diff options
| author | Stefan Agner <stefan.agner@toradex.com> | 2016-10-04 18:30:06 -0700 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-01-11 15:33:24 +0100 |
| commit | ab74a9178b89e3082a564fa38d79e099fb381274 (patch) | |
| tree | 1f685f0c2f14ec6cc7bbbbbdc45f4420ebc2dc94 | |
| parent | b385ffb3b913b1afb180fe4d7a316cd7d00a7b06 (diff) | |
drm/fsl-dcu: do not explicitly transfer registers on plane init
There is no need to explicitly initiate a register transfer and
turn off the DCU after initializing the plane registers. In fact,
this is harmful and leads to unnecessary flickers if the DCU has
been left on by the bootloader.
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index 1870e846e38d..3ad0debacadf 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -222,11 +222,6 @@ void fsl_dcu_drm_init_planes(struct drm_device *dev) for (j = 1; j <= fsl_dev->soc->layer_regs; j++) regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0); } - regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, - DCU_MODE_DCU_MODE_MASK, - DCU_MODE_DCU_MODE(DCU_MODE_OFF)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); } int fsl_dcu_drm_create_planes(struct drm_device *dev, struct drm_plane **primary, |