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From: Archit Taneja <architt@codeaurora.org>
To: robdclark@gmail.com
Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Archit Taneja <architt@codeaurora.org>
Subject: [PATCH 4/6] drm/msm/mdp5: Create single encoder per interface (INTF)
Date: Mon, 19 Dec 2016 15:34:08 +0530	[thread overview]
Message-ID: <1482141850-23393-5-git-send-email-architt@codeaurora.org> (raw)
In-Reply-To: <1482141850-23393-1-git-send-email-architt@codeaurora.org>

For the DSI interfaces, the mdp5_kms core creates 2 encoders for video
and command modes.

Create only a single encoder per interface. When creating the encoder, set
the interface type to MDP5_INTF_MODE_NONE. It's the bridge (DSI/HDMI/eDP)
driver's responsibility to set a different interface type. It can use the
the kms func op set_encoder_mode to change the mode of operation, which
in turn would configure the interface type for the INTF.

In mdp5_cmd_encoder.c, we remove the redundant code, and make the commmand
mode funcs as helpers that are used in mdp5_encoder.c

Signed-off-by: Archit Taneja <architt@codeaurora.org>
---
 drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c | 135 +++---------------------
 drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c     |  35 +++---
 drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c         |  20 ++--
 drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h         |  32 ++++--
 4 files changed, 66 insertions(+), 156 deletions(-)

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c
index c627ab6..df1c8ad 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c
@@ -16,16 +16,6 @@
 #include "drm_crtc.h"
 #include "drm_crtc_helper.h"
 
-struct mdp5_cmd_encoder {
-	struct drm_encoder base;
-	struct mdp5_interface intf;
-	bool enabled;
-	uint32_t bsc;
-
-	struct mdp5_ctl *ctl;
-};
-#define to_mdp5_cmd_encoder(x) container_of(x, struct mdp5_cmd_encoder, base)
-
 static struct mdp5_kms *get_kms(struct drm_encoder *encoder)
 {
 	struct msm_drm_private *priv = encoder->dev->dev_private;
@@ -36,47 +26,8 @@ static struct mdp5_kms *get_kms(struct drm_encoder *encoder)
 #include <mach/board.h>
 #include <linux/msm-bus.h>
 #include <linux/msm-bus-board.h>
-#define MDP_BUS_VECTOR_ENTRY(ab_val, ib_val)		\
-	{						\
-		.src = MSM_BUS_MASTER_MDP_PORT0,	\
-		.dst = MSM_BUS_SLAVE_EBI_CH0,		\
-		.ab = (ab_val),				\
-		.ib = (ib_val),				\
-	}
-
-static struct msm_bus_vectors mdp_bus_vectors[] = {
-	MDP_BUS_VECTOR_ENTRY(0, 0),
-	MDP_BUS_VECTOR_ENTRY(2000000000, 2000000000),
-};
-static struct msm_bus_paths mdp_bus_usecases[] = { {
-		.num_paths = 1,
-		.vectors = &mdp_bus_vectors[0],
-}, {
-		.num_paths = 1,
-		.vectors = &mdp_bus_vectors[1],
-} };
-static struct msm_bus_scale_pdata mdp_bus_scale_table = {
-	.usecase = mdp_bus_usecases,
-	.num_usecases = ARRAY_SIZE(mdp_bus_usecases),
-	.name = "mdss_mdp",
-};
-
-static void bs_init(struct mdp5_cmd_encoder *mdp5_cmd_enc)
-{
-	mdp5_cmd_enc->bsc = msm_bus_scale_register_client(
-			&mdp_bus_scale_table);
-	DBG("bus scale client: %08x", mdp5_cmd_enc->bsc);
-}
-
-static void bs_fini(struct mdp5_cmd_encoder *mdp5_cmd_enc)
-{
-	if (mdp5_cmd_enc->bsc) {
-		msm_bus_scale_unregister_client(mdp5_cmd_enc->bsc);
-		mdp5_cmd_enc->bsc = 0;
-	}
-}
 
