Force all host to have erase capacity to enable trim or discard feature in supported eMMC device. Signed-off-by: Puthikorn Voravootivat <puthik@xxxxxxxxxxxx> --- V2 change: Instead of add MMC_CAP_ERASE just only for dw_mmc, this patch adds this capability to all host. drivers/mmc/core/host.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 49bc403..a21f590 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -521,6 +521,8 @@ int mmc_add_host(struct mmc_host *host) WARN_ON((host->caps & MMC_CAP_SDIO_IRQ) && !host->ops->enable_sdio_irq); + host->caps |= MMC_CAP_ERASE; + err = device_add(&host->class_dev); if (err) return err; -- 1.9.0.rc1.175.g0b1dcb5 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html