On 25 April 2016 at 19:20, Peng Fan <[email protected]> wrote: > Introduce driver to support "fairchild,74hc595" devices. > 1. Take linux drivers/drivers/gpio/gpio-74x164.c as reference. > 2. Following the naming used in Linux driver with gen_7x164 as the prefix. > 3. Enable CONFIG_DM_74X164 to use this driver. > 4. Follow Documentation/devicetree/bindings/gpio/gpio-74x164.txt to add device > nodes > 5. Tested on i.MX6 UltraLite with 74LV595 using gpio command and oscillograph. > > Signed-off-by: Peng Fan <[email protected]> > Cc: Simon Glass <[email protected]> > Cc: Masahiro Yamada <[email protected]> > Cc: Chin Liang See <[email protected]> > Cc: Bhuvanchandra DV <[email protected]> > Cc: Daniel Schwierzeck <[email protected]> > Cc: Fabio Estevam <[email protected]> > Cc: Stefano Babic <[email protected]> > --- > > V3: > Use dm_spi_claim_bus and dm_spi_xfer and dm_spi_release_bus > Drop spi_slave from struct gen_74x164_priv. > > V2: > Address Simon's comments: > Drop unused dev entry of gen_74x164_priv > Rename gen_74x164_info to gen_74x164_priv > Change u8 to uint > Change EINVAL to ENOSYS > Drop dm_gpio_set_value when probe, since GPIOD_IS_OUT_ACTIVE already > active the gpio. > Drop complicated spi_get_bus_and_cs, use dev_get_parent_priv. > To Kconfig help msg, I add 74lv165 and 75hc595, actually, the linux > one does not contain manufacture info.
Very nice Reviewed-by: Simon Glass <[email protected]> _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
