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From: Eric Anholt <eric@anholt.net>
To: Michael Turquette <mturquette@linaro.org>,
	linux-arm-kernel@lists.infradead.org
Cc: linux-rpi-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Stephen Warren <swarren@wwwdotorg.org>,
	Lee Jones <lee@kernel.org>,
	linux-clk@vger.kernel.org, Stephen Boyd <sboyd@codeaurora.org>
Subject: Re: [PATCH v4 2/8] clk: Add a Raspberry Pi-specific clock driver.
Date: Wed, 12 Aug 2015 11:04:05 -0700	[thread overview]
Message-ID: <87wpx04c4q.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <20150811211733.31346.11122@quantum>

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Michael Turquette <mturquette@linaro.org> writes:

> Hi Eric,
>
> Quoting Eric Anholt (2015-07-20 12:33:01)
>> +void __init rpi_firmware_init_clock_provider(struct device_node *node)
>> +{
>> +       /* We delay construction of our struct clks until get time,
>> +        * because we need to be able to return -EPROBE_DEFER if the
>> +        * firmware driver isn't up yet.  clk core doesn't support
>> +        * re-probing on -EPROBE_DEFER, but callers of clk_get can.
>> +        */
>> +       of_clk_add_provider(node, rpi_firmware_delayed_get_clk, node);
>> +}
>> +
>> +CLK_OF_DECLARE(rpi_firmware_clocks, "raspberrypi,bcm2835-firmware-clocks",
>> +              rpi_firmware_init_clock_provider);
>
> Do you require CLK_OF_DECLARE here? Could this be a platform driver
> instead?

I'm not actually sure.  The common pattern seemed to be using
CLK_OF_DECLARE (130 files using it versus declaring a struct
platform_driver), and it seems to avoid a whole lot of boilerplate.
What would the advantage be?

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  reply	other threads:[~2015-08-12 18:04 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-20 19:32 [PATCH v4 0/8] Raspberry Pi clock support Eric Anholt
2015-07-20 19:33 ` [PATCH v4 1/8] clk: bcm2835: Add binding docs for the Raspberry Pi clock provider Eric Anholt
2015-08-11 21:18   ` Michael Turquette
2015-08-12 17:56     ` Eric Anholt
2015-07-20 19:33 ` [PATCH v4 2/8] clk: Add a Raspberry Pi-specific clock driver Eric Anholt
2015-08-11 21:17   ` Michael Turquette
2015-08-12 18:04     ` Eric Anholt [this message]
2015-08-12 19:00       ` Michael Turquette
2015-07-20 19:33 ` [PATCH v4 3/8] ARM: bcm2835: Add DT for the firmware clocks driver Eric Anholt
2015-07-24 15:23   ` Lee Jones
2015-07-20 19:33 ` [PATCH v4 4/8] ARM: bcm2835: Drop never-used clock-frequency property of uart0 Eric Anholt
2015-07-24 15:22   ` Lee Jones
2015-07-20 19:33 ` [PATCH v4 5/8] clk: bcm2835: Drop the fixed sys_pclk Eric Anholt
2015-08-11 21:19   ` Michael Turquette
2015-07-20 19:33 ` [PATCH v4 6/8] ARM: bcm2835: Use the RPi firmware clocks for uart Eric Anholt
2015-07-24 15:22   ` Lee Jones
2015-07-20 19:33 ` [PATCH v4 7/8] ARM: bcm2835: Tie SPI clock to the core clock rate Eric Anholt
2015-07-24 15:23   ` Lee Jones
2015-07-20 19:33 ` [PATCH v4 8/8] ARM: bcm2835: Use the firmware on rpi to get the EMMC clock Eric Anholt
2015-07-24 15:22   ` Lee Jones

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