diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power_well.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c index c7a1fcb9d6ad..5e88b930f5aa 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power_well.c +++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c @@ -8,7 +8,6 @@ #include "i915_drv.h" #include "i915_irq.h" #include "i915_reg.h" -#include "i915_utils.h" #include "intel_backlight_regs.h" #include "intel_combo_phy.h" #include "intel_combo_phy_regs.h" @@ -1127,6 +1126,8 @@ static void vlv_set_power_well(struct intel_display *display, u32 mask; u32 state; u32 ctrl; + u32 val; + int ret; mask = PUNIT_PWRGT_MASK(pw_idx); state = enable ? PUNIT_PWRGT_PWR_ON(pw_idx) : @@ -1134,10 +1135,8 @@ static void vlv_set_power_well(struct intel_display *display, vlv_punit_get(display->drm); -#define COND \ - ((vlv_punit_read(display->drm, PUNIT_REG_PWRGT_STATUS) & mask) == state) - - if (COND) + val = vlv_punit_read(display->drm, PUNIT_REG_PWRGT_STATUS); + if ((val & mask) == state) goto out; ctrl = vlv_punit_read(display->drm, PUNIT_REG_PWRGT_CTRL); @@ -1145,14 +1144,15 @@ static void vlv_set_power_well(struct intel_display *display, ctrl |= state; vlv_punit_write(display->drm, PUNIT_REG_PWRGT_CTRL, ctrl); - if (wait_for(COND, 100)) + ret = poll_timeout_us(val = vlv_punit_read(display->drm, PUNIT_REG_PWRGT_STATUS), + (val & mask) == state, + 500, 100 * 1000, false); + if (ret) drm_err(display->drm, "timeout setting power well state %08x (%08x)\n", state, vlv_punit_read(display->drm, PUNIT_REG_PWRGT_CTRL)); -#undef COND - out: vlv_punit_put(display->drm); } @@ -1716,23 +1716,24 @@ static void chv_set_pipe_power_well(struct intel_display *display, enum pipe pipe = PIPE_A; u32 state; u32 ctrl; + int ret; state = enable ? DP_SSS_PWR_ON(pipe) : DP_SSS_PWR_GATE(pipe); vlv_punit_get(display->drm); -#define COND \ - ((vlv_punit_read(display->drm, PUNIT_REG_DSPSSPM) & DP_SSS_MASK(pipe)) == state) - - if (COND) + ctrl = vlv_punit_read(display->drm, PUNIT_REG_DSPSSPM); + if ((ctrl & DP_SSS_MASK(pipe)) == state) goto out; - ctrl = vlv_punit_read(display->drm, PUNIT_REG_DSPSSPM); ctrl &= ~DP_SSC_MASK(pipe); ctrl |= enable ? DP_SSC_PWR_ON(pipe) : DP_SSC_PWR_GATE(pipe); vlv_punit_write(display->drm, PUNIT_REG_DSPSSPM, ctrl); - if (wait_for(COND, 100)) + ret = poll_timeout_us(ctrl = vlv_punit_read(display->drm, PUNIT_REG_DSPSSPM), + (ctrl & DP_SSS_MASK(pipe)) == state, + 500, 100 * 1000, false); + if (ret) drm_err(display->drm, "timeout setting power well state %08x (%08x)\n", state, |