From: jinlong zhang <[email protected]> [why] while read edid return defer, then it enter to msleep, but it actually took more time during msleep, this will cause remaining edid read fail.
[how] Replacing msleep with udelay, it will not take any extra time, edid return pass finally. Signed-off-by: jinlong zhang <[email protected]> Reviewed-by: Wenjing Liu <[email protected]> Acked-by: Qingqing Zhuo <[email protected]> --- drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index 743042d5905a..cdcad82765e0 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -653,7 +653,7 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc, if ((*payload->reply == AUX_TRANSACTION_REPLY_AUX_DEFER) || (*payload->reply == AUX_TRANSACTION_REPLY_I2C_OVER_AUX_DEFER)) { if (payload->defer_delay > 0) - msleep(payload->defer_delay); + udelay(payload->defer_delay * 1000); } } break; -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
