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From: Marek Vasut <marex@denx.de>
To: dri-devel@lists.freedesktop.org
Cc: Marek Vasut <marex@denx.de>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Neil Armstrong <narmstrong@baylibre.com>,
	robert.foss@linaro.org, Maxime Ripard <maxime@cerno.tech>,
	Sam Ravnborg <sam@ravnborg.org>
Subject: [PATCH 1/3] drm/bridge: tc358767: Handle dsi_lanes == 0 as invalid
Date: Thu, 19 May 2022 01:36:00 +0200	[thread overview]
Message-ID: <20220518233602.248185-1-marex@denx.de> (raw)

Handle empty data-lanes = < >; property, which translates to
dsi_lanes = 0 as invalid.

Fixes: bbfd3190b6562 ("drm/bridge: tc358767: Add DSI-to-DPI mode support")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 drivers/gpu/drm/bridge/tc358767.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 7366968dd7b21..84e6b5aa8dd1f 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1902,7 +1902,7 @@ static int tc_mipi_dsi_host_attach(struct tc_data *tc)
 	of_node_put(host_node);
 	of_node_put(endpoint);
 
-	if (dsi_lanes < 0 || dsi_lanes > 4)
+	if (dsi_lanes <= 0 || dsi_lanes > 4)
 		return -EINVAL;
 
 	if (!host)
-- 
2.35.1


             reply	other threads:[~2022-05-18 23:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-18 23:36 Marek Vasut [this message]
2022-05-18 23:36 ` [PATCH 2/3] drm/bridge: tc358767: Report DSI-to-(e)DP as supported Marek Vasut
2022-05-19  7:46   ` Andrzej Hajda
2022-05-19  7:52   ` Lucas Stach
2022-05-18 23:36 ` [PATCH 3/3] drm/bridge: tc358767: Make sure Refclk clock are enabled Marek Vasut
2022-05-19  7:57   ` Lucas Stach
2022-05-19 12:05     ` Marek Vasut
2022-05-19  7:44 ` [PATCH 1/3] drm/bridge: tc358767: Handle dsi_lanes == 0 as invalid Andrzej Hajda
2022-05-19  7:50 ` Lucas Stach
2022-05-19  9:45   ` Marek Vasut

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