linux-kernel - [PATCH v3 3/5] drm/sitronix/st7571-i2c: Add an indirection level to parse DT

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Message-ID: <20250715110411.448343-4-javierm@redhat.com>
Date: Tue, 15 Jul 2025 13:03:52 +0200
From: Javier Martinez Canillas <javierm@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: ipedrosa@...hat.com,
	Javier Martinez Canillas <javierm@...hat.com>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Marcus Folkesson <marcus.folkesson@...il.com>,
	David Airlie <airlied@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Simona Vetter <simona@...ll.ch>,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH v3 3/5] drm/sitronix/st7571-i2c: Add an indirection level to parse DT

Other Sitronix display controllers might need a different parsing DT
logic, so lets add a .parse_dt callback to struct st7571_panel_data.

Suggested-by: Thomas Zimmermann <tzimmermann@...e.de>
Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>
Reviewed-by: Marcus Folkesson <marcus.folkesson@...il.com>
---

(no changes since v1)

 drivers/gpu/drm/sitronix/st7571-i2c.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sitronix/st7571-i2c.c b/drivers/gpu/drm/sitronix/st7571-i2c.c
index fd9d6c701cc4..f9c4fedb3cca 100644
--- a/drivers/gpu/drm/sitronix/st7571-i2c.c
+++ b/drivers/gpu/drm/sitronix/st7571-i2c.c
@@ -92,6 +92,7 @@ struct st7571_panel_constraints {
 
 struct st7571_panel_data {
 	int (*init)(struct st7571_device *st7571);
+	int (*parse_dt)(struct st7571_device *st7571);
 	struct st7571_panel_constraints constraints;
 };
 
@@ -881,7 +882,7 @@ static int st7571_probe(struct i2c_client *client)
 	i2c_set_clientdata(client, st7571);
 	st7571->pdata = device_get_match_data(&client->dev);
 
-	ret = st7571_parse_dt(st7571);
+	ret = st7571->pdata->parse_dt(st7571);
 	if (ret)
 		return ret;
 
@@ -964,6 +965,7 @@ static void st7571_remove(struct i2c_client *client)
 
 struct st7571_panel_data st7571_config = {
 	.init = st7571_lcd_init,
+	.parse_dt = st7571_parse_dt,
 	.constraints = {
 		.min_nlines = 1,
 		.max_nlines = 128,
-- 
2.49.0