mmc: sdhci: Enable high speed conditional on the corresponding bit

The capabilities register has a field to indicate whether the host
supports high speed mode or not. Add high speed host_caps based on
this bit instead of enabling it by default.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Michal Simek <michal.simek@xilnx.com>
Tested-by: Michal Simek <michal.simek@xilnx.com>
(zcu104 with sdhci-caps-mask = <0 0x200000>;)

diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index ff871f8..fe3d677 100644 (file)
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -843,7 +843,10 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
        if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
                cfg->voltages |= host->voltages;
 
-       cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
+       if (caps & SDHCI_CAN_DO_HISPD)
+               cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
+
+       cfg->host_caps |= MMC_MODE_4BIT;
 
        /* Since Host Controller Version3.0 */
        if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {