imx-drm: ipu-v3: fix potential CRTC device registration race
Clean up the IPUv3 CRTC device registration; we don't need a separate function just to call platform_device_register_data(), and we don't need the return value converted at all. Update the IPU client id under a mutex, so that parallel probing doesn't race. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk> Acked-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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