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From 9dae4a5ff13701f15f051e3911a83a1e497a4bc3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Sun, 27 Feb 2022 13:47:12 +0100
Subject: [PATCH] drm/mipi-dbi: Add driver_private member to struct
mipi_dbi_dev
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 1e7e8e1 upstream.
devm_drm_dev_alloc() can't allocate structures that embed a structure
which then again embeds drm_device. Workaround this by adding a
driver_private pointer to struct mipi_dbi_dev which the driver can use for
its additional state.
v3:
- Add documentation
Acked-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220227124713.39766-5-noralf@tronnes.org
---
include/drm/drm_mipi_dbi.h | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/include/drm/drm_mipi_dbi.h
+++ b/include/drm/drm_mipi_dbi.h
@@ -130,6 +130,14 @@ struct mipi_dbi_dev {
* @dbi: MIPI DBI interface
*/
struct mipi_dbi dbi;
+
+ /**
+ * @driver_private: Driver private data.
+ * Necessary for drivers with private data since devm_drm_dev_alloc()
+ * can't allocate structures that embed a structure which then again
+ * embeds drm_device.
+ */
+ void *driver_private;
};
static inline struct mipi_dbi_dev *drm_to_mipi_dbi_dev(struct drm_device *drm)
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