diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dpll.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dpll.c | 54 |
1 files changed, 35 insertions, 19 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c index 999badfe2906..2255ad651486 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll.c +++ b/drivers/gpu/drm/i915/display/intel_dpll.c @@ -314,10 +314,11 @@ int pnv_calc_dpll_params(int refclk, struct dpll *clock) { clock->m = clock->m2 + 2; clock->p = clock->p1 * clock->p2; - 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); + + clock->vco = clock->n == 0 ? 0 : + DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); + clock->dot = clock->p == 0 ? 0 : + DIV_ROUND_CLOSEST(clock->vco, clock->p); return clock->dot; } @@ -331,10 +332,11 @@ int i9xx_calc_dpll_params(int refclk, struct dpll *clock) { clock->m = i9xx_dpll_compute_m(clock); clock->p = clock->p1 * clock->p2; - if (WARN_ON(clock->n + 2 == 0 || clock->p == 0)) - return 0; - clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2); - clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); + + clock->vco = clock->n + 2 == 0 ? 0 : + DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2); + clock->dot = clock->p == 0 ? 0 : + DIV_ROUND_CLOSEST(clock->vco, clock->p); return clock->dot; } @@ -343,10 +345,11 @@ int vlv_calc_dpll_params(int refclk, struct dpll *clock) { clock->m = clock->m1 * clock->m2; 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); + + clock->vco = clock->n == 0 ? 0 : + DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); + clock->dot = clock->p == 0 ? 0 : + DIV_ROUND_CLOSEST(clock->vco, clock->p); return clock->dot; } @@ -355,11 +358,11 @@ int chv_calc_dpll_params(int refclk, struct dpll *clock) { clock->m = clock->m1 * clock->m2; 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); + + clock->vco = clock->n == 0 ? 0 : + DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, clock->m), clock->n << 22); + clock->dot = clock->p == 0 ? 0 : + DIV_ROUND_CLOSEST(clock->vco, clock->p); return clock->dot; } @@ -1179,6 +1182,8 @@ static int ilk_crtc_compute_clock(struct intel_atomic_state *state, refclk, NULL, &crtc_state->dpll)) return -EINVAL; + i9xx_calc_dpll_params(refclk, &crtc_state->dpll); + ilk_compute_dpll(crtc_state, &crtc_state->dpll, &crtc_state->dpll); @@ -1253,6 +1258,8 @@ static int chv_crtc_compute_clock(struct intel_atomic_state *state, refclk, NULL, &crtc_state->dpll)) return -EINVAL; + chv_calc_dpll_params(refclk, &crtc_state->dpll); + chv_compute_dpll(crtc_state); /* FIXME this is a mess */ @@ -1275,9 +1282,10 @@ static int vlv_crtc_compute_clock(struct intel_atomic_state *state, if (!crtc_state->clock_set && !vlv_find_best_dpll(limit, crtc_state, crtc_state->port_clock, - refclk, NULL, &crtc_state->dpll)) { + refclk, NULL, &crtc_state->dpll)) return -EINVAL; - } + + vlv_calc_dpll_params(refclk, &crtc_state->dpll); vlv_compute_dpll(crtc_state); @@ -1327,6 +1335,8 @@ static int g4x_crtc_compute_clock(struct intel_atomic_state *state, refclk, NULL, &crtc_state->dpll)) return -EINVAL; + i9xx_calc_dpll_params(refclk, &crtc_state->dpll); + i9xx_compute_dpll(crtc_state, &crtc_state->dpll, &crtc_state->dpll); @@ -1365,6 +1375,8 @@ static int pnv_crtc_compute_clock(struct intel_atomic_state *state, refclk, NULL, &crtc_state->dpll)) return -EINVAL; + pnv_calc_dpll_params(refclk, &crtc_state->dpll); + i9xx_compute_dpll(crtc_state, &crtc_state->dpll, &crtc_state->dpll); @@ -1401,6 +1413,8 @@ static int i9xx_crtc_compute_clock(struct intel_atomic_state *state, refclk, NULL, &crtc_state->dpll)) return -EINVAL; + i9xx_calc_dpll_params(refclk, &crtc_state->dpll); + i9xx_compute_dpll(crtc_state, &crtc_state->dpll, &crtc_state->dpll); @@ -1441,6 +1455,8 @@ static int i8xx_crtc_compute_clock(struct intel_atomic_state *state, refclk, NULL, &crtc_state->dpll)) return -EINVAL; + i9xx_calc_dpll_params(refclk, &crtc_state->dpll); + i8xx_compute_dpll(crtc_state, &crtc_state->dpll, &crtc_state->dpll); |