OMAP: DSS2: remove unneeded fck enable/disables

Now that the HWMOD fmwk handles the fcks of DSS modules properly, the
DSS driver no longer needs to explicitely enable/disable the fck.

This patch removes the enables/disables of fck from dispc, dsi and dss.
The clk_get(fck) is still needed there, as the modules need to know the
frequency of the clock.

For hdmi and venc this patch also removes the clk_get(fck), as they
don't need the clock at all.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/omap2/dss/dispc.c

@@ -3480,7 +3480,6 @@ static int omap_dispchw_remove(struct platform_device *pdev)
 static int dispc_runtime_suspend(struct device *dev)
 {
 	dispc_save_context();
-	clk_disable(dispc.dss_clk);
 	dss_runtime_put();
 
 	return 0;
@@ -3494,7 +3493,6 @@ static int dispc_runtime_resume(struct device *dev)
 	if (r < 0)
 		return r;
 
-	clk_enable(dispc.dss_clk);
 	dispc_restore_context();
 
 	return 0;

drivers/video/omap2/dss/dsi.c

@@ -4605,10 +4605,6 @@ static int omap_dsi1hw_remove(struct platform_device *dsidev)
 
 static int dsi_runtime_suspend(struct device *dev)
 {
-	struct dsi_data *dsi = dsi_get_dsidrv_data(to_platform_device(dev));
-
-	clk_disable(dsi->dss_clk);
-
 	dispc_runtime_put();
 	dss_runtime_put();
 
@@ -4617,7 +4613,6 @@ static int dsi_runtime_suspend(struct device *dev)
 
 static int dsi_runtime_resume(struct device *dev)
 {
-	struct dsi_data *dsi = dsi_get_dsidrv_data(to_platform_device(dev));
 	int r;
 
 	r = dss_runtime_get();
@@ -4628,8 +4623,6 @@ static int dsi_runtime_resume(struct device *dev)
 	if (r)
 		goto err_get_dispc;
 
-	clk_enable(dsi->dss_clk);
-
 	return 0;
 
 err_get_dispc:

drivers/video/omap2/dss/dss.c

@@ -819,13 +819,11 @@ static int omap_dsshw_remove(struct platform_device *pdev)
 static int dss_runtime_suspend(struct device *dev)
 {
 	dss_save_context();
-	clk_disable(dss.dss_clk);
 	return 0;
 }
 
 static int dss_runtime_resume(struct device *dev)
 {
-	clk_enable(dss.dss_clk);
 	dss_restore_context();
 	return 0;
 }

drivers/video/omap2/dss/hdmi.c

@@ -56,7 +56,6 @@ static struct {
 	struct hdmi_config cfg;
 
 	struct clk *sys_clk;
-	struct clk *hdmi_clk;
 } hdmi;
 
 /*
@@ -1704,24 +1703,13 @@ static int hdmi_get_clocks(struct platform_device *pdev)
 
 	hdmi.sys_clk = clk;
 
-	clk = clk_get(&pdev->dev, "fck");
-	if (IS_ERR(clk)) {
-		DSSERR("can't get fck\n");
-		clk_put(hdmi.sys_clk);
-		return PTR_ERR(clk);
-	}
-
-	hdmi.hdmi_clk = clk;
-
 	return 0;
 }
 
 static void hdmi_put_clocks(void)
 {
 	if (hdmi.sys_clk)
 		clk_put(hdmi.sys_clk);
-	if (hdmi.hdmi_clk)
-		clk_put(hdmi.hdmi_clk);
 }
 
 /* HDMI HW IP initialisation */
@@ -1792,7 +1780,6 @@ static int omapdss_hdmihw_remove(struct platform_device *pdev)
 
 static int hdmi_runtime_suspend(struct device *dev)
 {
-	clk_disable(hdmi.hdmi_clk);
 	clk_disable(hdmi.sys_clk);
 
 	dispc_runtime_put();
@@ -1815,7 +1802,6 @@ static int hdmi_runtime_resume(struct device *dev)
 
 
 	clk_enable(hdmi.sys_clk);
-	clk_enable(hdmi.hdmi_clk);
 
 	return 0;
 

drivers/video/omap2/dss/venc.c

@@ -295,7 +295,6 @@ static struct {
 	u32 wss_data;
 	struct regulator *vdda_dac_reg;
 
-	struct clk	*tv_clk;
 	struct clk	*tv_dac_clk;
 } venc;
 
@@ -732,19 +731,10 @@ static int venc_get_clocks(struct platform_device *pdev)
 {
 	struct clk *clk;
 
-	clk = clk_get(&pdev->dev, "fck");
-	if (IS_ERR(clk)) {
-		DSSERR("can't get fck\n");
-		return PTR_ERR(clk);
-	}
-
-	venc.tv_clk = clk;
-
 	if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK)) {
 		clk = clk_get(&pdev->dev, "tv_dac_clk");
 		if (IS_ERR(clk)) {
 			DSSERR("can't get tv_dac_clk\n");
-			clk_put(venc.tv_clk);
 			return PTR_ERR(clk);
 		}
 	} else {
@@ -758,8 +748,6 @@ static int venc_get_clocks(struct platform_device *pdev)
 
 static void venc_put_clocks(void)
 {
-	if (venc.tv_clk)
-		clk_put(venc.tv_clk);
 	if (venc.tv_dac_clk)
 		clk_put(venc.tv_dac_clk);
 }
@@ -835,7 +823,6 @@ static int venc_runtime_suspend(struct device *dev)
 {
 	if (venc.tv_dac_clk)
 		clk_disable(venc.tv_dac_clk);
-	clk_disable(venc.tv_clk);
 
 	dispc_runtime_put();
 	dss_runtime_put();
@@ -855,7 +842,6 @@ static int venc_runtime_resume(struct device *dev)
 	if (r < 0)
 		goto err_get_dispc;
 
-	clk_enable(venc.tv_clk);
 	if (venc.tv_dac_clk)
 		clk_enable(venc.tv_dac_clk);