Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Received-SPF: Pass (protection.outlook.com: domain of cadence.com designates
 199.43.4.23 as permitted sender) receiver=protection.outlook.com;
 client-ip=199.43.4.23; helo=rmmaillnx1.cadence.com;
X-CrossPremisesHeadersFilteredBySendConnector: maileu3.global.cadence.com
Received: from maileu3.global.cadence.com (10.160.88.99) by
 maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id
 15.0.1367.3; Thu, 3 Dec 2020 15:03:14 +0100
Received: from vleu-orange.cadence.com (10.160.88.83) by
 maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id
 15.0.1367.3 via Frontend Transport; Thu, 3 Dec 2020 15:03:14 +0100
Received: from vleu-orange.cadence.com (localhost.localdomain [127.0.0.1])
        by vleu-orange.cadence.com (8.14.4/8.14.4) with ESMTP id 0B3E3E27022341;
        Thu, 3 Dec 2020 15:03:14 +0100
Received: (from yamonkar@localhost)
        by vleu-orange.cadence.com (8.14.4/8.14.4/Submit) id 0B3E3ECU022340;
        Thu, 3 Dec 2020 15:03:14 +0100
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 v3 1/3] drm: bridge: cdns-mhdp8546: Modify atomic_get_input_bus_format bridge function
Date:   Thu, 3 Dec 2020 15:03:09 +0100
Message-ID: <1607004191-22294-2-git-send-email-yamonkar@cadence.com>
X-Mailer: git-send-email 2.4.5
In-Reply-To: <1607004191-22294-1-git-send-email-yamonkar@cadence.com>
References: <1607004191-22294-1-git-send-email-yamonkar@cadence.com>
MIME-Version: 1.0
Content-Type: text/plain
X-OrganizationHeadersPreserved: maileu3.global.cadence.com
X-EOPAttributedMessage: 0
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id: 3b3ee1fd-b965-4e89-866c-08d8979431e6
X-MS-TrafficTypeDiagnostic: DM6PR07MB6476:
X-Microsoft-Antispam-PRVS: <DM6PR07MB6476643ABEF1D6549D761C39D2F20@DM6PR07MB6476.namprd07.prod.outlook.com>
X-MS-Oob-TLC-OOBClassifiers: OLM:334;
X-MS-Exchange-SenderADCheck: 1
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: ewx51zdaieraCkE7sfktrHARvx0O0jknpVdNoCrUXdMj/jrP3oM2MzcT2UtI16klgs2mUB6edJgSad4FO95/xVAhkbpqdoHvceVn49QdvZLpkFzcQJZZr47GD4N2iwy5T2olhyz1HHpNMYGM/be2H8+9kI2nnNTz8A9Vf5mkIQPSeY9XFllfS1DHlfZOian6Nv7iM2xbpNqaK8v3BR4/NUJ5I/Kjeo5WuJEOSbjqlyK+FobSds8FEUbLeooZzFgzrAksOE0FD4pRhOLH4i0/aHBfPI3S3t/WwUopVQb2yw+tWWWUK+h06/+6FqE648mgHcEKmIlFdNryx8mOUG0kpixrOH0dRYwsGZr6aHg6uOvLCRPQm7znEqZFirrzDctb8SL3PaOmgJHaKS773cg3G8KX5dMdTImEV1FecQ4W7z6WiIQuLMmTYVg5FezqEGUUhdWfy8YJ2zsXtxiWL+pwmU2W3m9Coyk995AG+RtKksk=
X-Forefront-Antispam-Report: CIP:199.43.4.23;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:rmmaillnx1.cadence.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(4636009)(136003)(39860400002)(396003)(376002)(346002)(36092001)(46966005)(107886003)(186003)(5660300002)(82310400003)(426003)(54906003)(356005)(7416002)(36756003)(26005)(6666004)(2616005)(110136005)(42186006)(316002)(36906005)(47076004)(81166007)(86362001)(478600001)(336012)(70586007)(70206006)(921005)(82740400003)(83380400001)(4326008)(8676002)(8936002)(2906002)(2101003)(83996005);DIR:OUT;SFP:1101;
X-OriginatorOrg: cadence.com
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Dec 2020 14:03:22.0760
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 3b3ee1fd-b965-4e89-866c-08d8979431e6
X-MS-Exchange-CrossTenant-Id: d36035c5-6ce6-4662-a3dc-e762e61ae4c9
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=d36035c5-6ce6-4662-a3dc-e762e61ae4c9;Ip=[199.43.4.23];Helo=[rmmaillnx1.cadence.com]
X-MS-Exchange-CrossTenant-AuthSource: BN8NAM12FT040.eop-nam12.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR07MB6476
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737
 definitions=2020-12-03_07:2020-12-03,2020-12-03 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 mlxlogscore=999
 adultscore=0 spamscore=0 priorityscore=1501 impostorscore=0 mlxscore=0
 suspectscore=0 malwarescore=0 phishscore=0 clxscore=1015 bulkscore=0
 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1
 engine=8.12.0-2009150000 definitions=main-2012030085
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Modify atomic_get_input_bus_format function to return input formats
supported instead of using hardcoded value.

