Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-04 18:13:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: ICST: icst.*_ps_to_vco() functions are unused, remove them

Browse Source 
These functions were originally implemented for the CLCD driver before
we had clk API support.  Since the CLCD driver does not use these
anymore, we can remove them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2010-01-16 17:15:07 +00:00
parent 39c0cb02db
commit 643761ac43
4 changed files with 0 additions and 131 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
arch/arm/common/icst307.c
View File

@ -95,67 +95,3 @@ icst307_khz_to_vco(const struct icst_params *p, unsigned long freq)
}
EXPORT_SYMBOL(icst307_khz_to_vco);
struct icst_vco
icst307_ps_to_vco(const struct icst_params *p, unsigned long period)
{
struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
unsigned long f, ps;
unsigned int i = 0, rd, best = (unsigned int)-1;
ps = 1000000000UL / p->vco_max;
/*
* First, find the PLL output divisor such
* that the PLL output is within spec.
*/
do {
f = period / s2div[idx2s[i]];
/*
* f must be between 6MHz and 200MHz (3.3 or 5V)
*/
if (f >= ps && f < 1000000000UL / 6000 + 1)
break;
} while (i < ARRAY_SIZE(idx2s));
if (i >= ARRAY_SIZE(idx2s))
return vco;
vco.s = idx2s[i];
ps = 500000000UL / p->ref;
/*
* Now find the closest divisor combination
* which gives a PLL output of 'f'.
*/
for (rd = p->rd_min; rd <= p->rd_max; rd++) {
unsigned long f_in_div, f_pll;
unsigned int vd;
int f_diff;
f_in_div = ps * rd;
vd = (f_in_div + f / 2) / f;
if (vd < p->vd_min || vd > p->vd_max)
continue;
f_pll = (f_in_div + vd / 2) / vd;
f_diff = f_pll - f;
if (f_diff < 0)
f_diff = -f_diff;
if ((unsigned)f_diff < best) {
vco.v = vd - 8;
vco.r = rd - 2;
if (f_diff == 0)
break;
best = f_diff;
}
}
return vco;
}
EXPORT_SYMBOL(icst307_ps_to_vco);

65
arch/arm/common/icst525.c
View File

@ -93,68 +93,3 @@ icst525_khz_to_vco(const struct icst_params *p, unsigned long freq)
}
EXPORT_SYMBOL(icst525_khz_to_vco);
struct icst_vco
icst525_ps_to_vco(const struct icst_params *p, unsigned long period)
{
struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
unsigned long f, ps;
unsigned int i = 0, rd, best = (unsigned int)-1;
ps = 1000000000UL / p->vco_max;
/*
* First, find the PLL output divisor such
* that the PLL output is within spec.
*/
do {
f = period / s2div[idx2s[i]];
/*
* f must be between 10MHz and
* 320MHz (5V) or 200MHz (3V)
*/
if (f >= ps && f < 100000)
break;
} while (i < ARRAY_SIZE(idx2s));
if (i >= ARRAY_SIZE(idx2s))
return vco;
vco.s = idx2s[i];
ps = 500000000UL / p->ref;
/*
* Now find the closest divisor combination
* which gives a PLL output of 'f'.
*/
for (rd = p->rd_min; rd <= p->rd_max; rd++) {
unsigned long f_in_div, f_pll;
unsigned int vd;
int f_diff;
f_in_div = ps * rd;
vd = (f_in_div + f / 2) / f;
if (vd < p->vd_min || vd > p->vd_max)
continue;
f_pll = (f_in_div + vd / 2) / vd;
f_diff = f_pll - f;
if (f_diff < 0)
f_diff = -f_diff;
if ((unsigned)f_diff < best) {
vco.v = vd - 8;
vco.r = rd - 2;
if (f_diff == 0)
break;
best = f_diff;
}
}
return vco;
}
EXPORT_SYMBOL(icst525_ps_to_vco);

1
arch/arm/include/asm/hardware/icst307.h
View File

@ -20,6 +20,5 @@
unsigned long icst307_khz(const struct icst_params *p, struct icst_vco vco);
struct icst_vco icst307_khz_to_vco(const struct icst_params *p, unsigned long freq);
struct icst_vco icst307_ps_to_vco(const struct icst_params *p, unsigned long period);
#endif

1
arch/arm/include/asm/hardware/icst525.h
View File

@ -18,6 +18,5 @@
unsigned long icst525_khz(const struct icst_params *p, struct icst_vco vco);
struct icst_vco icst525_khz_to_vco(const struct icst_params *p, unsigned long freq);
struct icst_vco icst525_ps_to_vco(const struct icst_params *p, unsigned long period);
#endif