When building mtk_drm_drv.o the following build error is seen:
../drivers/gpu/drm/mediatek/mtk_drm_drv.c: In function ‘mtk_drm_kms_init’: ../drivers/gpu/drm/mediatek/mtk_drm_drv.c:291:8: error: implicit declaration of function ‘dma_set_max_seg_size’; did you mean ‘drm_rect_adjust_size’? [-Werror=implicit-function-declaration] ret = dma_set_max_seg_size(dma_dev, (unsigned int)DMA_BIT_MASK(32)); ^~~~~~~~~~~~~~~~~~~~ drm_rect_adjust_size ../drivers/gpu/drm/mediatek/mtk_drm_drv.c:291:52: error: implicit declaration of function ‘DMA_BIT_MASK’; did you mean ‘BIT_MASK’? [-Werror=implicit-function-declaration] ret = dma_set_max_seg_size(dma_dev, (unsigned int)DMA_BIT_MASK(32)); ^~~~~~~~~~~~ BIT_MASK
Rework to add a missing include file 'linux/dma-mapping.h', because that is the (only) header file containing that declaration.
Fixes: 070955558e82 ("drm/mediatek: set DMA max segment size") Signed-off-by: Anders Roxell anders.roxell@linaro.org --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 54536176bcbb..352b81a7a670 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -10,6 +10,7 @@ #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/pm_runtime.h> +#include <linux/dma-mapping.h>
#include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h>