mmc: sdhci-of-dwcmshc: Fix init for AXI clock for Eswin EIC7700

Accessing the High-Speed registers requires the AXI clock to be enabled.

Signed-off-by: Huan He <hehuan1@eswincomputing.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: 32b2633 ("mmc: sdhci-of-dwcmshc: Add support for Eswin EIC7700")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: hehuaneswincomputing

drivers/mmc/host/sdhci-of-dwcmshc.c

@@ -1595,6 +1595,7 @@ static int eic7700_init(struct device *dev, struct sdhci_host *host, struct dwcm
 {
 	u32 emmc_caps = MMC_CAP2_NO_SD | MMC_CAP2_NO_SDIO;
 	unsigned int val, hsp_int_status, hsp_pwr_ctrl;
+	static const char * const clk_ids[] = {"axi"};
 	struct of_phandle_args args;
 	struct eic7700_priv *priv;
 	struct regmap *hsp_regmap;
@@ -1612,6 +1613,11 @@ static int eic7700_init(struct device *dev, struct sdhci_host *host, struct dwcm
 		return ret;
 	}
 
+	ret = dwcmshc_get_enable_other_clks(mmc_dev(host->mmc), dwc_priv,
+					    ARRAY_SIZE(clk_ids), clk_ids);
+	if (ret)
+		return ret;
+
 	ret = of_parse_phandle_with_fixed_args(dev->of_node, "eswin,hsp-sp-csr", 2, 0, &args);
 	if (ret) {
 		dev_err(dev, "Fail to parse 'eswin,hsp-sp-csr' phandle (%d)\n", ret);