From 806d51358f9fa237d25b5ec333809c979c84ff82 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 30 Sep 2021 14:24:33 +0300
Subject: drm/i915/dsi: return -EBUSY instead of -1
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Git-commit: b90acd0987c81e4c8d7b4e7995ff3cecd16b2122
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Avoid using the incidental -EPERM. Also remove useless comment.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/37df1edc6d3745997cec2dfe41520d9f704e14b4.1633000838.git.jani.nikula@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/icl_dsi.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index 0daa90058ee3..9ee62707ec72 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -169,9 +169,8 @@ static int dsi_send_pkt_hdr(struct intel_dsi_host *host,
enum transcoder dsi_trans = dsi_port_to_transcoder(host->port);
u32 tmp;
- /* check if header credit available */
if (!wait_for_header_credits(dev_priv, dsi_trans, 1))
- return -1;
+ return -EBUSY;
tmp = intel_de_read(dev_priv, DSI_CMD_TXHDR(dsi_trans));
--
2.38.1