atmel-mci: debugfs: enable clock before dumping regs
Haavard Skinnemoen [Fri, 19 Sep 2008 19:09:27 +0000 (21:09 +0200)]
Make sure that the peripheral clock is enabled before reading the MMIO
registers for the debugfs "regs" dump.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

drivers/mmc/host/atmel-mci.c

index 0bd06f5..6de773d 100644 (file)
@@ -195,7 +195,9 @@ static int atmci_regs_show(struct seq_file *s, void *v)
 
        /* Grab a more or less consistent snapshot */
        spin_lock_irq(&host->mmc->lock);
+       clk_enable(host->mck);
        memcpy_fromio(buf, host->regs, MCI_REGS_SIZE);
+       clk_disable(host->mck);
        spin_unlock_irq(&host->mmc->lock);
 
        seq_printf(s, "MR:\t0x%08x%s%s CLKDIV=%u\n",