Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote on Mon [2015-Jan-26 08:13:01 +0000]:
> Hi Paul,
>
> Thanks for the review.
>
> On Mon, Jan 26, 2015 at 2:15 AM, Paul Walmsley <paul@xxxxxxxxx> wrote:
> > Hi
> >
> > On Sun, 25 Jan 2015, Lad, Prabhakar wrote:
> >
> >> From: Benoit Parrot <bparrot@xxxxxx>
> >>
> >> this patch adds VPFE HWMOD data for AM43xx.
> >>
> >> Signed-off-by: Benoit Parrot <bparrot@xxxxxx>
> >> Signed-off-by: Darren Etheridge <detheridge@xxxxxx>
> >> Signed-off-by: Felipe Balbi <balbi@xxxxxx>
> >> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
> >> ---
> >> Hi Paul,
> >>
> >> You were right, the hardware team has confirmed that, the VPFE master port is
> >> connected to L3 and the VPFE slave port is connected to L4. The L3 port cannot
> >> serve as a register target because it is initiator only.
> >
> > OK makes sense to me.,
> >
> >>
> >> I have created links referring to dss l3/l4 hwmod and tested it, lemme know
> >> if I have missed something.
> >
> > A few minor comments below
> >
> >>
> [Snip]
> >> /* Interfaces */
> >> static struct omap_hwmod_ocp_if am43xx_l3_main__l4_hs = {
> >> .master = &am33xx_l3_main_hwmod,
> >> @@ -788,6 +826,36 @@ static struct omap_hwmod_ocp_if am43xx_l4_ls__dss_rfbi = {
> >> .user = OCP_USER_MPU | OCP_USER_SDMA,
> >> };
> >>
> >> +static struct omap_hwmod_ocp_if am43xx_l3__vpfe0 = {
> >> + .master = &am43xx_vpfe0_hwmod,
> >> + .slave = &am33xx_l3_main_hwmod,
> >> + .clk = "l3_gclk",
> >> + .flags = OCPIF_SWSUP_IDLE,
> >
> > OCPIF_SWSUP_IDLE probably isn't needed here. Could you please try without
> > it?
> >
> >> + .user = OCP_USER_MPU | OCP_USER_SDMA,
> >> +};
> >> +
> >> +static struct omap_hwmod_ocp_if am43xx_l3__vpfe1 = {
> >> + .master = &am43xx_vpfe1_hwmod,
> >> + .slave = &am33xx_l3_main_hwmod,
> >> + .clk = "l3_gclk",
> >> + .flags = OCPIF_SWSUP_IDLE,
> >
> > Same point as the above.
> >
> Dropped and tested works! posting a v3.
When you tested it without the OCPIF_SWSUP_IDLE, did you go trhough a complete suspend/resume cycle?
This flag was added early on because otherwise the susbsytem would not go idle without it...
Can you post the console output during a suspend/resume cycle?
Benoit
>
> Cheers,
> --Prabhakar Lad
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