linux-kernel - [PATCH 22/32] drm: renesas: rz-du: rzg2l_mipi_dsi: convert to the .attach

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Message-Id: <20250625-drm-dsi-host-no-device-ptr-v1-22-e36bc258a7c5@bootlin.com>
Date: Wed, 25 Jun 2025 18:45:26 +0200
From: Luca Ceresoli <luca.ceresoli@...tlin.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Inki Dae <inki.dae@...sung.com>, Jagan Teki <jagan@...rulasolutions.com>, 
 Marek Szyprowski <m.szyprowski@...sung.com>, 
 Jani Nikula <jani.nikula@...ux.intel.com>, 
 Dmitry Baryshkov <lumag@...nel.org>
Cc: Hui Pu <Hui.Pu@...ealthcare.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-sunxi@...ts.linux.dev, Luca Ceresoli <luca.ceresoli@...tlin.com>
Subject: [PATCH 22/32] drm: renesas: rz-du: rzg2l_mipi_dsi: convert to the
 .attach_new op

This op does not pass any pointer to the DSI device, so the DSI host driver
cannot store it.

Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
---
 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
index f87337c3cbb54559e9e8d416cbe801647f4a7688..33bd2d20be9c3f8d0c43b67d21e0e86566b48ab3 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
@@ -689,19 +689,19 @@ static const struct drm_bridge_funcs rzg2l_mipi_dsi_bridge_ops = {
  */
 
 static int rzg2l_mipi_dsi_host_attach(struct mipi_dsi_host *host,
-				      struct mipi_dsi_device *device)
+				      const struct mipi_dsi_bus_fmt *bus_fmt)
 {
 	struct rzg2l_mipi_dsi *dsi = host_to_rzg2l_mipi_dsi(host);
 	int ret;
 
-	if (device->lanes > dsi->num_data_lanes) {
+	if (bus_fmt->lanes > dsi->num_data_lanes) {
 		dev_err(dsi->dev,
 			"Number of lines of device (%u) exceeds host (%u)\n",
-			device->lanes, dsi->num_data_lanes);
+			bus_fmt->lanes, dsi->num_data_lanes);
 		return -EINVAL;
 	}
 
-	switch (mipi_dsi_pixel_format_to_bpp(device->format)) {
+	switch (mipi_dsi_pixel_format_to_bpp(bus_fmt->format)) {
 	case 24:
 		break;
 	case 18:
@@ -714,13 +714,13 @@ static int rzg2l_mipi_dsi_host_attach(struct mipi_dsi_host *host,
 		}
 		break;
 	default:
-		dev_err(dsi->dev, "Unsupported format 0x%04x\n", device->format);
+		dev_err(dsi->dev, "Unsupported format 0x%04x\n", bus_fmt->format);
 		return -EINVAL;
 	}
 
-	dsi->lanes = device->lanes;
-	dsi->format = device->format;
-	dsi->mode_flags = device->mode_flags;
+	dsi->lanes = bus_fmt->lanes;
+	dsi->format = bus_fmt->format;
+	dsi->mode_flags = bus_fmt->mode_flags;
 
 	dsi->next_bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node,
 						  1, 0);
@@ -904,7 +904,7 @@ static ssize_t rzg2l_mipi_dsi_host_transfer(struct mipi_dsi_host *host,
 }
 
 static const struct mipi_dsi_host_ops rzg2l_mipi_dsi_host_ops = {
-	.attach = rzg2l_mipi_dsi_host_attach,
+	.attach_new = rzg2l_mipi_dsi_host_attach,
 	.detach = rzg2l_mipi_dsi_host_detach,
 	.transfer = rzg2l_mipi_dsi_host_transfer,
 };

-- 
2.49.0