From d9ac773cd0f285c6df45ac35c52d47d8e6fa7c13 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Sat, 22 Sep 2012 12:38:19 +0530 Subject: [PATCH] OMAPDSS: DISPC: Add function to set channel in for writeback Writeback can take input from either one of the overlays, or one of the overlay managers. Add an enum which represents the channel_in for writeback, and maps to the register field programming. Add a function to configure channel in for writeback. This will be used later in APPLY. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dispc.c | 7 +++++++ drivers/video/omap2/dss/dss.h | 13 +++++++++++++ 2 files changed, 20 insertions(+) diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index d46cf29..f0796ba 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -983,6 +983,13 @@ static enum omap_channel dispc_ovl_get_channel_out(enum omap_plane plane) return channel; } +void dispc_wb_set_channel_in(enum dss_writeback_channel channel) +{ + enum omap_plane plane = OMAP_DSS_WB; + + REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), channel, 18, 16); +} + static void dispc_ovl_set_burst_size(enum omap_plane plane, enum omap_burst_size burst_size) { diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 322a2be..379e078 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -113,6 +113,17 @@ enum dss_dsi_content_type { DSS_DSI_CONTENT_GENERIC, }; +enum dss_writeback_channel { + DSS_WB_LCD1_MGR = 0, + DSS_WB_LCD2_MGR = 1, + DSS_WB_TV_MGR = 2, + DSS_WB_OVL0 = 3, + DSS_WB_OVL1 = 4, + DSS_WB_OVL2 = 5, + DSS_WB_OVL3 = 6, + DSS_WB_LCD3_MGR = 7, +}; + struct dss_clock_info { /* rates that we get with dividers below */ unsigned long fck; @@ -475,6 +486,8 @@ int dispc_mgr_get_clock_div(enum omap_channel channel, void dispc_mgr_setup(enum omap_channel channel, struct omap_overlay_manager_info *info); +void dispc_wb_set_channel_in(enum dss_writeback_channel channel); + /* VENC */ #ifdef CONFIG_OMAP2_DSS_VENC int venc_init_platform_driver(void) __init; -- 2.7.4