From 55eb19200d650ead73139ee8444db9119718fd31 Mon Sep 17 00:00:00 2001 From: Sergey Zhuravlevich Date: Tue, 12 May 2020 14:23:15 +0200 Subject: [PATCH 02/49] MLK-24065-1: drm: bridge: cadence: fix dp_aux_transfer write return value After exiting the loop in DP_AUX_NATIVE_WRITE it was returning 0. It's supposed to return the number of bytes transferred on success. Signed-off-by: Sergey Zhuravlevich Acked-by: Sandor Yu Tested-By: Sandor Yu --- drivers/gpu/drm/bridge/cadence/cdns-dp-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c b/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c index acb5c860da73..aa92029f44e9 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c @@ -67,6 +67,8 @@ static ssize_t dp_aux_transfer(struct drm_dp_aux *aux, return ret; } + msg->reply = DP_AUX_NATIVE_REPLY_ACK; + return msg->size; } if (msg->request == DP_AUX_NATIVE_READ) { -- 2.29.2