drm/armada: move variant initialisation to CRTC init

Move the variant initialisation entirely to the CRTC init function -
the variant support is really about the CRTC properties than the whole
system, and we want to treat each CRTC individually when we support DT.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/gpu/drm/armada/armada_510.c b/drivers/gpu/drm/armada/armada_510.c
index 59948ef..a9dabca 100644
--- a/drivers/gpu/drm/armada/armada_510.c
+++ b/drivers/gpu/drm/armada/armada_510.c
@@ -15,20 +15,19 @@
 #include "armada_drm.h"
 #include "armada_hw.h"
 
-static int armada510_init(struct armada_private *priv, struct device *dev)
+static int armada510_crtc_init(struct armada_crtc *dcrtc, struct device *dev)
 {
-	priv->extclk[0] = devm_clk_get(dev, "ext_ref_clk_1");
+	struct clk *clk;
 
-	if (IS_ERR(priv->extclk[0]) && PTR_ERR(priv->extclk[0]) == -ENOENT)
-		priv->extclk[0] = ERR_PTR(-EPROBE_DEFER);
+	clk = devm_clk_get(dev, "ext_ref_clk_1");
+	if (IS_ERR(clk))
+		return PTR_ERR(clk) == -ENOENT ? -EPROBE_DEFER : PTR_ERR(clk);
 
-	return PTR_RET(priv->extclk[0]);
-}
+	dcrtc->extclk[0] = clk;
 
-static int armada510_crtc_init(struct armada_crtc *dcrtc)
-{
 	/* Lower the watermark so to eliminate jitter at higher bandwidths */
 	armada_updatel(0x20, (1 << 11) | 0xff, dcrtc->base + LCD_CFG_RDREG4F);
+
 	return 0;
 }
 
@@ -45,8 +44,7 @@
 static int armada510_crtc_compute_clock(struct armada_crtc *dcrtc,
 	const struct drm_display_mode *mode, uint32_t *sclk)
 {
-	struct armada_private *priv = dcrtc->crtc.dev->dev_private;
-	struct clk *clk = priv->extclk[0];
+	struct clk *clk = dcrtc->extclk[0];
 	int ret;
 
 	if (dcrtc->num == 1)
@@ -81,7 +79,6 @@
 const struct armada_variant armada510_ops = {
 	.has_spu_adv_reg = true,
 	.spu_adv_reg = ADV_HWC32ENABLE | ADV_HWC32ARGB | ADV_HWC32BLEND,
-	.init = armada510_init,
 	.crtc_init = armada510_crtc_init,
 	.crtc_compute_clock = armada510_crtc_compute_clock,
 };