Signed-off-by: Yuti Amonkar <yamonkar@cadence.com>
---
 .../drm/bridge/cadence/cdns-mhdp8546-core.c   | 83 +++++++++++++++++--
 1 file changed, 74 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
index d0ed950f4f87..5ef6adb8bc82 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
@@ -2095,27 +2095,92 @@ cdns_mhdp_bridge_atomic_reset(struct drm_bridge *bridge)
 	return &cdns_mhdp_state->base;
 }
 
+#define MAX_INPUT_FORMAT 11
+
 static u32 *cdns_mhdp_get_input_bus_fmts(struct drm_bridge *bridge,
-				      struct drm_bridge_state *bridge_state,
-				      struct drm_crtc_state *crtc_state,
-				      struct drm_connector_state *conn_state,
-				      u32 output_fmt,
-				      unsigned int *num_input_fmts)
-{
+					 struct drm_bridge_state *bridge_state,
+					 struct drm_crtc_state *crtc_state,
+					 struct drm_connector_state *conn_state,
+					 u32 output_fmt,
+					 unsigned int *num_input_fmts)
+{
+	struct drm_connector *conn = conn_state->connector;
+	struct drm_display_info *info = &conn->display_info;
 	u32 *input_fmts;
 	u32 default_bus_format = MEDIA_BUS_FMT_RGB121212_1X36;
+	unsigned int i = 0;
 
 	*num_input_fmts = 0;
 
 	if (output_fmt != MEDIA_BUS_FMT_FIXED)
 		return NULL;
 
-	input_fmts = kzalloc(sizeof(*input_fmts), GFP_KERNEL);
+	input_fmts = kcalloc(MAX_INPUT_FORMAT,
+			     sizeof(*input_fmts), GFP_KERNEL);
 	if (!input_fmts)
 		return NULL;
 
-	*num_input_fmts = 1;
-	input_fmts[0] = default_bus_format;
+	input_fmts[i++] = default_bus_format;
+
+	if (info->color_formats & DRM_COLOR_FORMAT_RGB444) {
+		if (info->bpc == 16) {
+			input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48;
+			input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+			input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+		}
+
+		if (info->bpc == 12) {
+			input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+			input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+		}
+
+		if (info->bpc == 10) {
+			input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+			input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+		}
+
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+	}
+
+	if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444) {
+		if (info->bpc == 16) {
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48;
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+		}
+
+		if (info->bpc == 12) {
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+		}
+
+		if (info->bpc == 10) {
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+			input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+		}
+
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+	}
+
+	if (info->color_formats & DRM_COLOR_FORMAT_YCRCB422) {
+		if (info->bpc == 12) {
+			input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24;
+			input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
+			input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+		}
+
+		if (info->bpc == 10) {
+			input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
+			input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+		}
+
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+	}
+
+	*num_input_fmts = i;
+
 	return input_fmts;
 }
 
-- 
2.17.1