UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm: rcar-du: Compute plane DDCR4 register value directly 

There's no need for a read-modify-write pattern, all register bits can
be set explicitly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2015-07-27 12:46:44 +03:00
parent 1b0fd0ea49
commit ff967363dd
1 changed files with 3 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/rcar-du/rcar_du_plane.c
View File

@ -28,13 +28,6 @@
#define RCAR_DU_COLORKEY_SOURCE (1 << 24)
#define RCAR_DU_COLORKEY_MASK (1 << 24)
static u32 rcar_du_plane_read(struct rcar_du_group *rgrp,
unsigned int index, u32 reg)
{
return rcar_du_read(rgrp->dev,
rgrp->mmio_offset + index * PLANE_OFF + reg);
}
static void rcar_du_plane_write(struct rcar_du_group *rgrp,
unsigned int index, u32 reg, u32 data)
{
@ -182,9 +175,6 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
* The data format is selected by the DDDF field in PnMR and the EDF
* field in DDCR4.
*/
ddcr4 = rcar_du_plane_read(rgrp, index, PnDDCR4);
ddcr4 &= ~PnDDCR4_EDF_MASK;
ddcr4 |= state->format->edf | PnDDCR4_CODE;
rcar_du_plane_setup_mode(plane, index);
@ -204,6 +194,9 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
}
rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
ddcr4 = state->format->edf | PnDDCR4_CODE;
rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);
/* Destination position and size */