[RFC 1/1] crypto: dcp - add power management support

[Herbert Xu]

On Fri, Mar 19, 2021 at 02:22:57AM +0200, Dragos Rosioru (OSS) wrote:
> From: Dragos Rosioru <dragos.rosioru at nxp.com>
> 
> Added suspend/resume operations for PM support in the DCP driver.
> After a suspend/resume cycle DCP would still be in a low-power mode
> and have its clocks gated, thus requiring state to be saved beforehand:
> - Control register value(DCP_CTRL)
> - Channel control register value(DCP_CHANNELCTRL)
> 
> Signed-off-by: Dragos Rosioru <dragos.rosioru at nxp.com>
> ---
>  drivers/crypto/mxs-dcp.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 74 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
> index d6a7784..6748a4a 100644
> --- a/drivers/crypto/mxs-dcp.c
> +++ b/drivers/crypto/mxs-dcp.c
> @@ -23,6 +23,10 @@
>  #include <crypto/internal/skcipher.h>
>  #include <crypto/scatterwalk.h>
>  
> +#ifdef CONFIG_PM_SLEEP
> +#include <linux/freezer.h>
> +#endif

Please find a way to rework this patch so that it's not full of
these ifdefs.

Thanks,
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt