[PATCH] drm/tegra: fix compile w/ CONFIG_DYNAMIC_DEBUG

[Stephen Warren]

From: Stephen Warren <swarren at nvidia.com>

With CONFIG_DYNAMIC_DEBUG=y, the followin compile error occurs:

drivers/gpu/drm/tegra/mipi-phy.c: In function ‘mipi_dphy_timing_validate’:
drivers/gpu/drm/tegra/mipi-phy.c:69:11: error: ‘EINVAL’ undeclared (first use in this function)
drivers/gpu/drm/tegra/mipi-phy.c:69:11: note: each undeclared identifier is reported only once for each function it appears in

Fix this by directly including the header that defines EINVAL.

Fixes: 39aa0a4f3be5 ("drm/tegra: Add DSI support")
Signed-off-by: Stephen Warren <swarren at nvidia.com>
---
 drivers/gpu/drm/tegra/mipi-phy.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/tegra/mipi-phy.c b/drivers/gpu/drm/tegra/mipi-phy.c
index 1d2ad267cfce..e2c4aedaee78 100644
--- a/drivers/gpu/drm/tegra/mipi-phy.c
+++ b/drivers/gpu/drm/tegra/mipi-phy.c
@@ -20,6 +20,7 @@
  * OF THIS SOFTWARE.
  */
 
+#include <linux/errno.h>
 #include <linux/kernel.h>
 
 #include "mipi-phy.h"
-- 
1.8.1.5