OMAP: DSS2: Change remaining DISPC functions for new omap_channel argument

The following dispc functions are also changed to incorporate channel as an argument:
	-dispc_lclk_rate()
	-dispc_pclk_rate()
	-dispc_set_pol_freq()
	-dispc_set_clock_div()
	-dispc_get_clock_div()

Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Mukund Mittal <mmittal@ti.com>
Signed-off-by: Samreen <samreen@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
[tomi.valkeinen@nokia.com: fixed trivial compile error]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 7ca53c1..5dfdf0b 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1444,12 +1444,13 @@
 	}
 }
 
-static unsigned long calc_fclk_five_taps(u16 width, u16 height,
-		u16 out_width, u16 out_height, enum omap_color_mode color_mode)
+static unsigned long calc_fclk_five_taps(enum omap_channel channel, u16 width,
+		u16 height, u16 out_width, u16 out_height,
+		enum omap_color_mode color_mode)
 {
 	u32 fclk = 0;
 	/* FIXME venc pclk? */
-	u64 tmp, pclk = dispc_pclk_rate();
+	u64 tmp, pclk = dispc_pclk_rate(channel);
 
 	if (height > out_height) {
 		/* FIXME get real display PPL */
@@ -1481,8 +1482,8 @@
 	return fclk;
 }
 
-static unsigned long calc_fclk(u16 width, u16 height,
-		u16 out_width, u16 out_height)
+static unsigned long calc_fclk(enum omap_channel channel, u16 width,
+		u16 height, u16 out_width, u16 out_height)
 {
 	unsigned int hf, vf;
 
@@ -1506,7 +1507,7 @@
 		vf = 1;
 
 	/* FIXME venc pclk? */
-	return dispc_pclk_rate() * vf * hf;
+	return dispc_pclk_rate(channel) * vf * hf;
 }
 
 void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)
@@ -1582,7 +1583,7 @@
 		five_taps = height > out_height * 2;
 
 		if (!five_taps) {
-			fclk = calc_fclk(width, height,
+			fclk = calc_fclk(OMAP_DSS_CHANNEL_LCD, width, height,
 					out_width, out_height);
 
 			/* Try 5-tap filter if 3-tap fclk is too high */
@@ -1597,8 +1598,9 @@
 		}
 
 		if (five_taps)
-			fclk = calc_fclk_five_taps(width, height,
-					out_width, out_height, color_mode);
+			fclk = calc_fclk_five_taps(OMAP_DSS_CHANNEL_LCD, width,
+					height, out_width, out_height,
+					color_mode);
 
 		DSSDBG("required fclk rate = %lu Hz\n", fclk);
 		DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate());
@@ -2155,13 +2157,14 @@
 	DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
 }
 
-static void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div)
+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);
 
 	enable_clocks(1);
-	dispc_write_reg(DISPC_DIVISOR(OMAP_DSS_CHANNEL_LCD),
+	dispc_write_reg(DISPC_DIVISOR(channel),
 			FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
 	enable_clocks(0);
 }
@@ -2189,13 +2192,13 @@
 	return r;
 }
 
-unsigned long dispc_lclk_rate(void)
+unsigned long dispc_lclk_rate(enum omap_channel channel)
 {
 	int lcd;
 	unsigned long r;
 	u32 l;
 
-	l = dispc_read_reg(DISPC_DIVISOR(OMAP_DSS_CHANNEL_LCD));
+	l = dispc_read_reg(DISPC_DIVISOR(channel));
 
 	lcd = FLD_GET(l, 23, 16);
 
@@ -2204,13 +2207,13 @@
 	return r / lcd;
 }
 
-unsigned long dispc_pclk_rate(void)
+unsigned long dispc_pclk_rate(enum omap_channel channel)
 {
 	int lcd, pcd;
 	unsigned long r;
 	u32 l;
 
-	l = dispc_read_reg(DISPC_DIVISOR(OMAP_DSS_CHANNEL_LCD));
+	l = dispc_read_reg(DISPC_DIVISOR(channel));
 
 	lcd = FLD_GET(l, 23, 16);
 	pcd = FLD_GET(l, 7, 0);
@@ -2235,8 +2238,10 @@
 			"dss1_alwon_fclk" : "dsi1_pll_fclk");
 
 	seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());
-	seq_printf(s, "lck\t\t%-16lulck div\t%u\n", dispc_lclk_rate(), lcd);
-	seq_printf(s, "pck\t\t%-16lupck div\t%u\n", dispc_pclk_rate(), pcd);
+	seq_printf(s, "lck\t\t%-16lulck div\t%u\n",
+			dispc_lclk_rate(OMAP_DSS_CHANNEL_LCD), lcd);
+	seq_printf(s, "pck\t\t%-16lupck div\t%u\n",
+			dispc_pclk_rate(OMAP_DSS_CHANNEL_LCD), pcd);
 
 	enable_clocks(0);
 }
@@ -2428,8 +2433,8 @@
 #undef DUMPREG
 }
 
-static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc,
-				bool ihs, bool ivs, u8 acbi, u8 acb)
+static void _dispc_set_pol_freq(enum omap_channel channel, bool onoff, bool rf,
+		bool ieo, bool ipc, bool ihs, bool ivs, u8 acbi, u8 acb)
 {
 	u32 l = 0;
 
@@ -2446,13 +2451,14 @@
 	l |= FLD_VAL(acb, 7, 0);
 
 	enable_clocks(1);
-	dispc_write_reg(DISPC_POL_FREQ(OMAP_DSS_CHANNEL_LCD), l);
+	dispc_write_reg(DISPC_POL_FREQ(channel), l);
 	enable_clocks(0);
 }
 
-void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb)
+void dispc_set_pol_freq(enum omap_channel channel,
+		enum omap_panel_config config, u8 acbi, u8 acb)
 {
-	_dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0,
+	_dispc_set_pol_freq(channel, (config & OMAP_DSS_LCD_ONOFF) != 0,
 			(config & OMAP_DSS_LCD_RF) != 0,
 			(config & OMAP_DSS_LCD_IEO) != 0,
 			(config & OMAP_DSS_LCD_IPC) != 0,
@@ -2521,24 +2527,26 @@
 	return 0;
 }
 
-int dispc_set_clock_div(struct dispc_clock_info *cinfo)
+int dispc_set_clock_div(enum omap_channel channel,
+		struct dispc_clock_info *cinfo)
 {
 	DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div);
 	DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div);
 
-	dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div);
+	dispc_set_lcd_divisor(channel, cinfo->lck_div, cinfo->pck_div);
 
 	return 0;
 }
 
-int dispc_get_clock_div(struct dispc_clock_info *cinfo)
+int dispc_get_clock_div(enum omap_channel channel,
+		struct dispc_clock_info *cinfo)
 {
 	unsigned long fck;
 
 	fck = dispc_fclk_rate();
 
-	cinfo->lck_div = REG_GET(DISPC_DIVISOR(OMAP_DSS_CHANNEL_LCD), 23, 16);
-	cinfo->pck_div = REG_GET(DISPC_DIVISOR(OMAP_DSS_CHANNEL_LCD), 7, 0);
+	cinfo->lck_div = REG_GET(DISPC_DIVISOR(channel), 23, 16);
+	cinfo->pck_div = REG_GET(DISPC_DIVISOR(channel), 7, 0);
 
 	cinfo->lck = fck / cinfo->lck_div;
 	cinfo->pck = cinfo->lck / cinfo->pck_div;