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From: Vaibhav Gupta <vaibhavgupta40@gmail.com>
To: Bjorn Helgaas <helgaas@kernel.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	bjorn@helgaas.com, Vaibhav Gupta <vaibhav.varodek@gmail.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org,
	linux-kernel-mentees@lists.linuxfoundation.org,
	linux-kernel@vger.kernel.org,
	Vaibhav Gupta <vaibhavgupta40@gmail.com>
Subject: [Linux-kernel-mentees] [PATCH v1 2/6] [media] cx23885: use generic power management
Date: Mon, 29 Jun 2020 13:06:00 +0530	[thread overview]
Message-ID: <20200629073604.205478-3-vaibhavgupta40@gmail.com> (raw)
In-Reply-To: <20200629073604.205478-1-vaibhavgupta40@gmail.com>

The .suspend() and .resume() callbacks are not defined for this driver.
Still, their power managemgement stucture can be easily upgraded to
gemeric, without affecting its normal behaviour.

Hence, define them NULL and use struct dev_pm_ops type to bind them.

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
---
 drivers/media/pci/cx23885/cx23885-core.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c
index 7e0b0b7cc2a3..da9ee7270dfd 100644
--- a/drivers/media/pci/cx23885/cx23885-core.c
+++ b/drivers/media/pci/cx23885/cx23885-core.c
@@ -2230,14 +2230,18 @@ static const struct pci_device_id cx23885_pci_tbl[] = {
 };
 MODULE_DEVICE_TABLE(pci, cx23885_pci_tbl);
 
+#define cx23885_suspend NULL
+#define cx23885_resume NULL
+
+static SIMPLE_DEV_PM_OPS(cx23885_pm_ops, cx23885_suspend, cx23885_resume);
+
 static struct pci_driver cx23885_pci_driver = {
-	.name     = "cx23885",
-	.id_table = cx23885_pci_tbl,
-	.probe    = cx23885_initdev,
-	.remove   = cx23885_finidev,
+	.name      = "cx23885",
+	.id_table  = cx23885_pci_tbl,
+	.probe     = cx23885_initdev,
+	.remove    = cx23885_finidev,
 	/* TODO */
-	.suspend  = NULL,
-	.resume   = NULL,
+	.driver.pm = &cx23885_pm_ops,
 };
 
 static int __init cx23885_init(void)
-- 
2.27.0

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  parent reply	other threads:[~2020-06-29  7:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-29  7:35 [Linux-kernel-mentees] [PATCH v1 0/6] [media] pci: " Vaibhav Gupta
2020-06-29  7:35 ` [Linux-kernel-mentees] [PATCH v1 1/6] [media] sta2x11: " Vaibhav Gupta
2020-06-29  7:36 ` Vaibhav Gupta [this message]
2020-07-13 10:01   ` [Linux-kernel-mentees] [PATCH v1 2/6] [media] cx23885: " Hans Verkuil
2020-07-14  0:38     ` Bjorn Helgaas
2020-07-14 10:52       ` Vaibhav Gupta
2020-06-29  7:36 ` [Linux-kernel-mentees] [PATCH v1 3/6] [media] cx25821: " Vaibhav Gupta
2020-07-13 10:03   ` Hans Verkuil
2020-06-29  7:36 ` [Linux-kernel-mentees] [PATCH v1 4/6] [media] cx88: " Vaibhav Gupta
2020-06-29  7:36 ` [Linux-kernel-mentees] [PATCH v1 5/6] [media] meye: " Vaibhav Gupta
2020-06-29  7:36 ` [Linux-kernel-mentees] [PATCH v1 6/6] [media] tw68: " Vaibhav Gupta

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