From cb2025d2509ffab1c426509fd9de3d83e40398b9 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Sun, 16 Jun 2013 21:01:02 +0200
Subject: drm/rcar-du: Introduce CRTCs groups
The R8A7779 DU is split in per-CRTC resources (scan-out engine, blending
unit, timings generator, ...) and device-global resources (start/stop
control, planes, ...) shared between the two CRTCs.
The R8A7790 introduced a third CRTC with its own set of global resources
This would be modeled as two separate DU device instances if it wasn't
for a handful or resources that are shared between the three CRTCs
(mostly related to input and output routing). For this reason the
R8A7790 DU must be modeled as a single device with three CRTCs, two sets
of "semi-global" resources, and a few device-global resources.
Introduce a new rcar_du_group driver-specific object, without any real
counterpart in the DU documentation, that models those semi-global
resources.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
drivers/gpu/drm/rcar-du/rcar_du_drv.c | 46 -----------------------------------
1 file changed, 46 deletions(-)
(limited to 'drivers/gpu/drm/rcar-du/rcar_du_drv.c')
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index 5f82e046f83e..cdc363b6cd37 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -28,52 +28,6 @@
#include "rcar_du_kms.h"
#include "rcar_du_regs.h"
-/* -----------------------------------------------------------------------------
- * Core device operations
- */
-
-/*
- * rcar_du_get - Acquire a reference to the DU
- *
- * Acquiring the first reference setups core registers. A reference must be
- * held before accessing any hardware registers.
- *
- * This function must be called with the DRM mode_config lock held.
- *
- * Return 0 in case of success or a negative error code otherwise.
- */
-int rcar_du_get(struct rcar_du_device *rcdu)
-{
- if (rcdu->use_count)
- goto done;
-
- /* Enable extended features */
- rcar_du_write(rcdu, DEFR, DEFR_CODE | DEFR_DEFE);
- rcar_du_write(rcdu, DEFR2, DEFR2_CODE | DEFR2_DEFE2G);
- rcar_du_write(rcdu, DEFR3, DEFR3_CODE | DEFR3_DEFE3);
- rcar_du_write(rcdu, DEFR4, DEFR4_CODE);
- rcar_du_write(rcdu, DEFR5, DEFR5_CODE | DEFR5_DEFE5);
-
- /* Use DS1PR and DS2PR to configure planes priorities and connects the
- * superposition 0 to DU0 pins. DU1 pins will be configured dynamically.
- */
- rcar_du_write(rcdu, DORCR, DORCR_PG1D_DS1 | DORCR_DPRS);
-
-done:
- rcdu->use_count++;
- return 0;
-}
-
-/*
- * rcar_du_put - Release a reference to the DU
- *
- * This function must be called with the DRM mode_config lock held.
- */
-void rcar_du_put(struct rcar_du_device *rcdu)
-{
- --rcdu->use_count;
-}
-
/* -----------------------------------------------------------------------------
* DRM operations
*/
--
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