From a26cc2934331b57b5a7164bff344f0a2ec245fc0 Mon Sep 17 00:00:00 2001

From: Saravana Kannan <saravanak@google.com>

Date: Thu, 9 Mar 2023 22:39:09 -0800

Subject: [PATCH] drm/mipi-dsi: Set the fwnode for mipi_dsi_device

Git-commit: a26cc2934331b57b5a7164bff344f0a2ec245fc0

Patch-mainline: v6.4-rc2

References: git-fixes

After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle

detection more robust"), fw_devlink prints an error when consumer

devices don't have their fwnode set. This used to be ignored silently.

Set the fwnode mipi_dsi_device so fw_devlink can find them and properly

track their dependencies.

This fixes errors like this:

[    0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device link with regulator-lcd-1v8

[    0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device link with backlight-dsi

Reported-by: Martin Kepplinger <martin.kepplinger@puri.sm>

Link: https://lore.kernel.org/lkml/2a8e407f4f18c9350f8629a2b5fa18673355b2ae.camel@puri.sm/

Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")

Signed-off-by: Saravana Kannan <saravanak@google.com>

Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>

Link: https://lore.kernel.org/r/20230310063910.2474472-1-saravanak@google.com

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Acked-by: Takashi Iwai <tiwai@suse.de>

---

 drivers/gpu/drm/drm_mipi_dsi.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c

index b41aaf2bb9f1..7923cc21b78e 100644

--- a/drivers/gpu/drm/drm_mipi_dsi.c

+++ b/drivers/gpu/drm/drm_mipi_dsi.c

@@ -221,7 +221,7 @@ mipi_dsi_device_register_full(struct mipi_dsi_host *host,

 		return dsi;

 	}

-	dsi->dev.of_node = info->node;

+	device_set_node(&dsi->dev, of_fwnode_handle(info->node));

 	dsi->channel = info->channel;

 	strlcpy(dsi->name, info->type, sizeof(dsi->name));

-- 

2.35.3