[PATCH v4 0/5] Add support for video hardware codec of STMicroelectronics STM32 SoC series

[PATCH v4 0/5] Add support for video hardware codec of STMicroelectronics STM32 SoC series

[Hugues Fruchet]

This patchset introduces support for VDEC video hardware decoder
and VENC video hardware encoder of STMicroelectronics STM32MP25
SoC series.

This initial support implements H264 decoding, VP8 decoding and
JPEG encoding.

This has been tested on STM32MP257F-EV1 evaluation board.

===========
= history =
===========
version 4:
   - Fix comments from Nicolas about dropping encoder raw steps

version 3:
   - Fix remarks from Krzysztof Kozlowski:
    - drop "items", we keep simple enum in such case
    - drop second example - it is the same as the first
   - Drop unused node labels as suggested by Conor Dooley
   - Revisit min/max resolutions as suggested by Nicolas Dufresne

version 2:
   - Fix remarks from Krzysztof Kozlowski on v1:
    - single video-codec binding for both VDEC/VENC
    - get rid of "-names"
    - use of generic node name "video-codec"

version 1:
  - Initial submission

Hugues Fruchet (5):
  dt-bindings: media: Document STM32MP25 VDEC & VENC video codecs
  media: hantro: add support for STM32MP25 VDEC
  media: hantro: add support for STM32MP25 VENC
  arm64: dts: st: add video decoder support to stm32mp255
  arm64: dts: st: add video encoder support to stm32mp255

 .../media/st,stm32mp25-video-codec.yaml       |  50 ++++++++
 arch/arm64/boot/dts/st/stm32mp251.dtsi        |  12 ++
 arch/arm64/boot/dts/st/stm32mp255.dtsi        |  17 +++
 drivers/media/platform/verisilicon/Kconfig    |  14 ++-
 drivers/media/platform/verisilicon/Makefile   |   4 +
 .../media/platform/verisilicon/hantro_drv.c   |   4 +
 .../media/platform/verisilicon/hantro_hw.h    |   2 +
 .../platform/verisilicon/stm32mp25_vdec_hw.c  |  92 ++++++++++++++
 .../platform/verisilicon/stm32mp25_venc_hw.c  | 115 ++++++++++++++++++
 9 files changed, 307 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml
 create mode 100644 drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
 create mode 100644 drivers/media/platform/verisilicon/stm32mp25_venc_hw.c

-- 
2.25.1

[PATCH v4 1/5] dt-bindings: media: Document STM32MP25 VDEC & VENC video codecs

[Hugues Fruchet]

Add STM32MP25 VDEC video decoder & VENC video encoder bindings.

Signed-off-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
---
 .../media/st,stm32mp25-video-codec.yaml       | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml

diff --git a/Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml b/Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml
new file mode 100644
index 000000000000..e167e3b1bec3
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/st,stm32mp25-video-codec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32MP25 VDEC video decoder & VENC video encoder
+
+maintainers:
+  - Hugues Fruchet <hugues.fruchet@foss.st.com>
+
+description:
+  The STMicroelectronics STM32MP25 SOCs embeds a VDEC video hardware
+  decoder peripheral based on Verisilicon VC8000NanoD IP (former Hantro G1)
+  and a VENC video hardware encoder peripheral based on Verisilicon
+  VC8000NanoE IP (former Hantro H1).
+
+properties:
+  compatible:
+    enum:
+      - st,stm32mp25-vdec
+      - st,stm32mp25-venc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    video-codec@580d0000 {
+        compatible = "st,stm32mp25-vdec";
+        reg = <0x580d0000 0x3c8>;
+        interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&ck_icn_p_vdec>;
+    };
-- 
2.25.1

[PATCH v4 2/5] media: hantro: add support for STM32MP25 VDEC

[Hugues Fruchet]

Add support for STM32MP25 VDEC video hardware decoder.
Support of H264/VP8 decoding.
No post-processor support.
VDEC has its own reset/clock/irq.

Signed-off-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
---
 drivers/media/platform/verisilicon/Kconfig    | 14 ++-
 drivers/media/platform/verisilicon/Makefile   |  3 +
 .../media/platform/verisilicon/hantro_drv.c   |  3 +
 .../media/platform/verisilicon/hantro_hw.h    |  1 +
 .../platform/verisilicon/stm32mp25_vdec_hw.c  | 92 +++++++++++++++++++
 5 files changed, 110 insertions(+), 3 deletions(-)
 create mode 100644 drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c

diff --git a/drivers/media/platform/verisilicon/Kconfig b/drivers/media/platform/verisilicon/Kconfig
index e65b836b9d78..7642ff9cf96c 100644
--- a/drivers/media/platform/verisilicon/Kconfig
+++ b/drivers/media/platform/verisilicon/Kconfig
@@ -4,7 +4,7 @@ comment "Verisilicon media platform drivers"
 
