diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_pps.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_pps.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c index b64d0b30f5b1..327e0de86f1e 100644 --- a/drivers/gpu/drm/i915/display/intel_pps.c +++ b/drivers/gpu/drm/i915/display/intel_pps.c @@ -4,6 +4,7 @@ */ #include <linux/debugfs.h> +#include <linux/iopoll.h> #include <drm/drm_print.h> @@ -608,6 +609,8 @@ static void wait_panel_status(struct intel_dp *intel_dp, struct intel_display *display = to_intel_display(intel_dp); struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); i915_reg_t pp_stat_reg, pp_ctrl_reg; + int ret; + u32 val; lockdep_assert_held(&display->pps.mutex); @@ -624,13 +627,18 @@ static void wait_panel_status(struct intel_dp *intel_dp, intel_de_read(display, pp_stat_reg), intel_de_read(display, pp_ctrl_reg)); - if (intel_de_wait(display, pp_stat_reg, mask, value, 5000)) + ret = poll_timeout_us(val = intel_de_read(display, pp_stat_reg), + (val & mask) == value, + 10 * 1000, 5000 * 1000, true); + if (ret) { drm_err(display->drm, "[ENCODER:%d:%s] %s panel status timeout: PP_STATUS: 0x%08x PP_CONTROL: 0x%08x\n", dig_port->base.base.base.id, dig_port->base.base.name, pps_name(intel_dp), intel_de_read(display, pp_stat_reg), intel_de_read(display, pp_ctrl_reg)); + return; + } drm_dbg_kms(display->drm, "Wait complete\n"); } |