drm/panel/truly-nt35597: Use refcounted allocation in place of devm_kzalloc()

Move to using the new API devm_drm_panel_alloc() to allocate the
panel. In the call to the new API, avoid using explicit type and use
__typeof() for more type safety.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260508-drm_panel_init_rm-v2-8-0bd4ac429971@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>

diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c b/drivers/gpu/drm/panel/panel-truly-nt35597.c
index d447db912a61ec958a4718ce49454f5f706e41db..f740b9257c09cdba434b817de4ae137c347a8c73 100644 (file)
--- a/drivers/gpu/drm/panel/panel-truly-nt35597.c
+++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c
@@ -476,8 +476,6 @@ static int truly_nt35597_panel_add(struct truly_nt35597 *ctx)
        /* dual port */
        gpiod_set_value(ctx->mode_gpio, 0);
 
-       drm_panel_init(&ctx->panel, dev, &truly_nt35597_drm_funcs,
-                      DRM_MODE_CONNECTOR_DSI);
        drm_panel_add(&ctx->panel);
 
        return 0;
@@ -523,10 +521,12 @@ static int truly_nt35597_probe(struct mipi_dsi_device *dsi)
                .node = NULL,
        };
 
-       ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+       ctx = devm_drm_panel_alloc(dev, __typeof(*ctx), panel,
+                                 &truly_nt35597_drm_funcs,
+                                 DRM_MODE_CONNECTOR_DSI);
 
-       if (!ctx)
-               return -ENOMEM;
+       if (IS_ERR(ctx))
+               return PTR_ERR(ctx);
 
        /*
         * This device represents itself as one with two input ports which are