mmc: sdhci: check voltage range only on regulators aware of voltage value
Some regulators don't report any voltage values, so checking supported voltage range results in disabling all SDHCI_CAN_VDD_* flags and registration failure. This patch finally provides a correct fix for the registration of SDHCI driver with all possible voltage regulators: dummy, fixed and regulated without using regulator_count_voltages() hacks. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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