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s1d13xxxfb: drop unused code 

Silence warnings such as -

drivers/video/s1d13xxxfb.c:421: warning: ‘bltbit_wait_bitset’ defined but not used

Just drop the unused code.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
hifive-unleashed-5.1
Andres Salomon 2010-12-17 19:00:13 -08:00 committed by Paul Mundt
parent 4959212c18
commit 521bc83b0f
2 changed files with 0 additions and 56 deletions
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50
drivers/video/s1d13xxxfb.c
View File

@ -409,28 +409,6 @@ s1d13xxxfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
functions to handle bitblt acceleration
************************************************************/
/**
* bltbit_wait_bitset - waits for change in register value
* @info : framebuffer structure
* @bit : value expected in register
* @timeout : ...
*
* waits until value changes INTO bit
*/
static u8
bltbit_wait_bitset(struct fb_info *info, u8 bit, int timeout)
{
while (!(s1d13xxxfb_readreg(info->par, S1DREG_BBLT_CTL0) & bit)) {
udelay(10);
if (!--timeout) {
dbg_blit("wait_bitset timeout\n");
break;
}
}
return timeout;
}
/**
* bltbit_wait_bitclear - waits for change in register value
* @info : frambuffer structure
@ -454,34 +432,6 @@ bltbit_wait_bitclear(struct fb_info *info, u8 bit, int timeout)
return timeout;
}
/**
* bltbit_fifo_status - checks the current status of the fifo
* @info : framebuffer structure
*
* returns number of free words in buffer
*/
static u8
bltbit_fifo_status(struct fb_info *info)
{
u8 status;
status = s1d13xxxfb_readreg(info->par, S1DREG_BBLT_CTL0);
/* its empty so room for 16 words */
if (status & BBLT_FIFO_EMPTY)
return 16;
/* its full so we dont want to add */
if (status & BBLT_FIFO_FULL)
return 0;
/* its atleast half full but we can add one atleast */
if (status & BBLT_FIFO_NOT_FULL)
return 1;
return 0;
}
/*
* s1d13xxxfb_bitblt_copyarea - accelerated copyarea function
* @info : framebuffer structure

6
include/video/s1d13xxxfb.h
View File

@ -136,12 +136,6 @@
#define S1DREG_DELAYOFF 0xFFFE
#define S1DREG_DELAYON 0xFFFF
#define BBLT_FIFO_EMPTY 0x00
#define BBLT_FIFO_NOT_EMPTY 0x40
#define BBLT_FIFO_NOT_FULL 0x30
#define BBLT_FIFO_HALF_FULL 0x20
#define BBLT_FIFO_FULL 0x10
#define BBLT_SOLID_FILL 0x0c