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scsi: ufs: exynos: Ensure pre_link() executes before exynos_ufs_phy_init()

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Ensure clocks are enabled before configuring unipro. Additionally move
the pre_link() hook before the exynos_ufs_phy_init() calls. This means
the register write sequence more closely resembles the ordering of the
downstream driver.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20250319-exynos-ufs-stability-fixes-v2-1-96722cc2ba1b@linaro.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Peter Griffin 2025-03-19 15:30:18 +00:00 committed by Martin K. Petersen
parent 2014c95afe
commit 3d101165e7
1 changed files with 5 additions and 5 deletions
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10
drivers/ufs/host/ufs-exynos.c
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@ -1049,9 +1049,14 @@ static int exynos_ufs_pre_link(struct ufs_hba *hba)
exynos_ufs_config_intr(ufs, DFES_DEF_L4_ERRS, UNIPRO_L4);
exynos_ufs_set_unipro_pclk_div(ufs);
exynos_ufs_setup_clocks(hba, true, PRE_CHANGE);
/* unipro */
exynos_ufs_config_unipro(ufs);
if (ufs->drv_data->pre_link)
ufs->drv_data->pre_link(ufs);
/* m-phy */
exynos_ufs_phy_init(ufs);
if (!(ufs->opts & EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR)) {
@ -1059,11 +1064,6 @@ static int exynos_ufs_pre_link(struct ufs_hba *hba)
exynos_ufs_config_phy_cap_attr(ufs);
}
exynos_ufs_setup_clocks(hba, true, PRE_CHANGE);
if (ufs->drv_data->pre_link)
ufs->drv_data->pre_link(ufs);
return 0;
}