From: Kishon Vijay Abraham I Date: Thu, 21 Mar 2019 06:15:44 +0000 (+0530) Subject: mmc: sdhci-omap: Set caps2 to indicate no physical write protect pin X-Git-Tag: v5.1-rc2~22^2~2 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=031d2ccc16775c9531800979069e141fbedeb2f7;p=uclinux-h8%2Flinux.git mmc: sdhci-omap: Set caps2 to indicate no physical write protect pin After commit 6d5cd068ee59fba ("mmc: sdhci: use WP GPIO in sdhci_check_ro()") and commit 39ee32ce486756f ("mmc: sdhci-omap: drop ->get_ro() implementation"), sdhci-omap relied on SDHCI_PRESENT_STATE to check if the card is read-only, if wp-gpios is not populated in device tree. However SDHCI_PRESENT_STATE in sdhci-omap does not have correct read-only state. sdhci-omap can be used by platforms with both micro SD slot and standard SD slot with physical write protect pin (using GPIO). Set caps2 to MMC_CAP2_NO_WRITE_PROTECT based on if wp-gpios property is populated or not. This fix is required since existing device-tree node doesn't have "disable-wp" property and to preserve old-dt compatibility. Fixes: 6d5cd068ee59fba ("mmc: sdhci: use WP GPIO in sdhci_check_ro()") Fixes: 39ee32ce486756f ("mmc: sdhci-omap: drop ->get_ro() implementation") Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c index b1a66ca3821a..5bbed477c9b1 100644 --- a/drivers/mmc/host/sdhci-omap.c +++ b/drivers/mmc/host/sdhci-omap.c @@ -1056,6 +1056,9 @@ static int sdhci_omap_probe(struct platform_device *pdev) mmc->f_max = 48000000; } + if (!mmc_can_gpio_ro(mmc)) + mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT; + pltfm_host->clk = devm_clk_get(dev, "fck"); if (IS_ERR(pltfm_host->clk)) { ret = PTR_ERR(pltfm_host->clk);