add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/gpio/gpio-mockup.c
..
..
@@ -370,7 +370,7 @@
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 		priv->offset = i;
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 		priv->desc = &gc->gpiodev->descs[i];
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-		debugfs_create_file(name, 0200, chip->dbg_dir, priv,
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+		debugfs_create_file(name, 0600, chip->dbg_dir, priv,
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 				    &gpio_mockup_debugfs_ops);
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 	}
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 }