Fix tmio MMC_POWER_UP invocation which had been broken in linux-2.6.39-rc1. In tmio_mmc_set_ios() an affirmative test for ios->clock == 0 executes the MMC_POWER_OFF block regardless of ios->power_mode. Because mmc_power_up() invokes MMC_POWER_UP before setting ios->clock, tmio_mmc_set_ios() turns the MMC power off instead of on.
Signed-off-by: Paul Parsons <lost.distance@xxxxxxxxx>
---
--- clean-2.6.39-rc4/drivers/mmc/host/tmio_mmc_pio.c 2011-04-20 19:13:27.144322768 +0100
+++ linux-2.6.39-rc4/drivers/mmc/host/tmio_mmc_pio.c 2011-04-20 19:11:49.135616453 +0100
@@ -728,7 +728,7 @@ static void tmio_mmc_set_ios(struct mmc_
tmio_mmc_set_clock(host, ios->clock);
/* Power sequence - OFF -> UP -> ON */
- if (ios->power_mode == MMC_POWER_OFF || !ios->clock) {
+ if (ios->power_mode == MMC_POWER_OFF) {
/* power down SD bus */
if (ios->power_mode == MMC_POWER_OFF && host->set_pwr)
host->set_pwr(host->pdev, 0);
--
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