v1 of the patch which introduced the ufshcd_vops_hibern8_notify() callback used a bool instead of an enum. In v2 this was updated to an enum based on the review feedback in [1].

ufs-exynos hibernate calls have always been broken upstream as it follows the v1 bool implementation.

Link: https://patchwork.kernel.org/project/linux-scsi/patch/001f01d23994%24719997c... [1] Fixes: 55f4b1f73631 ("scsi: ufs: ufs-exynos: Add UFS host support for Exynos SoCs") Signed-off-by: Peter Griffin peter.griffin@linaro.org Reviewed-by: Tudor Ambarus tudor.ambarus@linaro.org Cc: stable@vger.kernel.org --- v3: Added Link tag, and CC stable, and Reviewed-by (Tudor) --- drivers/ufs/host/ufs-exynos.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 5078210b2a5c..9b6c4cfd7665 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -1526,12 +1526,12 @@ static void exynos_ufs_dev_hw_reset(struct ufs_hba *hba) hci_writel(ufs, 1 << 0, HCI_GPIO_OUT); }

-static void exynos_ufs_pre_hibern8(struct ufs_hba *hba, u8 enter) +static void exynos_ufs_pre_hibern8(struct ufs_hba *hba, enum uic_cmd_dme cmd) { struct exynos_ufs *ufs = ufshcd_get_variant(hba); struct exynos_ufs_uic_attr *attr = ufs->drv_data->uic_attr;

- if (!enter) { + if (cmd == UIC_CMD_DME_HIBER_EXIT) { if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL) exynos_ufs_disable_auto_ctrl_hcc(ufs); exynos_ufs_ungate_clks(ufs); @@ -1559,11 +1559,11 @@ static void exynos_ufs_pre_hibern8(struct ufs_hba *hba, u8 enter) } }

-static void exynos_ufs_post_hibern8(struct ufs_hba *hba, u8 enter) +static void exynos_ufs_post_hibern8(struct ufs_hba *hba, enum uic_cmd_dme cmd) { struct exynos_ufs *ufs = ufshcd_get_variant(hba);

- if (!enter) { + if (cmd == UIC_CMD_DME_HIBER_EXIT) { u32 cur_mode = 0; u32 pwrmode;

@@ -1582,7 +1582,7 @@ static void exynos_ufs_post_hibern8(struct ufs_hba *hba, u8 enter)

if (!(ufs->opts & EXYNOS_UFS_OPT_SKIP_CONNECTION_ESTAB)) exynos_ufs_establish_connt(ufs); - } else { + } else if (cmd == UIC_CMD_DME_HIBER_ENTER) { ufs->entry_hibern8_t = ktime_get(); exynos_ufs_gate_clks(ufs); if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL) @@ -1669,15 +1669,15 @@ static int exynos_ufs_pwr_change_notify(struct ufs_hba *hba, }

static void exynos_ufs_hibern8_notify(struct ufs_hba *hba, - enum uic_cmd_dme enter, + enum uic_cmd_dme cmd, enum ufs_notify_change_status notify) { switch ((u8)notify) { case PRE_CHANGE: - exynos_ufs_pre_hibern8(hba, enter); + exynos_ufs_pre_hibern8(hba, cmd); break; case POST_CHANGE: - exynos_ufs_post_hibern8(hba, enter); + exynos_ufs_post_hibern8(hba, cmd); break; } }