index out of range\n");
+		return -EINVAL;
+	}
+
+	vb = vq->bufs[buf->index];
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
+	jpeg_src_buf->bs_size = buf->m.planes[0].bytesused;
+
+end:
+	return v4l2_m2m_qbuf(file, fh->m2m_ctx, buf);
+}
+
 static const struct v4l2_ioctl_ops mtk_jpeg_enc_ioctl_ops = {
 	.vidioc_querycap                = mtk_jpeg_querycap,
 	.vidioc_enum_fmt_vid_cap	= mtk_jpeg_enum_fmt_vid_cap,
@@ -628,7 +653,7 @@ static const struct v4l2_ioctl_ops mtk_jpeg_dec_ioctl_ops = {
 	.vidioc_g_fmt_vid_out_mplane    = mtk_jpeg_g_fmt_vid_mplane,
 	.vidioc_s_fmt_vid_cap_mplane    = mtk_jpeg_s_fmt_vid_cap_mplane,
 	.vidioc_s_fmt_vid_out_mplane    = mtk_jpeg_s_fmt_vid_out_mplane,
-	.vidioc_qbuf                    = v4l2_m2m_ioctl_qbuf,
+	.vidioc_qbuf                    = mtk_jpeg_qbuf,
 	.vidioc_subscribe_event         = mtk_jpeg_subscribe_event,
 	.vidioc_g_selection		= mtk_jpeg_dec_g_selection,
 
@@ -1212,7 +1237,6 @@ static void mtk_jpegdec_worker(struct work_struct *work)
 	jpeg_src_buf->frame_num = ctx->total_frame_num;
 	jpeg_dst_buf->curr_ctx = ctx;
 	jpeg_dst_buf->frame_num = ctx->total_frame_num;
-	ctx->total_frame_num++;
 
 	mtk_jpegdec_set_hw_param(ctx, hw_id, src_buf, dst_buf);
 	ret = pm_runtime_get_sync(comp_jpeg[hw_id]->dev);
@@ -1242,9 +1266,11 @@ static void mtk_jpegdec_worker(struct work_struct *work)
 	}
 
 	spin_lock_irqsave(&comp_jpeg[hw_id]->hw_lock, flags);
+	ctx->total_frame_num++;
 	mtk_jpeg_dec_reset(comp_jpeg[hw_id]->reg_base);
-	mtk_jpeg_dec_set_config(jpeg->reg_base,
+	mtk_jpeg_dec_set_config(comp_jpeg[hw_id]->reg_base,
 				&jpeg_src_buf->dec_param,
+				jpeg_src_buf->bs_size,
 				&bs,
 				&fb);
 	mtk_jpeg_dec_start(comp_jpeg[hw_id]->reg_base);
@@ -1313,8 +1339,10 @@ static void mtk_jpeg_dec_device_run(void *priv)
 	spin_lock_irqsave(&jpeg->hw_lock, flags);
 	mtk_jpeg_dec_reset(jpeg->reg_base);
 	mtk_jpeg_dec_set_config(jpeg->reg_base,
-				&jpeg_src_buf->dec_param, &bs, &fb);
-
+				&jpeg_src_buf->dec_param,
+				jpeg_src_buf->bs_size,
+				&bs,
+				&fb);
 	mtk_jpeg_dec_start(jpeg->reg_base);
 	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
 	return;
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
index 55e2759a0b23..751a181ab067 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
@@ -80,6 +80,7 @@ struct mtk_jpeg_src_buf {
 	u32 frame_num;
 	struct vb2_v4l2_buffer b;
 	struct list_head list;
+	u32 bs_size;
 	struct mtk_jpeg_dec_param dec_param;
 
 	struct mtk_jpeg_ctx *curr_ctx;
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index 1ea3ce7049f1..91bf80f8059c 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -330,12 +330,14 @@ static void mtk_jpeg_dec_set_bs_write_ptr(void __iomem *base, u32 ptr)
 	writel(ptr, base + JPGDEC_REG_FILE_BRP);
 }
 
