[PATCH 3/4] mmc: sdhci-iproc: Set clock frequency as per DT
From: Nicolas Saenz Julienne <nsaenz@kernel.org>
Date: 2021-03-22 19:00:31
Also in:
linux-devicetree, linux-mmc, lkml
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, secure digital host controller interface (sdhci) driver, the rest · Maintainers:
Ulf Hansson, Adrian Hunter, Linus Torvalds
From: Nicolas Saenz Julienne <redacted> 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 <nsaenz@kernel.org> --- 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");
--
2.30.2
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