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| author | Archit Taneja <archit@ti.com> | 2012-08-24 16:59:26 +0530 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-09-26 14:58:51 +0300 |
| commit | 9e4a0fc76549e1105fd4a2c7e03871c31110387e (patch) | |
| tree | dbe31accae359704b7ac65821fec99fbafa794fb /drivers | |
| parent | 749feffa6b697c15f6016063994ca9d0ec300235 (diff) | |
| download | linux-9e4a0fc76549e1105fd4a2c7e03871c31110387e.tar.gz linux-9e4a0fc76549e1105fd4a2c7e03871c31110387e.tar.bz2 linux-9e4a0fc76549e1105fd4a2c7e03871c31110387e.zip | |
OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup()
Configure some of the writeback specific parameters in dispc_wb_setup(). The
writeback parameters configured are:
truncation: This needs to be set if the color depth input to writeback is more
than the color depth of the color mode we want to store in memory.
writeback mode: This configures whether we want to use writeback in mem to mem
or capture mode. This information will be directly passed by APPLY later.
Signed-off-by: Archit Taneja <archit@ti.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/omap2/dss/dispc.c | 28 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/dss.h | 2 |
2 files changed, 27 insertions, 3 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 4d8e04583873..9f083a952747 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -2482,13 +2482,15 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi, } int dispc_wb_setup(const struct omap_dss_writeback_info *wi, - const struct omap_video_timings *mgr_timings) + bool mem_to_mem, const struct omap_video_timings *mgr_timings) { int r; + u32 l; enum omap_plane plane = OMAP_DSS_WB; const int pos_x = 0, pos_y = 0; const u8 zorder = 0, global_alpha = 0; const bool replication = false; + bool truncation; int in_width = mgr_timings->x_res; int in_height = mgr_timings->y_res; enum omap_overlay_caps caps = @@ -2503,7 +2505,29 @@ int dispc_wb_setup(const struct omap_dss_writeback_info *wi, wi->buf_width, pos_x, pos_y, in_width, in_height, wi->width, wi->height, wi->color_mode, wi->rotation, wi->mirror, zorder, wi->pre_mult_alpha, global_alpha, wi->rotation_type, - replication, mgr_timings, false); + replication, mgr_timings, mem_to_mem); + + switch (wi->color_mode) { + case OMAP_DSS_COLOR_RGB16: + case OMAP_DSS_COLOR_RGB24P: + case OMAP_DSS_COLOR_ARGB16: + case OMAP_DSS_COLOR_RGBA16: + case OMAP_DSS_COLOR_RGB12U: + case OMAP_DSS_COLOR_ARGB16_1555: + case OMAP_DSS_COLOR_XRGB16_1555: + case OMAP_DSS_COLOR_RGBX16: + truncation = true; + break; + default: + truncation = false; + break; + } + + /* setup extra DISPC_WB_ATTRIBUTES */ + l = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane)); + l = FLD_MOD(l, truncation, 10, 10); /* TRUNCATIONENABLE */ + l = FLD_MOD(l, mem_to_mem, 19, 19); /* WRITEBACKMODE */ + dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), l); return r; } diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 3f9208e88203..8677f5157318 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -488,7 +488,7 @@ void dispc_mgr_setup(enum omap_channel channel, void dispc_wb_set_channel_in(enum dss_writeback_channel channel); int dispc_wb_setup(const struct omap_dss_writeback_info *wi, - const struct omap_video_timings *timings); + bool mem_to_mem, const struct omap_video_timings *timings); /* VENC */ #ifdef CONFIG_OMAP2_DSS_VENC |