 config VIDEO_HANTRO
 	tristate "Hantro VPU driver"
-	depends on ARCH_MXC || ARCH_ROCKCHIP || ARCH_AT91 || ARCH_SUNXI || COMPILE_TEST
+	depends on ARCH_MXC || ARCH_ROCKCHIP || ARCH_AT91 || ARCH_SUNXI || ARCH_STM32 || COMPILE_TEST
 	depends on V4L_MEM2MEM_DRIVERS
 	depends on VIDEO_DEV
 	select MEDIA_CONTROLLER
@@ -16,8 +16,8 @@ config VIDEO_HANTRO
 	select V4L2_VP9
 	help
 	  Support for the Hantro IP based Video Processing Units present on
-	  Rockchip and NXP i.MX8M SoCs, which accelerate video and image
-	  encoding and decoding.
+	  Rockchip, NXP i.MX8M and STM32MP25 SoCs, which accelerate video
+	  and image encoding and decoding.
 	  To compile this driver as a module, choose M here: the module
 	  will be called hantro-vpu.
 
@@ -52,3 +52,11 @@ config VIDEO_HANTRO_SUNXI
 	default y
 	help
 	  Enable support for H6 SoC.
+
+config VIDEO_HANTRO_STM32MP25
+	bool "Hantro STM32MP25 support"
+	depends on VIDEO_HANTRO
+	depends on ARCH_STM32 || COMPILE_TEST
+	default y
+	help
+	  Enable support for STM32MP25 SoCs.
diff --git a/drivers/media/platform/verisilicon/Makefile b/drivers/media/platform/verisilicon/Makefile
index 6ad2ef885920..5854e0f0dd32 100644
--- a/drivers/media/platform/verisilicon/Makefile
+++ b/drivers/media/platform/verisilicon/Makefile
@@ -39,3 +39,6 @@ hantro-vpu-$(CONFIG_VIDEO_HANTRO_ROCKCHIP) += \
 
 hantro-vpu-$(CONFIG_VIDEO_HANTRO_SUNXI) += \
 		sunxi_vpu_hw.o
+
+hantro-vpu-$(CONFIG_VIDEO_HANTRO_STM32MP25) += \
+		stm32mp25_vdec_hw.o
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index a9fa05ac56a9..2db27c333924 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -733,6 +733,9 @@ static const struct of_device_id of_hantro_match[] = {
 #endif
 #ifdef CONFIG_VIDEO_HANTRO_SUNXI
 	{ .compatible = "allwinner,sun50i-h6-vpu-g2", .data = &sunxi_vpu_variant, },
+#endif
+#ifdef CONFIG_VIDEO_HANTRO_STM32MP25
+	{ .compatible = "st,stm32mp25-vdec", .data = &stm32mp25_vdec_variant, },
 #endif
 	{ /* sentinel */ }
 };
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index 7f33f7b07ce4..b7eccc1a96fc 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -406,6 +406,7 @@ extern const struct hantro_variant rk3568_vpu_variant;
 extern const struct hantro_variant rk3588_vpu981_variant;
 extern const struct hantro_variant sama5d4_vdec_variant;
 extern const struct hantro_variant sunxi_vpu_variant;
+extern const struct hantro_variant stm32mp25_vdec_variant;
 
