Re: [PATCHv9 2/2] drm: tda998x: set the connector info
On 10/17/19 10:11 AM, Russell King - ARM Linux admin wrote:
> On Thu, Oct 17, 2019 at 09:28:42AM +0200, Hans Verkuil wrote:
>> From: Dariusz Marcinkiewicz
>>
>> Fill in the cec_connector_info when calling cec_notifier_conn_register().
>>
>> Signed-off-by: Dariusz Marcinkiewicz
>> Tested-by: Hans Verkuil
>> Signed-off-by: Hans Verkuil
>> ---
>> drivers/gpu/drm/i2c/tda998x_drv.c | 33 +++
>> 1 file changed, 25 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c
>> b/drivers/gpu/drm/i2c/tda998x_drv.c
>> index dde8decb52a6..b0620842fa3a 100644
>> --- a/drivers/gpu/drm/i2c/tda998x_drv.c
>> +++ b/drivers/gpu/drm/i2c/tda998x_drv.c
>> @@ -82,6 +82,9 @@ struct tda998x_priv {
>> u8 audio_port_enable[AUDIO_ROUTE_NUM];
>> struct tda9950_glue cec_glue;
>> struct gpio_desc *calib;
>> +
>> +/* protect cec_notify */
>> +struct mutex cec_notify_mutex;
>> struct cec_notifier *cec_notify;
>> };
>>
>> @@ -805,8 +808,11 @@ static irqreturn_t tda998x_irq_thread(int irq, void
>> *data)
>> tda998x_edid_delay_start(priv);
>> } else {
>> schedule_work(&priv->detect_work);
>> +
>> +mutex_lock(&priv->cec_notify_mutex);
>> cec_notifier_phys_addr_invalidate(
>> priv->cec_notify);
>> +mutex_unlock(&priv->cec_notify_mutex);
>> }
>>
>> handled = true;
>> @@ -1331,6 +1337,8 @@ 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 +1355,17 @@ 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;
>> +
>> +mutex_lock(&priv->cec_notify_mutex);
>> +priv->cec_notify = notifier;
>> +mutex_unlock(&priv->cec_notify_mutex);
>
> You haven't taken on board what I said about the mutex in this
> instance.
That's because I didn't. See the cover letter.
I need this info from the author of the patch, Dariusz. Once I have that,
and we agree with the reasoning, then I'll post a new patch for it.
For now all I am interested in is getting patch 1/2 merged. Patch 2/2 won't
be merged any time soon.
Regards,
Hans
>
>> +
>> drm_connector_attach_encoder(&priv->connector,
>> priv->bridge.encoder);
>>
>> @@ -1366,6 +1385,11 @@ static void tda998x_bridge_detach(struct drm_bridge
>> *bridge)
>> {
>> struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
>>
>> +mutex_lock(&priv->cec_notify_mutex);
>> +cec_notifier_conn_unregister(priv->cec_notify);
>> +priv->cec_notify = NULL;
>> +mutex_unlock(&priv->cec_notify_mutex);
>> +
>> drm_connector_cleanup(&priv->connector);
>> }
>>
>> @@ -1789,8 +1813,6 @@ static void tda998x_destroy(struct device *dev)
>> cancel_work_sync(&priv->detect_work);
>>
>> i2c_unregister_device(priv->cec);
>> -
>> -cec_notifier_conn_unregister(priv->cec_notify);
>> }
>>
>> static int tda998x_create(struct device *dev)
>> @@ -1811,6 +1833,7 @@ static int tda998x_create(struct device *dev)
>> mutex_init(&priv->mutex); /* protect the page access */
>> mutex_init(&priv->audio_mutex); /* protect access from audio thread */
>> mutex_init(&priv->edid_mutex);
>> +mutex_init(&priv->cec_notify_mutex);
>> INIT_LIST_HEAD(&priv->bridge.list);
>> init_waitqueue_head(&priv->edid_delay_waitq);
>> timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
>> @@ -1915,12 +1938,6 @@ static int tda998x_create(struct device *dev)
>> cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
>> }
>>
>> -priv->cec_notify = cec_notifier_conn_register(dev, NULL, NULL);
>> -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
>>
>>
>
Re: [PATCHv9 2/2] drm: tda998x: set the connector info
On Thu, Oct 17, 2019 at 09:28:42AM +0200, Hans Verkuil wrote:
> From: Dariusz Marcinkiewicz
>
> Fill in the cec_connector_info when calling cec_notifier_conn_register().
>
> Signed-off-by: Dariusz Marcinkiewicz
> Tested-by: Hans Verkuil
> Signed-off-by: Hans Verkuil
> ---
> drivers/gpu/drm/i2c/tda998x_drv.c | 33 +++
> 1 file changed, 25 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c
> b/drivers/gpu/drm/i2c/tda998x_drv.c
> index dde8decb52a6..b0620842fa3a 100644
> --- a/drivers/gpu/drm/i2c/tda998x_drv.c
> +++ b/drivers/gpu/drm/i2c/tda998x_drv.c
> @@ -82,6 +82,9 @@ struct tda998x_priv {
> u8 audio_port_enable[AUDIO_ROUTE_NUM];
> struct tda9950_glue cec_glue;
> struct gpio_desc *calib;
> +
> + /* protect cec_notify */
> + struct mutex cec_notify_mutex;
> struct cec_notifier *cec_notify;
> };
>
> @@ -805,8 +808,11 @@ static irqreturn_t tda998x_irq_thread(int irq, void
> *data)
> tda998x_edid_delay_start(priv);
> } else {
> schedule_work(&priv->detect_work);
> +
> + mutex_lock(&priv->cec_notify_mutex);
> cec_notifier_phys_addr_invalidate(
> priv->cec_notify);
> + mutex_unlock(&priv->cec_notify_mutex);
> }
>
> handled = true;
> @@ -1331,6 +1337,8 @@ 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 +1355,17 @@ 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;
> +
> + mutex_lock(&priv->cec_notify_mutex);
> + priv->cec_notify = notifier;
> + mutex_unlock(&priv->cec_notify_mutex);
You haven't taken on board what I said about the mutex in this
instance.
