Prepare for enabling DMA clustering and also for supporting
PAGE_SIZE != 4096 by declaring explicitly that the maximum segment
size is 4096 bytes for Exynos UFS host controllers.
Cc: Kiwoong Kim <kwmad.kim@xxxxxxxxxxx>
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
drivers/ufs/host/ufs-exynos.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index 3cdac89a28b8..821c000ca6b0 100644
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -1586,15 +1586,21 @@ static int exynos_ufs_probe(struct platform_device *pdev)
const struct ufs_hba_variant_ops *vops = &ufs_hba_exynos_ops;
const struct exynos_ufs_drv_data *drv_data =
device_get_match_data(dev);
+ struct ufs_hba *hba;
if (drv_data && drv_data->vops)
vops = drv_data->vops;
err = ufshcd_pltfrm_init(pdev, vops);
- if (err)
+ if (err) {
dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
+ return err;
+ }
+
+ hba = dev_get_drvdata(dev);
+ hba->host->max_segment_size = 4096;
- return err;
+ return 0;
}
static int exynos_ufs_remove(struct platform_device *pdev)
