diff mbox series

[RFC,2/2] mmc: sdhci-iproc: Set clock frequency as per DT

Message ID 20210225095216.28591-3-nsaenzjulienne@suse.de
State New
Headers show
Series sdhci-iproc CMD timeouts | expand

Commit Message

Nicolas Saenz Julienne Feb. 25, 2021, 9:52 a.m. UTC 
devicetree might request a clock frequency different from whatever is
set-up by the bootloader. Make sure to setup the new rate.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
 drivers/mmc/host/sdhci-iproc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
index ddeaf8e1f72f..536c382e2486 100644
--- a/drivers/mmc/host/sdhci-iproc.c
+++ b/drivers/mmc/host/sdhci-iproc.c
@@ -358,6 +358,16 @@  static int sdhci_iproc_probe(struct platform_device *pdev)
 			ret = PTR_ERR(pltfm_host->clk);
 			goto err;
 		}
+
+		if (pltfm_host->clock) {
+			ret = clk_set_rate(pltfm_host->clk, pltfm_host->clock);
+			if (ret) {
+				dev_err(dev, "failed to set host clk at %u Hz\n",
+					pltfm_host->clock);
+				goto err;
+			}
+		}
+
 		ret = clk_prepare_enable(pltfm_host->clk);
 		if (ret) {
 			dev_err(dev, "failed to enable host clk\n");