657bf0bd06
This patch adds a ->start_transfer() callback to the KFR2R09 lcd handling code. The callback is used to notify the lcd controller that a new frame of data is about to be transferred. The callback is only used in combination with deferred io, but the code has been tested both with and without deferred io enabled. Without this patch the display data on the KFR2R09 lcd panel becomes corrupted over time. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
28 lines
873 B
C
28 lines
873 B
C
#ifndef __ASM_SH_KFR2R09_H
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#define __ASM_SH_KFR2R09_H
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#include <video/sh_mobile_lcdc.h>
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#ifdef CONFIG_FB_SH_MOBILE_LCDC
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void kfr2r09_lcd_on(void *board_data);
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void kfr2r09_lcd_off(void *board_data);
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int kfr2r09_lcd_setup(void *board_data, void *sys_ops_handle,
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struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
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void kfr2r09_lcd_start(void *board_data, void *sys_ops_handle,
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struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
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#else
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static inline void kfr2r09_lcd_on(void *board_data) {}
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static inline void kfr2r09_lcd_off(void *board_data) {}
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static inline int kfr2r09_lcd_setup(void *board_data, void *sys_ops_handle,
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struct sh_mobile_lcdc_sys_bus_ops *sys_ops)
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{
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return -ENODEV;
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}
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static inline void kfr2r09_lcd_start(void *board_data, void *sys_ops_handle,
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struct sh_mobile_lcdc_sys_bus_ops *sys_ops)
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{
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}
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#endif
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#endif /* __ASM_SH_KFR2R09_H */
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