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From: Yuti Amonkar <yamonkar@cadence.com>
To: <linux-kernel@vger.kernel.org>, <dri-devel@lists.freedesktop.org>,
	<maxime@cerno.tech>, <airlied@linux.ie>, <daniel@ffwll.ch>,
	<mark.rutland@arm.com>, <a.hajda@samsung.com>,
	<narmstrong@baylibre.com>, <Laurent.pinchart@ideasonboard.com>,
	<jonas@kwiboo.se>, <jernej.skrabec@siol.net>
Cc: <nsekhar@ti.com>, <jsarha@ti.com>, <tomi.valkeinen@ti.com>,
	<nikhil.nd@ti.com>, <mparab@cadence.com>, <sjakhade@cadence.com>,
	<yamonkar@cadence.com>
Subject: [PATCH v1 1/4] drm: bridge: cdns-mhdp8546: Add output bus format negotiation
Date: Fri, 13 Nov 2020 10:46:31 +0100	[thread overview]
Message-ID: <1605260794-29806-2-git-send-email-yamonkar@cadence.com> (raw)
In-Reply-To: <1605260794-29806-1-git-send-email-yamonkar@cadence.com>

This patch adds minimal output bus format negotiation support.
Currently we are adding support for only MEDIA_BUS_FMT_FIXED.

Signed-off-by: Yuti Amonkar <yamonkar@cadence.com>
---
 .../drm/bridge/cadence/cdns-mhdp8546-core.c    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
index 6beccd2a408e..bdb0d95aa412 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
@@ -2102,6 +2102,23 @@ static u32 *cdns_mhdp_get_input_bus_fmts(struct drm_bridge *bridge,
 	return input_fmts;
 }
 
+static u32 *cdns_mhdp_get_output_bus_fmts(struct drm_bridge *bridge,
+					  struct drm_bridge_state *bridge_state,
+					  struct drm_crtc_state *crtc_state,
+					  struct drm_connector_state *conn_state,
+					  unsigned int *num_output_fmts)
+{
+	u32 *output_fmts;
+
+	output_fmts = kzalloc(sizeof(*output_fmts), GFP_KERNEL);
+	if (!output_fmts)
+		return NULL;
+
+	*num_output_fmts = 1;
+	output_fmts[0] = MEDIA_BUS_FMT_FIXED;
+	return output_fmts;
+}
+
 static int cdns_mhdp_atomic_check(struct drm_bridge *bridge,
 				  struct drm_bridge_state *bridge_state,
 				  struct drm_crtc_state *crtc_state,
@@ -2170,6 +2187,7 @@ static const struct drm_bridge_funcs cdns_mhdp_bridge_funcs = {
 	.atomic_destroy_state = cdns_mhdp_bridge_atomic_destroy_state,
 	.atomic_reset = cdns_mhdp_bridge_atomic_reset,
 	.atomic_get_input_bus_fmts = cdns_mhdp_get_input_bus_fmts,
+	.atomic_get_output_bus_fmts = cdns_mhdp_get_output_bus_fmts,
 	.detect = cdns_mhdp_bridge_detect,
 	.get_edid = cdns_mhdp_bridge_get_edid,
 	.hpd_enable = cdns_mhdp_bridge_hpd_enable,
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Yuti Amonkar <yamonkar@cadence.com>
To: <linux-kernel@vger.kernel.org>, <dri-devel@lists.freedesktop.org>,
	<maxime@cerno.tech>, <airlied@linux.ie>, <daniel@ffwll.ch>,
	<mark.rutland@arm.com>, <a.hajda@samsung.com>,
	<narmstrong@baylibre.com>, <Laurent.pinchart@ideasonboard.com>,
	<jonas@kwiboo.se>, <jernej.skrabec@siol.net>
Cc: mparab@cadence.com, yamonkar@cadence.com, nsekhar@ti.com,
	jsarha@ti.com, tomi.valkeinen@ti.com, sjakhade@cadence.com,
	nikhil.nd@ti.com
Subject: [PATCH v1 1/4] drm: bridge: cdns-mhdp8546: Add output bus format negotiation
Date: Fri, 13 Nov 2020 10:46:31 +0100	[thread overview]
Message-ID: <1605260794-29806-2-git-send-email-yamonkar@cadence.com> (raw)
In-Reply-To: <1605260794-29806-1-git-send-email-yamonkar@cadence.com>

This patch adds minimal output bus format negotiation support.
Currently we are adding support for only MEDIA_BUS_FMT_FIXED.

