Devicetree

* [PATCH 2/5] drm: zte: move struct vou_inf into zx_vou driver
From: Shawn Guo @ 2017-01-19 16:24 UTC (permalink / raw)
  To: dri-devel
  Cc: Mark Rutland, devicetree, Daniel Vetter, Baoyou Xie, Rob Herring,
	Jun Nie
In-Reply-To: <1484843100-16284-1-git-send-email-shawnguo@kernel.org>

From: Shawn Guo <shawn.guo@linaro.org>

Although data in struct vou_inf is defined per output device, it doesn't
belong to the device itself but VOU control module.  All these data can
just be defined in VOU driver, and output device driver only needs to
invoke VOU driver function with device ID to enable/disable specific
output device.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 drivers/gpu/drm/zte/zx_hdmi.c | 12 ++----------
 drivers/gpu/drm/zte/zx_vou.c  | 31 ++++++++++++++++++++++++-------
 drivers/gpu/drm/zte/zx_vou.h  | 11 ++---------
 3 files changed, 28 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/zte/zx_hdmi.c b/drivers/gpu/drm/zte/zx_hdmi.c
index 6bf6c364811e..2f1e278ab50e 100644
--- a/drivers/gpu/drm/zte/zx_hdmi.c
+++ b/drivers/gpu/drm/zte/zx_hdmi.c
@@ -53,13 +53,6 @@ struct zx_hdmi {
 
 #define to_zx_hdmi(x) container_of(x, struct zx_hdmi, x)
 
-static const struct vou_inf vou_inf_hdmi = {
-	.id = VOU_HDMI,
-	.data_sel = VOU_YUV444,
-	.clocks_en_bits = BIT(24) | BIT(18) | BIT(6),
-	.clocks_sel_bits = BIT(13) | BIT(2),
-};
-
 static inline u8 hdmi_readb(struct zx_hdmi *hdmi, u16 offset)
 {
 	return readl_relaxed(hdmi->mmio + offset * 4);
@@ -238,14 +231,14 @@ static void zx_hdmi_encoder_enable(struct drm_encoder *encoder)
 
 	zx_hdmi_hw_enable(hdmi);
 
-	vou_inf_enable(hdmi->inf, encoder->crtc);
+	vou_inf_enable(VOU_HDMI, encoder->crtc);
 }
 
 static void zx_hdmi_encoder_disable(struct drm_encoder *encoder)
 {
 	struct zx_hdmi *hdmi = to_zx_hdmi(encoder);
 
-	vou_inf_disable(hdmi->inf, encoder->crtc);
+	vou_inf_disable(VOU_HDMI, encoder->crtc);
 
 	zx_hdmi_hw_disable(hdmi);
 
@@ -523,7 +516,6 @@ static int zx_hdmi_bind(struct device *dev, struct device *master, void *data)
 
 	hdmi->dev = dev;
 	hdmi->drm = drm;
-	hdmi->inf = &vou_inf_hdmi;
 
 	dev_set_drvdata(dev, hdmi);
 
diff --git a/drivers/gpu/drm/zte/zx_vou.c b/drivers/gpu/drm/zte/zx_vou.c
index 8c4f0e2885f3..c48704b4425a 100644
--- a/drivers/gpu/drm/zte/zx_vou.c
+++ b/drivers/gpu/drm/zte/zx_vou.c
@@ -158,6 +158,21 @@ struct zx_vou_hw {
 	struct zx_crtc *aux_crtc;
 };
 
+struct vou_inf {
+	enum vou_inf_id id;
+	enum vou_inf_data_sel data_sel;
+	u32 clocks_en_bits;
+	u32 clocks_sel_bits;
+};
+
+static struct vou_inf vou_infs[] = {
+	[VOU_HDMI] = {
+		.data_sel = VOU_YUV444,
+		.clocks_en_bits = BIT(24) | BIT(18) | BIT(6),
+		.clocks_sel_bits = BIT(13) | BIT(2),
+	},
+};
+
 static inline struct zx_vou_hw *crtc_to_vou(struct drm_crtc *crtc)
 {
 	struct zx_crtc *zcrtc = to_zx_crtc(crtc);
@@ -165,20 +180,21 @@ static inline struct zx_vou_hw *crtc_to_vou(struct drm_crtc *crtc)
 	return zcrtc->vou;
 }
 
