From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>
Cc: linux-renesas-soc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
dri-devel@lists.freedesktop.org
Subject: [PATCH] drm: rcar-du: Use drmm_encoder_alloc() to manage encoder
Date: Wed, 13 Jan 2021 17:02:53 +0000 [thread overview]
Message-ID: <20210113170253.443820-1-kieran.bingham+renesas@ideasonboard.com> (raw)
The encoder allocation was converted to a DRM managed resource at the
same time as the addition of a new helper drmm_encoder_alloc() which
simplifies the same process.
Convert the custom drm managed resource allocation of the encoder
with the helper to simplify the implementation, and prevent hitting a
WARN_ON() due to the handling the drm_encoder_init() call directly
without registering a .destroy() function op.
Fixes: f5f16725edbc ("drm: rcar-du: Use DRM-managed allocation for encoders")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
---
drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 31 +++++------------------
1 file changed, 6 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
index ba8c6038cd63..ca3761772211 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
@@ -48,21 +48,12 @@ static unsigned int rcar_du_encoder_count_ports(struct device_node *node)
static const struct drm_encoder_funcs rcar_du_encoder_funcs = {
};
-static void rcar_du_encoder_release(struct drm_device *dev, void *res)
-{
- struct rcar_du_encoder *renc = res;
-
- drm_encoder_cleanup(&renc->base);
- kfree(renc);
-}
-
int rcar_du_encoder_init(struct rcar_du_device *rcdu,
enum rcar_du_output output,
struct device_node *enc_node)
{
struct rcar_du_encoder *renc;
struct drm_bridge *bridge;
- int ret;
/*
* Locate the DRM bridge from the DT node. For the DPAD outputs, if the
@@ -101,26 +92,16 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu,
return -ENOLINK;
}
- renc = kzalloc(sizeof(*renc), GFP_KERNEL);
- if (renc == NULL)
- return -ENOMEM;
-
- renc->output = output;
-
dev_dbg(rcdu->dev, "initializing encoder %pOF for output %u\n",
enc_node, output);
- ret = drm_encoder_init(&rcdu->ddev, &renc->base, &rcar_du_encoder_funcs,
- DRM_MODE_ENCODER_NONE, NULL);
- if (ret < 0) {
- kfree(renc);
- return ret;
- }
+ renc = drmm_encoder_alloc(&rcdu->ddev, struct rcar_du_encoder, base,
+ &rcar_du_encoder_funcs, DRM_MODE_ENCODER_NONE,
+ NULL);
+ if (!renc)
+ return -ENOMEM;
- ret = drmm_add_action_or_reset(&rcdu->ddev, rcar_du_encoder_release,
- renc);
- if (ret)
- return ret;
+ renc->output = output;
/*
* Attach the bridge to the encoder. The bridge will create the
--
2.25.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
next reply other threads:[~2021-01-13 17:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-13 17:02 Kieran Bingham [this message]
2021-01-13 22:45 ` [PATCH] drm: rcar-du: Use drmm_encoder_alloc() to manage encoder Laurent Pinchart
2021-01-15 13:27 ` Kieran Bingham
2021-01-14 10:00 ` Geert Uytterhoeven
2021-03-01 10:30 ` Geert Uytterhoeven
2021-03-01 11:52 ` Kieran Bingham
2021-03-02 21:23 ` Laurent Pinchart
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210113170253.443820-1-kieran.bingham+renesas@ideasonboard.com \
--to=kieran.bingham+renesas@ideasonboard.com \
--cc=airlied@linux.ie \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=geert+renesas@glider.be \
--cc=laurent.pinchart@ideasonboard.com \
--cc=linux-renesas-soc@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).