Signed-off-by: Yuti Amonkar <yamonkar@cadence.com>
---
 .../drm/bridge/cadence/cdns-mhdp8546-core.c    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
index 6beccd2a408e..bdb0d95aa412 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
@@ -2102,6 +2102,23 @@ static u32 *cdns_mhdp_get_input_bus_fmts(struct drm_bridge *bridge,
 	return input_fmts;
 }
 
+static u32 *cdns_mhdp_get_output_bus_fmts(struct drm_bridge *bridge,
+					  struct drm_bridge_state *bridge_state,
+					  struct drm_crtc_state *crtc_state,
+					  struct drm_connector_state *conn_state,
+					  unsigned int *num_output_fmts)
+{
+	u32 *output_fmts;
+
+	output_fmts = kzalloc(sizeof(*output_fmts), GFP_KERNEL);
+	if (!output_fmts)
+		return NULL;
+
+	*num_output_fmts = 1;
+	output_fmts[0] = MEDIA_BUS_FMT_FIXED;
+	return output_fmts;
+}
+
 static int cdns_mhdp_atomic_check(struct drm_bridge *bridge,
 				  struct drm_bridge_state *bridge_state,
 				  struct drm_crtc_state *crtc_state,
@@ -2170,6 +2187,7 @@ static const struct drm_bridge_funcs cdns_mhdp_bridge_funcs = {
 	.atomic_destroy_state = cdns_mhdp_bridge_atomic_destroy_state,
 	.atomic_reset = cdns_mhdp_bridge_atomic_reset,
 	.atomic_get_input_bus_fmts = cdns_mhdp_get_input_bus_fmts,
+	.atomic_get_output_bus_fmts = cdns_mhdp_get_output_bus_fmts,
 	.detect = cdns_mhdp_bridge_detect,
 	.get_edid = cdns_mhdp_bridge_get_edid,
 	.hpd_enable = cdns_mhdp_bridge_hpd_enable,
-- 
2.17.1

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  reply	other threads:[~2020-11-13  9:47 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-13  9:46 [PATCH v1 0/4] Add bus format negotiation support for Cadence MHDP8546 driver Yuti Amonkar
2020-11-13  9:46 ` Yuti Amonkar
2020-11-13  9:46 ` Yuti Amonkar [this message]
2020-11-13  9:46   ` [PATCH v1 1/4] drm: bridge: cdns-mhdp8546: Add output bus format negotiation Yuti Amonkar
2020-11-13  9:46 ` [PATCH v1 2/4] drm: bridge: cdns-mhdp8546: Modify atomic_get_input_bus_format bridge function Yuti Amonkar
2020-11-13  9:46   ` Yuti Amonkar
2020-11-13  9:46 ` [PATCH v1 3/4] drm: bridge: cdns-mhdp8546: Remove setting of bus format using connector info Yuti Amonkar
2020-11-13  9:46   ` Yuti Amonkar
2020-11-13  9:46 ` [PATCH v1 4/4] drm: bridge: cdns-mhdp8546: Retrieve the pixel format and bpc based on bus format Yuti Amonkar
2020-11-13  9:46   ` Yuti Amonkar
2020-11-16 14:14 ` [PATCH v1 0/4] Add bus format negotiation support for Cadence MHDP8546 driver Tomi Valkeinen
2020-11-16 14:14   ` Tomi Valkeinen

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