summaryrefslogtreecommitdiffstats
path: root/drivers/video/fbdev/fsl-diu-fb.c
diff options
context:
space:
mode:
authorLinus Walleij <linus.walleij@linaro.org>2015-12-21 09:36:21 +0100
committerLinus Walleij <linus.walleij@linaro.org>2015-12-21 09:36:21 +0100
commit0529357f102b96f68bc199f858d1c3b07f4b674c (patch)
treeeaa047952a768099e00a5245afa0d84799df6990 /drivers/video/fbdev/fsl-diu-fb.c
parentgpio: pch: fix non-DT build (diff)
parentLinux 4.4-rc6 (diff)
downloadlinux-0529357f102b96f68bc199f858d1c3b07f4b674c.tar.xz
linux-0529357f102b96f68bc199f858d1c3b07f4b674c.zip
Merge tag 'v4.4-rc6' into devel
Linux 4.4-rc6
Diffstat (limited to 'drivers/video/fbdev/fsl-diu-fb.c')
-rw-r--r--drivers/video/fbdev/fsl-diu-fb.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c
index b335c1ae8625..fe00a07c122e 100644
--- a/drivers/video/fbdev/fsl-diu-fb.c
+++ b/drivers/video/fbdev/fsl-diu-fb.c
@@ -479,7 +479,10 @@ static enum fsl_diu_monitor_port fsl_diu_name_to_port(const char *s)
port = FSL_DIU_PORT_DLVDS;
}
- return diu_ops.valid_monitor_port(port);
+ if (diu_ops.valid_monitor_port)
+ port = diu_ops.valid_monitor_port(port);
+
+ return port;
}
/*
@@ -1915,6 +1918,14 @@ static int __init fsl_diu_init(void)
#else
monitor_port = fsl_diu_name_to_port(monitor_string);
#endif
+
+ /*
+ * Must to verify set_pixel_clock. If not implement on platform,
+ * then that means that there is no platform support for the DIU.
+ */
+ if (!diu_ops.set_pixel_clock)
+ return -ENODEV;
+
pr_info("Freescale Display Interface Unit (DIU) framebuffer driver\n");
#ifdef CONFIG_NOT_COHERENT_CACHE