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rk27xx lcd code rework

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Use DMA engine for fullscreen updates and bypass mode for partial
updates. This gives major boost on rk27generic:
default ARM:AHB:APB 200💯50
HEAD    1/1:  26.3fps 1/4: 105.0fps
patched 1/1: 116.5fps 1/4: 249.5fps

with freq scalling NORMAL mode ARM:AHB:APB 50:50:50
HEAD    1/1:  13.1fps 1/4: 52.5fps
patched 1/1:  54.5fps 1/4: 119.0fps

Tested on rk27generic noname DAP and on Hifimans.

Change-Id: Id9dd4d2d61542c7ea6b5c6336b170d6357cefde9
This commit is contained in:
Andrew Ryabinin 2012-09-25 11:41:12 +04:00 • committed by Marcin Bukat
parent f636aa07df
commit 84134f737f
8 changed files with 352 additions and 137 deletions
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7
firmware/target/arm/rk27xx/lcdif-rk27xx.h
View file

@ -6,11 +6,12 @@ enum lcdif_mode_t {
LCDIF_18BIT
};
unsigned int lcd_data_transform(unsigned int data);
void lcd_cmd(unsigned int cmd);
void lcd_data(unsigned int data);
void lcd_write_reg(unsigned int reg, unsigned int val);
void lcdif_init(enum lcdif_mode_t mode);
void lcdctrl_bypass(unsigned int on_off);
void lcd_display_init(void);
void lcd_set_gram_area(int x, int y, int width, int height);
#endif /* _LCDIF_RK27XX_H */