On 10/07/20 2:10 pm, Ben Chuang wrote:
> From: AKASHI Takahiro <[email protected]>
> 
> Dump UHS-II specific registers, if available, in sdhci_dumpregs()
> for informative/debugging use.
> 
> Signed-off-by: Ben Chuang <[email protected]>
> Signed-off-by: AKASHI Takahiro <[email protected]>
> ---
>  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);

>       if (host->ops->dump_vendor_regs)
>               host->ops->dump_vendor_regs(host);
>  
> 

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