> +
> drm_connector_attach_encoder(&priv->connector,
>priv->bridge.encoder);
>
> @@ -1366,6 +1385,11 @@ static void tda998x_bridge_detach(struct drm_bridge
> *bridge)
> {
> struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
>
> + mutex_lock(&priv->cec_notify_mutex);
> + cec_notifier_conn_unregister(priv->cec_notify);
> + priv->cec_notify = NULL;
> + mutex_unlock(&priv->cec_notify_mutex);
> +
> drm_connector_cleanup(&priv->connector);
> }
>
> @@ -1789,8 +1813,6 @@ static void tda998x_destroy(struct device *dev)
> cancel_work_sync(&priv->detect_work);
>
> i2c_unregister_device(priv->cec);
> -
> - cec_notifier_conn_unregister(priv->cec_notify);
> }
>
> static int tda998x_create(struct device *dev)
> @@ -1811,6 +1833,7 @@ static int tda998x_create(struct device *dev)
> mutex_init(&priv->mutex); /* protect the page access */
> mutex_init(&priv->audio_mutex); /* protect access from audio thread */
> mutex_init(&priv->edid_mutex);
> + mutex_init(&priv->cec_notify_mutex);
> INIT_LIST_HEAD(&priv->bridge.list);
> init_waitqueue_head(&priv->edid_delay_waitq);
> timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
> @@ -1915,12 +1938,6 @@ static int tda998x_create(struct device *dev)
> cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
> }
>
> - priv->cec_notify = cec_notifier_conn_register(dev, NULL, NULL);
> - 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
>
>
--
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[PATCHv9 2/2] drm: tda998x: set the connector info
From: Dariusz Marcinkiewicz
Fill in the cec_connector_info when calling cec_notifier_conn_register().
Signed-off-by: Dariusz Marcinkiewicz
Tested-by: Hans Verkuil
Signed-off-by: Hans Verkuil
---
drivers/gpu/drm/i2c/tda998x_drv.c | 33 +++
1 file changed, 25 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c
b/drivers/gpu/drm/i2c/tda998x_drv.c
index dde8decb52a6..b0620842fa3a 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -82,6 +82,9 @@ struct tda998x_priv {
u8 audio_port_enable[AUDIO_ROUTE_NUM];
struct tda9950_glue cec_glue;
struct gpio_desc *calib;
+
+ /* protect cec_notify */
+ struct mutex cec_notify_mutex;
struct cec_notifier *cec_notify;
};
@@ -805,8 +808,11 @@ static irqreturn_t tda998x_irq_thread(int irq, void *data)
tda998x_edid_delay_start(priv);
} else {
schedule_work(&priv->detect_work);
+
+ mutex_lock(&priv->cec_notify_mutex);
cec_notifier_phys_addr_invalidate(
priv->cec_notify);
+ mutex_unlock(&priv->cec_notify_mutex);
}
handled = true;
@@ -1331,6 +1337,8 @@ 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 +1355,17 @@ 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;
+
+ mutex_lock(&priv->cec_notify_mutex);
+ priv->cec_notify = notifier;
+ mutex_unlock(&priv->cec_notify_mutex);
+
drm_connector_attach_encoder(&priv->connector,
priv->bridge.encoder);
@@ -1366,6 +1385,11 @@ static void tda998x_bridge_detach(struct drm_bridge
*bridge)
{
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
+ mutex_lock(&priv->cec_notify_mutex);
+ cec_notifier_conn_unregister(priv->cec_notify);
+ priv->cec_notify = NULL;
+ mutex_unlock(&priv->cec_notify_mutex);
+
drm_connector_cleanup(&priv->connector);
}
@@ -1789,8 +1813,6 @@ static void tda998x_destroy(struct device *dev)
cancel_work_sync(&priv->detect_work);
i2c_unregister_device(priv->cec);
-
- cec_notifier_conn_unregister(priv->cec_notify);
}
static int tda998x_create(struct device *dev)
@@ -1811,6 +1833,7 @@ static int tda998x_create(struct device *dev)
mutex_init(&priv->mutex); /* protect the page access */
mutex_init(&priv->audio_mutex); /* protect access from audio thread */
mutex_init(&priv->edid_mutex);
+ mutex_init(&priv->cec_notify_mutex);
INIT_LIST_HEAD(&priv->bridge.list);
init_waitqueue_head(&priv->edid_delay_waitq);
timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
@@ -1915,12 +1938,6 @@ static int tda998x_create(struct device *dev)
cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
}
- priv->cec_notify = cec_notifier_conn_register(dev, NULL, NULL);
- 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
