From 9cde5b7a49a88939d648c361ec938fa8a633a045 Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Wed, 19 Sep 2012 22:27:04 +0800 Subject: [PATCH] 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 Signed-off-by: Chris Ball --- drivers/mmc/core/core.c | 10 ++++++---- 1 file 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) -- 2.30.2