drm/panel/panel-simple: Use the new allocation in place of devm_kzalloc()

Start using the new helper that does the refcounted
allocations.

Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Link: https://lore.kernel.org/r/20250331-b4-panel-refcounting-v4-4-dad50c60c6c9@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 6ba600f97aa4c8daae577823fcf17ef31b0eb46f..df718c4a86cb7dc0cd126e807d33306e5a21d8a0 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -579,9 +579,10 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
        u32 bus_flags;
        int err;
 
-       panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
-       if (!panel)
-               return -ENOMEM;
+       panel = devm_drm_panel_alloc(dev, struct panel_simple, base,
+                                    &panel_simple_funcs, desc->connector_type);
+       if (IS_ERR(panel))
+               return PTR_ERR(panel);
 
        panel->desc = desc;
 
@@ -694,8 +695,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
        pm_runtime_set_autosuspend_delay(dev, 1000);
        pm_runtime_use_autosuspend(dev);
 
-       drm_panel_init(&panel->base, dev, &panel_simple_funcs, connector_type);
-
        err = drm_panel_of_backlight(&panel->base);
        if (err) {
                dev_err_probe(dev, err, "Could not find backlight\n");