Messages in this thread Patch in this message | | | From | Nitin Rawat <> | Subject | [PATCH V2 2/3] scsi: ufs: add a vops to configure VCC voltage level | Date | Mon, 22 Mar 2021 03:27:36 +0530 |
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Add a vops to configure VCC voltage VCC voltage level for platform supporting both ufs2.x and ufs 3.x devices.
Suggested-by: Stanley Chu <stanley.chu@mediatek.com> Suggested-by: Asutosh Das <asutoshd@codeaurora.org> Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Nitin Rawat <nitirawa@codeaurora.org> Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org> --- drivers/scsi/ufs/ufshcd.c | 4 ++++ drivers/scsi/ufs/ufshcd.h | 10 ++++++++++ 2 files changed, 14 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 633ca8e..5bfe987 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -7763,6 +7763,10 @@ static int ufshcd_add_lus(struct ufs_hba *hba) goto out;
ufshcd_clear_ua_wluns(hba); + if (ufshcd_vops_setup_vcc_regulators(hba)) + dev_err(hba->dev, + "%s: Failed to set the VCC regulator values, continue with 2.7v\n", + __func__);
/* Initialize devfreq after UFS device is detected */ if (ufshcd_is_clkscaling_supported(hba)) { diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 0db796a..8f0945d 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -324,6 +324,7 @@ struct ufs_pwr_mode_info { * @device_reset: called to issue a reset pulse on the UFS device * @program_key: program or evict an inline encryption key * @event_notify: called to notify important events + * @setup_vcc_regulators : update vcc regulator level */ struct ufs_hba_variant_ops { const char *name; @@ -360,6 +361,7 @@ struct ufs_hba_variant_ops { const union ufs_crypto_cfg_entry *cfg, int slot); void (*event_notify)(struct ufs_hba *hba, enum ufs_event_type evt, void *data); + int (*setup_vcc_regulators)(struct ufs_hba *hba); };
/* clock gating state */ @@ -1269,6 +1271,14 @@ static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba, hba->vops->config_scaling_param(hba, profile, data); }
+static inline int ufshcd_vops_setup_vcc_regulators(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->setup_vcc_regulators) + return hba->vops->setup_vcc_regulators(hba); + + return 0; +} + extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
/* -- 2.7.4
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