diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/omap2/dss/dispc.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 0db46c0eac48..b05bf3fe364e 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -90,6 +90,8 @@ struct dispc_features { /* revert to the OMAP4 mechanism of DISPC Smart Standby operation */ bool mstandby_workaround:1; + + bool set_max_preload:1; }; #define DISPC_MAX_NR_FIFOS 5 @@ -1200,6 +1202,15 @@ void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high) dispc_write_reg(DISPC_OVL_FIFO_THRESHOLD(plane), FLD_VAL(high, hi_start, hi_end) | FLD_VAL(low, lo_start, lo_end)); + + /* + * configure the preload to the pipeline's high threhold, if HT it's too + * large for the preload field, set the threshold to the maximum value + * that can be held by the preload register + */ + if (dss_has_feature(FEAT_PRELOAD) && dispc.feat->set_max_preload && + plane != OMAP_DSS_WB) + dispc_write_reg(DISPC_OVL_PRELOAD(plane), min(high, 0xfffu)); } EXPORT_SYMBOL(dispc_ovl_set_fifo_threshold); @@ -3526,6 +3537,7 @@ static const struct dispc_features omap24xx_dispc_feats __initconst = { .calc_core_clk = calc_core_clk_24xx, .num_fifos = 3, .no_framedone_tv = true, + .set_max_preload = false, }; static const struct dispc_features omap34xx_rev1_0_dispc_feats __initconst = { @@ -3545,6 +3557,7 @@ static const struct dispc_features omap34xx_rev1_0_dispc_feats __initconst = { .calc_core_clk = calc_core_clk_34xx, .num_fifos = 3, .no_framedone_tv = true, + .set_max_preload = false, }; static const struct dispc_features omap34xx_rev3_0_dispc_feats __initconst = { @@ -3564,6 +3577,7 @@ static const struct dispc_features omap34xx_rev3_0_dispc_feats __initconst = { .calc_core_clk = calc_core_clk_34xx, .num_fifos = 3, .no_framedone_tv = true, + .set_max_preload = false, }; static const struct dispc_features omap44xx_dispc_feats __initconst = { @@ -3583,6 +3597,7 @@ static const struct dispc_features omap44xx_dispc_feats __initconst = { .calc_core_clk = calc_core_clk_44xx, .num_fifos = 5, .gfx_fifo_workaround = true, + .set_max_preload = true, }; static const struct dispc_features omap54xx_dispc_feats __initconst = { @@ -3603,6 +3618,7 @@ static const struct dispc_features omap54xx_dispc_feats __initconst = { .num_fifos = 5, .gfx_fifo_workaround = true, .mstandby_workaround = true, + .set_max_preload = true, }; static int __init dispc_init_features(struct platform_device *pdev) |