linux-kernel - Re: [PATCH V1] mmc: sdhci: Update the software timeout value for sdhc

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Message-ID: <1a14317a-075d-a9ac-f620-19d64c52e292@somainline.org>
Date:   Wed, 16 Jun 2021 14:16:18 +0200
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Shaik Sajida Bhanu <sbhanu@...eaurora.org>,
        adrian.hunter@...el.com, ulf.hansson@...aro.org
Cc:     asutoshd@...eaurora.org, stummala@...eaurora.org,
        vbadigan@...eaurora.org, rampraka@...eaurora.org,
        sayalil@...eaurora.org, sartgarg@...eaurora.org,
        rnayak@...eaurora.org, cang@...eaurora.org,
        pragalla@...eaurora.org, nitirawa@...eaurora.org,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, agross@...nel.org,
        bjorn.andersson@...aro.org, robh+dt@...nel.org
Subject: Re: [PATCH V1] mmc: sdhci: Update the software timeout value for sdhc

Hi,


I am not sure which SoC is this change supposed to address, but it does not fix the longstanding issue of a similar kind on msm8996:


[   25.448575] mmc0: Timeout waiting for hardware interrupt.
[   25.464270] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
[   25.479768] mmc0: sdhci: Sys addr:  0x00000008 | Version:  0x00004902
[   25.495361] mmc0: sdhci: Blk size:  0x00004200 | Blk cnt:  0x00000006
[   25.510963] mmc0: sdhci: Argument:  0x01cd9f80 | Trn mode: 0x0000003b
[   25.526517] mmc0: sdhci: Present:   0x03f80206 | Host ctl: 0x0000001f
[   25.542178] mmc0: sdhci: Power:     0x0000000d | Blk gap:  0x00000000
[   25.557767] mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x00000007
[   25.573427] mmc0: sdhci: Timeout:   0x0000000a | Int stat: 0x00000000
[   25.588983] mmc0: sdhci: Int enab:  0x03ff900b | Sig enab: 0x03ff100b
[   25.604645] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
[   25.620273] mmc0: sdhci: Caps:      0x322dc8b2 | Caps_1:   0x00008007
[   25.635752] mmc0: sdhci: Cmd:       0x0000123a | Max curr: 0x00000000
[   25.651351] mmc0: sdhci: Resp[0]:   0x00000900 | Resp[1]:  0x5b590000
[   25.666879] mmc0: sdhci: Resp[2]:   0x73677f80 | Resp[3]:  0x00000900
[   25.682496] mmc0: sdhci: Host ctl2: 0x0000000c
[   25.697991] mmc0: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0x0000000101cd2200
[   25.713751] mmc0: sdhci_msm: ----------- VENDOR REGISTER DUMP -----------
[   25.729510] mmc0: sdhci_msm: DLL sts: 0x00000000 | DLL cfg:  0x6008642c | DLL cfg2: 0x0020a000
[   25.745564] mmc0: sdhci_msm: DLL cfg3: 0x00000008 | DLL usr ctl:  0x00000008 | DDR cfg: 0x80040873
[   25.761759] mmc0: sdhci_msm: Vndr func: 0x00018a9c | Vndr func2 : 0xfa8018a8 Vndr func3: 0x00024040
[   25.778080] mmc0: sdhci: ============================================
[   25.894360] mmc0: Reset 0x4 never completed.
[   25.910719] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
[   25.927143] mmc0: sdhci: Sys addr:  0x00000008 | Version:  0x00004902
[   25.943717] mmc0: sdhci: Blk size:  0x00004200 | Blk cnt:  0x00000006
[   25.960225] mmc0: sdhci: Argument:  0x01cd9f80 | Trn mode: 0x0000003b
[   25.976845] mmc0: sdhci: Present:   0x03f80206 | Host ctl: 0x0000001f
[   25.993490] mmc0: sdhci: Power:     0x0000000d | Blk gap:  0x00000000
[   26.010019] mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x00000007
[   26.026693] mmc0: sdhci: Timeout:   0x0000000a | Int stat: 0x00000000
[   26.043262] mmc0: sdhci: Int enab:  0x03ff900b | Sig enab: 0x03ff100b
[   26.059955] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
[   26.076546] mmc0: sdhci: Caps:      0x322dc8b2 | Caps_1:   0x00008007
[   26.093229] mmc0: sdhci: Cmd:       0x0000123a | Max curr: 0x00000000
[   26.109783] mmc0: sdhci: Resp[0]:   0x00000000 | Resp[1]:  0x00000000
[   26.126074] mmc0: sdhci: Resp[2]:   0x00000000 | Resp[3]:  0x00000000
[   26.142271] mmc0: sdhci: Host ctl2: 0x0000000c
[   26.158161] mmc0: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0x0000000101cd2200
[   26.174287] mmc0: sdhci_msm: ----------- VENDOR REGISTER DUMP -----------
[   26.190295] mmc0: sdhci_msm: DLL sts: 0x00000000 | DLL cfg:  0x6008642c | DLL cfg2: 0x0020a000
[   26.206518] mmc0: sdhci_msm: DLL cfg3: 0x00000008 | DLL usr ctl:  0x00000008 | DDR cfg: 0x80040873
[   26.222916] mmc0: sdhci_msm: Vndr func: 0x00018a9c | Vndr func2 : 0xfa8018a8 Vndr func3: 0x00024040
[   26.239484] mmc0: sdhci: ============================================


Konrad