diff options
Diffstat (limited to 'drivers/video/omap2/dss/dispc.c')
| -rw-r--r-- | drivers/video/omap2/dss/dispc.c | 55 |
1 files changed, 46 insertions, 9 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 4ec59ca72e5d..f51646f15cf2 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 @@ -1200,7 +1202,17 @@ 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); void dispc_enable_fifomerge(bool enable) { @@ -1259,6 +1271,7 @@ void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane, *fifo_high = total_fifo_size - buf_unit; } } +EXPORT_SYMBOL(dispc_ovl_compute_fifo_thresholds); static void dispc_ovl_set_fir(enum omap_plane plane, int hinc, int vinc, @@ -1988,7 +2001,8 @@ static void calc_tiler_rotation_offset(u16 screen_width, u16 width, */ static int check_horiz_timing_omap3(unsigned long pclk, unsigned long lclk, const struct omap_video_timings *t, u16 pos_x, - u16 width, u16 height, u16 out_width, u16 out_height) + u16 width, u16 height, u16 out_width, u16 out_height, + bool five_taps) { const int ds = DIV_ROUND_UP(height, out_height); unsigned long nonactive; @@ -2008,6 +2022,10 @@ static int check_horiz_timing_omap3(unsigned long pclk, unsigned long lclk, if (blank <= limits[i]) return -EINVAL; + /* FIXME add checks for 3-tap filter once the limitations are known */ + if (!five_taps) + return 0; + /* * Pixel data should be prepared before visible display point starts. * So, atleast DS-2 lines must have already been fetched by DISPC @@ -2183,22 +2201,30 @@ static int dispc_ovl_calc_scaling_34xx(unsigned long pclk, unsigned long lclk, do { in_height = DIV_ROUND_UP(height, *decim_y); in_width = DIV_ROUND_UP(width, *decim_x); - *core_clk = calc_core_clk_five_taps(pclk, mgr_timings, - in_width, in_height, out_width, out_height, color_mode); - - error = check_horiz_timing_omap3(pclk, lclk, mgr_timings, - pos_x, in_width, in_height, out_width, - out_height); + *five_taps = in_height > out_height; if (in_width > maxsinglelinewidth) if (in_height > out_height && in_height < out_height * 2) *five_taps = false; - if (!*five_taps) +again: + if (*five_taps) + *core_clk = calc_core_clk_five_taps(pclk, mgr_timings, + in_width, in_height, out_width, + out_height, color_mode); + else *core_clk = dispc.feat->calc_core_clk(pclk, in_width, in_height, out_width, out_height, mem_to_mem); + error = check_horiz_timing_omap3(pclk, lclk, mgr_timings, + pos_x, in_width, in_height, out_width, + out_height, *five_taps); + if (error && *five_taps) { + *five_taps = false; + goto again; + } + error = (error || in_width > maxsinglelinewidth * 2 || (in_width > maxsinglelinewidth && *five_taps) || !*core_clk || *core_clk > dispc_core_clk_rate()); @@ -2215,7 +2241,7 @@ static int dispc_ovl_calc_scaling_34xx(unsigned long pclk, unsigned long lclk, } while (*decim_x <= *x_predecim && *decim_y <= *y_predecim && error); if (check_horiz_timing_omap3(pclk, lclk, mgr_timings, pos_x, width, - height, out_width, out_height)){ + height, out_width, out_height, *five_taps)) { DSSERR("horizontal timing too tight\n"); return -EINVAL; } @@ -3211,6 +3237,8 @@ static void dispc_dump_regs(struct seq_file *s) DUMPREG(DISPC_CONTROL3); DUMPREG(DISPC_CONFIG3); } + if (dss_has_feature(FEAT_MFLAG)) + DUMPREG(DISPC_GLOBAL_MFLAG_ATTRIBUTE); #undef DUMPREG @@ -3285,6 +3313,8 @@ static void dispc_dump_regs(struct seq_file *s) DUMPREG(i, DISPC_OVL_ATTRIBUTES2); if (dss_has_feature(FEAT_PRELOAD)) DUMPREG(i, DISPC_OVL_PRELOAD); + if (dss_has_feature(FEAT_MFLAG)) + DUMPREG(i, DISPC_OVL_MFLAG_THRESHOLD); } #undef DISPC_REG @@ -3520,6 +3550,7 @@ 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 = { @@ -3539,6 +3570,7 @@ 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 = { @@ -3558,6 +3590,7 @@ 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 = { @@ -3577,6 +3610,7 @@ 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 = { @@ -3597,6 +3631,7 @@ 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) @@ -3734,6 +3769,8 @@ static int dispc_runtime_suspend(struct device *dev) static int dispc_runtime_resume(struct device *dev) { + _omap_dispc_initial_config(); + dispc_restore_context(); return 0; |