linux-kernel - [PATCH v3 3/3] media: verisilicon: postproc: 4K support

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Message-ID: <20241121131904.261230-4-hugues.fruchet@foss.st.com>
Date: Thu, 21 Nov 2024 14:19:04 +0100
From: Hugues Fruchet <hugues.fruchet@...s.st.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
        Ezequiel Garcia
	<ezequiel@...guardiasur.com.ar>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Hugues Fruchet
	<hugues.fruchet@...s.st.com>,
        Sebastian Fricke
	<sebastian.fricke@...labora.com>,
        Ricardo Ribalda <ribalda@...omium.org>,
        Erling Ljunggren <hljunggr@...co.com>,
        Hans Verkuil <hverkuil@...all.nl>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sakari Ailus
	<sakari.ailus@...ux.intel.com>,
        Jacopo Mondi <jacopo.mondi@...asonboard.com>,
        Jean-Michel Hautbois <jeanmichel.hautbois@...asonboard.com>,
        Benjamin
 Gaignard <benjamin.gaignard@...labora.com>,
        <linux-media@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-rockchip@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v3 3/3] media: verisilicon: postproc: 4K support

Support input larger than 4096x2048 using extended input width/height
fields of swreg92.
This is needed to decode large WebP or JPEG pictures.

Signed-off-by: Hugues Fruchet <hugues.fruchet@...s.st.com>
---
 drivers/media/platform/verisilicon/hantro.h          | 2 ++
 drivers/media/platform/verisilicon/hantro_g1_regs.h  | 2 +-
 drivers/media/platform/verisilicon/hantro_postproc.c | 6 +++++-
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h
index 811260dc3c77..d1337f7742e4 100644
--- a/drivers/media/platform/verisilicon/hantro.h
+++ b/drivers/media/platform/verisilicon/hantro.h
@@ -321,6 +321,8 @@ struct hantro_postproc_regs {
 	struct hantro_reg output_fmt;
 	struct hantro_reg orig_width;
 	struct hantro_reg display_width;
+	struct hantro_reg input_width_ext;
+	struct hantro_reg input_height_ext;
 };
 
 struct hantro_vp9_decoded_buffer_info {
diff --git a/drivers/media/platform/verisilicon/hantro_g1_regs.h b/drivers/media/platform/verisilicon/hantro_g1_regs.h
index e7d4db788e57..f6e5bbeb1914 100644
--- a/drivers/media/platform/verisilicon/hantro_g1_regs.h
+++ b/drivers/media/platform/verisilicon/hantro_g1_regs.h
@@ -351,7 +351,7 @@
 #define     G1_REG_PP_CONTROL_OUT_WIDTH(v) (((v) << 4) & GENMASK(14, 4))
 #define G1_REG_PP_MASK1_ORIG_WIDTH	G1_SWREG(88)
 #define     G1_REG_PP_ORIG_WIDTH(v)	(((v) << 23) & GENMASK(31, 23))
-#define G1_REG_PP_DISPLAY_WIDTH		G1_SWREG(92)
+#define G1_REG_PP_DISPLAY_WIDTH_IN_EXT	G1_SWREG(92)
 #define G1_REG_PP_FUSE			G1_SWREG(99)
 
 #endif /* HANTRO_G1_REGS_H_ */
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index 232c93eea7ee..84c8e287470d 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -49,7 +49,9 @@ static const struct hantro_postproc_regs hantro_g1_postproc_regs = {
 	.input_fmt = {G1_REG_PP_CONTROL, 29, 0x7},
 	.output_fmt = {G1_REG_PP_CONTROL, 26, 0x7},
 	.orig_width = {G1_REG_PP_MASK1_ORIG_WIDTH, 23, 0x1ff},
-	.display_width = {G1_REG_PP_DISPLAY_WIDTH, 0, 0xfff},
+	.display_width = {G1_REG_PP_DISPLAY_WIDTH_IN_EXT, 0, 0xfff},
+	.input_width_ext = {G1_REG_PP_DISPLAY_WIDTH_IN_EXT, 26, 0x7},
+	.input_height_ext = {G1_REG_PP_DISPLAY_WIDTH_IN_EXT, 29, 0x7},
 };
 
 bool hantro_needs_postproc(const struct hantro_ctx *ctx,
@@ -103,6 +105,8 @@ static void hantro_postproc_g1_enable(struct hantro_ctx *ctx)
 	HANTRO_PP_REG_WRITE(vpu, output_height, ctx->dst_fmt.height);
 	HANTRO_PP_REG_WRITE(vpu, orig_width, MB_WIDTH(ctx->dst_fmt.width));
 	HANTRO_PP_REG_WRITE(vpu, display_width, ctx->dst_fmt.width);
+	HANTRO_PP_REG_WRITE(vpu, input_width_ext, MB_WIDTH(ctx->dst_fmt.width) >> 9);
+	HANTRO_PP_REG_WRITE(vpu, input_height_ext, MB_HEIGHT(ctx->dst_fmt.height >> 8));
 }
 
 static int down_scale_factor(struct hantro_ctx *ctx)
-- 
2.25.1