linux-kernel - Re: [PATCH v4 2/3] clk: bcm: Add BCM2711 DVP driver

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Message-ID: <72cfe4f2-86bd-c07d-fe68-ac7474edbb7d@i2se.com>
Date:   Thu, 11 Jun 2020 21:01:28 +0200
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Maxime Ripard <maxime@...no.tech>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Tim Gover <tim.gover@...pberrypi.com>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Mike Turquette <mturquette@...libre.com>,
        linux-kernel@...r.kernel.org, Phil Elwell <phil@...pberrypi.com>,
        Rob Herring <robh+dt@...nel.org>,
        bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-clk@...r.kernel.org,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
Subject: Re: [PATCH v4 2/3] clk: bcm: Add BCM2711 DVP driver

Am 11.06.20 um 19:06 schrieb Florian Fainelli:
>
> On 6/11/2020 9:52 AM, Maxime Ripard wrote:
>> Hi Stefan,
>>
>> On Thu, Jun 11, 2020 at 05:50:30PM +0200, Stefan Wahren wrote:
>>>> diff --git a/drivers/clk/bcm/clk-bcm2711-dvp.c b/drivers/clk/bcm/clk-bcm2711-dvp.c
>>>> new file mode 100644
>>>> index 000000000000..84dbc886e303
>>>> --- /dev/null
>>>> +++ b/drivers/clk/bcm/clk-bcm2711-dvp.c
>>>> @@ -0,0 +1,120 @@
>>>> +// SPDX-License-Identifier: GPL-2.0-or-later
>>>> +// Copyright 2020 Cerno
>>>> +
>>>> +#include <linux/clk-provider.h>
>>>> +#include <linux/module.h>
>>>> +#include <linux/platform_device.h>
>>>> +#include <linux/reset-controller.h>
>>>> +#include <linux/reset/reset-simple.h>
>>>> +
>>>> +#define DVP_HT_RPI_SW_INIT	0x04
>>>> +#define DVP_HT_RPI_MISC_CONFIG	0x08
>>> sorry for not noticing this before. Are these defines specific to the
>>> Raspberry Pi, because of RPI?
>> I'm not entirely sure to be honest. It's the names that the register
>> have, but it's not clear to me if it's something specific to the RPi
>> itself, or it just means something else entirely.
> My understanding is that this is a wrapper that was done specifically
> for the Raspberry Pi usage of that IP block, which is why it has PI in
> the name, so this looks good correct, and this does match the internal
> register database name.

Okay, i'm fine with that and the whole series.

Acked-by: Stefan Wahren <stefan.wahren@...e.com>