[PATCH 03/10] drm/panel/novatek-nt37700f: Use refcounted allocation in place of devm_kzalloc()

From: Albert Esteve

Date: Thu May 07 2026 - 07:53:54 EST


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.

Signed-off-by: Albert Esteve <aesteve@xxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-novatek-nt37700f.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-novatek-nt37700f.c b/drivers/gpu/drm/panel/panel-novatek-nt37700f.c
index 74f46a268c0f6..c221dd498fed4 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt37700f.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt37700f.c
@@ -225,9 +225,12 @@ static int nt37700f_tianma_probe(struct mipi_dsi_device *dsi)
struct nt37700f_tianma *ctx;
int ret;

- ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
+ ctx = devm_drm_panel_alloc(dev, __typeof(*ctx), panel,
+ &nt37700f_tianma_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);

ctx->supply = devm_regulator_get(dev, "power");
if (IS_ERR(ctx->supply))
@@ -247,8 +250,6 @@ static int nt37700f_tianma_probe(struct mipi_dsi_device *dsi)
dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;

- drm_panel_init(&ctx->panel, dev, &nt37700f_tianma_panel_funcs,
- DRM_MODE_CONNECTOR_DSI);
ctx->panel.prepare_prev_first = true;

ctx->panel.backlight = nt37700f_tianma_create_backlight(dsi);

--
2.53.0