Include <linux/io.h> to get readl() and writel() on S390. The error
message is shown below and a bug report is at [1].
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c:75:15: error: implicit
declaration of function 'readl' [-Werror=implicit-function-declaration]
75 | reg = readl(priv->mmio + HIBMC_DISPLAY_CONTROL_HISILE);
| ^~~~~
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c:80:9: error: implicit
declaration of function 'writel' [-Werror=implicit-function-declaration]
80 | writel(reg, priv->mmio + HIBMC_DISPLAY_CONTROL_HISILE);
| ^~~~~~
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Thomas Zimmermann <[email protected]>
Fixes: 45b64fd9f7ae ("drm/fb-helper: Remove unnecessary include statements")
Cc: Thomas Zimmermann <[email protected]>
Cc: Javier Martinez Canillas <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: [email protected]
Link:
https://lore.kernel.org/dri-devel/[email protected]/T/#u # [1]
---
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
index c228091fb0e6a..8c6d2ea2a4729 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
@@ -11,6 +11,8 @@
* Jianhua Li <[email protected]>
*/
+#include <linux/io.h>
+
#include <drm/drm_atomic_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_print.h>
--
2.38.0