 extern const struct hantro_postproc_ops hantro_g1_postproc_ops;
 extern const struct hantro_postproc_ops hantro_g2_postproc_ops;
diff --git a/drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c b/drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
new file mode 100644
index 000000000000..aa8b0f751390
--- /dev/null
+++ b/drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * STM32MP25 VDEC video decoder driver
+ *
+ * Copyright (C) STMicroelectronics SA 2022
+ * Authors: Hugues Fruchet <hugues.fruchet@foss.st.com>
+ *          for STMicroelectronics.
+ *
+ */
+
+#include "hantro.h"
+
+/*
+ * Supported formats.
+ */
+
+static const struct hantro_fmt stm32mp25_vdec_fmts[] = {
+	{
+		.fourcc = V4L2_PIX_FMT_NV12,
+		.codec_mode = HANTRO_MODE_NONE,
+		.frmsize = {
+			.min_width = FMT_MIN_WIDTH,
+			.max_width = FMT_FHD_WIDTH,
+			.step_width = MB_DIM,
+			.min_height = FMT_MIN_HEIGHT,
+			.max_height = FMT_FHD_HEIGHT,
+			.step_height = MB_DIM,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_VP8_FRAME,
+		.codec_mode = HANTRO_MODE_VP8_DEC,
+		.max_depth = 2,
+		.frmsize = {
+			.min_width = FMT_MIN_WIDTH,
+			.max_width = FMT_FHD_WIDTH,
+			.step_width = MB_DIM,
+			.min_height = FMT_MIN_HEIGHT,
+			.max_height = FMT_FHD_HEIGHT,
+			.step_height = MB_DIM,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_H264_SLICE,
+		.codec_mode = HANTRO_MODE_H264_DEC,
+		.max_depth = 2,
+		.frmsize = {
+			.min_width = FMT_MIN_WIDTH,
+			.max_width = FMT_FHD_WIDTH,
+			.step_width = MB_DIM,
+			.min_height = FMT_MIN_HEIGHT,
+			.max_height = FMT_FHD_HEIGHT,
+			.step_height = MB_DIM,
+		},
+	},
+};
+
+/*
+ * Supported codec ops.
+ */
+
+static const struct hantro_codec_ops stm32mp25_vdec_codec_ops[] = {
+	[HANTRO_MODE_VP8_DEC] = {
+		.run = hantro_g1_vp8_dec_run,
+		.reset = hantro_g1_reset,
+		.init = hantro_vp8_dec_init,
+		.exit = hantro_vp8_dec_exit,
+	},
+	[HANTRO_MODE_H264_DEC] = {
+		.run = hantro_g1_h264_dec_run,
+		.reset = hantro_g1_reset,
+		.init = hantro_h264_dec_init,
+		.exit = hantro_h264_dec_exit,
+	},
+};
+
+static const struct hantro_irq stm32mp25_irqs[] = {
+	{ "vdec", hantro_g1_irq },
+};
+
+static const char * const stm32mp25_clk_names[] = { "vdec-clk" };
+
+const struct hantro_variant stm32mp25_vdec_variant = {
+	.dec_fmts = stm32mp25_vdec_fmts,
+	.num_dec_fmts = ARRAY_SIZE(stm32mp25_vdec_fmts),
+	.codec = HANTRO_VP8_DECODER | HANTRO_H264_DECODER,
+	.codec_ops = stm32mp25_vdec_codec_ops,
+	.irqs = stm32mp25_irqs,
+	.num_irqs = ARRAY_SIZE(stm32mp25_irqs),
+	.clk_names = stm32mp25_clk_names,
+	.num_clocks = ARRAY_SIZE(stm32mp25_clk_names),
+};
-- 
2.25.1

[PATCH v4 3/5] media: hantro: add support for STM32MP25 VENC

[Hugues Fruchet]

Add support for STM32MP25 VENC video hardware encoder.
Support of JPEG encoding.
VENC has its own reset/clock/irq.

Signed-off-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
---
 drivers/media/platform/verisilicon/Makefile   |   3 +-
 .../media/platform/verisilicon/hantro_drv.c   |   1 +
 .../media/platform/verisilicon/hantro_hw.h    |   1 +
 .../platform/verisilicon/stm32mp25_venc_hw.c  | 115 ++++++++++++++++++
 4 files changed, 119 insertions(+), 1 deletion(-)
 create mode 100644 drivers/media/platform/verisilicon/stm32mp25_venc_hw.c

diff --git a/drivers/media/platform/verisilicon/Makefile b/drivers/media/platform/verisilicon/Makefile
index 5854e0f0dd32..3bf43fdbedc1 100644
--- a/drivers/media/platform/verisilicon/Makefile
+++ b/drivers/media/platform/verisilicon/Makefile
@@ -41,4 +41,5 @@ hantro-vpu-$(CONFIG_VIDEO_HANTRO_SUNXI) += \
 		sunxi_vpu_hw.o
 
 hantro-vpu-$(CONFIG_VIDEO_HANTRO_STM32MP25) += \
-		stm32mp25_vdec_hw.o
+		stm32mp25_vdec_hw.o \
+		stm32mp25_venc_hw.o
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index 2db27c333924..4d97a8ac03de 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -736,6 +736,7 @@ static const struct of_device_id of_hantro_match[] = {
 #endif
 #ifdef CONFIG_VIDEO_HANTRO_STM32MP25
 	{ .compatible = "st,stm32mp25-vdec", .data = &stm32mp25_vdec_variant, },
+	{ .compatible = "st,stm32mp25-venc", .data = &stm32mp25_venc_variant, },
 #endif
 	{ /* sentinel */ }
 };
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index b7eccc1a96fc..70c72e9d11d5 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -407,6 +407,7 @@ extern const struct hantro_variant rk3588_vpu981_variant;
 extern const struct hantro_variant sama5d4_vdec_variant;
 extern const struct hantro_variant sunxi_vpu_variant;
 extern const struct hantro_variant stm32mp25_vdec_variant;
+extern const struct hantro_variant stm32mp25_venc_variant;
 
