Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 103 insertions, 0 deletions

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h
new file mode 100644
index 000000000..d0f38a8b3
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * R-Car Display Unit CRTCs
+ *
+ * Copyright (C) 2013-2015 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+
+#ifndef __RCAR_DU_CRTC_H__
+#define __RCAR_DU_CRTC_H__
+
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_writeback.h>
+
+#include <media/vsp1.h>
+
+struct rcar_du_group;
+struct rcar_du_vsp;
+
+/**
+ * struct rcar_du_crtc - the CRTC, representing a DU superposition processor
+ * @crtc: base DRM CRTC
+ * @dev: the DU device
+ * @clock: the CRTC functional clock
+ * @extclock: external pixel dot clock (optional)
+ * @mmio_offset: offset of the CRTC registers in the DU MMIO block
+ * @index: CRTC hardware index
+ * @initialized: whether the CRTC has been initialized and clocks enabled
+ * @dsysr: cached value of the DSYSR register
+ * @vblank_enable: whether vblank events are enabled on this CRTC
+ * @event: event to post when the pending page flip completes
+ * @flip_wait: wait queue used to signal page flip completion
+ * @vblank_lock: protects vblank_wait and vblank_count
+ * @vblank_wait: wait queue used to signal vertical blanking
+ * @vblank_count: number of vertical blanking interrupts to wait for
+ * @group: CRTC group this CRTC belongs to
+ * @cmm: CMM associated with this CRTC
+ * @vsp: VSP feeding video to this CRTC
+ * @vsp_pipe: index of the VSP pipeline feeding video to this CRTC
+ * @writeback: the writeback connector
+ */
+struct rcar_du_crtc {
+	struct drm_crtc crtc;
+
+	struct rcar_du_device *dev;
+	struct clk *clock;
+	struct clk *extclock;
+	unsigned int mmio_offset;
+	unsigned int index;
+	bool initialized;
+
+	u32 dsysr;
+
+	bool vblank_enable;
+	struct drm_pending_vblank_event *event;
+	wait_queue_head_t flip_wait;
+
+	spinlock_t vblank_lock;
+	wait_queue_head_t vblank_wait;
+	unsigned int vblank_count;
+
+	struct rcar_du_group *group;
+	struct platform_device *cmm;
+	struct rcar_du_vsp *vsp;
+	unsigned int vsp_pipe;
+
+	const char *const *sources;
+	unsigned int sources_count;
+
+	struct drm_writeback_connector writeback;
+};
+
+#define to_rcar_crtc(c)		container_of(c, struct rcar_du_crtc, crtc)
+#define wb_to_rcar_crtc(c)	container_of(c, struct rcar_du_crtc, writeback)
+
+/**
+ * struct rcar_du_crtc_state - Driver-specific CRTC state
+ * @state: base DRM CRTC state
+ * @crc: CRC computation configuration
+ * @outputs: bitmask of the outputs (enum rcar_du_output) driven by this CRTC
+ */
+struct rcar_du_crtc_state {
+	struct drm_crtc_state state;
+
+	struct vsp1_du_crc_config crc;
+	unsigned int outputs;
+};
+
+#define to_rcar_crtc_state(s) container_of(s, struct rcar_du_crtc_state, state)
+
+int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex,
+			unsigned int hwindex);
+
+void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc);
+
+void rcar_du_crtc_dsysr_clr_set(struct rcar_du_crtc *rcrtc, u32 clr, u32 set);
+
+#endif /* __RCAR_DU_CRTC_H__ */