From: Dariusz Marcinkiewicz <darekm@google.com>
To: dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org,
hverkuil-cisco@xs4all.nl
Cc: Dariusz Marcinkiewicz <darekm@google.com>,
Russell King <linux@armlinux.org.uk>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v6 4/8] drm: tda998x: use cec_notifier_conn_(un)register
Date: Tue, 13 Aug 2019 13:02:36 +0200 [thread overview]
Message-ID: <20190813110300.83025-5-darekm@google.com> (raw)
In-Reply-To: <20190813110300.83025-1-darekm@google.com>
Use the new cec_notifier_conn_(un)register() functions to
(un)register the notifier for the HDMI connector, and fill
in the cec_connector_info.
Changes since v2:
- cec_notifier_phys_addr_invalidate where appropriate,
- don't check for NULL notifier before calling
cec_notifier_conn_unregister.
Changes since v1:
Add memory barrier to make sure that the notifier
becomes visible to the irq thread once it is
fully constructed.
Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
drivers/gpu/drm/i2c/tda998x_drv.c | 33 +++++++++++++++++++++----------
1 file changed, 23 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index 61e042918a7fc..19a63ee1b3f53 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -804,9 +804,14 @@ static irqreturn_t tda998x_irq_thread(int irq, void *data)
if (lvl & CEC_RXSHPDLEV_HPD) {
tda998x_edid_delay_start(priv);
} else {
+ struct cec_notifier *notify;
+
schedule_work(&priv->detect_work);
- cec_notifier_set_phys_addr(priv->cec_notify,
- CEC_PHYS_ADDR_INVALID);
+
+ notify = READ_ONCE(priv->cec_notify);
+ if (notify)
+ cec_notifier_phys_addr_invalidate(
+ notify);
}
handled = true;
@@ -1331,6 +1336,8 @@ static int tda998x_connector_init(struct tda998x_priv *priv,
struct drm_device *drm)
{
struct drm_connector *connector = &priv->connector;
+ struct cec_connector_info conn_info;
+ struct cec_notifier *notifier;
int ret;
connector->interlace_allowed = 1;
@@ -1347,6 +1354,19 @@ static int tda998x_connector_init(struct tda998x_priv *priv,
if (ret)
return ret;
+ cec_fill_conn_info_from_drm(&conn_info, connector);
+
+ notifier = cec_notifier_conn_register(priv->cec_glue.parent,
+ NULL, &conn_info);
+ if (!notifier)
+ return -ENOMEM;
+ /*
+ * Make sure that tda998x_irq_thread does see the notifier
+ * when it fully constructed.
+ */
+ smp_wmb();
+ priv->cec_notify = notifier;
+
drm_connector_attach_encoder(&priv->connector,
priv->bridge.encoder);
@@ -1790,8 +1810,7 @@ static void tda998x_destroy(struct device *dev)
i2c_unregister_device(priv->cec);
- if (priv->cec_notify)
- cec_notifier_put(priv->cec_notify);
+ cec_notifier_conn_unregister(priv->cec_notify);
}
static int tda998x_create(struct device *dev)
@@ -1916,12 +1935,6 @@ static int tda998x_create(struct device *dev)
cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
}
- priv->cec_notify = cec_notifier_get(dev);
- if (!priv->cec_notify) {
- ret = -ENOMEM;
- goto fail;
- }
-
priv->cec_glue.parent = dev;
priv->cec_glue.data = priv;
priv->cec_glue.init = tda998x_cec_hook_init;
--
2.23.0.rc1.153.gdeed80330f-goog
next prev parent reply other threads:[~2019-08-13 11:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-13 11:02 [PATCH v6 0/8] drm: cec: convert DRM drivers to the new notifier API Dariusz Marcinkiewicz
2019-08-13 11:02 ` [PATCH v6 1/8] drm/i915/intel_hdmi: use cec_notifier_conn_(un)register Dariusz Marcinkiewicz
2019-08-13 11:02 ` [PATCH v6 2/8] dw-hdmi-cec: use cec_notifier_cec_adap_(un)register Dariusz Marcinkiewicz
2019-08-13 11:02 ` [PATCH v6 3/8] tda9950: " Dariusz Marcinkiewicz
2019-08-13 11:32 ` Russell King - ARM Linux admin
2019-08-13 11:44 ` Hans Verkuil
2019-08-13 11:02 ` Dariusz Marcinkiewicz [this message]
2019-08-13 11:20 ` [PATCH v6 4/8] drm: tda998x: use cec_notifier_conn_(un)register Russell King - ARM Linux admin
2019-08-14 10:52 ` Dariusz Marcinkiewicz
2019-08-13 11:02 ` [PATCH v6 5/8] drm: sti: " Dariusz Marcinkiewicz
2019-08-13 11:02 ` [PATCH v6 6/8] drm: tegra: " Dariusz Marcinkiewicz
2019-08-13 11:02 ` [PATCH v6 7/8] drm: dw-hdmi: " Dariusz Marcinkiewicz
2019-08-13 11:37 ` Hans Verkuil
2019-08-14 10:49 ` Dariusz Marcinkiewicz
2019-08-13 11:02 ` [PATCH v6 8/8] drm: exynos: exynos_hdmi: " Dariusz Marcinkiewicz
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=20190813110300.83025-5-darekm@google.com \
--to=darekm@google.com \
--cc=airlied@linux.ie \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=hverkuil-cisco@xs4all.nl \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=linux@armlinux.org.uk \
/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).