Messages in this thread | | | Subject | Re: [PATCH v3 2/2] scsi: ufs-qcom: Keep core_clk_unipro ON while link is active | From | "Asutosh Das (asd)" <> | Date | Mon, 30 Nov 2020 18:36:42 -0800 |
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On 11/25/2020 6:01 PM, Can Guo wrote: > If we want to disable clocks to save power but still keep the link active, > core_clk_unipro, as same as ref_clk, should not be the one being disabled. > > Reviewed-by: Hongwu Su<hongwus@codeaurora.org> > Signed-off-by: Can Guo <cang@codeaurora.org> > ---
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
> drivers/scsi/ufs/ufs-qcom.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c > index f9d6ef3..8a7fc62 100644 > --- a/drivers/scsi/ufs/ufs-qcom.c > +++ b/drivers/scsi/ufs/ufs-qcom.c > @@ -977,6 +977,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) > struct platform_device *pdev = to_platform_device(dev); > struct ufs_qcom_host *host; > struct resource *res; > + struct ufs_clk_info *clki; > > if (strlen(android_boot_dev) && strcmp(android_boot_dev, dev_name(dev))) > return -ENODEV; > @@ -1075,6 +1076,11 @@ static int ufs_qcom_init(struct ufs_hba *hba) > } > } > > + list_for_each_entry(clki, &hba->clk_list_head, list) { > + if (!strcmp(clki->name, "core_clk_unipro")) > + clki->keep_link_active = true; > + } > + > err = ufs_qcom_init_lane_clks(host); > if (err) > goto out_variant_clear; >
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