2018-05-03 13:55:03

by Anders Roxell

[permalink] [raw]
Subject: [PATCH] drm/bridge: cdns-dsi: mark PM functions as __maybe_unused

The suspend/resume callbacks are now optional, leading to a warning when
they are unused:

drivers/gpu/drm/bridge/cdns-dsi.c:1353:12: warning: ‘cdns_dsi_suspend’
defined but not used [-Wunused-function]
static int cdns_dsi_suspend(struct device *dev)
^~~~~~~~~~~~~~~~
drivers/gpu/drm/bridge/cdns-dsi.c:1340:12: warning: ‘cdns_dsi_resume’
defined but not used [-Wunused-function]
static int cdns_dsi_resume(struct device *dev)
^~~~~~~~~~~~~~~

This marks the functions as __maybe_unused to avoid the warning.

Fixes: e19233955d9e ("drm/bridge: Add Cadence DSI driver")
Signed-off-by: Anders Roxell <[email protected]>
---
drivers/gpu/drm/bridge/cdns-dsi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c b/drivers/gpu/drm/bridge/cdns-dsi.c
index c255fc3e1be5..f2d43f24acfb 100644
--- a/drivers/gpu/drm/bridge/cdns-dsi.c
+++ b/drivers/gpu/drm/bridge/cdns-dsi.c
@@ -1337,7 +1337,7 @@ static const struct mipi_dsi_host_ops cdns_dsi_ops = {
.transfer = cdns_dsi_transfer,
};

-static int cdns_dsi_resume(struct device *dev)
+static int __maybe_unused cdns_dsi_resume(struct device *dev)
{
struct cdns_dsi *dsi = dev_get_drvdata(dev);

@@ -1350,7 +1350,7 @@ static int cdns_dsi_resume(struct device *dev)
return 0;
}

-static int cdns_dsi_suspend(struct device *dev)
+static int __maybe_unused cdns_dsi_suspend(struct device *dev)
{
struct cdns_dsi *dsi = dev_get_drvdata(dev);

--
2.17.0