From b917fa3961448903f4ee823917194bdf20709fbd Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Fri, 27 Apr 2012 01:07:28 +0530 Subject: [PATCH] OMAPDSS: MANAGER: Create a function to check manager timings Create a function dss_mgr_check_timings() which wraps around the function dispc_mgr_timings_ok(). This is mainly a clean up to hide dispc functions from interface drivers. dss_mgr_check_timings() is added in the function dss_mgr_check(), it currently takes the timings maintained in the omap_dss_device struct. This would be later replaced by the timings stored in the manager's private data. Make dss_mgr_check_timings() and dispc_mgr_timings_ok() take a const omap_video_timings pointer since these functions just check the timings. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dispc.c | 2 +- drivers/video/omap2/dss/dpi.c | 2 +- drivers/video/omap2/dss/dss.h | 4 +++- drivers/video/omap2/dss/manager.c | 15 +++++++++++++++ 4 files changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 82012d15884b..6eec08400094 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -2479,7 +2479,7 @@ static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp, } bool dispc_mgr_timings_ok(enum omap_channel channel, - struct omap_video_timings *timings) + const struct omap_video_timings *timings) { bool timings_ok; diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c index e65cf1f9a694..e01ab9825930 100644 --- a/drivers/video/omap2/dss/dpi.c +++ b/drivers/video/omap2/dss/dpi.c @@ -311,7 +311,7 @@ int dpi_check_timings(struct omap_dss_device *dssdev, unsigned long pck; struct dispc_clock_info dispc_cinfo; - if (!dispc_mgr_timings_ok(dssdev->manager->id, timings)) + if (dss_mgr_check_timings(dssdev->manager, timings)) return -EINVAL; if (timings->pixel_clock == 0) diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index b17a2120dc25..a13b3055a447 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -208,6 +208,8 @@ int dss_init_overlay_managers(struct platform_device *pdev); void dss_uninit_overlay_managers(struct platform_device *pdev); int dss_mgr_simple_check(struct omap_overlay_manager *mgr, const struct omap_overlay_manager_info *info); +int dss_mgr_check_timings(struct omap_overlay_manager *mgr, + const struct omap_video_timings *timings); int dss_mgr_check(struct omap_overlay_manager *mgr, struct omap_dss_device *dssdev, struct omap_overlay_manager_info *info, @@ -413,7 +415,7 @@ void dispc_enable_gamma_table(bool enable); void dispc_set_loadmode(enum omap_dss_load_mode mode); bool dispc_mgr_timings_ok(enum omap_channel channel, - struct omap_video_timings *timings); + const struct omap_video_timings *timings); unsigned long dispc_fclk_rate(void); void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck, struct dispc_clock_info *cinfo); diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c index e7364603f6a1..566fbba16774 100644 --- a/drivers/video/omap2/dss/manager.c +++ b/drivers/video/omap2/dss/manager.c @@ -654,6 +654,17 @@ static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr, return 0; } +int dss_mgr_check_timings(struct omap_overlay_manager *mgr, + const struct omap_video_timings *timings) +{ + if (!dispc_mgr_timings_ok(mgr->id, timings)) { + DSSERR("check_manager: invalid timings\n"); + return -EINVAL; + } + + return 0; +} + int dss_mgr_check(struct omap_overlay_manager *mgr, struct omap_dss_device *dssdev, struct omap_overlay_manager_info *info, @@ -668,6 +679,10 @@ int dss_mgr_check(struct omap_overlay_manager *mgr, return r; } + r = dss_mgr_check_timings(mgr, &dssdev->panel.timings); + if (r) + return r; + list_for_each_entry(ovl, &mgr->overlays, list) { struct omap_overlay_info *oi; int r;