staging: dwc2: Make dwc2_hw_params.host_channels large enough
The hardware offers a 4-bit register containing the number of host channels. However, the values of these register mean 1-16 host channels, not 0-15. Since the dwc2_hw_params struct stores the actual number of host channels supported instead of the raw register value, it should be 5 bits wide instead of 4. Before this commit, hardware with 16 host channels would overflow the field, making it appear as 0 channels. This bug was introduced in commit 9badec2f (staging: dwc2: interpret all hwcfg and related register at init time). Reported-by: Dinh Nguyen <dinguyen@altera.com> Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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