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Similar to usbhs_status_get_ctrl_stage(), *_get_device_state() is not supposed to return any error code since its return value is the DVSQ bitfield of the INTSTS0 register. According to SoC HW manual rev1.00, every single value of DVSQ[2:0] is valid and none is an error: ----8<---- Device State 000: Powered state 001: Default state 010: Address state 011: Configuration state 1xx: Suspended state ----8<---- Hence, simplify the function body. The motivation behind dropping the switch/case construct is being able to implement reading the suspended state. The latter (based on the above DVSQ[2:0] description) doesn't have a unique value, but is rather a list of states (which makes switch/case less suitable for reading/validating it): 100: (Suspended) Powered state 101: (Suspended) Default state 110: (Suspended) Address state 111: (Suspended) Configuration state Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/1568207756-22325-1-git-send-email-external.veeraiyan.c@de.adit-jv.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| common.c | ||
| common.h | ||
| fifo.c | ||
| fifo.h | ||
| Kconfig | ||
| Makefile | ||
| mod_gadget.c | ||
| mod_host.c | ||
| mod.c | ||
| mod.h | ||
| pipe.c | ||
| pipe.h | ||
| rcar2.c | ||
| rcar2.h | ||
| rcar3.c | ||
| rcar3.h | ||
| rza2.c | ||
| rza.c | ||
| rza.h | ||