kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/drivers/media/i2c/lt6911uxc.c
..
..
@@ -18,6 +18,7 @@
18
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 #include <linux/module.h>
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19
 #include <linux/of_graph.h>
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 #include <linux/rk-camera-module.h>
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+#include <linux/rk_hdmirx_class.h>
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 #include <linux/slab.h>
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 #include <linux/timer.h>
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24
 #include <linux/v4l2-dv-timings.h>
..
..
@@ -89,6 +90,7 @@
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 	u32 module_index;
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 	u32 csi_lanes_in_use;
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 	u32 audio_sampling_rate;
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+	struct device *classdev;
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 };
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95
 
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 struct lt6911uxc_mode {
..
..
@@ -1279,6 +1281,34 @@
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 }
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 #endif
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1283
 
1284
+static ssize_t audio_rate_show(struct device *dev,
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+			       struct device_attribute *attr, char *buf)
1286
+{
1287
+	struct lt6911uxc *lt6911uxc = dev_get_drvdata(dev);
1288
+
1289
+	return snprintf(buf, PAGE_SIZE, "%d", lt6911uxc->audio_sampling_rate);
1290
+}
1291
+
1292
+static ssize_t audio_present_show(struct device *dev,
1293
+				  struct device_attribute *attr, char *buf)
1294
+{
1295
+	struct lt6911uxc *lt6911uxc = dev_get_drvdata(dev);
1296
+
1297
+	return snprintf(buf, PAGE_SIZE, "%d",
1298
+			tx_5v_power_present(&lt6911uxc->sd) ?
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+			lt6911uxc->is_audio_present : 0);
1300
+}
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+
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+static DEVICE_ATTR_RO(audio_rate);
1303
+static DEVICE_ATTR_RO(audio_present);
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+
1305
+static struct attribute *lt6911_attrs[] = {
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+	&dev_attr_audio_rate.attr,
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+	&dev_attr_audio_present.attr,
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+	NULL
1309
+};
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+ATTRIBUTE_GROUPS(lt6911);
1311
+
1282
1312
 static int lt6911uxc_probe(struct i2c_client *client,
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1313
 		const struct i2c_device_id *id)
1284
1314
 {
..
..
@@ -1355,6 +1385,14 @@
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 		goto err_clean_entity;
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1386
 	}
1357
1387
 
1388
+	lt6911uxc->classdev = device_create_with_groups(rk_hdmirx_class(),
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+							dev, MKDEV(0, 0),
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+							lt6911uxc,
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+							lt6911_groups,
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+							"lt6911");
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+	if (IS_ERR(lt6911uxc->classdev))
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+		goto err_clean_entity;
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+
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1396
 	INIT_DELAYED_WORK(&lt6911uxc->delayed_work_enable_hotplug,
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1397
 			lt6911uxc_delayed_work_enable_hotplug);
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1398
 	INIT_DELAYED_WORK(&lt6911uxc->delayed_work_res_change,