 extern const struct hantro_postproc_ops hantro_g1_postproc_ops;
 extern const struct hantro_postproc_ops hantro_g2_postproc_ops;
diff --git a/drivers/media/platform/verisilicon/stm32mp25_venc_hw.c b/drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
new file mode 100644
index 000000000000..0ff0f073b922
--- /dev/null
+++ b/drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * STM32MP25 VENC video encoder driver
+ *
+ * Copyright (C) STMicroelectronics SA 2022
+ * Authors: Hugues Fruchet <hugues.fruchet@foss.st.com>
+ *          for STMicroelectronics.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/reset.h>
+
+#include "hantro.h"
+#include "hantro_jpeg.h"
+#include "hantro_h1_regs.h"
+
+/*
+ * Supported formats.
+ */
+
+static const struct hantro_fmt stm32mp25_venc_fmts[] = {
+	{
+		.fourcc = V4L2_PIX_FMT_YUV420M,
+		.codec_mode = HANTRO_MODE_NONE,
+		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_YUV420P,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV12M,
+		.codec_mode = HANTRO_MODE_NONE,
+		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_YUV420SP,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_YUYV,
+		.codec_mode = HANTRO_MODE_NONE,
+		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_YUYV422,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_UYVY,
+		.codec_mode = HANTRO_MODE_NONE,
+		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_UYVY422,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_JPEG,
+		.codec_mode = HANTRO_MODE_JPEG_ENC,
+		.max_depth = 2,
+		.header_size = JPEG_HEADER_SIZE,
+		.frmsize = {
+			.min_width = 96,
+			.max_width = FMT_4K_WIDTH,
+			.step_width = MB_DIM,
+			.min_height = 96,
+			.max_height = FMT_4K_HEIGHT,
+			.step_height = MB_DIM,
+		},
+	},
+};
+
+static irqreturn_t stm32mp25_venc_irq(int irq, void *dev_id)
+{
+	struct hantro_dev *vpu = dev_id;
+	enum vb2_buffer_state state;
+	u32 status;
+
+	status = vepu_read(vpu, H1_REG_INTERRUPT);
+	state = (status & H1_REG_INTERRUPT_FRAME_RDY) ?
+		VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
+
+	vepu_write(vpu, H1_REG_INTERRUPT_BIT, H1_REG_INTERRUPT);
+
+	hantro_irq_done(vpu, state);
+
+	return IRQ_HANDLED;
+}
+
+static void stm32mp25_venc_reset(struct hantro_ctx *ctx)
+{
+}
+
+/*
+ * Supported codec ops.
+ */
+
+static const struct hantro_codec_ops stm32mp25_venc_codec_ops[] = {
+	[HANTRO_MODE_JPEG_ENC] = {
+		.run = hantro_h1_jpeg_enc_run,
+		.reset = stm32mp25_venc_reset,
+		.done = hantro_h1_jpeg_enc_done,
+	},
+};
+
+/*
+ * Variants.
+ */
+
+static const struct hantro_irq stm32mp25_venc_irqs[] = {
+	{ "venc", stm32mp25_venc_irq },
+};
+
+static const char * const stm32mp25_venc_clk_names[] = {
+	"venc-clk"
+};
+
+const struct hantro_variant stm32mp25_venc_variant = {
+	.enc_fmts = stm32mp25_venc_fmts,
+	.num_enc_fmts = ARRAY_SIZE(stm32mp25_venc_fmts),
+	.codec = HANTRO_JPEG_ENCODER,
+	.codec_ops = stm32mp25_venc_codec_ops,
+	.irqs = stm32mp25_venc_irqs,
+	.num_irqs = ARRAY_SIZE(stm32mp25_venc_irqs),
+	.clk_names = stm32mp25_venc_clk_names,
+	.num_clocks = ARRAY_SIZE(stm32mp25_venc_clk_names)
+};
+
-- 
2.25.1

[PATCH v4 4/5] arm64: dts: st: add video decoder support to stm32mp255

[Hugues Fruchet]

Add VDEC hardware video decoder support to STM32MP255.

Signed-off-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi |  6 ++++++
 arch/arm64/boot/dts/st/stm32mp255.dtsi | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 96859d098ef8..8fc7e9199499 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -52,6 +52,12 @@ ck_icn_ls_mcu: ck-icn-ls-mcu {
 			compatible = "fixed-clock";
 			clock-frequency = <200000000>;
 		};
+
+		ck_icn_p_vdec: ck-icn-p-vdec {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <200000000>;
+		};
 	};
 
 	firmware {
diff --git a/arch/arm64/boot/dts/st/stm32mp255.dtsi b/arch/arm64/boot/dts/st/stm32mp255.dtsi
index e6fa596211f5..aea5096dac3c 100644
--- a/arch/arm64/boot/dts/st/stm32mp255.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp255.dtsi
@@ -6,4 +6,14 @@
 #include "stm32mp253.dtsi"
 
 / {
+	soc@0 {
+		rifsc: rifsc-bus@42080000 {
+			vdec: vdec@480d0000 {
+				compatible = "st,stm32mp25-vdec";
+				reg = <0x480d0000 0x3c8>;
+				interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&ck_icn_p_vdec>;
+			};
+		};
+	};
 };
-- 
2.25.1

[PATCH v4 5/5] arm64: dts: st: add video encoder support to stm32mp255

[Hugues Fruchet]

Add VENC hardware video encoder support to STM32MP255.

