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authorChris Ball <cjb@laptop.org>2012-09-19 22:27:04 +0800
committerChris Ball <cjb@laptop.org>2012-10-07 17:41:43 -0400
commit9cde5b7a49a88939d648c361ec938fa8a633a045 (patch)
treec51a30ca2a4d86923b6ff0743e70fb6ef22a5f2e /drivers/mmc
parentf4f24ade1b24ec09981b5506e3a9a19a96055435 (diff)
mmc: core: Replace MMC_CAP2_BROKEN_VOLTAGE with test for fixed regulator
Before this patch, we were using MMC_CAP2_BROKEN_VOLTAGE as a way to avoid calling regulator_set_voltage() on a fixed regulator, but that's just duplicating information that already exists -- we should test whether the regulator is fixed directly, instead of via a capability. This patch implements that test. We can't reclaim the capability bit just yet, since there are still boards in arch/arm/ that reference it; those references can be removed now. Reported-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/core.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 044cd016320e..66121633c9cd 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1113,7 +1113,8 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc,
int tmp;
int voltage;
- /* REVISIT mmc_vddrange_to_ocrmask() may have set some
+ /*
+ * REVISIT mmc_vddrange_to_ocrmask() may have set some
* bits this regulator doesn't quite support ... don't
* be too picky, most cards and regulators are OK with
* a 0.1V range goof (it's a small error percentage).
@@ -1127,12 +1128,13 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc,
max_uV = min_uV + 100 * 1000;
}
- /* avoid needless changes to this voltage; the regulator
- * might not allow this operation
+ /*
+ * If we're using a fixed/static regulator, don't call
+ * regulator_set_voltage; it would fail.
*/
voltage = regulator_get_voltage(supply);
- if (mmc->caps2 & MMC_CAP2_BROKEN_VOLTAGE)
+ if (regulator_count_voltages(supply) == 1)
min_uV = max_uV = voltage;
if (voltage < 0)