-static void bs_set(struct mdp5_cmd_encoder *mdp5_cmd_enc, int idx)
+static void bs_set(struct mdp5_encoder *mdp5_cmd_enc, int idx)
 {
 	if (mdp5_cmd_enc->bsc) {
 		DBG("set bus scaling: %d", idx);
@@ -89,14 +40,12 @@ static void bs_set(struct mdp5_cmd_encoder *mdp5_cmd_enc, int idx)
 	}
 }
 #else
-static void bs_init(struct mdp5_cmd_encoder *mdp5_cmd_enc) {}
-static void bs_fini(struct mdp5_cmd_encoder *mdp5_cmd_enc) {}
-static void bs_set(struct mdp5_cmd_encoder *mdp5_cmd_enc, int idx) {}
+static void bs_set(struct mdp5_encoder *mdp5_cmd_enc, int idx) {}
 #endif
 
 #define VSYNC_CLK_RATE 19200000
 static int pingpong_tearcheck_setup(struct drm_encoder *encoder,
-					struct drm_display_mode *mode)
+				    struct drm_display_mode *mode)
 {
 	struct mdp5_kms *mdp5_kms = get_kms(encoder);
 	struct device *dev = encoder->dev->dev;
@@ -176,23 +125,11 @@ static void pingpong_tearcheck_disable(struct drm_encoder *encoder)
 	clk_disable_unprepare(mdp5_kms->vsync_clk);
 }
 
-static void mdp5_cmd_encoder_destroy(struct drm_encoder *encoder)
-{
-	struct mdp5_cmd_encoder *mdp5_cmd_enc = to_mdp5_cmd_encoder(encoder);
-	bs_fini(mdp5_cmd_enc);
-	drm_encoder_cleanup(encoder);
-	kfree(mdp5_cmd_enc);
-}
-
-static const struct drm_encoder_funcs mdp5_cmd_encoder_funcs = {
-	.destroy = mdp5_cmd_encoder_destroy,
-};
-
-static void mdp5_cmd_encoder_mode_set(struct drm_encoder *encoder,
-		struct drm_display_mode *mode,
-		struct drm_display_mode *adjusted_mode)
+void mdp5_cmd_encoder_mode_set(struct drm_encoder *encoder,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode)
 {
-	struct mdp5_cmd_encoder *mdp5_cmd_enc = to_mdp5_cmd_encoder(encoder);
+	struct mdp5_encoder *mdp5_cmd_enc = to_mdp5_encoder(encoder);
 
 	mode = adjusted_mode;
 
@@ -209,9 +146,9 @@ static void mdp5_cmd_encoder_mode_set(struct drm_encoder *encoder,
 				mdp5_cmd_enc->ctl);
 }
 
-static void mdp5_cmd_encoder_disable(struct drm_encoder *encoder)
+void mdp5_cmd_encoder_disable(struct drm_encoder *encoder)
 {
-	struct mdp5_cmd_encoder *mdp5_cmd_enc = to_mdp5_cmd_encoder(encoder);
+	struct mdp5_encoder *mdp5_cmd_enc = to_mdp5_encoder(encoder);
 	struct mdp5_ctl *ctl = mdp5_cmd_enc->ctl;
 	struct mdp5_interface *intf = &mdp5_cmd_enc->intf;
 
@@ -228,9 +165,9 @@ static void mdp5_cmd_encoder_disable(struct drm_encoder *encoder)
 	mdp5_cmd_enc->enabled = false;
 }
 
-static void mdp5_cmd_encoder_enable(struct drm_encoder *encoder)
+void mdp5_cmd_encoder_enable(struct drm_encoder *encoder)
 {
-	struct mdp5_cmd_encoder *mdp5_cmd_enc = to_mdp5_cmd_encoder(encoder);
+	struct mdp5_encoder *mdp5_cmd_enc = to_mdp5_encoder(encoder);
 	struct mdp5_ctl *ctl = mdp5_cmd_enc->ctl;
 	struct mdp5_interface *intf = &mdp5_cmd_enc->intf;
 
