Re: [PATCH 1/2] input: samsung-keypad: Add HAVE_SAMSUNG_KEYPAD config option

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Wed, Sep 07, 2011 at 11:22:48AM -0700, Dmitry Torokhov wrote:
> Hi Thomas,
> 
> On Tue, Sep 06, 2011 at 07:25:16PM +0530, Thomas Abraham wrote:
> > Samsung keyboard driver could be used with platforms using device tree.
> > So the inclusion of samsung keyboard driver cannot be based on
> > SAMSUNG_DEV_KEYPAD. A new config option HAVE_SAMSUNG_KEYPAD is added
> > which device tree based platforms should use to include samsung keyboard
> > driver.
> 
> I am sorry, I do not follow... What is the difference between
> SAMSUNG_DEV_KEYPAD and HAVE_SAMSUNG_KEYPAD? They look exactly the same.
> 

BTW, should we do something like below?

Thanks.

-- 
Dmitry

Input: samsung-keypad - enable compiling on other platforms

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

There is nothing in keypad platform definitions that requires
the driver be complied on Samsung platform only, so let's move them
out of the platform subdirectory and relax the dependencies.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

 arch/arm/plat-samsung/include/plat/keypad.h |   27 +----------------
 drivers/input/keyboard/Kconfig              |    5 ++-
 drivers/input/keyboard/samsung-keypad.c     |    2 +
 include/linux/input/samsung-keypad.h        |   43 +++++++++++++++++++++++++++
 4 files changed, 48 insertions(+), 29 deletions(-)
 create mode 100644 include/linux/input/samsung-keypad.h


diff --git a/arch/arm/plat-samsung/include/plat/keypad.h b/arch/arm/plat-samsung/include/plat/keypad.h
index b59a648..8fddee3 100644
--- a/arch/arm/plat-samsung/include/plat/keypad.h
+++ b/arch/arm/plat-samsung/include/plat/keypad.h
@@ -13,32 +13,7 @@
 #ifndef __PLAT_SAMSUNG_KEYPAD_H
 #define __PLAT_SAMSUNG_KEYPAD_H
 
-#include <linux/input/matrix_keypad.h>
-
-#define SAMSUNG_MAX_ROWS	8
-#define SAMSUNG_MAX_COLS	8
-
-/**
- * struct samsung_keypad_platdata - Platform device data for Samsung Keypad.
- * @keymap_data: pointer to &matrix_keymap_data.
- * @rows: number of keypad row supported.
- * @cols: number of keypad col supported.
- * @no_autorepeat: disable key autorepeat.
- * @wakeup: controls whether the device should be set up as wakeup source.
- * @cfg_gpio: configure the GPIO.
- *
- * Initialisation data specific to either the machine or the platform
- * for the device driver to use or call-back when configuring gpio.
- */
-struct samsung_keypad_platdata {
-	const struct matrix_keymap_data	*keymap_data;
-	unsigned int rows;
-	unsigned int cols;
-	bool no_autorepeat;
-	bool wakeup;
-
-	void (*cfg_gpio)(unsigned int rows, unsigned int cols);
-};
+#include <linux/input/samsung_keypad.h>
 
 /**
  * samsung_keypad_set_platdata - Set platform data for Samsung Keypad device.
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index de846f8..db1b221 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -434,9 +434,10 @@ config KEYBOARD_PMIC8XXX
 
 config KEYBOARD_SAMSUNG
 	tristate "Samsung keypad support"
-	depends on SAMSUNG_DEV_KEYPAD
+	depends on HAVE_CLK
 	help
-	  Say Y here if you want to use the Samsung keypad.
+	  Say Y here if you want to use the keypad on your Samsung mobile
+	  device.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called samsung-keypad.
diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
index d244fdf..1a2b755 100644
--- a/drivers/input/keyboard/samsung-keypad.c
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -22,7 +22,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
-#include <plat/keypad.h>
+#include <linux/input/samsung-keypad.h>
 
 #define SAMSUNG_KEYIFCON			0x00
 #define SAMSUNG_KEYIFSTSCLR			0x04
diff --git a/include/linux/input/samsung-keypad.h b/include/linux/input/samsung-keypad.h
new file mode 100644
index 0000000..f25619b
--- /dev/null
+++ b/include/linux/input/samsung-keypad.h
@@ -0,0 +1,43 @@
+/*
+ * Samsung Keypad platform data definitions
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __SAMSUNG_KEYPAD_H
+#define __SAMSUNG_KEYPAD_H
+
+#include <linux/input/matrix_keypad.h>
+
+#define SAMSUNG_MAX_ROWS	8
+#define SAMSUNG_MAX_COLS	8
+
+/**
+ * struct samsung_keypad_platdata - Platform device data for Samsung Keypad.
+ * @keymap_data: pointer to &matrix_keymap_data.
+ * @rows: number of keypad row supported.
+ * @cols: number of keypad col supported.
+ * @no_autorepeat: disable key autorepeat.
+ * @wakeup: controls whether the device should be set up as wakeup source.
+ * @cfg_gpio: configure the GPIO.
+ *
+ * Initialisation data specific to either the machine or the platform
+ * for the device driver to use or call-back when configuring gpio.
+ */
+struct samsung_keypad_platdata {
+	const struct matrix_keymap_data	*keymap_data;
+	unsigned int rows;
+	unsigned int cols;
+	bool no_autorepeat;
+	bool wakeup;
+
+	void (*cfg_gpio)(unsigned int rows, unsigned int cols);
+};
+
+#endif /* __SAMSUNG_KEYPAD_H */