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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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eb70e5ab8f
This adds EHCI host support to the chipidea driver. We want it to be part of the hdrc driver and not a standalone (sub-)driver module, as the structure of ehci-hcd.c suggests, so for chipidea controller we hack it to not provide platform-related code, but only the ehci hcd. The ehci-platform driver won't work for us here too, because the controller uses the same registers for both device and host mode and also otg-related bits, so it's not really possible to put ehci registers into a separate resource. This is not a pretty solution, but the alternative is exporting symbols from the chipidea driver to a ehci-chipidea driver and doing all the module refcounting. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
18 lines
289 B
C
18 lines
289 B
C
#ifndef __DRIVERS_USB_CHIPIDEA_HOST_H
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#define __DRIVERS_USB_CHIPIDEA_HOST_H
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#ifdef CONFIG_USB_CHIPIDEA_HOST
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int ci_hdrc_host_init(struct ci13xxx *ci);
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#else
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static inline int ci_hdrc_host_init(struct ci13xxx *ci)
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{
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return -ENXIO;
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}
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#endif
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#endif /* __DRIVERS_USB_CHIPIDEA_HOST_H */
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