OMAPDSS: HDMI: split PLL enable & config

At the moment we have one function, hdmi_pll_enable, which enables the
PLL and writes the PLL configuration to registers.

To make the HDMI PLL ahere to the DSS PLL API, split the hdmi_pll_enable
into two parts: hdmi_pll_enable which enables the PLL HW, and
hdmi_pll_set_config which writes the config.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/fbdev/omap2/dss/hdmi.h

@@ -316,6 +316,7 @@ int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp);
 /* HDMI PLL funcs */
 int hdmi_pll_enable(struct hdmi_pll_data *pll);
 void hdmi_pll_disable(struct hdmi_pll_data *pll);
+int hdmi_pll_set_config(struct hdmi_pll_data *pll);
 void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
 void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin,
 	unsigned long target_tmds);

drivers/video/fbdev/omap2/dss/hdmi4.c

@@ -196,13 +196,18 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 
 	hdmi_pll_compute(&hdmi.pll, clk_get_rate(hdmi.sys_clk), p->pixelclock);
 
-	/* config the PLL and PHY hdmi_set_pll_pwrfirst */
 	r = hdmi_pll_enable(&hdmi.pll);
 	if (r) {
-		DSSDBG("Failed to lock PLL\n");
+		DSSERR("Failed to enable PLL\n");
 		goto err_pll_enable;
 	}
 
+	r = hdmi_pll_set_config(&hdmi.pll);
+	if (r) {
+		DSSERR("Failed to configure PLL\n");
+		goto err_pll_cfg;
+	}
+
 	r = hdmi_phy_configure(&hdmi.phy, hdmi.pll.info.clkdco,
 		hdmi.pll.info.clkout);
 	if (r) {
@@ -241,6 +246,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 err_phy_cfg:
 	hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
 err_phy_pwr:
+err_pll_cfg:
 	hdmi_pll_disable(&hdmi.pll);
 err_pll_enable:
 	hdmi_power_off_core(dssdev);

drivers/video/fbdev/omap2/dss/hdmi5.c

@@ -214,13 +214,18 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 	hdmi_wp_set_irqstatus(&hdmi.wp,
 			hdmi_wp_get_irqstatus(&hdmi.wp));
 
-	/* config the PLL and PHY hdmi_set_pll_pwrfirst */
 	r = hdmi_pll_enable(&hdmi.pll);
 	if (r) {
-		DSSDBG("Failed to lock PLL\n");
+		DSSERR("Failed to enable PLL\n");
 		goto err_pll_enable;
 	}
 
+	r = hdmi_pll_set_config(&hdmi.pll);
+	if (r) {
+		DSSERR("Failed to configure PLL\n");
+		goto err_pll_cfg;
+	}
+
 	r = hdmi_phy_configure(&hdmi.phy, hdmi.pll.info.clkdco,
 		hdmi.pll.info.clkout);
 	if (r) {
@@ -259,6 +264,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 	hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
 err_phy_pwr:
 err_phy_cfg:
+err_pll_cfg:
 	hdmi_pll_disable(&hdmi.pll);
 err_pll_enable:
 	hdmi_power_off_core(dssdev);

drivers/video/fbdev/omap2/dss/hdmi_pll.c

@@ -103,7 +103,7 @@ void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin,
 	pi->clkout = clkout;
 }
 
-static int hdmi_pll_config(struct hdmi_pll_data *pll)
+int hdmi_pll_set_config(struct hdmi_pll_data *pll)
 {
 	u32 r;
 	struct hdmi_pll_info *fmt = &pll->info;
@@ -179,10 +179,6 @@ int hdmi_pll_enable(struct hdmi_pll_data *pll)
 	if (r)
 		return r;
 
-	r = hdmi_pll_config(pll);
-	if (r)
-		return r;
-
 	return 0;
 }