-void vou_inf_enable(const struct vou_inf *inf, struct drm_crtc *crtc)
+void vou_inf_enable(enum vou_inf_id id, struct drm_crtc *crtc)
 {
 	struct zx_crtc *zcrtc = to_zx_crtc(crtc);
 	struct zx_vou_hw *vou = zcrtc->vou;
+	struct vou_inf *inf = &vou_infs[id];
 	bool is_main = zcrtc->chn_type == VOU_CHN_MAIN;
-	u32 data_sel_shift = inf->id << 1;
+	u32 data_sel_shift = id << 1;
 
 	/* Select data format */
 	zx_writel_mask(vou->vouctl + VOU_INF_DATA_SEL, 0x3 << data_sel_shift,
 		       inf->data_sel << data_sel_shift);
 
 	/* Select channel */
-	zx_writel_mask(vou->vouctl + VOU_INF_CH_SEL, 0x1 << inf->id,
-		       zcrtc->chn_type << inf->id);
+	zx_writel_mask(vou->vouctl + VOU_INF_CH_SEL, 0x1 << id,
+		       zcrtc->chn_type << id);
 
 	/* Select interface clocks */
 	zx_writel_mask(vou->vouctl + VOU_CLK_SEL, inf->clocks_sel_bits,
@@ -189,15 +205,16 @@ void vou_inf_enable(const struct vou_inf *inf, struct drm_crtc *crtc)
 		       inf->clocks_en_bits);
 
 	/* Enable the device */
-	zx_writel_mask(vou->vouctl + VOU_INF_EN, 1 << inf->id, 1 << inf->id);
+	zx_writel_mask(vou->vouctl + VOU_INF_EN, 1 << id, 1 << id);
 }
 
-void vou_inf_disable(const struct vou_inf *inf, struct drm_crtc *crtc)
+void vou_inf_disable(enum vou_inf_id id, struct drm_crtc *crtc)
 {
 	struct zx_vou_hw *vou = crtc_to_vou(crtc);
+	struct vou_inf *inf = &vou_infs[id];
 
 	/* Disable the device */
-	zx_writel_mask(vou->vouctl + VOU_INF_EN, 1 << inf->id, 0);
+	zx_writel_mask(vou->vouctl + VOU_INF_EN, 1 << id, 0);
 
 	/* Disable interface clocks */
 	zx_writel_mask(vou->vouctl + VOU_CLK_EN, inf->clocks_en_bits, 0);
diff --git a/drivers/gpu/drm/zte/zx_vou.h b/drivers/gpu/drm/zte/zx_vou.h
index 4b4339be641b..a41a0ad49857 100644
--- a/drivers/gpu/drm/zte/zx_vou.h
+++ b/drivers/gpu/drm/zte/zx_vou.h
@@ -30,15 +30,8 @@ enum vou_inf_data_sel {
 	VOU_RGB_666	= 3,
 };
 
-struct vou_inf {
-	enum vou_inf_id id;
-	enum vou_inf_data_sel data_sel;
-	u32 clocks_en_bits;
-	u32 clocks_sel_bits;
-};
-
-void vou_inf_enable(const struct vou_inf *inf, struct drm_crtc *crtc);
-void vou_inf_disable(const struct vou_inf *inf, struct drm_crtc *crtc);
+void vou_inf_enable(enum vou_inf_id id, struct drm_crtc *crtc);
+void vou_inf_disable(enum vou_inf_id id, struct drm_crtc *crtc);
 
 int zx_vou_enable_vblank(struct drm_device *drm, unsigned int pipe);
 void zx_vou_disable_vblank(struct drm_device *drm, unsigned int pipe);
-- 
1.9.1

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