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mmc: omap_hsmmc: add DT property for max bus frequency
Maximum bus frequency can be limited by external circuitry like level shifters etc. Allow passing this value from DT. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Venkatraman S <svenkatr@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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1 changed files with 4 additions and 1 deletions
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@ -1679,7 +1679,7 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
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{
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struct omap_mmc_platform_data *pdata;
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struct device_node *np = dev->of_node;
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u32 bus_width;
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u32 bus_width, max_freq;
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pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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@ -1706,6 +1706,9 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
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if (of_find_property(np, "ti,needs-special-reset", NULL))
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pdata->slots[0].features |= HSMMC_HAS_UPDATED_RESET;
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if (!of_property_read_u32(np, "max-frequency", &max_freq))
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pdata->max_freq = max_freq;
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return pdata;
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}
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#else
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