ARM: ICST: use Hz instead of kHz
This makes the ICST support fit more nicely with the clk API, eliminating the need to *1000 and /1000 in places. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
parent
4de2edbd15
commit
64fceb1dcd
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@ -24,12 +24,12 @@
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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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static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 3, 6 };
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unsigned long icst307_khz(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) * s2div[vco.s]);
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}
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}
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EXPORT_SYMBOL(icst307_khz);
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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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@ -37,7 +37,7 @@ EXPORT_SYMBOL(icst307_khz);
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static unsigned char idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 };
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static unsigned char idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 };
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struct icst_vco
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struct icst_vco
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icst307_khz_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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{
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{
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struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
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struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
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unsigned long f;
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unsigned long f;
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@ -94,4 +94,4 @@ icst307_khz_to_vco(const struct icst_params *p, unsigned long freq)
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return vco;
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return vco;
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}
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}
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EXPORT_SYMBOL(icst307_khz_to_vco);
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EXPORT_SYMBOL(icst307_hz_to_vco);
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@ -21,12 +21,12 @@
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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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static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 };
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unsigned long icst525_khz(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) * s2div[vco.s]);
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}
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}
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EXPORT_SYMBOL(icst525_khz);
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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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@ -34,7 +34,7 @@ EXPORT_SYMBOL(icst525_khz);
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static unsigned char idx2s[] = { 1, 3, 4, 7, 5, 2, 6, 0 };
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static unsigned char idx2s[] = { 1, 3, 4, 7, 5, 2, 6, 0 };
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struct icst_vco
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struct icst_vco
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icst525_khz_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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{
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{
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struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
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struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
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unsigned long f;
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unsigned long f;
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@ -92,4 +92,4 @@ icst525_khz_to_vco(const struct icst_params *p, unsigned long freq)
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return vco;
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return vco;
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}
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}
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EXPORT_SYMBOL(icst525_khz_to_vco);
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EXPORT_SYMBOL(icst525_hz_to_vco);
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@ -18,14 +18,14 @@
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#include <asm/hardware/icst.h>
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#include <asm/hardware/icst.h>
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unsigned long icst307_khz(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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struct icst_vco icst307_khz_to_vco(const struct icst_params *p, unsigned long freq);
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struct icst_vco icst307_hz_to_vco(const struct icst_params *p, unsigned long freq);
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/*
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/*
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* ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V).
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* ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V).
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* This frequency is pre-output divider.
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* This frequency is pre-output divider.
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*/
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*/
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#define ICST307_VCO_MIN 6000
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#define ICST307_VCO_MIN 6000000
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#define ICST307_VCO_MAX 200000
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#define ICST307_VCO_MAX 200000000
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#endif
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#endif
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@ -16,15 +16,15 @@
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#include <asm/hardware/icst.h>
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#include <asm/hardware/icst.h>
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unsigned long icst525_khz(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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struct icst_vco icst525_khz_to_vco(const struct icst_params *p, unsigned long freq);
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struct icst_vco icst525_hz_to_vco(const struct icst_params *p, unsigned long freq);
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/*
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/*
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* ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V).
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* ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V).
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* This frequency is pre-output divider.
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* This frequency is pre-output divider.
