Messages in this thread | | | Date | Sun, 10 Jul 2022 20:41:08 -0700 | Subject | Re: [RESEND PATCH v3] scsi: ufs: exclude UECxx from SFR dump list | From | Bart Van Assche <> |
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On 7/10/22 19:02, Kiwoong Kim wrote: >> Is this behavior specific to the Exynos controller or is this behavior >> required by the UFSHCI specification? In the latter case, can you tell me >> where to find this requirement in the UFSHCI specification? I haven't >> found that requirement yet. Maybe this means that I overlooked something? > > This is needed because those SFRs are ROC (Read to Clear) type. > That means reading causes clearing contexts. > The SFRs are mainly read in interrupt context but the reading is also done in dump. The above repeats what I can find in the patch description but doesn't answer my question :-(
Bart.
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