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drivers: serial: serial_omap: populate default clock frequency when not found in dt
In some platforms like am437x, serial node is not populated with clock-frequency node. So in that case have a default clock-clock frequency. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
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1 changed files with 3 additions and 1 deletions
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@ -12,6 +12,8 @@
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DECLARE_GLOBAL_DATA_PTR;
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#define DEFAULT_CLK_SPEED 48000000 /* 48Mhz */
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#if CONFIG_IS_ENABLED(OF_CONTROL)
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static const struct udevice_id omap_serial_ids[] = {
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{ .compatible = "ti,omap3-uart" },
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@ -28,7 +30,7 @@ static int omap_serial_ofdata_to_platdata(struct udevice *dev)
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if (ret)
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return ret;
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plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
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"clock-frequency", -1);
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"clock-frequency", DEFAULT_CLK_SPEED);
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plat->reg_shift = 2;
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return 0;
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