From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
To: linux-media@vger.kernel.org
Cc: Dariusz Marcinkiewicz <darekm@google.com>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH 2/6] cros-ec-cec: use cec_notifier_cec_adap_(un)register
Date: Mon, 15 Jul 2019 12:30:50 +0200 [thread overview]
Message-ID: <20190715103054.84849-3-hverkuil-cisco@xs4all.nl> (raw)
In-Reply-To: <20190715103054.84849-1-hverkuil-cisco@xs4all.nl>
Use cec_notifier_cec_adap_(un)register instead of
cec_notifier_get_conn, cec_notifier_put and cec_register_cec_notifier.
Also enable the CEC_CAP_CONNECTOR_INFO capability.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Neil Armstrong <narmstrong@baylibre.com>
---
.../media/platform/cros-ec-cec/cros-ec-cec.c | 68 +++++++++++--------
1 file changed, 38 insertions(+), 30 deletions(-)
diff --git a/drivers/media/platform/cros-ec-cec/cros-ec-cec.c b/drivers/media/platform/cros-ec-cec/cros-ec-cec.c
index 068df9888dbf..05463e4d76c2 100644
--- a/drivers/media/platform/cros-ec-cec/cros-ec-cec.c
+++ b/drivers/media/platform/cros-ec-cec/cros-ec-cec.c
@@ -206,10 +206,10 @@ static SIMPLE_DEV_PM_OPS(cros_ec_cec_pm_ops,
*/
struct cec_dmi_match {
- char *sys_vendor;
- char *product_name;
- char *devname;
- char *conn;
+ const char *sys_vendor;
+ const char *product_name;
+ const char *devname;
+ const char *conn;
};
static const struct cec_dmi_match cec_dmi_match_table[] = {
@@ -217,8 +217,8 @@ static const struct cec_dmi_match cec_dmi_match_table[] = {
{ "Google", "Fizz", "0000:00:02.0", "Port B" },
};
-static int cros_ec_cec_get_notifier(struct device *dev,
- struct cec_notifier **notify)
+static struct device *cros_ec_cec_find_hdmi_dev(struct device *dev,
+ const char **conn)
{
int i;
@@ -233,26 +233,24 @@ static int cros_ec_cec_get_notifier(struct device *dev,
d = bus_find_device_by_name(&pci_bus_type, NULL,
m->devname);
if (!d)
- return -EPROBE_DEFER;
-
- *notify = cec_notifier_get_conn(d, m->conn);
+ return ERR_PTR(-EPROBE_DEFER);
put_device(d);
- return 0;
+ *conn = m->conn;
+ return d;
}
}
/* Hardware support must be added in the cec_dmi_match_table */
dev_warn(dev, "CEC notifier not configured for this hardware\n");
- return -ENODEV;
+ return ERR_PTR(-ENODEV);
}
#else
-static int cros_ec_cec_get_notifier(struct device *dev,
- struct cec_notifier **notify)
+static struct device *cros_ec_cec_find_hdmi_dev(struct device *dev)
{
- return -ENODEV;
+ return ERR_PTR(-ENODEV);
}
#endif
@@ -262,8 +260,14 @@ static int cros_ec_cec_probe(struct platform_device *pdev)
struct cros_ec_dev *ec_dev = dev_get_drvdata(pdev->dev.parent);
struct cros_ec_device *cros_ec = ec_dev->ec_dev;
struct cros_ec_cec *cros_ec_cec;
+ struct device *hdmi_dev;
+ const char *conn = NULL;
int ret;
+ hdmi_dev = cros_ec_cec_find_hdmi_dev(&pdev->dev, &conn);
+ if (IS_ERR(hdmi_dev))
+ return PTR_ERR(hdmi_dev);
+
cros_ec_cec = devm_kzalloc(&pdev->dev, sizeof(*cros_ec_cec),
GFP_KERNEL);
if (!cros_ec_cec)
@@ -272,10 +276,6 @@ static int cros_ec_cec_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, cros_ec_cec);
cros_ec_cec->cros_ec = cros_ec;
- ret = cros_ec_cec_get_notifier(&pdev->dev, &cros_ec_cec->notify);
- if (ret)
- return ret;
-
ret = device_init_wakeup(&pdev->dev, 1);
if (ret) {
dev_err(&pdev->dev, "failed to initialize wakeup\n");
@@ -283,29 +283,39 @@ static int cros_ec_cec_probe(struct platform_device *pdev)
}
cros_ec_cec->adap = cec_allocate_adapter(&cros_ec_cec_ops, cros_ec_cec,
- DRV_NAME, CEC_CAP_DEFAULTS, 1);
+ DRV_NAME,
+ CEC_CAP_DEFAULTS |
+ CEC_CAP_CONNECTOR_INFO, 1);
if (IS_ERR(cros_ec_cec->adap))
return PTR_ERR(cros_ec_cec->adap);
+ cros_ec_cec->notify = cec_notifier_cec_adap_register(hdmi_dev, conn,
+ cros_ec_cec->adap);
+ if (!cros_ec_cec->notify) {
+ ret = -ENOMEM;
+ goto out_probe_adapter;
+ }
+
/* Get CEC events from the EC. */
cros_ec_cec->notifier.notifier_call = cros_ec_cec_event;
ret = blocking_notifier_chain_register(&cros_ec->event_notifier,
&cros_ec_cec->notifier);
if (ret) {
dev_err(&pdev->dev, "failed to register notifier\n");
- cec_delete_adapter(cros_ec_cec->adap);
- return ret;
+ goto out_probe_notify;
}
ret = cec_register_adapter(cros_ec_cec->adap, &pdev->dev);
- if (ret < 0) {
- cec_delete_adapter(cros_ec_cec->adap);
- return ret;
- }
-
- cec_register_cec_notifier(cros_ec_cec->adap, cros_ec_cec->notify);
+ if (ret < 0)
+ goto out_probe_notify;
return 0;
+
+out_probe_notify:
+ cec_notifier_cec_adap_unregister(cros_ec_cec->notify);
+out_probe_adapter:
+ cec_delete_adapter(cros_ec_cec->adap);
+ return ret;
}
static int cros_ec_cec_remove(struct platform_device *pdev)
@@ -323,11 +333,9 @@ static int cros_ec_cec_remove(struct platform_device *pdev)
return ret;
}
+ cec_notifier_cec_adap_unregister(cros_ec_cec->notify);
cec_unregister_adapter(cros_ec_cec->adap);
- if (cros_ec_cec->notify)
- cec_notifier_put(cros_ec_cec->notify);
-
return 0;
}
--
2.20.1
next prev parent reply other threads:[~2019-07-15 10:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-15 10:30 [PATCH 0/6] media: use cec_notifier_cec_adap_(un)register Hans Verkuil
2019-07-15 10:30 ` [PATCH 1/6] meson/ao-cec: " Hans Verkuil
2019-07-15 10:30 ` Hans Verkuil [this message]
2019-07-20 9:25 ` [PATCHv2 2/6] cros-ec-cec: " Hans Verkuil
2019-07-15 10:30 ` [PATCH 3/6] seco-cec: " Hans Verkuil
2019-07-15 10:30 ` [PATCH 4/6] s5p-cec: " Hans Verkuil
2019-07-15 12:37 ` Marek Szyprowski
2019-07-15 10:30 ` [PATCH 5/6] stih-cec: " Hans Verkuil
2019-07-15 10:30 ` [PATCH 6/6] tegra-cec: " Hans Verkuil
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