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staging: media: atomisp: fix build errors when PM is disabled

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The function atomisp_restore_iumit_reg is unused when PM is disabled.
Adding __maybe_unused to the function definition avoids a warning.

The function atomisp_mrfld_power_down is defined only when PM is
enabled. So in atomisp_pci_probe, it should be called only when PM is
enabled.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jérémy Lefaure 2017-03-20 22:48:26 -04:00 committed by Greg Kroah-Hartman
parent 435ec8afa5
commit 447a7f934e
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
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@ -264,7 +264,7 @@ static int atomisp_save_iunit_reg(struct atomisp_device *isp)
return 0;
}
static int atomisp_restore_iunit_reg(struct atomisp_device *isp)
static int __maybe_unused atomisp_restore_iunit_reg(struct atomisp_device *isp)
{
struct pci_dev *dev = isp->pdev;
@ -1526,7 +1526,7 @@ static int atomisp_pci_probe(struct pci_dev *dev,
atomisp_ospm_dphy_down(isp);
/* Address later when we worry about the ...field chips */
if (atomisp_mrfld_power_down(isp))
if (IS_ENABLED(CONFIG_PM) && atomisp_mrfld_power_down(isp))
dev_err(&dev->dev, "Failed to switch off ISP\n");
pci_dev_put(isp->pci_root);
return err;