linux-kernel - Re: [PATCH v3 2/2] i2c: New bus driver for the Qualcomm QUP I2C controller

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Message-ID: <1392943934.2594.14.camel@joe-AO722>
Date:	Thu, 20 Feb 2014 16:52:14 -0800
From:	Joe Perches <joe@...ches.com>
To:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Rob Landley <rob@...dley.net>,
	Wolfram Sang <wsa@...-dreams.de>,
	Grant Likely <grant.likely@...aro.org>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Andy Gross <agross@...eaurora.org>,
	Stephen Boyd <sboyd@...eaurora.org>,
	"Ivan T. Ivanov" <iivanov@...sol.com>
Subject: Re: [PATCH v3 2/2] i2c: New bus driver for the Qualcomm QUP I2C
 controller

On Thu, 2014-02-20 at 16:38 -0800, Bjorn Andersson wrote:
> This bus driver supports the QUP i2c hardware controller in the Qualcomm SOCs.
> The Qualcomm Universal Peripheral Engine (QUP) is a general purpose data path
> engine with input/output FIFOs and an embedded i2c mini-core. The driver
> supports FIFO mode (for low bandwidth applications) and block mode (interrupt
> generated for each block-size data transfer).

trivia:

> diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c
[]
> +#ifdef CONFIG_PM_SLEEP
> +static int qup_i2c_suspend(struct device *device)
> +{
> +	dev_dbg(device, "system suspend");
> +	qup_i2c_pm_suspend_runtime(device);
> +	return 0;
> +}
> +
> +static int qup_i2c_resume(struct device *device)
> +{
> +	dev_dbg(device, "system resume");
> +	qup_i2c_pm_resume_runtime(device);
> +	pm_runtime_mark_last_busy(device);
> +	pm_request_autosuspend(device);
> +	return 0;
> +}
> +#endif

Missing terminating newlines for dev_dbg statements.


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