linux-kernel - Re: [PATCH] mfd: as3722: make FUSE7

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Date:	Wed, 5 Mar 2014 09:55:39 +0800
From:	Lee Jones <lee.jones@...aro.org>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>, linux-kernel@...r.kernel.org,
	Stephen Warren <swarren@...dia.com>,
	Mark Brown <broonie@...aro.org>,
	Michal Simek <michal.simek@...inx.com>,
	Andrew Bresticker <abrestic@...omium.org>,
	Vince Hsu <vinceh@...dia.com>
Subject: Re: [PATCH] mfd: as3722: make FUSE7_REG readable

> From: Stephen Warren <swarren@...dia.com>
> 
> The FUSE7_REG register is not currently marked readable. This causes
> as3722_sd0_is_low_voltage() to emit an error during boot, and assume
> the range of the SD0 regulator:
> 
> as3722-regulator as3722-regulator: Reg 0xa7 read failed: -5
> 
> Fixes: d4807ad2c4c0 ("regmap: Check readable regs in _regmap_read")
> [exposed the bug, by checking for readability]
> Fixes: 762a8ee80897 ("regulator: as3722: detect SD0 low-voltage mode")
> [left out this register from the readable list]
> Cc: Mark Brown <broonie@...aro.org>
> Cc: Michal Simek <michal.simek@...inx.com>
> Cc: Andrew Bresticker <abrestic@...omium.org>
> Cc: Vince Hsu <vinceh@...dia.com>
> Signed-off-by: Stephen Warren <swarren@...dia.com>
> ---
> Note: I believe the regmap commit mentioned above is for 3.15, whereas
> the as3722 commit is in at least 3.14. So, this only needs to be applied
> for 3.15, but might make sense to go into earlier kernels, at your
> discretion.

Applied to MFD -next (v3.15).

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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