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mmc: core: Let mmc_power_up|cycle take ocr as parameter

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As a step to fixup the setup of the negotiated ocr mask, we need the
mmc_power_up|cycle functions to take the ocr as a parameter.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Ulf Hansson 2013-09-12 14:36:53 +02:00 committed by Chris Ball
parent 878e200bbb
commit 4a065193c4
5 changed files with 16 additions and 24 deletions
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24
drivers/mmc/core/core.c
View File

@ -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);

4
drivers/mmc/core/core.h
View File

@ -46,9 +46,9 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
void mmc_set_timing(struct mmc_host *host, unsigned int timing);
void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
void mmc_power_up(struct mmc_host *host);
void mmc_power_up(struct mmc_host *host, u32 ocr);
void mmc_power_off(struct mmc_host *host);
void mmc_power_cycle(struct mmc_host *host);
void mmc_power_cycle(struct mmc_host *host, u32 ocr);
static inline void mmc_delay(unsigned int ms)
{

4
drivers/mmc/core/mmc.c
View File

@ -1533,7 +1533,7 @@ static int mmc_resume(struct mmc_host *host)
BUG_ON(!host->card);
mmc_claim_host(host);
mmc_power_up(host);
mmc_power_up(host, host->ocr);
mmc_select_voltage(host, host->ocr);
err = mmc_init_card(host, host->ocr, host->card);
mmc_release_host(host);
@ -1579,7 +1579,7 @@ static int mmc_runtime_resume(struct mmc_host *host)
mmc_claim_host(host);
mmc_power_up(host);
mmc_power_up(host, host->ocr);
err = mmc_resume(host);
if (err)
pr_err("%s: error %d doing aggessive resume\n",

4
drivers/mmc/core/sd.c
View File

@ -1099,7 +1099,7 @@ static int mmc_sd_resume(struct mmc_host *host)
BUG_ON(!host->card);
mmc_claim_host(host);
mmc_power_up(host);
mmc_power_up(host, host->ocr);
mmc_select_voltage(host, host->ocr);
err = mmc_sd_init_card(host, host->ocr, host->card);
mmc_release_host(host);
@ -1144,7 +1144,7 @@ static int mmc_sd_runtime_resume(struct mmc_host *host)
mmc_claim_host(host);
mmc_power_up(host);
mmc_power_up(host, host->ocr);
err = mmc_sd_resume(host);
if (err)
pr_err("%s: error %d doing aggessive resume\n",

4
drivers/mmc/core/sdio.c
View File

@ -981,7 +981,7 @@ static int mmc_sdio_resume(struct mmc_host *host)
/* Restore power if needed */
if (!mmc_card_keep_power(host)) {
mmc_power_up(host);
mmc_power_up(host, host->ocr);
mmc_select_voltage(host, host->ocr);
/*
* Tell runtime PM core we just powered up the card,
@ -1108,7 +1108,7 @@ static int mmc_sdio_runtime_suspend(struct mmc_host *host)
static int mmc_sdio_runtime_resume(struct mmc_host *host)
{
/* Restore power and re-initialize. */
mmc_power_up(host);
mmc_power_up(host, host->ocr);
return mmc_sdio_power_restore(host);
}