Signed-off-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi | 6 ++++++
 arch/arm64/boot/dts/st/stm32mp255.dtsi | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 8fc7e9199499..5dd4f3580a60 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -58,6 +58,12 @@ ck_icn_p_vdec: ck-icn-p-vdec {
 			compatible = "fixed-clock";
 			clock-frequency = <200000000>;
 		};
+
+		ck_icn_p_venc: ck-icn-p-venc {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <200000000>;
+		};
 	};
 
 	firmware {
diff --git a/arch/arm64/boot/dts/st/stm32mp255.dtsi b/arch/arm64/boot/dts/st/stm32mp255.dtsi
index aea5096dac3c..17f197c5b22b 100644
--- a/arch/arm64/boot/dts/st/stm32mp255.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp255.dtsi
@@ -14,6 +14,13 @@ vdec: vdec@480d0000 {
 				interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&ck_icn_p_vdec>;
 			};
+
+			venc: venc@480e0000 {
+				compatible = "st,stm32mp25-venc";
+				reg = <0x480e0000 0x800>;
+				interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&ck_icn_ls_mcu>;
+			};
 		};
 	};
 };
-- 
2.25.1

Re: [PATCH v4 0/5] Add support for video hardware codec of STMicroelectronics STM32 SoC series

[Nicolas Dufresne]

Le mercredi 20 décembre 2023 à 16:27 +0100, Hugues Fruchet a écrit :
> This patchset introduces support for VDEC video hardware decoder
> and VENC video hardware encoder of STMicroelectronics STM32MP25
> SoC series.
> 
> This initial support implements H264 decoding, VP8 decoding and
> JPEG encoding.
> 
> This has been tested on STM32MP257F-EV1 evaluation board.
> 
> ===========
> = history =
> ===========
> version 4:
>    - Fix comments from Nicolas about dropping encoder raw steps

As discussed in chat, The 4K resolution didn't work correctly, so all the
resolution have been set back to 1080p.

> 
> version 3:
>    - Fix remarks from Krzysztof Kozlowski:
>     - drop "items", we keep simple enum in such case
>     - drop second example - it is the same as the first
>    - Drop unused node labels as suggested by Conor Dooley
>    - Revisit min/max resolutions as suggested by Nicolas Dufresne
> 
> version 2:
>    - Fix remarks from Krzysztof Kozlowski on v1:
>     - single video-codec binding for both VDEC/VENC
>     - get rid of "-names"
>     - use of generic node name "video-codec"
> 
> version 1:
>   - Initial submission
> 
> Hugues Fruchet (5):
>   dt-bindings: media: Document STM32MP25 VDEC & VENC video codecs
>   media: hantro: add support for STM32MP25 VDEC
>   media: hantro: add support for STM32MP25 VENC
>   arm64: dts: st: add video decoder support to stm32mp255
>   arm64: dts: st: add video encoder support to stm32mp255
> 
>  .../media/st,stm32mp25-video-codec.yaml       |  50 ++++++++
>  arch/arm64/boot/dts/st/stm32mp251.dtsi        |  12 ++
>  arch/arm64/boot/dts/st/stm32mp255.dtsi        |  17 +++
>  drivers/media/platform/verisilicon/Kconfig    |  14 ++-
>  drivers/media/platform/verisilicon/Makefile   |   4 +
>  .../media/platform/verisilicon/hantro_drv.c   |   4 +
>  .../media/platform/verisilicon/hantro_hw.h    |   2 +
>  .../platform/verisilicon/stm32mp25_vdec_hw.c  |  92 ++++++++++++++
>  .../platform/verisilicon/stm32mp25_venc_hw.c  | 115 ++++++++++++++++++
>  9 files changed, 307 insertions(+), 3 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml
>  create mode 100644 drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
>  create mode 100644 drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
> 

Re: [PATCH v4 2/5] media: hantro: add support for STM32MP25 VDEC

[Nicolas Dufresne]

Le mercredi 20 décembre 2023 à 16:27 +0100, Hugues Fruchet a écrit :
> Add support for STM32MP25 VDEC video hardware decoder.
> Support of H264/VP8 decoding.
> No post-processor support.
> VDEC has its own reset/clock/irq.

I'd suggest adding:

  The resolution is currently limited to full HD as per test results.
  Higher resolutions results in visual distortion.

With similar minor addition (please suggest something you are confortable with):

Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>

> 
> Signed-off-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
> ---
>  drivers/media/platform/verisilicon/Kconfig    | 14 ++-
>  drivers/media/platform/verisilicon/Makefile   |  3 +
>  .../media/platform/verisilicon/hantro_drv.c   |  3 +
>  .../media/platform/verisilicon/hantro_hw.h    |  1 +
>  .../platform/verisilicon/stm32mp25_vdec_hw.c  | 92 +++++++++++++++++++
>  5 files changed, 110 insertions(+), 3 deletions(-)
>  create mode 100644 drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
> 
> diff --git a/drivers/media/platform/verisilicon/Kconfig b/drivers/media/platform/verisilicon/Kconfig
> index e65b836b9d78..7642ff9cf96c 100644
> --- a/drivers/media/platform/verisilicon/Kconfig
> +++ b/drivers/media/platform/verisilicon/Kconfig
> @@ -4,7 +4,7 @@ comment "Verisilicon media platform drivers"
>  
>  config VIDEO_HANTRO
>  	tristate "Hantro VPU driver"
> -	depends on ARCH_MXC || ARCH_ROCKCHIP || ARCH_AT91 || ARCH_SUNXI || COMPILE_TEST
> +	depends on ARCH_MXC || ARCH_ROCKCHIP || ARCH_AT91 || ARCH_SUNXI || ARCH_STM32 || COMPILE_TEST
>  	depends on V4L_MEM2MEM_DRIVERS
>  	depends on VIDEO_DEV
>  	select MEDIA_CONTROLLER
> @@ -16,8 +16,8 @@ config VIDEO_HANTRO
>  	select V4L2_VP9
>  	help
>  	  Support for the Hantro IP based Video Processing Units present on
> -	  Rockchip and NXP i.MX8M SoCs, which accelerate video and image
> -	  encoding and decoding.
> +	  Rockchip, NXP i.MX8M and STM32MP25 SoCs, which accelerate video
> +	  and image encoding and decoding.
>  	  To compile this driver as a module, choose M here: the module
>  	  will be called hantro-vpu.
>  
> @@ -52,3 +52,11 @@ config VIDEO_HANTRO_SUNXI
>  	default y
>  	help
>  	  Enable support for H6 SoC.
> +
> +config VIDEO_HANTRO_STM32MP25
> +	bool "Hantro STM32MP25 support"
> +	depends on VIDEO_HANTRO
> +	depends on ARCH_STM32 || COMPILE_TEST
> +	default y
> +	help
> +	  Enable support for STM32MP25 SoCs.
> diff --git a/drivers/media/platform/verisilicon/Makefile b/drivers/media/platform/verisilicon/Makefile
> index 6ad2ef885920..5854e0f0dd32 100644
> --- a/drivers/media/platform/verisilicon/Makefile
> +++ b/drivers/media/platform/verisilicon/Makefile
> @@ -39,3 +39,6 @@ hantro-vpu-$(CONFIG_VIDEO_HANTRO_ROCKCHIP) += \
>  
>  hantro-vpu-$(CONFIG_VIDEO_HANTRO_SUNXI) += \
>  		sunxi_vpu_hw.o
> +
> +hantro-vpu-$(CONFIG_VIDEO_HANTRO_STM32MP25) += \
> +		stm32mp25_vdec_hw.o
> diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
> index a9fa05ac56a9..2db27c333924 100644
> --- a/drivers/media/platform/verisilicon/hantro_drv.c
> +++ b/drivers/media/platform/verisilicon/hantro_drv.c
> @@ -733,6 +733,9 @@ static const struct of_device_id of_hantro_match[] = {
>  #endif
>  #ifdef CONFIG_VIDEO_HANTRO_SUNXI
>  	{ .compatible = "allwinner,sun50i-h6-vpu-g2", .data = &sunxi_vpu_variant, },
> +#endif
> +#ifdef CONFIG_VIDEO_HANTRO_STM32MP25
> +	{ .compatible = "st,stm32mp25-vdec", .data = &stm32mp25_vdec_variant, },
>  #endif
>  	{ /* sentinel */ }
>  };
> diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
> index 7f33f7b07ce4..b7eccc1a96fc 100644
> --- a/drivers/media/platform/verisilicon/hantro_hw.h
> +++ b/drivers/media/platform/verisilicon/hantro_hw.h