-static void mtk_jpeg_dec_set_bs_info(void __iomem *base, u32 addr, u32 size)
+static void mtk_jpeg_dec_set_bs_info(void __iomem *base, u32 addr, u32 size,
+				     u32 bitstream_size)
 {
 	mtk_jpeg_verify_align(addr, 16, JPGDEC_REG_FILE_ADDR);
 	mtk_jpeg_verify_align(size, 128, JPGDEC_REG_FILE_TOTAL_SIZE);
 	writel(addr, base + JPGDEC_REG_FILE_ADDR);
 	writel(size, base + JPGDEC_REG_FILE_TOTAL_SIZE);
+	writel(bitstream_size, base + JPGDEC_REG_BIT_STREAM_SIZE);
 }
 
 static void mtk_jpeg_dec_set_comp_id(void __iomem *base, u32 id_y, u32 id_u,
@@ -404,39 +406,40 @@ static void mtk_jpeg_dec_set_sampling_factor(void __iomem *base, u32 comp_num,
 }
 
 void mtk_jpeg_dec_set_config(void __iomem *base,
-			     struct mtk_jpeg_dec_param *config,
+			     struct mtk_jpeg_dec_param *cfg,
+			     u32 bitstream_size,
 			     struct mtk_jpeg_bs *bs,
 			     struct mtk_jpeg_fb *fb)
 {
-	mtk_jpeg_dec_set_brz_factor(base, 0, 0, config->uv_brz_w, 0);
+	mtk_jpeg_dec_set_brz_factor(base, 0, 0, cfg->uv_brz_w, 0);
 	mtk_jpeg_dec_set_dec_mode(base, 0);
-	mtk_jpeg_dec_set_comp0_du(base, config->unit_num);
-	mtk_jpeg_dec_set_total_mcu(base, config->total_mcu);
-	mtk_jpeg_dec_set_bs_info(base, bs->str_addr, bs->size);
+	mtk_jpeg_dec_set_comp0_du(base, cfg->unit_num);
+	mtk_jpeg_dec_set_total_mcu(base, cfg->total_mcu);
+	mtk_jpeg_dec_set_bs_info(base, bs->str_addr, bs->size, bitstream_size);
 	mtk_jpeg_dec_set_bs_write_ptr(base, bs->end_addr);
-	mtk_jpeg_dec_set_du_membership(base, config->membership, 1,
-				       (config->comp_num == 1) ? 1 : 0);
-	mtk_jpeg_dec_set_comp_id(base, config->comp_id[0], config->comp_id[1],
-				 config->comp_id[2]);
-	mtk_jpeg_dec_set_q_table(base, config->qtbl_num[0],
-				 config->qtbl_num[1], config->qtbl_num[2]);
-	mtk_jpeg_dec_set_sampling_factor(base, config->comp_num,
-					 config->sampling_w[0],
-					 config->sampling_h[0],
-					 config->sampling_w[1],
-					 config->sampling_h[1],
-					 config->sampling_w[2],
-					 config->sampling_h[2]);
-	mtk_jpeg_dec_set_mem_stride(base, config->mem_stride[0],
-				    config->mem_stride[1]);
-	mtk_jpeg_dec_set_img_stride(base, config->img_stride[0],
-				    config->img_stride[1]);
+	mtk_jpeg_dec_set_du_membership(base, cfg->membership, 1,
+				       (cfg->comp_num == 1) ? 1 : 0);
+	mtk_jpeg_dec_set_comp_id(base, cfg->comp_id[0], cfg->comp_id[1],
+				 cfg->comp_id[2]);
+	mtk_jpeg_dec_set_q_table(base, cfg->qtbl_num[0],
+				 cfg->qtbl_num[1], cfg->qtbl_num[2]);
+	mtk_jpeg_dec_set_sampling_factor(base, cfg->comp_num,
+					 cfg->sampling_w[0],
+					 cfg->sampling_h[0],
+					 cfg->sampling_w[1],
+					 cfg->sampling_h[1],
+					 cfg->sampling_w[2],
+					 cfg->sampling_h[2]);
+	mtk_jpeg_dec_set_mem_stride(base, cfg->mem_stride[0],
+				    cfg->mem_stride[1]);
+	mtk_jpeg_dec_set_img_stride(base, cfg->img_stride[0],
+				    cfg->img_stride[1]);
 	mtk_jpeg_dec_set_dst_bank0(base, fb->plane_addr[0],
 				   fb->plane_addr[1], fb->plane_addr[2]);
 	mtk_jpeg_dec_set_dst_bank1(base, 0, 0, 0);
-	mtk_jpeg_dec_set_dma_group(base, config->dma_mcu, config->dma_group,
-				   config->dma_last_mcu);
-	mtk_jpeg_dec_set_pause_mcu_idx(base, config->total_mcu);
+	mtk_jpeg_dec_set_dma_group(base, cfg->dma_mcu, cfg->dma_group,
+				   cfg->dma_last_mcu);
+	mtk_jpeg_dec_set_pause_mcu_idx(base, cfg->total_mcu);
 }
 EXPORT_SYMBOL_GPL(mtk_jpeg_dec_set_config);
 
