This commit adds a base API for configuring VS modes,
which will streamline the setup and management of display modes
in the VS DRM subsystem.
In this implementation, we are using drm_atomic_helper_commit_tail_rpm()
instead of drm_atomic_helper_commit_tail() to ensure that
we skip planes related to inactive CRTCs.
This helps to optimize the commit process and reduces unnecessary overhead
when dealing with inactive display resources.
Signed-off-by: keith zhao <keith.zhao@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/verisilicon/Makefile | 3 ++-
drivers/gpu/drm/verisilicon/vs_modeset.c | 31 ++++++++++++++++++++++++
drivers/gpu/drm/verisilicon/vs_modeset.h | 10 ++++++++
3 files changed, 43 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/verisilicon/vs_modeset.c
create mode 100644 drivers/gpu/drm/verisilicon/vs_modeset.h
diff --git a/drivers/gpu/drm/verisilicon/Makefile b/drivers/gpu/drm/verisilicon/Makefile
index 7da54b259940..842867dad4cb 100644
--- a/drivers/gpu/drm/verisilicon/Makefile
+++ b/drivers/gpu/drm/verisilicon/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
-vs_drm-objs := vs_dc_hw.o
+vs_drm-objs := vs_dc_hw.o \
+ vs_modeset.o
obj-$(CONFIG_DRM_VERISILICON_DC8200) += vs_drm.o
diff --git a/drivers/gpu/drm/verisilicon/vs_modeset.c b/drivers/gpu/drm/verisilicon/vs_modeset.c
new file mode 100644
index 000000000000..0873a3465143
--- /dev/null
+++ b/drivers/gpu/drm/verisilicon/vs_modeset.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) VeriSilicon Holdings Co., Ltd.
+ */
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+
+#include "vs_modeset.h"
+
+static const struct drm_mode_config_funcs vs_mode_config_funcs = {
+ .fb_create = drm_gem_fb_create,
+ .atomic_check = drm_atomic_helper_check,
+ .atomic_commit = drm_atomic_helper_commit,
+};
+
+static struct drm_mode_config_helper_funcs vs_mode_config_helpers = {
+ .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
+};
+
+void vs_mode_config_init(struct drm_device *dev)
+{
+ int ret;
+
+ ret = drmm_mode_config_init(dev);
+ if (ret)
+ return;
+
+ dev->mode_config.funcs = &vs_mode_config_funcs;
+ dev->mode_config.helper_private = &vs_mode_config_helpers;
+}
diff --git a/drivers/gpu/drm/verisilicon/vs_modeset.h b/drivers/gpu/drm/verisilicon/vs_modeset.h
new file mode 100644
index 000000000000..bd04f81d2ad2
--- /dev/null
+++ b/drivers/gpu/drm/verisilicon/vs_modeset.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 VeriSilicon Holdings Co., Ltd.
+ */
+
+#ifndef __VS_MODESET_H__
+#define __VS_MODESET_H__
+
+void vs_mode_config_init(struct drm_device *dev);
+#endif /* __VS_FB_H__ */
--
2.34.1
