linux-kernel - Re: [PATCH 07/89] clk: bcm: rpi: Allow the driver to be probed by DT

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Message-ID: <d793e358-32db-5fea-aac9-d06062918718@i2se.com>
Date:   Sun, 1 Mar 2020 13:16:28 +0100
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Maxime Ripard <maxime@...no.tech>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Eric Anholt <eric@...olt.net>
Cc:     Tim Gover <tim.gover@...pberrypi.com>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-clk@...r.kernel.org, bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        Phil Elwell <phil@...pberrypi.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 07/89] clk: bcm: rpi: Allow the driver to be probed by DT

Hi Maxime,

Am 24.02.20 um 10:06 schrieb Maxime Ripard:
> The current firmware clock driver for the RaspberryPi can only be probed by
> manually registering an associated platform_device.
>
> While this works fine for cpufreq where the device gets attached a clkdev
> lookup, it would be tedious to maintain a table of all the devices using
> one of the clocks exposed by the firmware.
>
> Since the DT on the other hand is the perfect place to store those
> associations, make the firmware clocks driver probe-able through the device
> tree so that we can represent it as a node.
>
> Cc: Michael Turquette <mturquette@...libre.com>
> Cc: Stephen Boyd <sboyd@...nel.org>
> Cc: linux-clk@...r.kernel.org
> Signed-off-by: Maxime Ripard <maxime@...no.tech>

FWIW i want to mention that starting with this commit, X doesn't start
on my Raspberry Pi 3A (applied on top of linux-next using
multi_v7_defconfig).

Regards
Stefan