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Date:   Mon, 23 Jan 2017 19:05:15 +0800
From:   YT Shen <yt.shen@...iatek.com>
To:     <dri-devel@...ts.freedesktop.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        CK Hu <ck.hu@...iatek.com>
CC:     David Airlie <airlied@...ux.ie>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <yingjoe.chen@...iatek.com>,
        <emil.l.velikov@...il.com>, <thierry.reding@...il.com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        YT Shen <yt.shen@...iatek.com>
Subject: [PATCH v12 02/12] drm/mediatek: add helpers for coverting from the generic components

define helpers for converting from 'mtk_ddp_comp' to 'mtk_disp_ovl'
define helpers for converting from 'mtk_ddp_comp' to 'mtk_disp_rdma'

Signed-off-by: YT Shen <yt.shen@...iatek.com>
Acked-by: CK Hu <ck.hu@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c  | 15 +++++++++------
 drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 15 +++++++++------
 2 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index c703102..ce2759f 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -57,6 +57,11 @@ struct mtk_disp_ovl {
 	struct drm_crtc			*crtc;
 };
 
+static inline struct mtk_disp_ovl *comp_to_ovl(struct mtk_ddp_comp *comp)
+{
+	return container_of(comp, struct mtk_disp_ovl, ddp_comp);
+}
+
 static irqreturn_t mtk_disp_ovl_irq_handler(int irq, void *dev_id)
 {
 	struct mtk_disp_ovl *priv = dev_id;
@@ -76,20 +81,18 @@ static irqreturn_t mtk_disp_ovl_irq_handler(int irq, void *dev_id)
 static void mtk_ovl_enable_vblank(struct mtk_ddp_comp *comp,
 				  struct drm_crtc *crtc)
 {
-	struct mtk_disp_ovl *priv = container_of(comp, struct mtk_disp_ovl,
-						 ddp_comp);
+	struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
 
-	priv->crtc = crtc;
+	ovl->crtc = crtc;
 	writel(0x0, comp->regs + DISP_REG_OVL_INTSTA);
 	writel_relaxed(OVL_FME_CPL_INT, comp->regs + DISP_REG_OVL_INTEN);
 }
 
 static void mtk_ovl_disable_vblank(struct mtk_ddp_comp *comp)
 {
-	struct mtk_disp_ovl *priv = container_of(comp, struct mtk_disp_ovl,
-						 ddp_comp);
+	struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
 
-	priv->crtc = NULL;
+	ovl->crtc = NULL;
 	writel_relaxed(0x0, comp->regs + DISP_REG_OVL_INTEN);
 }
 
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 0df05f9..21eff6f 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -49,6 +49,11 @@ struct mtk_disp_rdma {
 	struct drm_crtc			*crtc;
 };
 
+static inline struct mtk_disp_rdma *comp_to_rdma(struct mtk_ddp_comp *comp)
+{
+	return container_of(comp, struct mtk_disp_rdma, ddp_comp);
+}
+
 static irqreturn_t mtk_disp_rdma_irq_handler(int irq, void *dev_id)
 {
 	struct mtk_disp_rdma *priv = dev_id;
@@ -77,20 +82,18 @@ static void rdma_update_bits(struct mtk_ddp_comp *comp, unsigned int reg,
 static void mtk_rdma_enable_vblank(struct mtk_ddp_comp *comp,
 				   struct drm_crtc *crtc)
 {
-	struct mtk_disp_rdma *priv = container_of(comp, struct mtk_disp_rdma,
-						  ddp_comp);
+	struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
 
-	priv->crtc = crtc;
+	rdma->crtc = crtc;
 	rdma_update_bits(comp, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT,
 			 RDMA_FRAME_END_INT);
 }
 
 static void mtk_rdma_disable_vblank(struct mtk_ddp_comp *comp)
 {
-	struct mtk_disp_rdma *priv = container_of(comp, struct mtk_disp_rdma,
-						  ddp_comp);
+	struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
 
-	priv->crtc = NULL;
+	rdma->crtc = NULL;
 	rdma_update_bits(comp, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT, 0);
 }
 
-- 
1.9.1

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