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*/
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*/
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#define ICST525_VCO_MIN 10000
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#define ICST525_VCO_MIN 10000000
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#define ICST525_VCO_MAX_3V 200000
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#define ICST525_VCO_MAX_3V 200000000
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#define ICST525_VCO_MAX_5V 320000
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#define ICST525_VCO_MAX_5V 320000000
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#endif
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#endif
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@ -38,8 +38,8 @@ EXPORT_SYMBOL(clk_get_rate);
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long clk_round_rate(struct clk *clk, unsigned long rate)
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long clk_round_rate(struct clk *clk, unsigned long rate)
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{
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{
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struct icst_vco vco;
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struct icst_vco vco;
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vco = icst525_khz_to_vco(clk->params, rate / 1000);
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vco = icst525_hz_to_vco(clk->params, rate);
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return icst525_khz(clk->params, vco) * 1000;
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return icst525_hz(clk->params, vco);
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}
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}
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EXPORT_SYMBOL(clk_round_rate);
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EXPORT_SYMBOL(clk_round_rate);
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@ -50,8 +50,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
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if (clk->setvco) {
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if (clk->setvco) {
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struct icst_vco vco;
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struct icst_vco vco;
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vco = icst525_khz_to_vco(clk->params, rate / 1000);
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vco = icst525_hz_to_vco(clk->params, rate);
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clk->rate = icst525_khz(clk->params, vco) * 1000;
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clk->rate = icst525_hz(clk->params, vco);
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clk->setvco(clk, vco);
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clk->setvco(clk, vco);
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ret = 0;
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ret = 0;
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}
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}
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@ -32,7 +32,7 @@ static struct cpufreq_driver integrator_driver;
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#define CM_LOCK IO_ADDRESS(INTEGRATOR_HDR_LOCK)
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#define CM_LOCK IO_ADDRESS(INTEGRATOR_HDR_LOCK)
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static const struct icst_params lclk_params = {
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static const struct icst_params lclk_params = {
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.ref = 24000,
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.ref = 24000000,
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.vco_max = ICST525_VCO_MAX_5V,
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.vco_max = ICST525_VCO_MAX_5V,
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.vd_min = 8,
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.vd_min = 8,
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.vd_max = 132,
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.vd_max = 132,
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@ -41,7 +41,7 @@ static const struct icst_params lclk_params = {
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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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.ref = 24000,
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.ref = 24000000,
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.vco_max = ICST525_VCO_MAX_5V,
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.vco_max = ICST525_VCO_MAX_5V,
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.vd_min = 12,
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.vd_min = 12,
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.vd_max = 160,
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.vd_max = 160,
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@ -60,11 +60,11 @@ static int integrator_verify_policy(struct cpufreq_policy *policy)
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policy->cpuinfo.min_freq,
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policy->cpuinfo.min_freq,
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policy->cpuinfo.max_freq);
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policy->cpuinfo.max_freq);
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vco = icst525_khz_to_vco(&cclk_params, policy->max);
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vco = icst525_hz_to_vco(&cclk_params, policy->max * 1000);
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policy->max = icst525_khz(&cclk_params, vco);
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policy->max = icst525_hz(&cclk_params, vco) / 1000;
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vco = icst525_khz_to_vco(&cclk_params, policy->min);
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vco = icst525_hz_to_vco(&cclk_params, policy->min * 1000);
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policy->min = icst525_khz(&cclk_params, vco);
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policy->min = icst525_hz(&cclk_params, vco) / 1000;
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cpufreq_verify_within_limits(policy,
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cpufreq_verify_within_limits(policy,
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policy->cpuinfo.min_freq,
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policy->cpuinfo.min_freq,
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@ -106,17 +106,17 @@ static int integrator_set_target(struct cpufreq_policy *policy,
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}
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}
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vco.v = cm_osc & 255;
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vco.v = cm_osc & 255;
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vco.r = 22;
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vco.r = 22;
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freqs.old = icst525_khz(&cclk_params, vco);
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freqs.old = icst525_hz(&cclk_params, vco) / 1000;
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/* icst525_khz_to_vco rounds down -- so we need the next
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/* icst525_hz_to_vco rounds down -- so we need the next
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* larger freq in case of CPUFREQ_RELATION_L.
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* larger freq in case of CPUFREQ_RELATION_L.
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*/
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*/
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if (relation == CPUFREQ_RELATION_L)
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if (relation == CPUFREQ_RELATION_L)
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target_freq += 999;
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target_freq += 999;
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if (target_freq > policy->max)
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if (target_freq > policy->max)
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target_freq = policy->max;
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target_freq = policy->max;
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vco = icst525_khz_to_vco(&cclk_params, target_freq);
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vco = icst525_hz_to_vco(&cclk_params, target_freq * 1000);
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freqs.new = icst525_khz(&cclk_params, vco);
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freqs.new = icst525_hz(&cclk_params, vco) / 1000;
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freqs.cpu = policy->cpu;
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freqs.cpu = policy->cpu;
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@ -174,7 +174,7 @@ static unsigned int integrator_get(unsigned int cpu)
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vco.v = cm_osc & 255;
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vco.v = cm_osc & 255;
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vco.r = 22;
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vco.r = 22;
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current_freq = icst525_khz(&cclk_params, vco); /* current freq */
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current_freq = icst525_hz(&cclk_params, vco) / 1000; /* current freq */