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.h
index 87aaa5c9082b..8c31c6b12417 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.h
@@ -71,7 +71,8 @@ int mtk_jpeg_dec_fill_param(struct mtk_jpeg_dec_param *param);
 u32 mtk_jpeg_dec_get_int_status(void __iomem *dec_reg_base);
 u32 mtk_jpeg_dec_enum_result(u32 irq_result);
 void mtk_jpeg_dec_set_config(void __iomem *base,
-			     struct mtk_jpeg_dec_param *config,
+			     struct mtk_jpeg_dec_param *cfg,
+			     u32 bitstream_size,
 			     struct mtk_jpeg_bs *bs,
 			     struct mtk_jpeg_fb *fb);
 void mtk_jpeg_dec_reset(void __iomem *dec_reg_base);
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_reg.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_reg.h
index 21ec8f96797f..27b7711ca341 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_reg.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_reg.h
@@ -45,5 +45,6 @@
 #define JPGDEC_REG_QT_ID		0x0270
 #define JPGDEC_REG_INTERRUPT_STATUS	0x0274
 #define JPGDEC_REG_STATUS		0x0278
+#define JPGDEC_REG_BIT_STREAM_SIZE	0x0344
 
 #endif /* _MTK_JPEG_REG_H */
-- 
2.18.0

[V7,8/8] mtk-jpegdec: add stop cmd interface for jpgdec

[Irui Wang]

From: kyrie wu <kyrie.wu@mediatek.com>

Add stop cmd interface for jpgdec to stop stream

Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: irui wang <irui.wang@mediatek.com>
---
 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index cfdf94b8a2cd..4fa346b9ec01 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -667,6 +667,9 @@ static const struct v4l2_ioctl_ops mtk_jpeg_dec_ioctl_ops = {
 	.vidioc_streamoff               = v4l2_m2m_ioctl_streamoff,
 
 	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+
+	.vidioc_decoder_cmd = v4l2_m2m_ioctl_decoder_cmd,
+	.vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
 };
 
 static int mtk_jpeg_queue_setup(struct vb2_queue *q,
-- 
2.18.0

Re: [V7,1/8] dt-bindings: mediatek: Add mediatek,mt8195-jpgdec compatible

[Rob Herring]

On Fri, 26 Aug 2022 17:28:57 +0800, Irui Wang wrote:
> From: kyrie wu <kyrie.wu@mediatek.com>
> 
> Add mediatek,mt8195-jpgdec compatible to binding document.
> 
> Signed-off-by: kyrie wu <kyrie.wu@mediatek.com>
> Signed-off-by: irui wang <irui.wang@mediatek.com>
> ---
>  .../media/mediatek,mt8195-jpegdec.yaml        | 169 ++++++++++++++++++
>  1 file changed, 169 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Re: [V7,0/8] Support multi-hardware jpeg decoder for MT8195

[Hans Verkuil]

Hi Irui,

On 26/08/2022 11:28, Irui Wang wrote:
> From: kyrie wu <kyrie.wu@mediatek.com>
> 
> This series adds support for multi hardware jpeg decoding,
> by first adding use of_platform_populate to manage each hardware
> information: interrupt, clock, register bases and power.
> Secondly add decoding work queue to deal with the decoding requests
> of multi-hardware at the same time. Lastly, add output picture
> reorder function interface to eliminate the out of order images.
> 
> This series has been tested with both MT8195.
> Decoding worked for this chip.

