mmc: sdhci-brcmstb: Replace SDHCI_QUIRK_MISSING_CAPS

SDHCI_QUIRK_MISSING_CAPS is not needed because sdhci_read_caps() can be
called instead.

In preparation to get rid of SDHCI_QUIRK_MISSING_CAPS, replace
SDHCI_QUIRK_MISSING_CAPS with sdhci_read_caps().

__sdhci_read_caps() is also called from sdhci_setup_host() via
sdhci_read_caps(), however only the first call to __sdhci_read_caps() does
anything because after that host->read_caps has been set to true.

Note, __sdhci_read_caps() does more than just set host->caps, such as do a
reset, so calling __sdhci_read_caps() earlier could have unforeseen
side-effects. However the code flow has been reviewed with that in mind.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230113110011.129835-3-adrian.hunter@intel.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-brcmstb.c

@@ -324,13 +324,11 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)
 	 * will allow these modes to be specified by device tree
 	 * properties through mmc_of_parse().
 	 */
-	host->caps = sdhci_readl(host, SDHCI_CAPABILITIES);
+	sdhci_read_caps(host);
 	if (match_priv->flags & BRCMSTB_MATCH_FLAGS_NO_64BIT)
 		host->caps &= ~SDHCI_CAN_64BIT;
-	host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
 	host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_SDR104 |
 			 SDHCI_SUPPORT_DDR50);
-	host->quirks |= SDHCI_QUIRK_MISSING_CAPS;
 
 	if (match_priv->flags & BRCMSTB_MATCH_FLAGS_BROKEN_TIMEOUT)
 		host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;