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Commit 5435f281 authored by Bruno Prémont's avatar Bruno Prémont Committed by Jiri Kosina
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HID: hid-picolcd depends on LCD_CLASS_DEVICE 



HID_PICOLCD should depend on LCD_CLASS_DEVICE, otherwise the
build fails when HID_PICOLCD=y and LCD_CLASS_DEVICE=m:

hid-picolcd.c:(.text+0x84523f): undefined reference to `lcd_device_unregister'
hid-picolcd.c:(.text+0x8478ab): undefined reference to `lcd_device_register'
hid-picolcd.c:(.text+0x84c15f): undefined reference to `lcd_device_unregister'

Same applies to FB, BACKLIGHT_CLASS_DEVICE and LEDS_CLASS.

Add suboptions for those features to handle the deps on kbuild side
and just check HID_PICOLCD_* in the code.

Reported-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: default avatarBruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent eb741103

drivers/hid/Kconfig

+44 −9
Original line number Diff line number Diff line
@@ -265,11 +265,6 @@ config HID_PETALYNX 
config HID_PICOLCD

	tristate "PicoLCD (graphic version)"

	depends on USB_HID

	select FB_DEFERRED_IO if FB

	select FB_SYS_FILLRECT if FB

	select FB_SYS_COPYAREA if FB

	select FB_SYS_IMAGEBLIT if FB

	select FB_SYS_FOPS if FB

	---help---

	  This provides support for Minibox PicoLCD devices, currently

	  only the graphical ones are supported.
@@ -277,14 +272,54 @@ config HID_PICOLCD 
	  This includes support for the following device features:

	  - Keypad

	  - Switching between Firmware and Flash mode

	  - Framebuffer for monochrome 256x64 display

	  - Backlight control         (needs CONFIG_BACKLIGHT_CLASS_DEVICE)

	  - Contrast control          (needs CONFIG_LCD_CLASS_DEVICE)

	  - General purpose outputs   (needs CONFIG_LEDS_CLASS)

	  - EEProm / Flash access     (via debugfs)

	  Features selectively enabled:

	  - Framebuffer for monochrome 256x64 display

	  - Backlight control

	  - Contrast control

	  - General purpose outputs

	  Features that are not (yet) supported:

	  - IR



config HID_PICOLCD_FB

	bool "Framebuffer support" if EMBEDDED

	default !EMBEDDED

	depends on HID_PICOLCD

	depends on HID_PICOLCD=FB || FB=y

	select FB_DEFERRED_IO

	select FB_SYS_FILLRECT

	select FB_SYS_COPYAREA

	select FB_SYS_IMAGEBLIT

	select FB_SYS_FOPS

	---help---

	  Provide access to PicoLCD's 256x64 monochrome display via a

	  frambuffer device.



config HID_PICOLCD_BACKLIGHT

	bool "Backlight control" if EMBEDDED

	default !EMBEDDED

	depends on HID_PICOLCD

	depends on HID_PICOLCD=BACKLIGHT_CLASS_DEVICE || BACKLIGHT_CLASS_DEVICE=y

	---help---

	  Provide access to PicoLCD's backlight control via backlight

	  class.



config HID_PICOLCD_LCD

	bool "Contrast control" if EMBEDDED

	default !EMBEDDED

	depends on HID_PICOLCD

	depends on HID_PICOLCD=LCD_CLASS_DEVICE || LCD_CLASS_DEVICE=y

	---help---

	  Provide access to PicoLCD's LCD contrast via lcd class.



config HID_PICOLCD_LEDS

	bool "GPO via leds class" if EMBEDDED

	default !EMBEDDED

	depends on HID_PICOLCD

	depends on HID_PICOLCD=LEDS_CLASS || LEDS_CLASS=y

	---help---

	  Provide access to PicoLCD's GPO pins via leds class.



config HID_QUANTA

	tristate "Quanta Optical Touch"

	depends on USB_HID

drivers/hid/hid-picolcd.c

+20 −20
Original line number Diff line number Diff line
@@ -77,7 +77,7 @@ 
#define REPORT_HOOK_VERSION    0xf7 /* LCD: IN[2], OUT[1]   */

#define REPORT_EXIT_FLASHER    0xff /*                      Bootloader: OUT[2]         */



#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE)

