linux-kernel - [PATCH 01/23] media: atomisp: get rid of phys event abstractions

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Date:   Tue, 16 Nov 2021 11:28:42 +0000
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Aditya Srivastava <yashsri421@...il.com>,
        Alex Dewar <alex.dewar90@...il.com>,
        Aline Santana Cordeiro <alinesantanacordeiro@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Arnd Bergmann <arnd@...db.de>,
        Baokun Li <libaokun1@...wei.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Kaixu Xia <kaixuxia@...cent.com>,
        Martiros Shakhzadyan <vrzh@...h.net>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Shaokun Zhang <zhangshaokun@...ilicon.com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Tsuchiya Yuto <kitakar@...il.com>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev
Subject: [PATCH 01/23] media: atomisp: get rid of phys event abstractions

ia_css_dequeue_event() is just an alias to ia_css_dequeue_psys_event(),
and atomisp_css_dequeue_event() do nothing but calling the event
dequeue logic.

Get rid of both abstractions, calling the function directly.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---

To mailbombing on a large number of people, only mailing lists were C/C on the cover.
See [PATCH 00/23] at: https://lore.kernel.org/all/cover.1637061474.git.mchehab+huawei@kernel.org/

 drivers/staging/media/atomisp/pci/atomisp_cmd.c |  2 +-
 .../staging/media/atomisp/pci/atomisp_compat.h  |  2 --
 .../media/atomisp/pci/atomisp_compat_css20.c    | 10 +---------
 .../media/atomisp/pci/ia_css_event_public.h     | 17 +----------------
 drivers/staging/media/atomisp/pci/sh_css.c      |  6 ------
 5 files changed, 3 insertions(+), 34 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 72c61c732d53..4783590969b6 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -1881,7 +1881,7 @@ irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr)
 	/*
 	 * The standard CSS2.0 API tells the following calling sequence of
 	 * dequeue ready buffers:
-	 * while (ia_css_dequeue_event(...)) {
+	 * while (ia_css_dequeue_psys_event(...)) {
 	 *	switch (event.type) {
 	 *	...
 	 *	ia_css_pipe_dequeue_buffer()
diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat.h b/drivers/staging/media/atomisp/pci/atomisp_compat.h
index c16eaf3d126f..64c1bf0943e6 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_compat.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_compat.h
@@ -133,8 +133,6 @@ void atomisp_css_get_dis_statistics(struct atomisp_sub_device *asd,
 				    struct atomisp_css_buffer *isp_css_buffer,
 				    struct ia_css_isp_dvs_statistics_map *dvs_map);
 
-int atomisp_css_dequeue_event(struct atomisp_css_event *current_event);
-
 void atomisp_css_temp_pipe_to_pipe_id(struct atomisp_sub_device *asd,
 				      struct atomisp_css_event *current_event);
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
index da177a8e78e3..7edee293b132 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
@@ -1633,14 +1633,6 @@ void atomisp_css_get_dis_statistics(struct atomisp_sub_device *asd,
 	}
 }
 
-int atomisp_css_dequeue_event(struct atomisp_css_event *current_event)
-{
-	if (ia_css_dequeue_event(&current_event->event))
-		return -EINVAL;
-
-	return 0;
-}
-
 void atomisp_css_temp_pipe_to_pipe_id(struct atomisp_sub_device *asd,
 				      struct atomisp_css_event *current_event)
 {
@@ -4120,7 +4112,7 @@ int atomisp_css_isr_thread(struct atomisp_device *isp,
 	bool reset_wdt_timer[MAX_STREAM_NUM] = {false};
 	int i;
 
-	while (!atomisp_css_dequeue_event(&current_event)) {
+	while (!ia_css_dequeue_psys_event(&current_event.event)) {
 		if (current_event.event.type ==
 		    IA_CSS_EVENT_TYPE_FW_ASSERT) {
 			/*
diff --git a/drivers/staging/media/atomisp/pci/ia_css_event_public.h b/drivers/staging/media/atomisp/pci/ia_css_event_public.h
index 08ea801dd5ac..76219d741d2e 100644
--- a/drivers/staging/media/atomisp/pci/ia_css_event_public.h
+++ b/drivers/staging/media/atomisp/pci/ia_css_event_public.h
@@ -157,21 +157,6 @@ struct ia_css_event {
 int
 ia_css_dequeue_psys_event(struct ia_css_event *event);
 
-/* @brief Dequeue an event from the CSS system.
- *
- * @param[out]	event   Pointer to the event struct which will be filled by
- *                      this function if an event is available.
- * @return		-ENODATA if no events are
- *			available or
- *			0 otherwise.
- *
- * deprecated{Use ia_css_dequeue_psys_event instead}.
- * Unless the isys event queue is explicitly enabled, this function will
- * dequeue both isys (EOF) and psys events (all others).
- */
-int
-ia_css_dequeue_event(struct ia_css_event *event);
-
 /* @brief Dequeue an ISYS event from the CSS system.
  *
  * @param[out]	event   Pointer to the event struct which will be filled by
@@ -182,7 +167,7 @@ ia_css_dequeue_event(struct ia_css_event *event);
  *
  * This function dequeues an event from the ISYS event queue. The queue is
  * between host and the CSS system.
- * Unlike the ia_css_dequeue_event() function, this function can be called
+ * Unlike the ia_css_dequeue_psys_event() function, this function can be called
  * directly from an interrupt service routine (ISR) and it is safe to call
  * this function in parallel with other CSS API functions (but only one
  * call to this function should be in flight at any point in time).
diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index 79003077f390..c714c15c49d2 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -4423,12 +4423,6 @@ static enum ia_css_event_type convert_event_sp_to_host_domain[] = {
 	0,					/* error if sp passes  SH_CSS_SP_EVENT_NR_OF_TYPES as a valid event. */
 };
 
-int
-ia_css_dequeue_event(struct ia_css_event *event)
-{
-	return ia_css_dequeue_psys_event(event);
-}
-
 int
 ia_css_dequeue_psys_event(struct ia_css_event *event)
 {
-- 
2.33.1