@@ -254,12 +254,12 @@ static const struct intel_limit ilk_limits_dual_lvds_100m = {
static const struct intel_limit intel_limits_vlv = {
/*
- * These are the data rate limits (measured in fast clocks)
+ * These are based on the data rate limits (measured in fast clocks)
* since those are the strictest limits we have. The fast
* clock and actual rate limits are more relaxed, so checking
* them would make no difference.
*/
- .dot = { .min = 25000 * 5, .max = 270000 * 5 },
+ .dot = { .min = 25000, .max = 270000 },
.vco = { .min = 4000000, .max = 6000000 },
.n = { .min = 1, .max = 7 },
.m1 = { .min = 2, .max = 3 },
@@ -270,12 +270,12 @@ static const struct intel_limit intel_limits_vlv = {
static const struct intel_limit intel_limits_chv = {
/*
- * These are the data rate limits (measured in fast clocks)
+ * These are based on the data rate limits (measured in fast clocks)
* since those are the strictest limits we have. The fast
* clock and actual rate limits are more relaxed, so checking
* them would make no difference.
*/
- .dot = { .min = 25000 * 5, .max = 540000 * 5},
+ .dot = { .min = 25000, .max = 540000 },
.vco = { .min = 4800000, .max = 6480000 },
.n = { .min = 1, .max = 1 },
.m1 = { .min = 2, .max = 2 },
@@ -337,26 +337,26 @@ int i9xx_calc_dpll_params(int refclk, struct dpll *clock)
int vlv_calc_dpll_params(int refclk, struct dpll *clock)
{
clock->m = clock->m1 * clock->m2;
- clock->p = clock->p1 * clock->p2;
+ clock->p = clock->p1 * clock->p2 * 5;
if (WARN_ON(clock->n == 0 || clock->p == 0))
return 0;
clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
- return clock->dot / 5;
+ return clock->dot;
}
int chv_calc_dpll_params(int refclk, struct dpll *clock)
{
clock->m = clock->m1 * clock->m2;
- clock->p = clock->p1 * clock->p2;
+ clock->p = clock->p1 * clock->p2 * 5;
if (WARN_ON(clock->n == 0 || clock->p == 0))
return 0;
clock->vco = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, clock->m),
clock->n << 22);
clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
- return clock->dot / 5;
+ return clock->dot;
}
/*
@@ -659,8 +659,6 @@ vlv_find_best_dpll(const struct intel_limit *limit,
int max_n = min(limit->n.max, refclk / 19200);
bool found = false;
- target *= 5; /* fast clock */
-
memset(best_clock, 0, sizeof(*best_clock));
/* based on hardware requirement, prefer smaller n to precision */
@@ -668,7 +666,7 @@ vlv_find_best_dpll(const struct intel_limit *limit,
for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
clock.p2 -= clock.p2 > 10 ? 2 : 1) {
- clock.p = clock.p1 * clock.p2;
+ clock.p = clock.p1 * clock.p2 * 5;
/* based on hardware requirement, prefer bigger m1,m2 values */
for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
unsigned int ppm;
@@ -729,7 +727,6 @@ chv_find_best_dpll(const struct intel_limit *limit,
*/
clock.n = 1;
clock.m1 = 2;
- target *= 5; /* fast clock */
for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
for (clock.p2 = limit->p2.p2_fast;
@@ -737,7 +734,7 @@ chv_find_best_dpll(const struct intel_limit *limit,
clock.p2 -= clock.p2 > 10 ? 2 : 1) {
unsigned int error_ppm;
- clock.p = clock.p1 * clock.p2;
+ clock.p = clock.p1 * clock.p2 * 5;
m2 = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(target, clock.p * clock.n) << 22,
refclk * clock.m1);
@@ -583,7 +583,7 @@ static u32 bxt_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port)
clock.p1 = (vgpu_vreg_t(vgpu, BXT_PORT_PLL_EBB_0(phy, ch)) & PORT_PLL_P1_MASK) >> PORT_PLL_P1_SHIFT;
clock.p2 = (vgpu_vreg_t(vgpu, BXT_PORT_PLL_EBB_0(phy, ch)) & PORT_PLL_P2_MASK) >> PORT_PLL_P2_SHIFT;
clock.m = clock.m1 * clock.m2;
- clock.p = clock.p1 * clock.p2;
+ clock.p = clock.p1 * clock.p2 * 5;
if (clock.n == 0 || clock.p == 0) {
gvt_dbg_dpy("vgpu-%d PORT_%c PLL has invalid divider\n", vgpu->id, port_name(port));
@@ -593,7 +593,7 @@ static u32 bxt_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port)
clock.vco = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, clock.m), clock.n << 22);
clock.dot = DIV_ROUND_CLOSEST(clock.vco, clock.p);
- dp_br = clock.dot / 5;
+ dp_br = clock.dot;
out:
return dp_br;