linux-kernel - [PATCH v7 1/3] drm/mipi-dsi: add mipi_dsi_compression_mode

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Message-Id: <20241009-starqltechn_integration_upstream-v7-1-9967bd15c7c5@gmail.com>
Date: Wed, 09 Oct 2024 18:09:06 +0300
From: Dzmitry Sankouski <dsankouski@...il.com>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <quic_jesszhan@...cinc.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Dzmitry Sankouski <dsankouski@...il.com>
Subject: [PATCH v7 1/3] drm/mipi-dsi: add mipi_dsi_compression_mode_multi

mipi_dsi_compression_mode_multi can help with
error handling.

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
Signed-off-by: Dzmitry Sankouski <dsankouski@...il.com>
---
Changes in v7:
- fix kernel doc
---
 drivers/gpu/drm/drm_mipi_dsi.c | 16 ++++++++++++++++
 include/drm/drm_mipi_dsi.h     |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 2bc3973d35a1..5e5c5f84daac 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -1520,6 +1520,22 @@ void mipi_dsi_compression_mode_ext_multi(struct mipi_dsi_multi_context *ctx,
 }
 EXPORT_SYMBOL(mipi_dsi_compression_mode_ext_multi);
 
+/**
+ * mipi_dsi_compression_mode_multi() - enable/disable DSC on the peripheral
+ * @ctx: Context for multiple DSI transactions
+ * @enable: Whether to enable or disable the DSC
+ *
+ * Enable or disable Display Stream Compression on the peripheral using the
+ * default Picture Parameter Set and VESA DSC 1.1 algorithm.
+ */
+void mipi_dsi_compression_mode_multi(struct mipi_dsi_multi_context *ctx,
+				     bool enable)
+{
+	return mipi_dsi_compression_mode_ext_multi(ctx, enable,
+						   MIPI_DSI_COMPRESSION_DSC, 0);
+}
+EXPORT_SYMBOL(mipi_dsi_compression_mode_multi);
+
 /**
  * mipi_dsi_dcs_nop_multi() - send DCS NOP packet
  * @ctx: Context for multiple DSI transactions
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index f725f8654611..94400a78031f 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -280,6 +280,8 @@ void mipi_dsi_compression_mode_ext_multi(struct mipi_dsi_multi_context *ctx,
 					 bool enable,
 					 enum mipi_dsi_compression_algo algo,
 					 unsigned int pps_selector);
+void mipi_dsi_compression_mode_multi(struct mipi_dsi_multi_context *ctx,
+				     bool enable);
 void mipi_dsi_picture_parameter_set_multi(struct mipi_dsi_multi_context *ctx,
 					  const struct drm_dsc_picture_parameter_set *pps);
 

-- 
2.39.2