disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/media/usb/uvc/uvc_video.c
..
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@@ -20,6 +20,7 @@
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 #include <media/v4l2-common.h>
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21
 
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 #include "uvcvideo.h"
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+#include <soc/rockchip/rockchip-system-status.h>
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 /* ------------------------------------------------------------------------
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  * UVC Controls
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@@ -1308,7 +1309,9 @@
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 	if (has_scr)
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 		memcpy(stream->clock.last_scr, scr, 6);
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1311
 
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-	memcpy(&meta->length, mem, length);
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+	meta->length = mem[0];
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+	meta->flags  = mem[1];
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+	memcpy(meta->buf, &mem[2], length - 2);
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 	meta_buf->bytesused += length + sizeof(meta->ns) + sizeof(meta->sof);
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1316
 
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 	uvc_trace(UVC_TRACE_FRAME,
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@@ -1903,6 +1906,17 @@
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 		uvc_trace(UVC_TRACE_VIDEO, "Selecting alternate setting %u "
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 			"(%u B/frame bandwidth).\n", altsetting, best_psize);
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1908
 
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+		/*
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+		 * Some devices, namely the Logitech C910 and B910, are unable
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+		 * to recover from a USB autosuspend, unless the alternate
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+		 * setting of the streaming interface is toggled.
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+		 */
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+		if (stream->dev->quirks & UVC_QUIRK_WAKE_AUTOSUSPEND) {
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+			usb_set_interface(stream->dev->udev, intfnum,
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+					  altsetting);
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+			usb_set_interface(stream->dev->udev, intfnum, 0);
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+		}
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+
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 		ret = usb_set_interface(stream->dev->udev, intfnum, altsetting);
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 		if (ret < 0)
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 			return ret;
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@@ -2126,6 +2140,8 @@
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 	if (ret < 0)
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 		goto error_commit;
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+	rockchip_set_system_status(SYS_STATUS_PERFORMANCE);
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+
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 	ret = uvc_video_start_transfer(stream, GFP_KERNEL);
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 	if (ret < 0)
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 		goto error_video;
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@@ -2133,6 +2149,7 @@
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 	return 0;
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 error_video:
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+	rockchip_clear_system_status(SYS_STATUS_PERFORMANCE);
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 	usb_set_interface(stream->dev->udev, stream->intfnum, 0);
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 error_commit:
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 	uvc_video_clock_cleanup(stream);
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@@ -2163,4 +2180,5 @@
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 	}
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 	uvc_video_clock_cleanup(stream);
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+	rockchip_clear_system_status(SYS_STATUS_PERFORMANCE);
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 }