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

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>

4 files changed, 0 insertions, 131 deletions

diff --git a/arch/arm/common/icst307.c b/arch/arm/common/icst307.c
index 2eebd96..f78f5b5 100644
--- a/arch/arm/common/icst307.c
+++ b/arch/arm/common/icst307.c
@@ -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);
diff --git a/arch/arm/common/icst525.c b/arch/arm/common/icst525.c
index fd5c2e7..eadf983 100644
--- a/arch/arm/common/icst525.c
+++ b/arch/arm/common/icst525.c
@@ -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);
diff --git a/arch/arm/include/asm/hardware/icst307.h b/arch/arm/include/asm/hardware/icst307.h
index 85932e9..8d0820a 100644
--- a/arch/arm/include/asm/hardware/icst307.h
+++ b/arch/arm/include/asm/hardware/icst307.h
@@ -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
diff --git a/arch/arm/include/asm/hardware/icst525.h b/arch/arm/include/asm/hardware/icst525.h
index 170deb2..42a274e 100644
--- a/arch/arm/include/asm/hardware/icst525.h
+++ b/arch/arm/include/asm/hardware/icst525.h
@@ -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