tdc: add comment saying why we wait after the reset of the FPGA

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

tdc: add comment saying why we wait after the reset of the FPGA
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
77379458 · Samuel Iglesias Gonsálvez · 5b17fc17 · 77379458
Commit 77379458 authored Aug 30, 2012 by Samuel Iglesias Gonsálvez
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tdc-fmc.c tdc-fmc.c +1 -0

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--- a/tdc-fmc.c
+++ b/tdc-fmc.c
@@ -36,6 +36,7 @@ static void tdc_fmc_fw_reset(struct spec_tdc *tdc)
 	writel(0x00021040, tdc->gn412x_regs + TDC_PCI_SYS_CFG_SYSTEM);
 	mdelay(10);
 	writel(0x00025000, tdc->gn412x_regs + TDC_PCI_SYS_CFG_SYSTEM);
+	/* Allow the FW to initialize the PLLs */
 	mdelay(600);
 }