lkml.org 
[lkml]   [2019]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 18/20] drm: rcar-du: group: Enable DU's CMM extension
Date
Enable the CMM units through the display unit extensional function control
group register DEFR7.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
drivers/gpu/drm/rcar-du/rcar_du_group.c | 8 ++++++++
drivers/gpu/drm/rcar-du/rcar_du_regs.h | 5 +++++
2 files changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c
index 9eee47969e77..d252c9bb9809 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_group.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c
@@ -147,6 +147,14 @@ static void rcar_du_group_setup(struct rcar_du_group *rgrp)

rcar_du_group_setup_pins(rgrp);

+ if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CMM)) {
+ u32 defr7 = DEFR7_CODE |
+ (rgrp->cmms_mask & BIT(1) ? DEFR7_CMME1 : 0) |
+ (rgrp->cmms_mask & BIT(0) ? DEFR7_CMME0 : 0);
+
+ rcar_du_group_write(rgrp, DEFR7, defr7);
+ }
+
if (rcdu->info->gen >= 2) {
rcar_du_group_setup_defr8(rgrp);
rcar_du_group_setup_didsr(rgrp);
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h
index bc87f080b170..fb9964949368 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h
@@ -197,6 +197,11 @@
#define DEFR6_MLOS1 (1 << 2)
#define DEFR6_DEFAULT (DEFR6_CODE | DEFR6_TCNE1)

+#define DEFR7 0x000ec
+#define DEFR7_CODE (0x7779 << 16)
+#define DEFR7_CMME1 BIT(6)
+#define DEFR7_CMME0 BIT(4)
+
/* -----------------------------------------------------------------------------
* R8A7790-only Control Registers
*/
--
2.21.0
\
 
 \ /
  Last update: 2019-06-06 16:23    [W:0.263 / U:1.116 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site