[PATCH v2 09/15] scsi: ufs: ufs-exynos: support custom version of ufs_hba_variant_ops

Chanho Park
2021-07-14T07:12:14Z

By default, ufs_hba_exynos_ops will be used but this patch supports to
use custom version of ufs_hba_variant_ops because some variants of
exynos-ufs will use only few callbacks.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
drivers/scsi/ufs/ufs-exynos.c | 8 +++++++-
drivers/scsi/ufs/ufs-exynos.h | 1 +
2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 60edd420095f..90c0d7c85a13 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1238,8 +1238,14 @@ static int exynos_ufs_probe(struct platform_device *pdev)
{
int err;
struct device *dev = &pdev->dev;
+ const struct ufs_hba_variant_ops *vops = &ufs_hba_exynos_ops;
+ const struct exynos_ufs_drv_data *drv_data =
+ device_get_match_data(dev);

- err = ufshcd_pltfrm_init(pdev, &ufs_hba_exynos_ops);
+ if (drv_data && drv_data->vops)
+ vops = drv_data->vops;
+
+ err = ufshcd_pltfrm_init(pdev, vops);
if (err)
dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);

diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index a46f30639f38..0938bd82763f 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -142,6 +142,7 @@ struct exynos_ufs_uic_attr {
};

struct exynos_ufs_drv_data {
+ const struct ufs_hba_variant_ops *vops;
struct exynos_ufs_uic_attr *uic_attr;
unsigned int quirks;
unsigned int opts;
--
2.32.0