#ifdef CONFIG_HID_PICOLCD_FB

/* Framebuffer

 *

 * The PicoLCD use a Topway LCD module of 256x64 pixel
@@ -128,7 +128,7 @@ static const struct fb_var_screeninfo picolcdfb_var = { 
	.bits_per_pixel = 1,

	.grayscale      = 1,

};

#endif /* CONFIG_FB */

#endif /* CONFIG_HID_PICOLCD_FB */



/* Input device

 *
@@ -183,7 +183,7 @@ struct picolcd_data { 
	struct input_dev *input_cir;

	unsigned short keycode[PICOLCD_KEYS];



#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE)

#ifdef CONFIG_HID_PICOLCD_FB

	/* Framebuffer stuff */

	u8 fb_update_rate;

	u8 fb_bpp;
@@ -191,21 +191,21 @@ struct picolcd_data { 
	u8 *fb_bitmap;		/* framebuffer */

	struct fb_info *fb_info;

	struct fb_deferred_io fb_defio;

#endif /* CONFIG_FB */

#if defined(CONFIG_LCD_CLASS_DEVICE) || defined(CONFIG_LCD_CLASS_DEVICE_MODULE)

#endif /* CONFIG_HID_PICOLCD_FB */

#ifdef CONFIG_HID_PICOLCD_LCD

	struct lcd_device *lcd;

	u8 lcd_contrast;

#endif

#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)

#endif /* CONFIG_HID_PICOLCD_LCD */

#ifdef CONFIG_HID_PICOLCD_BACKLIGHT

	struct backlight_device *backlight;

	u8 lcd_brightness;

	u8 lcd_power;

#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */

#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)

#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */

#ifdef CONFIG_HID_PICOLCD_LEDS

	/* LED stuff */

	u8 led_state;

	struct led_classdev *led[8];

#endif /* CONFIG_LEDS_CLASS */

#endif /* CONFIG_HID_PICOLCD_LEDS */



	/* Housekeeping stuff */

	spinlock_t lock;
@@ -287,7 +287,7 @@ static struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev, 
	return work;

}



#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE)

#ifdef CONFIG_HID_PICOLCD_FB

/* Send a given tile to PicoLCD */

static int picolcd_fb_send_tile(struct hid_device *hdev, int chip, int tile)

{
@@ -766,9 +766,9 @@ static void picolcd_exit_framebuffer(struct picolcd_data *data) 
{

}

#define picolcd_fbinfo(d) NULL

#endif /* CONFIG_FB */

#endif /* CONFIG_HID_PICOLCD_FB */



#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)

#ifdef CONFIG_HID_PICOLCD_BACKLIGHT

/*

 * backlight class device

 */
@@ -864,9 +864,9 @@ static inline int picolcd_resume_backlight(struct picolcd_data *data) 
{

	return 0;

}

#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */

#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */



#if defined(CONFIG_LCD_CLASS_DEVICE) || defined(CONFIG_LCD_CLASS_DEVICE_MODULE)

#ifdef CONFIG_HID_PICOLCD_LCD

/*

 * lcd class device

 */
@@ -957,9 +957,9 @@ static inline int picolcd_resume_lcd(struct picolcd_data *data) 
{

	return 0;

}

#endif /* CONFIG_LCD_CLASS_DEVICE */

#endif /* CONFIG_HID_PICOLCD_LCD */



#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)

#ifdef CONFIG_HID_PICOLCD_LEDS

/**

 * LED class device

 */
@@ -1104,7 +1104,7 @@ static inline int picolcd_leds_set(struct picolcd_data *data) 
{

	return 0;

}

#endif /* CONFIG_LEDS_CLASS */

#endif /* CONFIG_HID_PICOLCD_LEDS */



/*

 * input class device
@@ -1243,10 +1243,10 @@ static int picolcd_reset(struct hid_device *hdev) 


	picolcd_resume_lcd(data);

	picolcd_resume_backlight(data);

#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE)

#ifdef CONFIG_HID_PICOLCD_FB

	if (data->fb_info)

		schedule_delayed_work(&data->fb_info->deferred_work, 0);

#endif /* CONFIG_FB */

#endif /* CONFIG_HID_PICOLCD_FB */



	picolcd_leds_set(data);

	return 0;