Call irq_alloc_descs to get the irq_base for 3ds_debugboard, and add
a legacy irqdomain using the irq_base, so that the mapping between
3ds_debugboard hardware irq and Linux irq number can be dynamically
handled by irqdomain. As the result, the use of MXC_BOARD_IRQ_START
can be completely removed from 3ds_debugboard.c.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Change mxc_expio_init interface a little bit to have gpio than irq
number passed in. With the change, gpio_to_irq can be called inside
mxc_expio_init to get irq number, so that MXC_IRQ_TO_GPIO can be
removed.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
The debug board is little different for all mxc 3-stack(PDK)
platforms, it is possible here to add a common implementation to
support this board.
Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Shawn Guo