When building this I get the following sparse warning and several kerneldoc
warnings:

SPARSE:drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c:661:24: warning: symbol 'mtk_jpegdec_hw_driver' was not declared. Should it be static?

kerneldoc: WARNINGS
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:127: warning: Function parameter or member 'clks' not described in 'mtk_jpegdec_clk'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:127: warning: Function parameter or member 'clk_num' not described in 'mtk_jpegdec_clk'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:178: warning: Function parameter or member 'job_timeout_work' not described in 'mtk_jpegdec_comp_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:178: warning: Function parameter or member 'hw_param' not described in 'mtk_jpegdec_comp_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:178: warning: Function parameter or member 'hw_state' not described in 'mtk_jpegdec_comp_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:178: warning: Function parameter or member 'hw_lock' not described in 'mtk_jpegdec_comp_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:219: warning: Function parameter or member 'reg_decbase' not described in 'mtk_jpeg_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:219: warning: Function parameter or member 'dec_hw_dev' not described in 'mtk_jpeg_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:219: warning: Function parameter or member 'is_jpgdec_multihw' not described in 'mtk_jpeg_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:219: warning: Function parameter or member 'dec_hw_wq' not described in 'mtk_jpeg_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:219: warning: Function parameter or member 'dec_workqueue' not described in 'mtk_jpeg_dev'
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h:219: warning: Function parameter or member 'dechw_rdy' not described in 'mtk_jpeg_dev'

Can you fix this in a v8?

BTW, you can also choose to combine the jpeg encoder series with this series into one single series.
I'll be merging them together anyway. That's up to you, though.

Regards,

	Hans

> 
> Patch 1 Adds jpeg decoder dt-bindings for mt8195
> 
> Patches 2 jpeg decoder builds three module for using Multi-HW,
> export some functions to make them visible by other modules.
> 
> Patch 3 use of_platform_populate to manage multi-hardware.
> 
> Patch 4 add jpeg decoding timeout function to judge hardware timeout.
> 
> Patch 5 add decoding work queue to deal with multi-hardware decoding
> at the same time.
> 
> Patch 6 add output picture reorder function to order images.
> 
> Patch 7 refactor jpegdec func interface for HW working.
> 
> Patch 8 add stop cmd function to deal with EOS operation.
> 
> ---
> This series patches dependent on:
> media_stage tree:
> [1]
> https://git.linuxtv.org/media_stage.git/commit/?id=b3627647f9ea7473d10fb08a95fd7c4133a17ca4
> 
> patch1 new jpegdec dt-bindings included files
> [2] MM IOMMU binding:
> https://patchwork.kernel.org/project/linux-mediatek/patch/20220217113453.13658-2-yong.wu@mediatek.com/
> 
> [3] MT8195 power domain:
> https://patchwork.kernel.org/project/linux-mediatek/list/?series=580579
> 
> Changes compared with v6:
> - some modifications for patch v6's review comments.
> 
> Changes compared with v5:
> - some modifications for patch v5's review comments.
> - fix yaml file check errors.
> 
> Changes compared with v4:
> - some modifications for patch v4's review comments.
> - fix Gstreamer test errors.
> 
> Changes compared with v3:
> - some modifications for patch v3's review comments.
> 
> Changes compared with v2:
> - add stop cmd function.
> - some modifications for patch v1's review comments.
> 
> Changes compared with v1:
> - new yaml file for mt8195 jpeg decoder.
> - some modifications for patch v1's review comments.
> 
> kyrie wu (8):
>   dt-bindings: mediatek: Add mediatek,mt8195-jpgdec compatible
>   media: mtk-jpegdec: export jpeg decoder functions
>   media: mtk-jpegdec: support jpegdec multi-hardware
>   media: mtk-jpegdec: add jpegdec timeout func interface
>   media: mtk-jpegdec: add jpeg decode worker interface
>   media: mtk-jpegdec: add output pic reorder interface
>   media: mtk-jpegdec: refactor jpegdec func interface
>   mtk-jpegdec: add stop cmd interface for jpgdec
> 
>  .../media/mediatek,mt8195-jpegdec.yaml        | 169 ++++++++++
>  drivers/media/platform/mediatek/jpeg/Makefile |   5 +-
>  .../platform/mediatek/jpeg/mtk_jpeg_core.c    | 233 ++++++++++++-
>  .../platform/mediatek/jpeg/mtk_jpeg_core.h    |  46 +++
>  .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  | 314 ++++++++++++++++--
>  .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.h  |   3 +-
>  .../platform/mediatek/jpeg/mtk_jpeg_dec_reg.h |   1 +
>  7 files changed, 739 insertions(+), 32 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml
>