[PATCH v2] media: synopsys: hdmirx: replace use of system_unbound_wq with system_dfl_wq

[PATCH v2] media: synopsys: hdmirx: replace use of system_unbound_wq with system_dfl_wq

[Marco Crivellari]

This patch continues the effort to refactor workqueue APIs, which has begun
with the changes introducing new workqueues and a new alloc_workqueue flag:

   commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
   commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")

The point of the refactoring is to eventually alter the default behavior of
workqueues to become unbound by default so that their workload placement is
optimized by the scheduler.

Before that to happen, workqueue users must be converted to the better named
new workqueues with no intended behaviour changes:

   system_wq -> system_percpu_wq
   system_unbound_wq -> system_dfl_wq

This way the old obsolete workqueues (system_wq, system_unbound_wq) can be
removed in the future.

Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
---
Changes in v2:
- improved commit log
- rebased on v6.19

 drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
index c3007e09bc9f..9839a5143d54 100644
--- a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
+++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
@@ -1735,7 +1735,7 @@ static void process_signal_change(struct snps_hdmirx_dev *hdmirx_dev)
 			   FIFO_UNDERFLOW_INT_EN |
 			   HDMIRX_AXI_ERROR_INT_EN, 0);
 	hdmirx_reset_dma(hdmirx_dev);
-	queue_delayed_work(system_unbound_wq,
+	queue_delayed_work(system_dfl_wq,
 			   &hdmirx_dev->delayed_work_res_change,
 			   msecs_to_jiffies(50));
 }
@@ -2190,7 +2190,7 @@ static void hdmirx_delayed_work_res_change(struct work_struct *work)
 
 		if (hdmirx_wait_signal_lock(hdmirx_dev)) {
 			hdmirx_plugout(hdmirx_dev);
-			queue_delayed_work(system_unbound_wq,
+			queue_delayed_work(system_dfl_wq,
 					   &hdmirx_dev->delayed_work_hotplug,
 					   msecs_to_jiffies(200));
 		} else {
@@ -2209,7 +2209,7 @@ static irqreturn_t hdmirx_5v_det_irq_handler(int irq, void *dev_id)
 	val = gpiod_get_value(hdmirx_dev->detect_5v_gpio);
 	v4l2_dbg(3, debug, &hdmirx_dev->v4l2_dev, "%s: 5v:%d\n", __func__, val);
 
-	queue_delayed_work(system_unbound_wq,
+	queue_delayed_work(system_dfl_wq,
 			   &hdmirx_dev->delayed_work_hotplug,
 			   msecs_to_jiffies(10));
 
@@ -2441,7 +2441,7 @@ static void hdmirx_enable_irq(struct device *dev)
 	enable_irq(hdmirx_dev->dma_irq);
 	enable_irq(hdmirx_dev->det_irq);
 
-	queue_delayed_work(system_unbound_wq,
+	queue_delayed_work(system_dfl_wq,
 			   &hdmirx_dev->delayed_work_hotplug,
 			   msecs_to_jiffies(110));
 }
-- 
2.52.0

Re: [PATCH v2] media: synopsys: hdmirx: replace use of system_unbound_wq with system_dfl_wq

[Dmitry Osipenko]

On 2/12/26 12:28, Marco Crivellari wrote:
> This patch continues the effort to refactor workqueue APIs, which has begun
> with the changes introducing new workqueues and a new alloc_workqueue flag:
> 
>    commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
>    commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")
> 
> The point of the refactoring is to eventually alter the default behavior of
> workqueues to become unbound by default so that their workload placement is
> optimized by the scheduler.
> 
> Before that to happen, workqueue users must be converted to the better named
> new workqueues with no intended behaviour changes:
> 
>    system_wq -> system_percpu_wq
>    system_unbound_wq -> system_dfl_wq
> 
> This way the old obsolete workqueues (system_wq, system_unbound_wq) can be
> removed in the future.
> 
> Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
> Suggested-by: Tejun Heo <tj@kernel.org>
> Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
> ---
> Changes in v2:
> - improved commit log
> - rebased on v6.19
> 
>  drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
> index c3007e09bc9f..9839a5143d54 100644
> --- a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
> +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
> @@ -1735,7 +1735,7 @@ static void process_signal_change(struct snps_hdmirx_dev *hdmirx_dev)
>  			   FIFO_UNDERFLOW_INT_EN |
>  			   HDMIRX_AXI_ERROR_INT_EN, 0);
>  	hdmirx_reset_dma(hdmirx_dev);
> -	queue_delayed_work(system_unbound_wq,
> +	queue_delayed_work(system_dfl_wq,
>  			   &hdmirx_dev->delayed_work_res_change,
>  			   msecs_to_jiffies(50));
>  }
> @@ -2190,7 +2190,7 @@ static void hdmirx_delayed_work_res_change(struct work_struct *work)
>  
>  		if (hdmirx_wait_signal_lock(hdmirx_dev)) {
>  			hdmirx_plugout(hdmirx_dev);
> -			queue_delayed_work(system_unbound_wq,
> +			queue_delayed_work(system_dfl_wq,
>  					   &hdmirx_dev->delayed_work_hotplug,
>  					   msecs_to_jiffies(200));
>  		} else {
> @@ -2209,7 +2209,7 @@ static irqreturn_t hdmirx_5v_det_irq_handler(int irq, void *dev_id)
>  	val = gpiod_get_value(hdmirx_dev->detect_5v_gpio);
>  	v4l2_dbg(3, debug, &hdmirx_dev->v4l2_dev, "%s: 5v:%d\n", __func__, val);
>  
> -	queue_delayed_work(system_unbound_wq,
> +	queue_delayed_work(system_dfl_wq,
>  			   &hdmirx_dev->delayed_work_hotplug,
>  			   msecs_to_jiffies(10));
>  
> @@ -2441,7 +2441,7 @@ static void hdmirx_enable_irq(struct device *dev)
>  	enable_irq(hdmirx_dev->dma_irq);
>  	enable_irq(hdmirx_dev->det_irq);
>  
> -	queue_delayed_work(system_unbound_wq,
> +	queue_delayed_work(system_dfl_wq,
>  			   &hdmirx_dev->delayed_work_hotplug,
>  			   msecs_to_jiffies(110));
>  }

Acked-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>

-- 
Best regards,
Dmitry

Re: [PATCH v2] media: synopsys: hdmirx: replace use of system_unbound_wq with system_dfl_wq

[Marco Crivellari]

Hi,

On Thu, Feb 12, 2026 at 10:28 AM Marco Crivellari
<marco.crivellari@suse.com> wrote:
> [...]
>  drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

Gentle ping.

Thanks!

-- 

Marco Crivellari

L3 Support Engineer