@@ -248,16 +185,10 @@ static void mdp5_cmd_encoder_enable(struct drm_encoder *encoder)
 	mdp5_cmd_enc->enabled = true;
 }
 
-static const struct drm_encoder_helper_funcs mdp5_cmd_encoder_helper_funcs = {
-	.mode_set = mdp5_cmd_encoder_mode_set,
-	.disable = mdp5_cmd_encoder_disable,
-	.enable = mdp5_cmd_encoder_enable,
-};
-
 int mdp5_cmd_encoder_set_split_display(struct drm_encoder *encoder,
-					struct drm_encoder *slave_encoder)
+				       struct drm_encoder *slave_encoder)
 {
-	struct mdp5_cmd_encoder *mdp5_cmd_enc = to_mdp5_cmd_encoder(encoder);
+	struct mdp5_encoder *mdp5_cmd_enc = to_mdp5_encoder(encoder);
 	struct mdp5_kms *mdp5_kms;
 	int intf_num;
 	u32 data = 0;
@@ -292,43 +223,3 @@ int mdp5_cmd_encoder_set_split_display(struct drm_encoder *encoder,
 
 	return 0;
 }
-
-/* initialize command mode encoder */
-struct drm_encoder *mdp5_cmd_encoder_init(struct drm_device *dev,
-			struct mdp5_interface *intf, struct mdp5_ctl *ctl)
-{
-	struct drm_encoder *encoder = NULL;
-	struct mdp5_cmd_encoder *mdp5_cmd_enc;
-	int ret;
-
-	if (WARN_ON((intf->type != INTF_DSI) &&
-		(intf->mode != MDP5_INTF_DSI_MODE_COMMAND))) {
-		ret = -EINVAL;
-		goto fail;
-	}
-
-	mdp5_cmd_enc = kzalloc(sizeof(*mdp5_cmd_enc), GFP_KERNEL);
-	if (!mdp5_cmd_enc) {
-		ret = -ENOMEM;
-		goto fail;
-	}
-
-	memcpy(&mdp5_cmd_enc->intf, intf, sizeof(mdp5_cmd_enc->intf));
-	encoder = &mdp5_cmd_enc->base;
-	mdp5_cmd_enc->ctl = ctl;
-
-	drm_encoder_init(dev, encoder, &mdp5_cmd_encoder_funcs,
-			DRM_MODE_ENCODER_DSI, NULL);
-
-	drm_encoder_helper_add(encoder, &mdp5_cmd_encoder_helper_funcs);
-
-	bs_init(mdp5_cmd_enc);
-
-	return encoder;
-
-fail:
-	if (encoder)
-		mdp5_cmd_encoder_destroy(encoder);
-
-	return ERR_PTR(ret);
-}
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
index 63f4135..80fa482 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
@@ -21,17 +21,6 @@
 #include "drm_crtc.h"
 #include "drm_crtc_helper.h"
 
-struct mdp5_encoder {
-	struct drm_encoder base;
-	struct mdp5_interface intf;
-	spinlock_t intf_lock;	/* protect REG_MDP5_INTF_* registers */
-	bool enabled;
-	uint32_t bsc;
-
-	struct mdp5_ctl *ctl;
-};
-#define to_mdp5_encoder(x) container_of(x, struct mdp5_encoder, base)
-
 static struct mdp5_kms *get_kms(struct drm_encoder *encoder)
 {
 	struct msm_drm_private *priv = encoder->dev->dev_private;
@@ -283,17 +272,35 @@ static void mdp5_encoder_mode_set(struct drm_encoder *encoder,
 				  struct drm_display_mode *mode,
 				  struct drm_display_mode *adjusted_mode)
 {
-	mdp5_vid_encoder_mode_set(encoder, mode, adjusted_mode);
+	struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
+	struct mdp5_interface *intf = &mdp5_encoder->intf;
+
+	if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
+		mdp5_cmd_encoder_mode_set(encoder, mode, adjusted_mode);
+	else
+		mdp5_vid_encoder_mode_set(encoder, mode, adjusted_mode);
 }
 
