scsi: ufs: exynos: Call phy_notify_state() from hibern8 callbacks

Notify the UFS phy of the hibern8 link state so that it can program the
appropriate values.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260109-ufs-exynos-phy_notify_pmstate-v3-1-7eb692e271af@linaro.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index 70d195179ebaa01f38331faaee6f8349211c4c3b..76fee3a79c77b7117a2c02f380f8c78d702ad173 100644 (file)
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -1568,12 +1568,17 @@ 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;
+       static const union phy_notify phystate = {
+               .ufs_state = PHY_UFS_HIBERN8_EXIT
+       };
 
        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);
 
+               phy_notify_state(ufs->phy, phystate);
+
                if (ufs->opts & EXYNOS_UFS_OPT_USE_SW_HIBERN8_TIMER) {
                        static const unsigned int granularity_tbl[] = {
                                1, 4, 8, 16, 32, 100
@@ -1600,12 +1605,17 @@ static void exynos_ufs_pre_hibern8(struct ufs_hba *hba, enum uic_cmd_dme cmd)
 static void exynos_ufs_post_hibern8(struct ufs_hba *hba, enum uic_cmd_dme cmd)
 {
        struct exynos_ufs *ufs = ufshcd_get_variant(hba);
+       static const union phy_notify phystate = {
+               .ufs_state = PHY_UFS_HIBERN8_ENTER
+       };
 
        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)
                        exynos_ufs_enable_auto_ctrl_hcc(ufs);
+
+               phy_notify_state(ufs->phy, phystate);
        }
 }