diff options
| -rw-r--r-- | drivers/video/omap2/dss/dss.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c index 9d2390299df7..3f1fee63c678 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -256,7 +256,7 @@ void dss_dump_clocks(struct seq_file *s) seq_printf(s, "dpll4_ck %lu\n", dpll4_ck_rate); - if (cpu_is_omap3630()) + if (cpu_is_omap3630() || cpu_is_omap44xx()) seq_printf(s, "%s (%s) = %lu / %lu = %lu\n", fclk_name, fclk_real_name, dpll4_ck_rate, @@ -394,9 +394,12 @@ int dss_calc_clock_rates(struct dss_clock_info *cinfo) { if (dss.dpll4_m4_ck) { unsigned long prate; + u16 fck_div_max = 16; - if (cinfo->fck_div > (cpu_is_omap3630() ? 32 : 16) || - cinfo->fck_div == 0) + if (cpu_is_omap3630() || cpu_is_omap44xx()) + fck_div_max = 32; + + if (cinfo->fck_div > fck_div_max || cinfo->fck_div == 0) return -EINVAL; prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck)); @@ -442,7 +445,7 @@ int dss_get_clock_div(struct dss_clock_info *cinfo) prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck)); - if (cpu_is_omap3630()) + if (cpu_is_omap3630() || cpu_is_omap44xx()) cinfo->fck_div = prate / (cinfo->fck); else cinfo->fck_div = prate / (cinfo->fck / 2); @@ -471,7 +474,7 @@ int dss_calc_clock_div(bool is_tft, unsigned long req_pck, unsigned long fck, max_dss_fck; - u16 fck_div; + u16 fck_div, fck_div_max = 16; int match = 0; int min_fck_per_pck; @@ -504,7 +507,7 @@ retry: memset(&best_dss, 0, sizeof(best_dss)); memset(&best_dispc, 0, sizeof(best_dispc)); - if (cpu_is_omap24xx()) { + if (dss.dpll4_m4_ck == NULL) { struct dispc_clock_info cur_dispc; /* XXX can we change the clock on omap2? */ fck = dss_clk_get_rate(DSS_CLK_FCK); @@ -519,12 +522,14 @@ retry: best_dispc = cur_dispc; goto found; - } else if (cpu_is_omap34xx()) { - for (fck_div = (cpu_is_omap3630() ? 32 : 16); - fck_div > 0; --fck_div) { + } else { + if (cpu_is_omap3630() || cpu_is_omap44xx()) + fck_div_max = 32; + + for (fck_div = fck_div_max; fck_div > 0; --fck_div) { struct dispc_clock_info cur_dispc; - if (cpu_is_omap3630()) + if (fck_div_max == 32) fck = prate / fck_div; else fck = prate / fck_div * 2; @@ -552,8 +557,6 @@ retry: goto found; } } - } else { - BUG(); } found: @@ -684,6 +687,13 @@ static int dss_init(void) r = PTR_ERR(dpll4_m4_ck); goto fail1; } + } else if (cpu_is_omap44xx()) { + dpll4_m4_ck = clk_get(NULL, "dpll_per_m5x2_ck"); + if (IS_ERR(dpll4_m4_ck)) { + DSSERR("Failed to get dpll4_m4_ck\n"); + r = PTR_ERR(dpll4_m4_ck); + goto fail1; + } } else { /* omap24xx */ dpll4_m4_ck = NULL; } |