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alistair23-linux
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Author SHA1 Message Date
Peng Fan 61212b715b gpio: imx-rpmsg: register gpio chip after rpmsg channel ready 
Register gpio chip after rpmsg channel ready, otherwise consumer
might use gpio before rpmsg channel ready, and cause issue.

Late register the gpio chip could let consumer use defer probe
correclty.

Reported-by: Elven Wang <elven.wang@nxp.com>
Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
 2020-05-08 10:06:56 +08:00
Fugang Duan 056c182863 gpio: imx-rpmsg: add gpio interrupt chip support 
Add gpio interrupt chip support that only support wakeup feature
by M4 core.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
 2019-11-25 15:46:29 +08:00
Fugang Duan f3462feb1f gpio: imx-rpmsg: add rpmsg virtual gpio driver 
Add rpmsg virtual gpio driver support.
i.MX7ULP GPIO PTA and PTB resource are managed by M4 core, setup one
simple protocol with M4 core based on RPMSG virtual IO to let A core
access such GPIOs that is what the driver do.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
 2019-11-25 15:46:28 +08:00