From 4dd520b36bce9b35f7a12f3ffd9a95269d425170 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Mon, 9 Sep 2019 06:00:00 -0700 Subject: dm: spi: Return 0 if driver does not implement ops->cs_info If an SPI controller driver does not implement ops->cs_info, that probably means any chip select number could be valid, hence let's return 0 for spi_cs_info(). Signed-off-by: Bin Meng Tested-by: Jagan Teki # SoPine Reviewed-by: Jagan Teki --- doc/driver-model/spi-howto.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'doc/driver-model') diff --git a/doc/driver-model/spi-howto.rst b/doc/driver-model/spi-howto.rst index 5540eb7d38..44eab3947e 100644 --- a/doc/driver-model/spi-howto.rst +++ b/doc/driver-model/spi-howto.rst @@ -634,8 +634,8 @@ method for cs_info() to deal with this. If you don't provide it, then the device tree will be used to determine what chip selects are valid. Return -ENODEV if the supplied chip select is invalid, or 0 if it is valid. -If you don't provide the cs_info() method, -ENODEV is assumed for all -chip selects that do not appear in the device tree. +If you don't provide the cs_info() method, 0 is assumed for all chip selects +that do not appear in the device tree. Test it -- cgit