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mmc: use regulator_can_change_voltage() instead of regulator_count_voltages

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mmc_regulator_set_ocr() depends on the ability of regulator to change the
voltage value. When regulator cannot change its voltage output, some code
is skipped to avoid reporting false errors on some boards, which use MMC
hosts with fixed regulators (e.g. Samsung Goni and UniversalC210 boards).

This patch replaces a hacky workaround based on regulator_count_voltages()
value with the correct call to recently introduced
regulator_can_change_voltage() function in regulators core.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Marek Szyprowski 2012-12-04 15:01:02 +01:00 committed by Chris Ball
parent bb691ae464
commit 5f56a8e6ef
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/core/core.c
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@ -1235,7 +1235,7 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc,
*/
voltage = regulator_get_voltage(supply);
if (regulator_count_voltages(supply) == 1)
if (!regulator_can_change_voltage(supply))
min_uV = max_uV = voltage;
if (voltage < 0)