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From: Christopher Heiny <cheiny@synaptics.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Andrew Duggan <aduggan@synaptics.com>,
	Vincent Huang <vincent.huang@tw.synaptics.com>,
	Vivian Ly <vly@synaptics.com>,
	Daniel Rosenberg <daniel.rosenberg@synaptics.com>,
	Linus Walleij <linus.walleij@stericsson.com>,
	Benjamin Tissoires <benjamin.tissoires@redhat.com>,
	Courtney Cavin <courtney.cavin@sonymobile.com>,
	Linux Input <linux-input@vger.kernel.org>,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 03/11] Input: synaptics-rmi4 - do not update configuration in rmi_f01_probe()
Date: Fri, 14 Feb 2014 15:00:43 -0800	[thread overview]
Message-ID: <52FEA01B.7040604@synaptics.com> (raw)
In-Reply-To: <20140213215432.GA6225@core.coreip.homeip.net>

On 02/13/2014 01:54 PM, Dmitry Torokhov wrote:
> On Thu, Feb 13, 2014 at 11:23:44AM -0800, Christopher Heiny wrote:
>> >On 02/12/2014 09:27 PM, Dmitry Torokhov wrote:
>>> > >Do not write configuration data in probe(), we have config() for that.
>> >
>> >Then we should call config() in rmi_function_probe() to ensure that
>> >any platform data or device tree configuration settings get written
>> >to the device.
 >
> Well, yes, we may elect to update device configuration in probe, but
> then we should not be doing that 2nd time in ->config(). We shoudl pick
> either one or another.

But as the code currently stands, config() is only called when a device 
reset is detected, not during initialization.  So if there's platform 
specific configuration data that needs to be written to a function, it 
won't get written until after a device reset occurs, which might never 
happen.  So either we need to write that data (or call config()) in each 
function's probe(), or in rmi_function_probe().

  reply	other threads:[~2014-02-14 23:00 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-13  5:27 [PATCH 01/11] Input: synaptics-rmi4 - do not kfree() managed memory in F01 Dmitry Torokhov
2014-02-13  5:27 ` [PATCH 02/11] Input: synaptics-rmi4 - remove unused rmi_f01_remove() Dmitry Torokhov
2014-02-13 19:11   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 03/11] Input: synaptics-rmi4 - do not update configuration in rmi_f01_probe() Dmitry Torokhov
2014-02-13 19:23   ` Christopher Heiny
2014-02-13 21:54     ` Dmitry Torokhov
2014-02-14 23:00       ` Christopher Heiny [this message]
2014-02-17 19:23         ` Dmitry Torokhov
2014-02-18 21:32           ` Christopher Heiny
2014-03-19  0:21   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 04/11] Input: synaptics-rmi4 - fix LTS handling in F01 Dmitry Torokhov
2014-02-13 19:32   ` Christopher Heiny
2014-02-14  8:05     ` Dmitry Torokhov
2014-02-13  5:27 ` [PATCH 05/11] Input: synaptics-rmi4 - remove control_mutex from f01_data Dmitry Torokhov
2014-02-13 23:01   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 06/11] Input: synaptics-rmi4 - remove device_status form f01_data Dmitry Torokhov
2014-02-13 21:15   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 07/11] Input: synaptics-rmi4 - rename instances of f01_data from data to f01 Dmitry Torokhov
2014-02-13 21:32   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 08/11] Input: synaptics-rmi4 - use rmi_read/rmi_write in F01 Dmitry Torokhov
2014-02-13 21:33   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 09/11] Input: synaptics-rmi4 - consolidate memory allocations " Dmitry Torokhov
2014-02-13 19:52   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 10/11] Input: synaptics-rmi4 - make accessor for platform data return const pointer Dmitry Torokhov
2014-02-13 20:00   ` Christopher Heiny
2014-02-13  5:27 ` [PATCH 11/11] Input: synaptics-rmi4 - remove data pointer from RMI fucntion structure Dmitry Torokhov
2014-02-13 21:33   ` Christopher Heiny
2014-02-13 19:11 ` [PATCH 01/11] Input: synaptics-rmi4 - do not kfree() managed memory in F01 Christopher Heiny

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