mmc: sdhci-pci-o2micro: Fix card detect by dealing with debouncing

The result from ->get_cd() may be incorrect as the card detect debouncing isn't managed correctly. Let's fix it.

Chevron Li committed 4 years ago

Commit e591fcf1 parent b13bacc1 file · +2 −0Browse files

Unified · Split

@@ -152,6 +152,8 @@ static int sdhci_o2_get_cd(struct mmc_host *mmc) · 151 unmodified lines
152	152
153	153	if (!(sdhci_readw(host, O2_PLL_DLL_WDT_CONTROL1) & O2_PLL_LOCK_STATUS))
154	154	sdhci_o2_enable_internal_clock(host);
	155	+ else
	156	+ sdhci_o2_wait_card_detect_stable(host);
155	157
156	158	return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
157	159	}