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838f865802
Replace <linux/fb.h> with a forward declaration in <asm/backlight.h> to
resolve an unnecessary dependency. Remove pmac_backlight_curve_lookup()
and struct fb_info from source and header files. The function and the
framebuffer struct are unused. No functional changes.
v3:
* Add Fixes tag (Christophe)
* fix typos in commit message (Jani)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: d565dd3b08 ("[PATCH] powerpc: More via-pmu backlight fixes")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # (powerpc)
Link: https://patchwork.freedesktop.org/patch/msgid/20240306122935.10626-4-tzimmermann@suse.de
41 lines
1 KiB
C
41 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Routines for handling backlight control on PowerBooks
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*
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* For now, implementation resides in
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* arch/powerpc/platforms/powermac/backlight.c
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*
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*/
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#ifndef __ASM_POWERPC_BACKLIGHT_H
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#define __ASM_POWERPC_BACKLIGHT_H
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#ifdef __KERNEL__
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#include <linux/mutex.h>
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struct backlight_device;
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/* For locking instructions, see the implementation file */
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extern struct backlight_device *pmac_backlight;
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extern struct mutex pmac_backlight_mutex;
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extern int pmac_has_backlight_type(const char *type);
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extern void pmac_backlight_key(int direction);
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static inline void pmac_backlight_key_up(void)
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{
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pmac_backlight_key(0);
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}
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static inline void pmac_backlight_key_down(void)
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{
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pmac_backlight_key(1);
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}
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extern void pmac_backlight_set_legacy_brightness_pmu(int brightness);
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extern int pmac_backlight_set_legacy_brightness(int brightness);
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extern int pmac_backlight_get_legacy_brightness(void);
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extern void pmac_backlight_enable(void);
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extern void pmac_backlight_disable(void);
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#endif /* __KERNEL__ */
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#endif
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