From: Christopher Heiny <cheiny@synaptics.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Jean Delvare <khali@linux-fr.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Linux Input <linux-input@vger.kernel.org>,
Allie Xiong <axiong@synaptics.com>,
William Manson <wmanson@synaptics.com>,
Joerie de Gram <j.de.gram@gmail.com>,
Wolfram Sang <w.sang@pengutronix.de>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Linus Walleij <linus.walleij@stericsson.com>,
Naveen Kumar Gaddipati <naveen.gaddipati@stericsson.com>
Subject: Re: [RFC PATCH 14/17] input: RMI4 F30 GPIO/LED control
Date: Tue, 4 Sep 2012 17:28:28 -0700 [thread overview]
Message-ID: <50469CAC.7050608@synaptics.com> (raw)
In-Reply-To: <CACRpkdYc68j24VZAMxLoC-7-sWn4bJPtxA5U6a95Dg82+zTetg@mail.gmail.com>
On 08/27/2012 03:58 PM, Linus Walleij wrote:
> GPIO/LED, nice since I'm a GPIO maintainer I'll take a closer look.
>
> If the bus will start doing a lot of non-input business it should live under
> drivers/mfd but I think this is just one exception, right?
>
> On Fri, Aug 17, 2012 at 3:17 PM, Christopher Heiny <cheiny@synaptics.com> wrote:
>
> (...)
>> diff --git a/drivers/input/rmi4/rmi_f30.c b/drivers/input/rmi4/rmi_f30.c
>
>> +#include <linux/kernel.h>
>> +#include <linux/rmi.h>
>> +#include <linux/input.h>
>> +#include <linux/slab.h>
>> +#include "rmi_driver.h"
>
> The non-existance of <linux/gpio.h> and <linux/leds.h> tells us that something
> is very wrong.
>
> You should not model these GPIOs and LEDs by a set of obscure
> sysfs attributes, instead use the proper kernel subsystems that
> already exist for handling this! LEDs and GPIOs already have their
> own (standardized) userspace sysfs interfaces.
>
> Reading the code I see that this is what happens here, so please rewrite
> this to be a real GPIO+LED driver using struct gpio_chip and
> the same for LEDs.
>
> Be inspired by drivers/gpio/* and drivers/leds/*
Roger. We'll rework this and resubmit at a later date.
next prev parent reply other threads:[~2012-09-05 0:28 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-17 22:17 [RFC PATCH 00/11] input: Synaptics RMI4 Touchscreen Driver Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 1/17] input: RMI4 public header file and documentation Christopher Heiny
2012-08-22 19:08 ` Linus Walleij
2012-08-22 21:45 ` Dmitry Torokhov
2012-08-23 0:26 ` Christopher Heiny
2012-08-22 23:35 ` Rafael J. Wysocki
2012-08-17 22:17 ` [RFC PATCH 2/17] input: RMI4 core bus and sensor drivers Christopher Heiny
2012-08-23 8:55 ` Linus Walleij
2012-09-25 23:53 ` Christopher Heiny
2012-09-26 11:39 ` Linus Walleij
2012-08-17 22:17 ` [RFC PATCH 3/17] input: RMI4 physical layer drivers for I2C and SPI Christopher Heiny
2012-08-23 13:21 ` Linus Walleij
2012-08-17 22:17 ` [RFC PATCH 4/17] input: RMI4 configs and makefiles Christopher Heiny
2012-08-27 18:39 ` Linus Walleij
2012-08-17 22:17 ` [RFC PATCH 5/17] input: rmidev character driver for RMI4 sensors Christopher Heiny
2012-08-27 18:49 ` Linus Walleij
2012-09-05 0:26 ` Christopher Heiny
2012-09-05 8:29 ` Linus Walleij
2012-08-17 22:17 ` [RFC PATCH 6/17] input: RMI4 firmware update Christopher Heiny
2012-08-27 21:01 ` Linus Walleij
2012-08-17 22:17 ` [RFC PATCH 7/17] input: RMI4 F01 device control Christopher Heiny
2012-08-27 21:59 ` Linus Walleij
2012-08-17 22:17 ` [RFC PATCH 8/17] input: RMI4 F09 Built-In Self Test Christopher Heiny
2012-08-27 22:07 ` Linus Walleij
2012-09-05 0:21 ` Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 9/17] input: RMI4 F11 multitouch sensing Christopher Heiny
2012-08-27 22:50 ` Linus Walleij
2012-08-17 22:17 ` [RFC PATCH 10/17] input: RM4 F17 Pointing sticks Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 11/17] input: RMI4 F19 capacitive buttons Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 12/17] input: RMI4 F1A simple " Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 13/17] input: RMI4 F21 Force sensing Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 14/17] input: RMI4 F30 GPIO/LED control Christopher Heiny
2012-08-27 22:58 ` Linus Walleij
2012-09-05 0:28 ` Christopher Heiny [this message]
2012-08-17 22:17 ` [RFC PATCH 15/17] input: RMI4 F34 device reflash Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 16/17] input: RMI4 F41 Active pen 2D input Christopher Heiny
2012-08-17 22:17 ` [RFC PATCH 17/17] input: RMI4 F54 analog data reporting Christopher Heiny
2012-08-27 23:01 ` Linus Walleij
2012-09-05 0:38 ` Christopher Heiny
2012-08-22 12:50 ` [RFC PATCH 00/11] input: Synaptics RMI4 Touchscreen Driver Linus Walleij
2012-08-22 21:29 ` Christopher Heiny
2012-08-27 23:20 ` Christopher Heiny
2012-08-28 0:12 ` Linus Walleij
2012-08-27 23:05 ` Linus Walleij
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