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| author | Yaniv Gardi <ygardi@codeaurora.org> | 2015-10-28 11:15:51 (GMT) |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2015-11-09 23:03:55 (GMT) |
| commit | f06fcc7155dcbcd9b697d499595a2c1a3945bda2 (patch) | |
| tree | 16d733165dce040557335efc98e4c687c98fcddc /drivers/scsi/ufs/ufshcd.c | |
| parent | 6e3fd44d7b7638e0f7e3331eaf7f90f3a629f3e7 (diff) | |
| download | linux-f06fcc7155dcbcd9b697d499595a2c1a3945bda2.tar.xz | |
scsi: ufs-qcom: add QUniPro hardware support and power optimizations
New revisions of UFS host controller supports the new UniPro
hardware controller (referred as QUniPro). This patch adds
the support to enable this new UniPro controller hardware.
This change also adds power optimization for bus scaling feature,
as well as support for HS-G3 power mode.
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 52f9dad..131c720 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -5420,6 +5420,10 @@ static int ufshcd_scale_clks(struct ufs_hba *hba, bool scale_up) if (!head || list_empty(head)) goto out; + ret = ufshcd_vops_clk_scale_notify(hba, scale_up, PRE_CHANGE); + if (ret) + return ret; + list_for_each_entry(clki, head, list) { if (!IS_ERR_OR_NULL(clki->clk)) { if (scale_up && clki->max_freq) { @@ -5450,7 +5454,9 @@ static int ufshcd_scale_clks(struct ufs_hba *hba, bool scale_up) dev_dbg(hba->dev, "%s: clk: %s, rate: %lu\n", __func__, clki->name, clk_get_rate(clki->clk)); } - ufshcd_vops_clk_scale_notify(hba); + + ret = ufshcd_vops_clk_scale_notify(hba, scale_up, POST_CHANGE); + out: return ret; } |