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;
From:   Xin Ji <xji@analogixsemi.com>
To:     a.hajda@samsung.com, narmstrong@baylibre.com,
        dan.carpenter@oracle.com, robert.foss@linaro.org,
        Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se,
        jernej.skrabec@gmail.com, airlied@linux.ie, daniel@ffwll.ch,
        sam@ravnborg.org, pihsun@chromium.org, tzungbi@google.com,
        maxime@cerno.tech, drinkcat@google.com, hsinyi@chromium.org,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        bliang@analogixsemi.com, qwen@analogixsemi.com
Cc:     Xin Ji <xji@analogixsemi.com>
Subject: [PATCH 2/2] drm/bridge: anx7625: add audio codec .get_eld support
Date:   Tue,  9 Nov 2021 10:42:37 +0800
Message-Id: <20211109024237.3354741-2-xji@analogixsemi.com>
In-Reply-To: <20211109024237.3354741-1-xji@analogixsemi.com>
References: <20211109024237.3354741-1-xji@analogixsemi.com>
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?GzKQdLlPV6dU93o1zINQG3kDoTSI6jO8Cf7IQ6koKpyJ/NBuItCMeCslBuB+?=
 =?us-ascii?Q?8mnRLjV6zbH32h/VvP+ze1Xt8DnNFJVkFzXvX+fe0rpLozAR117DbXfAU6lO?=
 =?us-ascii?Q?/gVLHFcdF4GRgWgG7Ex85bBu2VOb1X94s4d2Y0tbNqX1OvCiwAykCIY/u6Nh?=
 =?us-ascii?Q?prMDEZE+WYyU28Q2IhCNUBrMgoLK5QZctq3GYYgU4Izsygf5dslM8sd+SdqH?=
 =?us-ascii?Q?PYeg4L05naJKCr0dR2NHI0LJbh/TGnaMKSMEiErI/Q3/TYDaf6pkLxDIqT+w?=
 =?us-ascii?Q?GPofYHTl4KoU6RLgnHxmNgqNTfPrrpbgD4MZQhvQjVVn6vPBTW11swewCjJt?=
 =?us-ascii?Q?htLTzJ8qbtei87AhajPPpGeqZQx7X62/imdT2d6fgt2DU0RNTYT8vAsLmEaU?=
 =?us-ascii?Q?ddHMjLrL4QngaZ3v6o8UCPiceVeNXiBqBJi2MWgCSpxiCE7avd+1HECppeih?=
 =?us-ascii?Q?wsojxw3Cqdr2kVbsN0JA6CWJStBqiAn6tjA/7jsI0oWnqovF9FLFdX7NiJ1I?=
 =?us-ascii?Q?NGXuBNKDq96jzpL7X/MG1vyRUBb9IFGHRG8ew7SX1plYX3yib/NqwoDQTBCs?=
 =?us-ascii?Q?EO1x4FkxO34W4WLUJE/n9sdEu5vdaVKzJDnIoFhZwZRgxwP7VubuOcUhhgwG?=
 =?us-ascii?Q?lKi5pPhsRGlBNoPtisWyDr7TAAs04CvXnKOpmStc1TPrzvz/9X9HLThXVGRa?=
 =?us-ascii?Q?oTaJnFgx3NplBkg0IBK7yL40kGD5IaCytEhROcgaTIfy+mn68UWUpSya7GpE?=
 =?us-ascii?Q?Y89bxbUZqT4UrJANTPNZxcig6egkJ7JsHnQ1COcz9dBA90udlrX5g03j1wVB?=
 =?us-ascii?Q?JLLg0V1bNz0MxuYyBTbgo97oTgWUkWy//v4rf9ZIkphLsM1oFQj0U9l2Q84k?=
 =?us-ascii?Q?cCftHALAcvFHK+eCQK7pYEh4Sf1TccXI8paexFDv9QD26eAMEzCcqr2vX5cb?=
 =?us-ascii?Q?HADkajsQEfZSiGxwip8dPG1cphOjTZFuXRDOfqdiSxNtm8Mnyj/jvp6u/xFD?=
 =?us-ascii?Q?yX1maoCqaIwNfWF2VIPEprFd0qcutiTazGWLaP05yZUY+LVNqqkvC+uRtMau?=
