This patch set is to add DT support for mxc_gpio driver.
patch 1/3, a new dev_get_addr interface is abstracted to improve driver who want to get device address. patch 2/3, add a new bank_index entry in platdata to avoid `plat - mxc_plat` pointer subtract usage. patch 3/3, add compatible ids and implement bind function. Also commented out U_BOOT_DEVICES and mxc_plat, since they are not needed if using DT. This patch set was tested on mx6sxsabresd board with DM and DT support.
Changes v4: 1. add Igor's Acked-by for patch 1/3 and 2/3 2. According Simon's suggestion, using fdt_addr_t as the return type of dev_get_addr. 3. Merge the 1/4 and 2/4 of v3 into 1/3 of v4. Acording Ignor's advice, there is no need to split prototype into a single patch. 4. To patch 3/3, address Simon's comments, add TODO to using auto-alloc feature, add comments, fix return value. 5. rebase on dm/master branch
Changes v3: 1. split bank_index patch 2. abstract dev_get_addr for driver
Changes v2: 1. remove uneccessary #ifdef 2. add more stuff in commit log 3. include a new function mxc_get_gpio_addr to get register base. This function is different for DT and not DT, by `#ifdef`. If using one implementation for DT and not DT, final image will be big. 4. include a new entry in platdata, named bank_index. it can simplify DT support. To no DT, bank_index is static initilized; to DT, bank_index is get from device's req_seq.
Peng Fan (3): dm: introduce dev_get_addr interface dm:gpio:mxc add a bank_index entry in platdata dm:gpio:mxc add DT support
drivers/core/device.c | 12 +++++++ drivers/gpio/mxc_gpio.c | 89 +++++++++++++++++++++++++++++++++++++++---------- include/dm/device.h | 10 ++++++ 3 files changed, 93 insertions(+), 18 deletions(-)