 static void mdp5_encoder_disable(struct drm_encoder *encoder)
 {
-	mdp5_vid_encoder_disable(encoder);
+	struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
+	struct mdp5_interface *intf = &mdp5_encoder->intf;
+
+	if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
+		mdp5_cmd_encoder_disable(encoder);
+	else
+		mdp5_vid_encoder_disable(encoder);
 }
 
 static void mdp5_encoder_enable(struct drm_encoder *encoder)
 {
-	mdp5_vid_encoder_enable(encoder);
+	struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
+	struct mdp5_interface *intf = &mdp5_encoder->intf;
+
+	if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
+		mdp5_cmd_encoder_disable(encoder);
+	else
+		mdp5_vid_encoder_enable(encoder);
 }
 
 static const struct drm_encoder_helper_funcs mdp5_encoder_helper_funcs = {
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index 27f67eb..646f160 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -282,7 +282,7 @@ int mdp5_enable(struct mdp5_kms *mdp5_kms)
 
 static struct drm_encoder *construct_encoder(struct mdp5_kms *mdp5_kms,
 		enum mdp5_intf_type intf_type, int intf_num,
-		enum mdp5_intf_mode intf_mode, struct mdp5_ctl *ctl)
+		struct mdp5_ctl *ctl)
 {
 	struct drm_device *dev = mdp5_kms->dev;
 	struct msm_drm_private *priv = dev->dev_private;
@@ -290,15 +290,10 @@ static struct drm_encoder *construct_encoder(struct mdp5_kms *mdp5_kms,
 	struct mdp5_interface intf = {
 			.num	= intf_num,
 			.type	= intf_type,
-			.mode	= intf_mode,
+			.mode	= MDP5_INTF_MODE_NONE,
 	};
 
-	if ((intf_type == INTF_DSI) &&
-		(intf_mode == MDP5_INTF_DSI_MODE_COMMAND))
-		encoder = mdp5_cmd_encoder_init(dev, &intf, ctl);
-	else
-		encoder = mdp5_encoder_init(dev, &intf, ctl);
-
+	encoder = mdp5_encoder_init(dev, &intf, ctl);
 	if (IS_ERR(encoder)) {
 		dev_err(dev->dev, "failed to construct encoder\n");
 		return encoder;
@@ -353,8 +348,7 @@ static int modeset_init_intf(struct mdp5_kms *mdp5_kms, int intf_num)
 			break;
 		}
 
-		encoder = construct_encoder(mdp5_kms, INTF_eDP, intf_num,
-					MDP5_INTF_MODE_NONE, ctl);
+		encoder = construct_encoder(mdp5_kms, INTF_eDP, intf_num, ctl);
 		if (IS_ERR(encoder)) {
 			ret = PTR_ERR(encoder);
 			break;
@@ -372,8 +366,7 @@ static int modeset_init_intf(struct mdp5_kms *mdp5_kms, int intf_num)
 			break;
 		}
 
-		encoder = construct_encoder(mdp5_kms, INTF_HDMI, intf_num,
-					MDP5_INTF_MODE_NONE, ctl);
+		encoder = construct_encoder(mdp5_kms, INTF_HDMI, intf_num, ctl);
 		if (IS_ERR(encoder)) {
 			ret = PTR_ERR(encoder);
 			break;
@@ -401,8 +394,7 @@ static int modeset_init_intf(struct mdp5_kms *mdp5_kms, int intf_num)
 			break;
 		}
 
-		encoder = construct_encoder(mdp5_kms, INTF_DSI, intf_num,
-					MDP5_INTF_DSI_MODE_VIDEO, ctl);
+		encoder = construct_encoder(mdp5_kms, INTF_DSI, intf_num, ctl);
 		if (IS_ERR(encoder)) {
 			ret = PTR_ERR(encoder);
 			break;
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
index d720d66..9d22ff4 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
@@ -128,6 +128,17 @@ struct mdp5_interface {
 	enum mdp5_intf_mode mode;
 };
 