 =?us-ascii?Q?Qv/SniFhTAaBiNXx3AzPTLIzQsZ++yj+Hl2pjDdcStomSCi8ZnRlWZO7VsXN?=
 =?us-ascii?Q?eCYuVyjgB9Afj7EqPBpMpRAD3ssiVm1gf2ZRPEDfS5jvliGEvfzOVl+/u6Ri?=
 =?us-ascii?Q?svt1uuSwymGmV9AOX8P2pZ0p7tPXXZxIm88ATRuzEVhAvIkO/1xDeujqPQoo?=
 =?us-ascii?Q?npdiCQK3smtD8qvr2hDVMyc3wiqAXpT+R0foEcPQOIqzVk9azIVlhtKAYS8f?=
 =?us-ascii?Q?T2O0U90cYfzzclbkp60bhzyP7bWymD6wYoandL7MIqADtEA57wFcp/0p6gIV?=
 =?us-ascii?Q?Sh9pK/x5DChIOp1nH8joaUxbBRDVa+mbGXbleSgWDEMtA0/TmoKQKunnQJj8?=
 =?us-ascii?Q?urOHXQBBzyFxsS2+S+Hh7BFP+kZxX2onLnaAs4V4BDVXX+9XCP/1FthlJLow?=
 =?us-ascii?Q?CxkEc7n+MKTJbX1zZgftMVBFwrj5t0KQh7i087WiR7HZx8AC79GwZmOreqaJ?=
 =?us-ascii?Q?2jXQ4UplcNl80WH46/9j23Xa+NIfnkBT+YERKVf+d/fvK91j79y0aQnlALoc?=
 =?us-ascii?Q?56ZZPEnJUriKh53qLl743qo=3D?=
X-OriginatorOrg: analogixsemi.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 8f2c897f-5862-45ef-ebde-08d9a32abba7
X-MS-Exchange-CrossTenant-AuthSource: BY5PR04MB6739.namprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Nov 2021 02:43:38.4592
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: b099b0b4-f26c-4cf5-9a0f-d5be9acab205
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: gSFljnRyRdhOZhcyQCg1l9HnY1citvzQB2pxecqh07FdJ/gO6d6XV5mTYIslFV+EojGgybydj4esCW65TfATRg==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR04MB6566
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Provide .get_eld interface in hdmi_codec_ops for hdmi-codec driver.

Signed-off-by: Xin Ji <xji@analogixsemi.com>
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 6d93026c2999..67a87d21b0ba 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1821,9 +1821,27 @@ static int anx7625_audio_hook_plugged_cb(struct device *dev, void *data,
 	return 0;
 }
 
+static int anx7625_audio_get_eld(struct device *dev, void *data,
+				 u8 *buf, size_t len)
+{
+	struct anx7625_data *ctx = dev_get_drvdata(dev);
+
+	if (!ctx->connector) {
+		DRM_DEV_DEBUG_DRIVER(dev, "connector not initial\n");
+		return -EINVAL;
+	}
+
+	DRM_DEV_DEBUG_DRIVER(dev, "audio copy eld\n");
+	memcpy(buf, ctx->connector->eld,
+	       min(sizeof(ctx->connector->eld), len));
+
+	return 0;
+}
+
 static const struct hdmi_codec_ops anx7625_codec_ops = {
 	.hw_params	= anx7625_audio_hw_params,
 	.audio_shutdown = anx7625_audio_shutdown,
+	.get_eld	= anx7625_audio_get_eld,
 	.get_dai_id	= anx7625_hdmi_i2s_get_dai_id,
 	.hook_plugged_cb = anx7625_audio_hook_plugged_cb,
 };
-- 
2.25.1