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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-04-19 14:24:56 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2021-04-23 10:29:49 +0300
commit6c857ccf4eedfdf8b8cabdd36e3675469f59d31b (patch)
tree2572813f69e78b0b7e0650dfbbe33815e642c895 /Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
parent6dab809bb5b183015e19d558bfa95107de660be0 (diff)
downloadlinux-6c857ccf4eedfdf8b8cabdd36e3675469f59d31b.tar.xz
mmc: mmc_spi: Set up polling even if voltage-ranges is not present
When voltage-ranges property is not present the driver assumes that it is 3.3v (3.2v..3.4v). But at the same time it disallows polling. Fix that by dropping the comparison to 0 when no property is provided. While at it, mark voltage-ranges property optional as it was initially. Fixes: 9c43df57910b ("mmc_spi: Add support for OpenFirmware bindings") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210419112459.25241-3-andriy.shevchenko@linux.intel.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt')
-rw-r--r--Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt6
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
index 75486cca8054..5e74db69f581 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
@@ -5,11 +5,11 @@ by mmc.txt and the properties used by the mmc_spi driver.
Required properties:
- spi-max-frequency : maximum frequency for this device (Hz).
-- voltage-ranges : two cells are required, first cell specifies minimum
- slot voltage (mV), second cell specifies maximum slot voltage (mV).
- Several ranges could be specified.
Optional properties:
+- voltage-ranges : two cells are required, first cell specifies minimum
+ slot voltage (mV), second cell specifies maximum slot voltage (mV).
+ Several ranges could be specified. If not provided, 3.2v..3.4v is assumed.
- gpios : may specify GPIOs in this order: Card-Detect GPIO,
Write-Protect GPIO. Note that this does not follow the
binding from mmc.txt, for historical reasons.