[PATCH v2 4/4] drm/panel/panel-simple: Use the new allocation in place of devm_kzalloc()

From: Anusha Srivatsa
Date: Thu Mar 27 2025 - 10:57:09 EST


Start using the new helper that does the refcounted
allocations.

v2: check error condition (Luca)

Signed-off-by: Anusha Srivatsa <asrivats@xxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-simple.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 6ba600f97aa4c8daae577823fcf17ef31b0eb46f..df718c4a86cb7dc0cd126e807d33306e5a21d8a0 100644
--- 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");

--
2.48.1