ARM: ICST: indirect s2div and idx2s arrays via icst_params
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
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e73a46a3d3
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232eaf7f26
10 changed files with 42 additions and 14 deletions
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@ -22,11 +22,13 @@
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/*
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/*
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* Divisors for each OD setting.
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* Divisors for each OD setting.
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*/
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*/
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static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 3, 6 };
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const unsigned char icst307_s2div[8] = { 10, 2, 8, 4, 5, 7, 3, 6 };
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EXPORT_SYMBOL(icst307_s2div);
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unsigned long icst307_hz(const struct icst_params *p, struct icst_vco vco)
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unsigned long icst307_hz(const struct icst_params *p, struct icst_vco vco)
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{
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{
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return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * s2div[vco.s]);
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return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
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}
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}
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EXPORT_SYMBOL(icst307_hz);
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EXPORT_SYMBOL(icst307_hz);
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@ -34,7 +36,9 @@ EXPORT_SYMBOL(icst307_hz);
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/*
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/*
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* Ascending divisor S values.
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* Ascending divisor S values.
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*/
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*/
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static unsigned char idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 };
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const unsigned char icst307_idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 };
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EXPORT_SYMBOL(icst307_idx2s);
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struct icst_vco
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struct icst_vco
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icst307_hz_to_vco(const struct icst_params *p, unsigned long freq)
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icst307_hz_to_vco(const struct icst_params *p, unsigned long freq)
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@ -48,19 +52,19 @@ icst307_hz_to_vco(const struct icst_params *p, unsigned long freq)
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* that the PLL output is within spec.
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* that the PLL output is within spec.
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*/
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*/
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do {
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do {
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f = freq * s2div[idx2s[i]];
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f = freq * p->s2div[p->idx2s[i]];
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/*
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/*
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* f must be between 6MHz and 200MHz (3.3 or 5V)
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* f must be between 6MHz and 200MHz (3.3 or 5V)
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*/
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*/
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if (f > p->vco_min && f <= p->vco_max)
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if (f > p->vco_min && f <= p->vco_max)
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break;
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break;
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} while (i < ARRAY_SIZE(idx2s));
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} while (i < 8);
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if (i >= ARRAY_SIZE(idx2s))
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if (i >= 8)
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return vco;
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return vco;
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vco.s = idx2s[i];
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vco.s = p->idx2s[i];
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/*
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/*
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* Now find the closest divisor combination
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* Now find the closest divisor combination
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@ -19,11 +19,13 @@
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/*
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/*
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* Divisors for each OD setting.
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* Divisors for each OD setting.
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*/
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*/
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static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 };
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const unsigned char icst525_s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 };
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EXPORT_SYMBOL(icst525_s2div);
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unsigned long icst525_hz(const struct icst_params *p, struct icst_vco vco)
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unsigned long icst525_hz(const struct icst_params *p, struct icst_vco vco)
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{
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{
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return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * s2div[vco.s]);
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return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
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}
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}
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EXPORT_SYMBOL(icst525_hz);
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EXPORT_SYMBOL(icst525_hz);
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@ -31,7 +33,9 @@ EXPORT_SYMBOL(icst525_hz);
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/*
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/*
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* Ascending divisor S values.
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* Ascending divisor S values.
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*/
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*/
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static unsigned char idx2s[] = { 1, 3, 4, 7, 5, 2, 6, 0 };
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const unsigned char icst525_idx2s[8] = { 1, 3, 4, 7, 5, 2, 6, 0 };
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EXPORT_SYMBOL(icst525_idx2s);
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struct icst_vco
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struct icst_vco
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icst525_hz_to_vco(const struct icst_params *p, unsigned long freq)
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icst525_hz_to_vco(const struct icst_params *p, unsigned long freq)
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@ -45,7 +49,7 @@ icst525_hz_to_vco(const struct icst_params *p, unsigned long freq)
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* that the PLL output is within spec.
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* that the PLL output is within spec.
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*/
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*/
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do {
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do {
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f = freq * s2div[idx2s[i]];
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f = freq * p->s2div[p->idx2s[i]];
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/*
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/*
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* f must be between 10MHz and
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* f must be between 10MHz and
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@ -53,12 +57,12 @@ icst525_hz_to_vco(const struct icst_params *p, unsigned long freq)
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*/
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*/
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if (f > p->vco_min && f <= p->vco_max)
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if (f > p->vco_min && f <= p->vco_max)
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break;
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break;
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} while (i < ARRAY_SIZE(idx2s));
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} while (i < 8);
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if (i >= ARRAY_SIZE(idx2s))
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if (i >= 8)
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return vco;
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return vco;
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vco.s = idx2s[i];
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vco.s = p->idx2s[i];
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/*
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/*
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* Now find the closest divisor combination
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* Now find the closest divisor combination
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@ -22,6 +22,8 @@ struct icst_params {
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unsigned short vd_max; /* inclusive */
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unsigned short vd_max; /* inclusive */
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unsigned char rd_min; /* inclusive */
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unsigned char rd_min; /* inclusive */
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unsigned char rd_max; /* inclusive */
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unsigned char rd_max; /* inclusive */
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const unsigned char *s2div; /* chip specific s2div array */
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const unsigned char *idx2s; /* chip specific idx2s array */
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};
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};
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struct icst_vco {
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struct icst_vco {
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@ -28,4 +28,7 @@ struct icst_vco icst307_hz_to_vco(const struct icst_params *p, unsigned long fre
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#define ICST307_VCO_MIN 6000000
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#define ICST307_VCO_MIN 6000000
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#define ICST307_VCO_MAX 200000000
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#define ICST307_VCO_MAX 200000000
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extern const unsigned char icst307_s2div[];
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extern const unsigned char icst307_idx2s[];
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#endif
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#endif
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@ -27,4 +27,7 @@ struct icst_vco icst525_hz_to_vco(const struct icst_params *p, unsigned long fre
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#define ICST525_VCO_MAX_3V 200000000
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#define ICST525_VCO_MAX_3V 200000000
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#define ICST525_VCO_MAX_5V 320000000
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#define ICST525_VCO_MAX_5V 320000000
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extern const unsigned char icst525_s2div[];
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extern const unsigned char icst525_idx2s[];
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#endif
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#endif
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@ -39,6 +39,8 @@ static const struct icst_params lclk_params = {
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.vd_max = 132,
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.vd_max = 132,
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.rd_min = 24,
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.rd_min = 24,
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.rd_max = 24,
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.rd_max = 24,
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.s2div = icst525_s2div,
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.idx2s = icst525_idx2s,
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};
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};
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static const struct icst_params cclk_params = {
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static const struct icst_params cclk_params = {
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@ -49,6 +51,8 @@ static const struct icst_params cclk_params = {
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.vd_max = 160,
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.vd_max = 160,
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.rd_min = 24,
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.rd_min = 24,
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.rd_max = 24,
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.rd_max = 24,
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.s2div = icst525_s2div,
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.idx2s = icst525_idx2s,
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};
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};
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/*
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/*
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@ -48,6 +48,8 @@ static const struct icst_params impd1_vco_params = {
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.vd_max = 519,
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.vd_max = 519,
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.rd_min = 3,
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.rd_min = 3,
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.rd_max = 120,
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.rd_max = 120,
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.s2div = icst525_s2div,
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.idx2s = icst525_idx2s,
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};
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};
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static void impd1_setvco(struct clk *clk, struct icst_vco vco)
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static void impd1_setvco(struct clk *clk, struct icst_vco vco)
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@ -276,6 +276,8 @@ static const struct icst_params cp_auxvco_params = {
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.vd_max = 263,
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.vd_max = 263,
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.rd_min = 3,
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.rd_min = 3,
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.rd_max = 65,
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.rd_max = 65,
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.s2div = icst525_s2div,
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.idx2s = icst525_idx2s,
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};
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};
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static void cp_auxvco_set(struct clk *clk, struct icst_vco vco)
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static void cp_auxvco_set(struct clk *clk, struct icst_vco vco)
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@ -281,6 +281,8 @@ static const struct icst_params realview_oscvco_params = {
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.vd_max = 511 + 8,
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.vd_max = 511 + 8,
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.rd_min = 1 + 2,
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.rd_min = 1 + 2,
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.rd_max = 127 + 2,
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.rd_max = 127 + 2,
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.s2div = icst307_s2div,
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.idx2s = icst307_idx2s,
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};
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};
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static void realview_oscvco_set(struct clk *clk, struct icst_vco vco)
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static void realview_oscvco_set(struct clk *clk, struct icst_vco vco)
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@ -387,6 +387,8 @@ static const struct icst_params versatile_oscvco_params = {
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.vd_max = 511 + 8,
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.vd_max = 511 + 8,
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.rd_min = 1 + 2,
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.rd_min = 1 + 2,
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.rd_max = 127 + 2,
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.rd_max = 127 + 2,
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.s2div = icst307_s2div,
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.idx2s = icst307_idx2s,
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};
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};
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static void versatile_oscvco_set(struct clk *clk, struct icst_vco vco)
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static void versatile_oscvco_set(struct clk *clk, struct icst_vco vco)
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