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SubjectRe: [RFC PATCH V3 10/21] mmc: sdhci: UHS-II support, dump UHS-II registers
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);
> >
> >
>

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