From: AKASHI Takahiro <takahiro.akashi@linaro.org>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ben Chuang <benchuanggli@gmail.com>,
ulf.hansson@linaro.org, linux-mmc@vger.kernel.org,
linux-kernel@vger.kernel.org, ben.chuang@genesyslogic.com.tw,
greg.tu@genesyslogic.com.tw
Subject: Re: [RFC PATCH V3 10/21] mmc: sdhci: UHS-II support, dump UHS-II registers
Date: Tue, 15 Sep 2020 15:49:05 +0900 [thread overview]
Message-ID: <20200915064905.GD2860208@laputa> (raw)
In-Reply-To: <bd374ef8-8b8b-031b-0e59-d6f881cb9330@intel.com>
On Fri, Aug 21, 2020 at 05:04:54PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:10 pm, Ben Chuang wrote:
> > From: AKASHI Takahiro <takahiro.akashi@linaro.org>
> >
> > Dump UHS-II specific registers, if available, in sdhci_dumpregs()
> > for informative/debugging use.
> >
> > Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> > ---
> > drivers/mmc/host/sdhci.c | 24 ++++++++++++++++++++++++
> > 1 file changed, 24 insertions(+)
> >
> > diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> > index 37b1158c1c0c..c2f6923d296c 100644
> > --- a/drivers/mmc/host/sdhci.c
> > +++ b/drivers/mmc/host/sdhci.c
> > @@ -111,6 +111,30 @@ void sdhci_dumpregs(struct sdhci_host *host)
> > }
> > }
> >
> > + if (IS_ENABLED(CONFIG_MMC_SDHCI_UHS2) &&
> > + host->mmc && host->mmc->flags & MMC_UHS2_SUPPORT) {
> > + SDHCI_DUMP("==================== UHS2 ==================\n");
> > + SDHCI_DUMP("Blk Size: 0x%08x | Blk Cnt: 0x%08x\n",
> > + sdhci_readw(host, SDHCI_UHS2_BLOCK_SIZE),
> > + sdhci_readl(host, SDHCI_UHS2_BLOCK_COUNT));
> > + SDHCI_DUMP("Cmd: 0x%08x | Trn mode: 0x%08x\n",
> > + sdhci_readw(host, SDHCI_UHS2_COMMAND),
> > + sdhci_readw(host, SDHCI_UHS2_TRANS_MODE));
> > + SDHCI_DUMP("Int Stat: 0x%08x | Dev Sel : 0x%08x\n",
> > + sdhci_readw(host, SDHCI_UHS2_DEV_INT_STATUS),
> > + sdhci_readb(host, SDHCI_UHS2_DEV_SELECT));
> > + SDHCI_DUMP("Dev Int Code: 0x%08x\n",
> > + sdhci_readb(host, SDHCI_UHS2_DEV_INT_CODE));
> > + SDHCI_DUMP("Reset: 0x%08x | Timer: 0x%08x\n",
> > + sdhci_readw(host, SDHCI_UHS2_SW_RESET),
> > + sdhci_readw(host, SDHCI_UHS2_TIMER_CTRL));
> > + SDHCI_DUMP("ErrInt: 0x%08x | ErrIntEn: 0x%08x\n",
> > + sdhci_readl(host, SDHCI_UHS2_ERR_INT_STATUS),
> > + sdhci_readl(host, SDHCI_UHS2_ERR_INT_STATUS_EN));
> > + SDHCI_DUMP("ErrSigEn: 0x%08x\n",
> > + sdhci_readl(host, SDHCI_UHS2_ERR_INT_SIG_EN));
> > + }
> > +
>
> Let's make this a host op instead ie.
>
> if (host->ops->dump_uhs2_regs)
> host->ops->dump_uhs2_regs(host);
Sure.
-Takahiro Akashi
> > if (host->ops->dump_vendor_regs)
> > host->ops->dump_vendor_regs(host);
> >
> >
>
prev parent reply other threads:[~2020-09-15 6:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 11:10 [RFC PATCH V3 10/21] mmc: sdhci: UHS-II support, dump UHS-II registers Ben Chuang
2020-08-21 14:04 ` Adrian Hunter
2020-09-15 6:49 ` AKASHI Takahiro [this message]
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