linux-kernel - Re: [PATCH v2] ARM: AM43xx: hwmod: add VPFE hwmod entries

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Message-ID: <CA+V-a8urS2C20FDcfsGa+Gg+7wmbbQQw3U7BfXf6GBKoBGMc9w@mail.gmail.com>
Date:	Mon, 26 Jan 2015 08:13:01 +0000
From:	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:	Paul Walmsley <paul@...an.com>
Cc:	Tony Lindgren <tony@...mide.com>,
	LAK <linux-arm-kernel@...ts.infradead.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Benoit Parrot <bparrot@...com>,
	Darren Etheridge <detheridge@...com>,
	Felipe Balbi <balbi@...com>
Subject: Re: [PATCH v2] ARM: AM43xx: hwmod: add VPFE hwmod entries

Hi Paul,

Thanks for the review.

On Mon, Jan 26, 2015 at 2:15 AM, Paul Walmsley <paul@...an.com> wrote:
> Hi
>
> On Sun, 25 Jan 2015, Lad, Prabhakar wrote:
>
>> From: Benoit Parrot <bparrot@...com>
>>
>> this patch adds VPFE HWMOD data for AM43xx.
>>
>> Signed-off-by: Benoit Parrot <bparrot@...com>
>> Signed-off-by: Darren Etheridge <detheridge@...com>
>> Signed-off-by: Felipe Balbi <balbi@...com>
>> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
>> ---
>>  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.

Cheers,
--Prabhakar Lad
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