linux-kernel - [PATCH] media: atomisp: get rid of atomisp_get_frame

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Date:   Wed, 10 Nov 2021 11:43:46 +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>,
        Alan <alan@...ux.intel.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>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Kaixu Xia <kaixuxia@...cent.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Tsuchiya Yuto <kitakar@...il.com>,
        Yang Li <abaci-bugfix@...ux.alibaba.com>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev
Subject: [PATCH] media: atomisp: get rid of atomisp_get_frame_pgnr() abstraction

Simplify the code by getting rid of this function, as it ends
being just a single line of code.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 drivers/staging/media/atomisp/pci/atomisp_cmd.c  | 16 ----------------
 drivers/staging/media/atomisp/pci/atomisp_cmd.h  |  2 --
 drivers/staging/media/atomisp/pci/atomisp_fops.c |  2 +-
 3 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 4ef5d728cd2f..4bd5ab3a7863 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -1931,22 +1931,6 @@ irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr)
 	return IRQ_HANDLED;
 }
 
-/*
- * utils for buffer allocation/free
- */
-
-int atomisp_get_frame_pgnr(struct atomisp_device *isp,
-			   const struct ia_css_frame *frame, u32 *p_pgnr)
-{
-	if (!frame) {
-		dev_err(isp->dev, "%s: NULL frame pointer ERROR.\n", __func__);
-		return -EINVAL;
-	}
-
-	*p_pgnr = DIV_ROUND_UP(frame->data_bytes, PAGE_SIZE);
-	return 0;
-}
-
 /*
  * Get internal fmt according to V4L2 fmt
  */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.h b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
index fb848d716947..ebc729468f87 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
@@ -74,8 +74,6 @@ irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr);
 const struct atomisp_format_bridge *get_atomisp_format_bridge_from_mbus(
     u32 mbus_code);
 bool atomisp_is_mbuscode_raw(uint32_t code);
-int atomisp_get_frame_pgnr(struct atomisp_device *isp,
-			   const struct ia_css_frame *frame, u32 *p_pgnr);
 void atomisp_delayed_init_work(struct work_struct *work);
 
 /* Get internal fmt according to V4L2 fmt */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index c7ac313a2edf..0a8023aaf73d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -1094,7 +1094,7 @@ static int frame_mmap(struct atomisp_device *isp,
 
 	host_virt = vma->vm_start;
 	isp_virt = frame->data;
-	atomisp_get_frame_pgnr(isp, frame, &pgnr);
+	pgnr = DIV_ROUND_UP(frame->data_bytes, PAGE_SIZE);
 
 	if (do_isp_mm_remap(isp, vma, isp_virt, host_virt, pgnr))
 		return -EAGAIN;
-- 
2.33.1