linux-kernel - Re: [PATCH 1/2] spi/pxa2xx-pci: Add common clock framework support in PCI glue layer

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Date:	Mon, 2 Jun 2014 13:46:38 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Chew Chiau Ee <chiau.ee.chew@...el.com>
Cc:	Eric Miao <eric.y.miao@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Darren Hart <dvhart@...ux.intel.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org, linux-spi@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] spi/pxa2xx-pci: Add common clock framework support
 in PCI glue layer

On Tue, Jun 03, 2014 at 03:46:18AM +0800, Chew Chiau Ee wrote:

> ---
>  drivers/spi/spi-pxa2xx-pci.c |   20 ++++++++++++++++++++
>  1 files changed, 20 insertions(+), 0 deletions(-)

> +	clk = clk_register_fixed_rate(&dev->dev, "spi_pxa2xx_clk", NULL,
> +					CLK_IS_ROOT, c->max_clk_rate);
> +	 if (IS_ERR(clk))
> +		return PTR_ERR(clk);

This is pretty much fine code wise but I'd expect to see some Kconfig
updates adding dependencies on the clock API - clk_register_fixed_rate()
is only provided if the fixed rate driver is present.  I'm also not
seeing any changes to unregister the fixed rate clock as the device is
removed.

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