[PATCH v7 03/17] drm: rcar-du: Add vsp lib support

[Biju Das]

Add RCar DU vsp lib support by moving rcar_du_vsp_disable()
to the lib file so that same function can be used by both
RCar and RZ/G2L DU VSP drivers.

Signed-off-by: Biju Das <biju.das.jz at bp.renesas.com>
---
v6->v7:
 * Rebased to drm-tip.
v1->v6:
 * Rebased on drm-misc-next and DU-next.
v1:
 * Created the lib suggested by Laurent.

Ref:
 https://patchwork.kernel.org/project/linux-renesas-soc/patch/20220316131100.30685-6-biju.das.jz@bp.renesas.com/
---
 drivers/gpu/drm/rcar-du/Kconfig           |  5 +++++
 drivers/gpu/drm/rcar-du/Makefile          |  1 +
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c     |  5 -----
 drivers/gpu/drm/rcar-du/rcar_du_vsp.h     |  4 ++--
 drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.c | 17 +++++++++++++++++
 drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.h | 19 +++++++++++++++++++
 6 files changed, 44 insertions(+), 7 deletions(-)
 create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.c
 create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.h

diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig
index 07a922cc3504..373568a23655 100644
--- a/drivers/gpu/drm/rcar-du/Kconfig
+++ b/drivers/gpu/drm/rcar-du/Kconfig
@@ -85,3 +85,8 @@ config DRM_RCAR_LIB
 	bool
 	default y
 	depends on DRM_RCAR_DU
+
+config DRM_RCAR_VSP_LIB
+	bool
+	default y
+	depends on DRM_RCAR_VSP
diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile
index 3ce410300334..8fc924cf37a7 100644
--- a/drivers/gpu/drm/rcar-du/Makefile
+++ b/drivers/gpu/drm/rcar-du/Makefile
@@ -10,6 +10,7 @@ rcar-du-drm-$(CONFIG_DRM_RCAR_LIB) += rcar_du_encoder_lib.o \
 				      rcar_du_kms_lib.o
 
 rcar-du-drm-$(CONFIG_DRM_RCAR_VSP)	+= rcar_du_vsp.o
+rcar-du-drm-$(CONFIG_DRM_RCAR_VSP_LIB)	+= rcar_du_vsp_lib.o
 rcar-du-drm-$(CONFIG_DRM_RCAR_WRITEBACK) += rcar_du_writeback.o
 
 obj-$(CONFIG_DRM_RCAR_CMM)		+= rcar_cmm.o
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
index 45c05d0ffc70..3dab5fc822cf 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
@@ -88,11 +88,6 @@ void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
 	vsp1_du_setup_lif(crtc->vsp->vsp, crtc->vsp_pipe, &cfg);
 }
 
-void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
-{
-	vsp1_du_setup_lif(crtc->vsp->vsp, crtc->vsp_pipe, NULL);
-}
-
 void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
 {
 	vsp1_du_atomic_begin(crtc->vsp->vsp, crtc->vsp_pipe);
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.h b/drivers/gpu/drm/rcar-du/rcar_du_vsp.h
index 67630f0b6599..8fbfa86c93e0 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.h
@@ -12,6 +12,8 @@
 
 #include <drm/drm_plane.h>
 
+#include "rcar_du_vsp_lib.h"
+
 struct drm_framebuffer;
 struct rcar_du_format_info;
 struct rcar_du_vsp;
@@ -59,7 +61,6 @@ to_rcar_vsp_plane_state(struct drm_plane_state *state)
 int rcar_du_vsp_init(struct rcar_du_vsp *vsp, struct device_node *np,
 		     unsigned int crtcs);
 void rcar_du_vsp_enable(struct rcar_du_crtc *crtc);
-void rcar_du_vsp_disable(struct rcar_du_crtc *crtc);
 void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc);
 void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc);
 int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
@@ -74,7 +75,6 @@ static inline int rcar_du_vsp_init(struct rcar_du_vsp *vsp,
 	return -ENXIO;
 }
 static inline void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) { };
-static inline void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { };
 static inline void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc) { };
 static inline void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc) { };
 static inline int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp,
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.c
new file mode 100644
index 000000000000..374707b9cc12
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * R-Car Display Unit VSP-Based Compositor Lib
+ *
+ * Copyright (C) 2015-2023 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart at ideasonboard.com)
+ */
+
+#include <media/vsp1.h>
+
+#include "rcar_du_drv.h"
+
+void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
+{
+	vsp1_du_setup_lif(crtc->vsp->vsp, crtc->vsp_pipe, NULL);
+}
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.h b/drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.h
new file mode 100644
index 000000000000..55b026f20c46
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp_lib.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * R-Car Display Unit VSP-Based Compositor Lib
+ *
+ * Copyright (C) 2015-2023 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart at ideasonboard.com)
+ */
+
+#ifndef __RCAR_DU_VSP_LIB_H__
+#define __RCAR_DU_VSP_LIB_H__
+
+#ifdef CONFIG_DRM_RCAR_VSP
+void rcar_du_vsp_disable(struct rcar_du_crtc *crtc);
+#else
+static inline void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { };
+#endif
+
+#endif /* __RCAR_DU_VSP_LIB_H__ */
-- 
2.25.1