[PATCH v4 07/24] drm/bridge: anx7625: Switch to devm MIPI-DSI helpers

From: Maxime Ripard
Date: Fri Sep 10 2021 - 06:13:18 EST


Let's switch to the new devm MIPI-DSI function to register and attach
our secondary device.

Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
drivers/gpu/drm/bridge/analogix/anx7625.c | 20 +++++---------------
1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 1a871f6b6822..4adeb2bad03a 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1316,6 +1316,7 @@ static int anx7625_attach_dsi(struct anx7625_data *ctx)
.channel = 0,
.node = NULL,
};
+ int ret;

DRM_DEV_DEBUG_DRIVER(dev, "attach dsi\n");

@@ -1325,7 +1326,7 @@ static int anx7625_attach_dsi(struct anx7625_data *ctx)
return -EINVAL;
}

- dsi = mipi_dsi_device_register_full(host, &info);
+ dsi = devm_mipi_dsi_device_register_full(dev, host, &info);
if (IS_ERR(dsi)) {
DRM_DEV_ERROR(dev, "fail to create dsi device.\n");
return -EINVAL;
@@ -1337,10 +1338,10 @@ static int anx7625_attach_dsi(struct anx7625_data *ctx)
MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_MODE_VIDEO_HSE;

- if (mipi_dsi_attach(dsi) < 0) {
+ ret = devm_mipi_dsi_attach(dev, dsi);
+ if (ret) {
DRM_DEV_ERROR(dev, "fail to attach dsi to host.\n");
- mipi_dsi_device_unregister(dsi);
- return -EINVAL;
+ return ret;
}

ctx->dsi = dsi;
@@ -1350,16 +1351,6 @@ static int anx7625_attach_dsi(struct anx7625_data *ctx)
return 0;
}

-static void anx7625_bridge_detach(struct drm_bridge *bridge)
-{
- struct anx7625_data *ctx = bridge_to_anx7625(bridge);
-
- if (ctx->dsi) {
- mipi_dsi_detach(ctx->dsi);
- mipi_dsi_device_unregister(ctx->dsi);
- }
-}
-
static int anx7625_bridge_attach(struct drm_bridge *bridge,
enum drm_bridge_attach_flags flags)
{
@@ -1624,7 +1615,6 @@ static struct edid *anx7625_bridge_get_edid(struct drm_bridge *bridge,

static const struct drm_bridge_funcs anx7625_bridge_funcs = {
.attach = anx7625_bridge_attach,
- .detach = anx7625_bridge_detach,
.disable = anx7625_bridge_disable,
.mode_valid = anx7625_bridge_mode_valid,
.mode_set = anx7625_bridge_mode_set,
--
2.31.1