[PATCH 16/18] mmc: rockchip: Allow clocks to be missing

[Simon Glass]

Allow MMC init when clock support is not enabled in a particular phase.

Refactor the setting of priv->emmc_clk so it is a bit clearer.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/mmc/rockchip_dw_mmc.c | 6 ++----
 drivers/mmc/rockchip_sdhci.c  | 9 ++++-----
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/mmc/rockchip_dw_mmc.c b/drivers/mmc/rockchip_dw_mmc.c
index 7e341665aa3..5ba99d68b7d 100644
--- a/drivers/mmc/rockchip_dw_mmc.c
+++ b/drivers/mmc/rockchip_dw_mmc.c
@@ -131,13 +131,11 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
 	priv->minmax[1] = dtplat->max_frequency;
 
 	ret = clk_get_by_phandle(dev, &dtplat->clocks[1], &priv->clk);
-	if (ret < 0)
-		return ret;
 #else
 	ret = clk_get_by_index(dev, 1, &priv->clk);
-	if (ret < 0)
-		return ret;
 #endif
+	if (ret < 0 && ret != -ENOSYS)
+		return log_msg_ret("clk", ret);
 	host->fifo_depth = priv->fifo_depth;
 	host->fifo_mode = priv->fifo_mode;
 
diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
index 35667b86b50..15b4a39770a 100644
--- a/drivers/mmc/rockchip_sdhci.c
+++ b/drivers/mmc/rockchip_sdhci.c
@@ -571,20 +571,19 @@ static int rockchip_sdhci_probe(struct udevice *dev)
 	struct rockchip_sdhc *priv = dev_get_priv(dev);
 	struct mmc_config *cfg = &plat->cfg;
 	struct sdhci_host *host = &priv->host;
-	struct clk clk;
+	struct clk *clk = &priv->emmc_clk;
 	int ret;
 
 	host->max_clk = cfg->f_max;
-	ret = clk_get_by_index(dev, 0, &clk);
+	ret = clk_get_by_index(dev, 0, clk);
 	if (!ret) {
-		ret = clk_set_rate(&clk, host->max_clk);
+		ret = clk_set_rate(clk, host->max_clk);
 		if (IS_ERR_VALUE(ret))
 			printf("%s clk set rate fail!\n", __func__);
-	} else {
+	} else if (ret != -ENOSYS) {
 		printf("%s fail to get clk\n", __func__);
 	}
 
-	priv->emmc_clk = clk;
 	priv->dev = dev;
 
 	if (data->get_phy) {
-- 
2.34.1