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set_cpus_allowed(current, cpus_allowed);
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set_cpus_allowed(current, cpus_allowed);
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@ -41,7 +41,7 @@ struct impd1_module {
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};
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};
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static const struct icst_params impd1_vco_params = {
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static const struct icst_params impd1_vco_params = {
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.ref = 24000, /* 24 MHz */
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.ref = 24000000, /* 24 MHz */
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.vco_max = ICST525_VCO_MAX_3V,
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.vco_max = ICST525_VCO_MAX_3V,
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.vd_min = 12,
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.vd_min = 12,
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.vd_max = 519,
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.vd_max = 519,
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vco.r = (val >> 9) & 0x7f;
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vco.r = (val >> 9) & 0x7f;
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vco.s = (val >> 16) & 7;
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vco.s = (val >> 16) & 7;
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pr_debug("IM-PD1: VCO%d clock is %ld kHz\n",
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pr_debug("IM-PD1: VCO%d clock is %ld Hz\n",
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vconr, icst525_khz(&impd1_vco_params, vco));
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vconr, icst525_hz(&impd1_vco_params, vco));
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#endif
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#endif
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}
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}
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#define CM_AUXOSC IO_ADDRESS(INTEGRATOR_HDR_BASE + 0x1c)
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#define CM_AUXOSC IO_ADDRESS(INTEGRATOR_HDR_BASE + 0x1c)
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static const struct icst_params cp_auxvco_params = {
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static const struct icst_params cp_auxvco_params = {
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.ref = 24000,
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.ref = 24000000,
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.vco_max = ICST525_VCO_MAX_5V,
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.vco_max = ICST525_VCO_MAX_5V,
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.vd_min = 8,
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.vd_min = 8,
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.vd_max = 263,
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.vd_max = 263,
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long clk_round_rate(struct clk *clk, unsigned long rate)
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long clk_round_rate(struct clk *clk, unsigned long rate)
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{
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{
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struct icst_vco vco;
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struct icst_vco vco;
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vco = icst307_khz_to_vco(clk->params, rate / 1000);
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vco = icst307_hz_to_vco(clk->params, rate);
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return icst307_khz(clk->params, vco) * 1000;
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return icst307_hz(clk->params, vco);
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}
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}
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EXPORT_SYMBOL(clk_round_rate);
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EXPORT_SYMBOL(clk_round_rate);
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if (clk->setvco) {
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if (clk->setvco) {
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struct icst_vco vco;
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struct icst_vco vco;
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vco = icst307_khz_to_vco(clk->params, rate / 1000);
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vco = icst307_hz_to_vco(clk->params, rate);
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clk->rate = icst307_khz(clk->params, vco) * 1000;
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clk->rate = icst307_hz(clk->params, vco);
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clk->setvco(clk, vco);
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clk->setvco(clk, vco);
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ret = 0;
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ret = 0;
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}
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}
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* Clock handling
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* Clock handling
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*/
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*/
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static const struct icst_params realview_oscvco_params = {
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static const struct icst_params realview_oscvco_params = {
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.ref = 24000,
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.ref = 24000000,
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.vco_max = ICST307_VCO_MAX,
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.vco_max = ICST307_VCO_MAX,
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.vd_min = 4 + 8,
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.vd_min = 4 + 8,
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.vd_max = 511 + 8,
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.vd_max = 511 + 8,
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long clk_round_rate(struct clk *clk, unsigned long rate)
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long clk_round_rate(struct clk *clk, unsigned long rate)
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{
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{
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struct icst_vco vco;
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struct icst_vco vco;
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vco = icst307_khz_to_vco(clk->params, rate / 1000);
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vco = icst307_hz_to_vco(clk->params, rate);
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return icst307_khz(clk->params, vco) * 1000;
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return icst307_hz(clk->params, vco);
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}
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}
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EXPORT_SYMBOL(clk_round_rate);
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EXPORT_SYMBOL(clk_round_rate);
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if (clk->setvco) {
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if (clk->setvco) {
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struct icst_vco vco;
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struct icst_vco vco;
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vco = icst307_khz_to_vco(clk->params, rate / 1000);
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vco = icst307_hz_to_vco(clk->params, rate);
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clk->rate = icst307_khz(clk->params, vco) * 1000;
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clk->rate = icst307_hz(clk->params, vco);
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clk->setvco(clk, vco);
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clk->setvco(clk, vco);
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ret = 0;
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ret = 0;
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}
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}
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@ -380,7 +380,7 @@ static struct mmci_platform_data mmc0_plat_data = {
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* Clock handling
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* Clock handling
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*/
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*/
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static const struct icst_params versatile_oscvco_params = {
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static const struct icst_params versatile_oscvco_params = {
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.ref = 24000,
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.ref = 24000000,
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.vco_max = ICST307_VCO_MAX,
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.vco_max = ICST307_VCO_MAX,
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.vd_min = 4 + 8,
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.vd_min = 4 + 8,
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.vd_max = 511 + 8,
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.vd_max = 511 + 8,
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