Re: [PATCH] mmc: sdhci_am654: Drop lookup for deprecated ti,otap-del-sel

Vignesh Raghavendra
2023-11-22T05:53:50Z

On 20/11/23 17:38, Adrian Hunter wrote:
> On 10/11/23 09:25, Vignesh Raghavendra wrote:
>> ti,otap-del-sel has been deprecated since v5.7 and there are no users of
>> this property and no documentation in the DT bindings either.
>> Drop the fallback code looking for this property, this makes
>> sdhci_am654_get_otap_delay() much easier to read as all the TAP values
>> can be handled via a single iterator loop.
>>
>> Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
>
> One minor comment below, otherwise:
>
> Acked-by: Adrian Hunter <adrian.hunter@intel.com>
>
>> ---
>>
>> Based on discussions at [1]
>> https://lore.kernel.org/linux-mmc/CAPDyKFrCSTW3G6H7qS89d+UQ6RJcAYcKSPULVT8J7XKsUDpHdw@mail.gmail.com/
>>
>> CC'ing DT maintainers to see if there any objection to remove
>> undocumented and deprecated property.
>>
>> drivers/mmc/host/sdhci_am654.c | 25 ++++---------------------
>> 1 file changed, 4 insertions(+), 21 deletions(-)
>>
>> diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
>> index 967bd2dfcda1..402fba0fa418 100644
>> --- a/drivers/mmc/host/sdhci_am654.c
>> +++ b/drivers/mmc/host/sdhci_am654.c
>> @@ -577,32 +577,15 @@ static int sdhci_am654_get_otap_delay(struct sdhci_host *host,
>> int i;
>> int ret;
>>
>> - ret = device_property_read_u32(dev, td[MMC_TIMING_LEGACY].otap_binding,
>> - &sdhci_am654->otap_del_sel[MMC_TIMING_LEGACY]);
>> - if (ret) {
>> - /*
>> - * ti,otap-del-sel-legacy is mandatory, look for old binding
>> - * if not found.
>> - */
>> - ret = device_property_read_u32(dev, "ti,otap-del-sel",
>> - &sdhci_am654->otap_del_sel[0]);
>> - if (ret) {
>> - dev_err(dev, "Couldn't find otap-del-sel\n");
>> -
>> - return ret;
>> - }
>> -
>> - dev_info(dev, "Using legacy binding ti,otap-del-sel\n");
>> - sdhci_am654->legacy_otapdly = true;
>
> With this removal, legacy_otapdly is not used anymore and should be
> removed also.
>

Indeed, will post v2 with cleanup. Thanks for the review!

>> -
>> - return 0;
>> - }
>> -
>> for (i = MMC_TIMING_LEGACY; i <= MMC_TIMING_MMC_HS400; i++) {
>>
>> ret = device_property_read_u32(dev, td[i].otap_binding,
>> &sdhci_am654->otap_del_sel[i]);
>> if (ret) {
>> + if (i == MMC_TIMING_LEGACY) {
>> + dev_err(dev, "Couldn't find mandatory ti,otap-del-sel-legacy\n");
>> + return ret;
>> + }
>> dev_dbg(dev, "Couldn't find %s\n",
>> td[i].otap_binding);
>> /*
>

--
Regards
Vignesh