From: Kishore Y <kishore.y@ti.com>
Date: Sun, 25 Apr 2010 10:57:19 +0000 (+0530)
Subject: OMAP3630: DSS2: Updating MAX divider value
X-Git-Tag: v2.6.35-rc1~445^2~4
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ac01bb7ea06a02c8dc9084b4ed59cb59efeceb39;p=karo-tx-linux.git

OMAP3630: DSS2: Updating MAX divider value

In DPLL4 M3, M4, M5 and M6 field width has been increased by 1 bit in 3630.
So the max divider value that can be achived will be 32 and not 16.
In 3630 the functional clock is x1 of DPLL4 and not x2. Hence multiplier 2
is removed.

Signed-off-by: Sudeep Basavaraj <sudeep.basavaraj@ti.com>
Signed-off-by: Mukund Mittal <mmittal@ti.com>
Signed-off-by: Kishore Y <kishore.y@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
---

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 54344184dd73..24b18258654f 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -223,7 +223,13 @@ void dss_dump_clocks(struct seq_file *s)
 
 	seq_printf(s, "dpll4_ck %lu\n", dpll4_ck_rate);
 
-	seq_printf(s, "dss1_alwon_fclk = %lu / %lu * 2 = %lu\n",
+	if (cpu_is_omap3630())
+		seq_printf(s, "dss1_alwon_fclk = %lu / %lu  = %lu\n",
+			dpll4_ck_rate,
+			dpll4_ck_rate / dpll4_m4_ck_rate,
+			dss_clk_get_rate(DSS_CLK_FCK1));
+	else
+		seq_printf(s, "dss1_alwon_fclk = %lu / %lu * 2 = %lu\n",
 			dpll4_ck_rate,
 			dpll4_ck_rate / dpll4_m4_ck_rate,
 			dss_clk_get_rate(DSS_CLK_FCK1));
@@ -293,7 +299,8 @@ int dss_calc_clock_rates(struct dss_clock_info *cinfo)
 {
 	unsigned long prate;
 
-	if (cinfo->fck_div > 16 || cinfo->fck_div == 0)
+	if (cinfo->fck_div > (cpu_is_omap3630() ? 32 : 16) ||
+						cinfo->fck_div == 0)
 		return -EINVAL;
 
 	prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
@@ -329,7 +336,10 @@ int dss_get_clock_div(struct dss_clock_info *cinfo)
 	if (cpu_is_omap34xx()) {
 		unsigned long prate;
 		prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
-		cinfo->fck_div = prate / (cinfo->fck / 2);
+		if (cpu_is_omap3630())
+			cinfo->fck_div = prate / (cinfo->fck);
+		else
+			cinfo->fck_div = prate / (cinfo->fck / 2);
 	} else {
 		cinfo->fck_div = 0;
 	}
@@ -402,10 +412,14 @@ retry:
 
 		goto found;
 	} else if (cpu_is_omap34xx()) {
-		for (fck_div = 16; fck_div > 0; --fck_div) {
+		for (fck_div = (cpu_is_omap3630() ? 32 : 16);
+					fck_div > 0; --fck_div) {
 			struct dispc_clock_info cur_dispc;
 
-			fck = prate / fck_div * 2;
+			if (cpu_is_omap3630())
+				fck = prate / fck_div;
+			else
+				fck = prate / fck_div * 2;
 
 			if (fck > DISPC_MAX_FCK)
 				continue;