From a260e0b847f079b7eda85a76fc066a6537f34951 Mon Sep 17 00:00:00 2001 From: "Lowry Li (Arm Technology China)" Date: Thu, 11 Apr 2019 09:37:13 +0100 Subject: drm/komeda: fixing of DMA mapping sg segment warning Fixing the DMA mapping sg segment warning, which shows "DMA-API: mapping sg segment longer than device claims to support [len=921600] [max=65536]". Fixed by setting the max segment size at Komeda driver. This patch depends on: - https://patchwork.freedesktop.org/series/54448/ - https://patchwork.freedesktop.org/series/54449/ - https://patchwork.freedesktop.org/series/54450/ - https://patchwork.freedesktop.org/series/58976/ Changes since v1: - Adds member description - Adds patch denpendency in the comment Signed-off-by: Lowry Li (Arm Technology China) Reviewed-by: James Qian Wang (Arm Technology China) Reviewed-by: Ayan Kumar Halder Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/arm/display/komeda/komeda_dev.c') diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c index d7527e126658..b67030a9f056 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c @@ -8,6 +8,7 @@ #include #include #include +#include #ifdef CONFIG_DEBUG_FS #include #include @@ -249,6 +250,9 @@ struct komeda_dev *komeda_dev_create(struct device *dev) goto err_cleanup; } + dev->dma_parms = &mdev->dma_parms; + dma_set_max_seg_size(dev, DMA_BIT_MASK(32)); + err = sysfs_create_group(&dev->kobj, &komeda_sysfs_attr_group); if (err) { DRM_ERROR("create sysfs group failed.\n"); -- cgit v1.2.3-59-g8ed1b