Hi Avri,

On Fri, 2020-01-31 at 18:48 +0000, Avri Altman wrote:

quoted

+static u32 ufs_mtk_link_get_state(struct ufs_hba *hba)
+{
+       u32 val;
+
+       ufshcd_writel(hba, 0x20, REG_UFS_DEBUG_SEL);
+       val = ufshcd_readl(hba, REG_UFS_PROBE);
+       val = val >> 28;
+
+       return val;
+}

A little bit strange that you are relying on debug registers to setup your ref-clock.
Is this this debug info is always available?

Yes, this register is only for this purpose now (query link state) and
always existed in MediaTek UFS host.

Thanks,
Stanley
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