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Subject[RFC 2/2] mmc: sdhci-iproc: Set clock frequency as per DT
Date
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 --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");
--
2.30.1
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