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path: root/drivers/mmc/core/core.c
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Diffstat (limited to 'drivers/mmc/core/core.c')
-rw-r--r--drivers/mmc/core/core.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 0292ad448b07..b66e7ab2ad43 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1479,7 +1479,7 @@ power_cycle:
if (err) {
pr_debug("%s: Signal voltage switch failed, "
"power cycling card\n", mmc_hostname(host));
- mmc_power_cycle(host);
+ mmc_power_cycle(host, host->ocr);
}
mmc_host_clk_release(host);
@@ -1520,22 +1520,14 @@ void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type)
* If a host does all the power sequencing itself, ignore the
* initial MMC_POWER_UP stage.
*/
-void mmc_power_up(struct mmc_host *host)
+void mmc_power_up(struct mmc_host *host, u32 ocr)
{
- int bit;
-
if (host->ios.power_mode == MMC_POWER_ON)
return;
mmc_host_clk_hold(host);
- /* If ocr is set, we use it */
- if (host->ocr)
- bit = ffs(host->ocr) - 1;
- else
- bit = fls(host->ocr_avail) - 1;
-
- host->ios.vdd = bit;
+ host->ios.vdd = fls(ocr) - 1;
if (mmc_host_is_spi(host))
host->ios.chip_select = MMC_CS_HIGH;
else
@@ -1605,12 +1597,12 @@ void mmc_power_off(struct mmc_host *host)
mmc_host_clk_release(host);
}
-void mmc_power_cycle(struct mmc_host *host)
+void mmc_power_cycle(struct mmc_host *host, u32 ocr)
{
mmc_power_off(host);
/* Wait at least 1 ms according to SD spec */
mmc_delay(1);
- mmc_power_up(host);
+ mmc_power_up(host, ocr);
}
/*
@@ -2309,7 +2301,7 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
pr_info("%s: %s: trying to init card at %u Hz\n",
mmc_hostname(host), __func__, host->f_init);
#endif
- mmc_power_up(host);
+ mmc_power_up(host, host->ocr_avail);
/*
* Some eMMCs (with VCCQ always on) may not be reset after power up, so
@@ -2479,7 +2471,7 @@ void mmc_start_host(struct mmc_host *host)
if (host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP)
mmc_power_off(host);
else
- mmc_power_up(host);
+ mmc_power_up(host, host->ocr_avail);
mmc_detect_change(host, 0);
}
@@ -2558,7 +2550,7 @@ int mmc_power_restore_host(struct mmc_host *host)
return -EINVAL;
}
- mmc_power_up(host);
+ mmc_power_up(host, host->ocr);
ret = host->bus_ops->power_restore(host);
mmc_bus_put(host);