> @@ -406,6 +406,7 @@ extern const struct hantro_variant rk3568_vpu_variant;
>  extern const struct hantro_variant rk3588_vpu981_variant;
>  extern const struct hantro_variant sama5d4_vdec_variant;
>  extern const struct hantro_variant sunxi_vpu_variant;
> +extern const struct hantro_variant stm32mp25_vdec_variant;
>  
>  extern const struct hantro_postproc_ops hantro_g1_postproc_ops;
>  extern const struct hantro_postproc_ops hantro_g2_postproc_ops;
> diff --git a/drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c b/drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
> new file mode 100644
> index 000000000000..aa8b0f751390
> --- /dev/null
> +++ b/drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
> @@ -0,0 +1,92 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * STM32MP25 VDEC video decoder driver
> + *
> + * Copyright (C) STMicroelectronics SA 2022
> + * Authors: Hugues Fruchet <hugues.fruchet@foss.st.com>
> + *          for STMicroelectronics.
> + *
> + */
> +
> +#include "hantro.h"
> +
> +/*
> + * Supported formats.
> + */
> +
> +static const struct hantro_fmt stm32mp25_vdec_fmts[] = {
> +	{
> +		.fourcc = V4L2_PIX_FMT_NV12,
> +		.codec_mode = HANTRO_MODE_NONE,
> +		.frmsize = {
> +			.min_width = FMT_MIN_WIDTH,
> +			.max_width = FMT_FHD_WIDTH,
> +			.step_width = MB_DIM,
> +			.min_height = FMT_MIN_HEIGHT,
> +			.max_height = FMT_FHD_HEIGHT,
> +			.step_height = MB_DIM,
> +		},
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_VP8_FRAME,
> +		.codec_mode = HANTRO_MODE_VP8_DEC,
> +		.max_depth = 2,
> +		.frmsize = {
> +			.min_width = FMT_MIN_WIDTH,
> +			.max_width = FMT_FHD_WIDTH,
> +			.step_width = MB_DIM,
> +			.min_height = FMT_MIN_HEIGHT,
> +			.max_height = FMT_FHD_HEIGHT,
> +			.step_height = MB_DIM,
> +		},
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_H264_SLICE,
> +		.codec_mode = HANTRO_MODE_H264_DEC,
> +		.max_depth = 2,
> +		.frmsize = {
> +			.min_width = FMT_MIN_WIDTH,
> +			.max_width = FMT_FHD_WIDTH,
> +			.step_width = MB_DIM,
> +			.min_height = FMT_MIN_HEIGHT,
> +			.max_height = FMT_FHD_HEIGHT,
> +			.step_height = MB_DIM,
> +		},
> +	},
> +};
> +
> +/*
> + * Supported codec ops.
> + */
> +
> +static const struct hantro_codec_ops stm32mp25_vdec_codec_ops[] = {
> +	[HANTRO_MODE_VP8_DEC] = {
> +		.run = hantro_g1_vp8_dec_run,
> +		.reset = hantro_g1_reset,
> +		.init = hantro_vp8_dec_init,
> +		.exit = hantro_vp8_dec_exit,
> +	},
> +	[HANTRO_MODE_H264_DEC] = {
> +		.run = hantro_g1_h264_dec_run,
> +		.reset = hantro_g1_reset,
> +		.init = hantro_h264_dec_init,
> +		.exit = hantro_h264_dec_exit,
> +	},
> +};
> +
> +static const struct hantro_irq stm32mp25_irqs[] = {
> +	{ "vdec", hantro_g1_irq },
> +};
> +
> +static const char * const stm32mp25_clk_names[] = { "vdec-clk" };
> +
> +const struct hantro_variant stm32mp25_vdec_variant = {
> +	.dec_fmts = stm32mp25_vdec_fmts,
> +	.num_dec_fmts = ARRAY_SIZE(stm32mp25_vdec_fmts),
> +	.codec = HANTRO_VP8_DECODER | HANTRO_H264_DECODER,
> +	.codec_ops = stm32mp25_vdec_codec_ops,
> +	.irqs = stm32mp25_irqs,
> +	.num_irqs = ARRAY_SIZE(stm32mp25_irqs),
> +	.clk_names = stm32mp25_clk_names,
> +	.num_clocks = ARRAY_SIZE(stm32mp25_clk_names),
> +};