+struct mdp5_encoder {
+	struct drm_encoder base;
+	struct mdp5_interface intf;
+	spinlock_t intf_lock;	/* protect REG_MDP5_INTF_* registers */
+	bool enabled;
+	uint32_t bsc;
+
+	struct mdp5_ctl *ctl;
+};
+#define to_mdp5_encoder(x) container_of(x, struct mdp5_encoder, base)
+
 static inline void mdp5_write(struct mdp5_kms *mdp5_kms, u32 reg, u32 data)
 {
 	msm_writel(data, mdp5_kms->mmio + reg);
@@ -255,15 +266,24 @@ int mdp5_vid_encoder_set_split_display(struct drm_encoder *encoder,
 u32 mdp5_encoder_get_framecount(struct drm_encoder *encoder);
 
 #ifdef CONFIG_DRM_MSM_DSI
-struct drm_encoder *mdp5_cmd_encoder_init(struct drm_device *dev,
-		struct mdp5_interface *intf, struct mdp5_ctl *ctl);
+void mdp5_cmd_encoder_mode_set(struct drm_encoder *encoder,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode);
+void mdp5_cmd_encoder_disable(struct drm_encoder *encoder);
+void mdp5_cmd_encoder_enable(struct drm_encoder *encoder);
 int mdp5_cmd_encoder_set_split_display(struct drm_encoder *encoder,
-					struct drm_encoder *slave_encoder);
+				       struct drm_encoder *slave_encoder);
 #else
-static inline struct drm_encoder *mdp5_cmd_encoder_init(struct drm_device *dev,
-		struct mdp5_interface *intf, struct mdp5_ctl *ctl)
+static inline void mdp5_cmd_encoder_mode_set(struct drm_encoder *encoder,
+					     struct drm_display_mode *mode,
+					     struct drm_display_mode *adjusted_mode)
+{
+}
+static inline void mdp5_cmd_encoder_disable(struct drm_encoder *encoder)
+{
+}
+static inline void mdp5_cmd_encoder_enable(struct drm_encoder *encoder)
 {
-	return ERR_PTR(-EINVAL);
 }
 static inline int mdp5_cmd_encoder_set_split_display(
 	struct drm_encoder *encoder, struct drm_encoder *slave_encoder)
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

  parent reply	other threads:[~2016-12-19 10:04 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-19 10:04 [PATCH 0/6] drm/msm/mdp5: Encoder related cleanups Archit Taneja
2016-12-19 10:04 ` [PATCH 1/6] drm/msm: Construct only one encoder for DSI Archit Taneja
2016-12-19 10:04 ` [PATCH 2/6] drm/msm: Set encoder's mode of operation using a kms func Archit Taneja
2016-12-19 10:04 ` [PATCH 3/6] drm/msm/mdp5: Prepare for merging video and command encoders Archit Taneja
2016-12-19 10:04 ` Archit Taneja [this message]
2016-12-19 10:04 ` [PATCH 5/6] drm/msm/mdp5: cfg: Change count to unsigned int Archit Taneja
2016-12-19 10:04 ` [PATCH 6/6] drm/msm/mdp5: Create only as many CRTCs as we need Archit Taneja
2017-01-17  4:06 ` [PATCH v2 0/6] drm/msm/mdp5: Encoder related cleanups Archit Taneja
2017-01-17  4:06   ` [PATCH v2 1/6] drm/msm: Construct only one encoder for DSI Archit Taneja
2017-01-17  4:06   ` [PATCH v2 2/6] drm/msm: Set encoder's mode of operation using a kms func Archit Taneja
2017-01-17  4:06   ` [PATCH v2 3/6] drm/msm/mdp5: Prepare for merging video and command encoders Archit Taneja
2017-01-17  4:06   ` [PATCH v2 4/6] drm/msm/mdp5: Create single encoder per interface (INTF) Archit Taneja
2017-01-17  4:06   ` [PATCH v2 5/6] drm/msm/mdp5: cfg: Change count to unsigned int Archit Taneja
2017-01-17  4:06   ` [PATCH v2 6/6] drm/msm/mdp5: Create only as many CRTCs as we need Archit Taneja

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