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	if (!(sdhci_readw(host, O2_PLL_DLL_WDT_CONTROL1) & O2_PLL_LOCK_STATUS))	153	if (!(sdhci_readw(host, O2_PLL_DLL_WDT_CONTROL1) & O2_PLL_LOCK_STATUS))
154	sdhci_o2_enable_internal_clock(host);	154	sdhci_o2_enable_internal_clock(host);
		155	else
		156	sdhci_o2_wait_card_detect_stable(host);
155		157
156	return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);	158	return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
157	}	159	}