diff options
Diffstat (limited to 'drivers/video/omap2/dss/dispc.c')
| -rw-r--r-- | drivers/video/omap2/dss/dispc.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 7a9a2e7d968..fbf3edfa11b 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -2433,7 +2433,7 @@ static void dispc_set_lcd_divisor(enum omap_channel channel, u16 lck_div, u16 pck_div) { BUG_ON(lck_div < 1); - BUG_ON(pck_div < 2); + BUG_ON(pck_div < 1); enable_clocks(1); dispc_write_reg(DISPC_DIVISORo(channel), @@ -2903,11 +2903,17 @@ void dispc_set_pol_freq(enum omap_channel channel, void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck, struct dispc_clock_info *cinfo) { - u16 pcd_min = is_tft ? 2 : 3; + u16 pcd_min, pcd_max; unsigned long best_pck; u16 best_ld, cur_ld; u16 best_pd, cur_pd; + pcd_min = dss_feat_get_param_min(FEAT_PARAM_DSS_PCD); + pcd_max = dss_feat_get_param_max(FEAT_PARAM_DSS_PCD); + + if (!is_tft) + pcd_min = 3; + best_pck = 0; best_ld = 0; best_pd = 0; @@ -2915,7 +2921,7 @@ void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck, for (cur_ld = 1; cur_ld <= 255; ++cur_ld) { unsigned long lck = fck / cur_ld; - for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) { + for (cur_pd = pcd_min; cur_pd <= pcd_max; ++cur_pd) { unsigned long pck = lck / cur_pd; long old_delta = abs(best_pck - req_pck); long new_delta = abs(pck - req_pck); @@ -2950,7 +2956,7 @@ int dispc_calc_clock_rates(unsigned long dispc_fclk_rate, { if (cinfo->lck_div > 255 || cinfo->lck_div == 0) return -EINVAL; - if (cinfo->pck_div < 2 || cinfo->pck_div > 255) + if (cinfo->pck_div < 1 || cinfo->pck_div > 255) return -EINVAL; cinfo->lck = dispc_fclk_rate / cinfo->lck_div; |