Re: [PATCH v4 3/5] media: hantro: add support for STM32MP25 VENC

[Nicolas Dufresne]

Le mercredi 20 décembre 2023 à 16:27 +0100, Hugues Fruchet a écrit :
> Add support for STM32MP25 VENC video hardware encoder.
> Support of JPEG encoding.
> VENC has its own reset/clock/irq.
> 
> Signed-off-by: Hugues Fruchet <hugues.fruchet@foss.st.com>

Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>

> ---
>  drivers/media/platform/verisilicon/Makefile   |   3 +-
>  .../media/platform/verisilicon/hantro_drv.c   |   1 +
>  .../media/platform/verisilicon/hantro_hw.h    |   1 +
>  .../platform/verisilicon/stm32mp25_venc_hw.c  | 115 ++++++++++++++++++
>  4 files changed, 119 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
> 
> diff --git a/drivers/media/platform/verisilicon/Makefile b/drivers/media/platform/verisilicon/Makefile
> index 5854e0f0dd32..3bf43fdbedc1 100644
> --- a/drivers/media/platform/verisilicon/Makefile
> +++ b/drivers/media/platform/verisilicon/Makefile
> @@ -41,4 +41,5 @@ hantro-vpu-$(CONFIG_VIDEO_HANTRO_SUNXI) += \
>  		sunxi_vpu_hw.o
>  
>  hantro-vpu-$(CONFIG_VIDEO_HANTRO_STM32MP25) += \
> -		stm32mp25_vdec_hw.o
> +		stm32mp25_vdec_hw.o \
> +		stm32mp25_venc_hw.o
> diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
> index 2db27c333924..4d97a8ac03de 100644
> --- a/drivers/media/platform/verisilicon/hantro_drv.c
> +++ b/drivers/media/platform/verisilicon/hantro_drv.c
> @@ -736,6 +736,7 @@ static const struct of_device_id of_hantro_match[] = {
>  #endif
>  #ifdef CONFIG_VIDEO_HANTRO_STM32MP25
>  	{ .compatible = "st,stm32mp25-vdec", .data = &stm32mp25_vdec_variant, },
> +	{ .compatible = "st,stm32mp25-venc", .data = &stm32mp25_venc_variant, },
>  #endif
>  	{ /* sentinel */ }
>  };
> diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
> index b7eccc1a96fc..70c72e9d11d5 100644
> --- a/drivers/media/platform/verisilicon/hantro_hw.h
> +++ b/drivers/media/platform/verisilicon/hantro_hw.h
> @@ -407,6 +407,7 @@ extern const struct hantro_variant rk3588_vpu981_variant;
>  extern const struct hantro_variant sama5d4_vdec_variant;
>  extern const struct hantro_variant sunxi_vpu_variant;
>  extern const struct hantro_variant stm32mp25_vdec_variant;
> +extern const struct hantro_variant stm32mp25_venc_variant;
>  
>  extern const struct hantro_postproc_ops hantro_g1_postproc_ops;
>  extern const struct hantro_postproc_ops hantro_g2_postproc_ops;
> diff --git a/drivers/media/platform/verisilicon/stm32mp25_venc_hw.c b/drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
> new file mode 100644
> index 000000000000..0ff0f073b922
> --- /dev/null
> +++ b/drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
> @@ -0,0 +1,115 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * STM32MP25 VENC video encoder driver
> + *
> + * Copyright (C) STMicroelectronics SA 2022
> + * Authors: Hugues Fruchet <hugues.fruchet@foss.st.com>
> + *          for STMicroelectronics.
> + *
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/delay.h>
> +#include <linux/reset.h>
> +
> +#include "hantro.h"
> +#include "hantro_jpeg.h"
> +#include "hantro_h1_regs.h"
> +
> +/*
> + * Supported formats.
> + */
> +
> +static const struct hantro_fmt stm32mp25_venc_fmts[] = {
> +	{
> +		.fourcc = V4L2_PIX_FMT_YUV420M,
> +		.codec_mode = HANTRO_MODE_NONE,
> +		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_YUV420P,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_NV12M,
> +		.codec_mode = HANTRO_MODE_NONE,
> +		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_YUV420SP,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_YUYV,
> +		.codec_mode = HANTRO_MODE_NONE,
> +		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_YUYV422,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_UYVY,
> +		.codec_mode = HANTRO_MODE_NONE,
> +		.enc_fmt = ROCKCHIP_VPU_ENC_FMT_UYVY422,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_JPEG,
> +		.codec_mode = HANTRO_MODE_JPEG_ENC,
> +		.max_depth = 2,
> +		.header_size = JPEG_HEADER_SIZE,
> +		.frmsize = {
> +			.min_width = 96,
> +			.max_width = FMT_4K_WIDTH,
> +			.step_width = MB_DIM,
> +			.min_height = 96,
> +			.max_height = FMT_4K_HEIGHT,
> +			.step_height = MB_DIM,
> +		},
> +	},
> +};
> +
> +static irqreturn_t stm32mp25_venc_irq(int irq, void *dev_id)
> +{
> +	struct hantro_dev *vpu = dev_id;
> +	enum vb2_buffer_state state;
> +	u32 status;
> +
> +	status = vepu_read(vpu, H1_REG_INTERRUPT);
> +	state = (status & H1_REG_INTERRUPT_FRAME_RDY) ?
> +		VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
> +
> +	vepu_write(vpu, H1_REG_INTERRUPT_BIT, H1_REG_INTERRUPT);
> +
> +	hantro_irq_done(vpu, state);
> +
> +	return IRQ_HANDLED;
> +}
> +
> +static void stm32mp25_venc_reset(struct hantro_ctx *ctx)
> +{
> +}
> +
> +/*
> + * Supported codec ops.
> + */
> +
> +static const struct hantro_codec_ops stm32mp25_venc_codec_ops[] = {
> +	[HANTRO_MODE_JPEG_ENC] = {
> +		.run = hantro_h1_jpeg_enc_run,
> +		.reset = stm32mp25_venc_reset,
> +		.done = hantro_h1_jpeg_enc_done,
> +	},
> +};
> +
> +/*
> + * Variants.
> + */
> +
> +static const struct hantro_irq stm32mp25_venc_irqs[] = {
> +	{ "venc", stm32mp25_venc_irq },
> +};
> +
> +static const char * const stm32mp25_venc_clk_names[] = {
> +	"venc-clk"
> +};
> +
> +const struct hantro_variant stm32mp25_venc_variant = {
> +	.enc_fmts = stm32mp25_venc_fmts,
> +	.num_enc_fmts = ARRAY_SIZE(stm32mp25_venc_fmts),
> +	.codec = HANTRO_JPEG_ENCODER,
> +	.codec_ops = stm32mp25_venc_codec_ops,
> +	.irqs = stm32mp25_venc_irqs,
> +	.num_irqs = ARRAY_SIZE(stm32mp25_venc_irqs),
> +	.clk_names = stm32mp25_venc_clk_names,
> +	.num_clocks = ARRAY_SIZE(stm32mp25_venc_clk_names)
> +};
> +