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path: root/drivers/gpio/lpc32xx_gpio.c
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2015-09-11gpio: lpc32xx: fix issues with port3 gpioSylvain Lemieux
The current simplify lpc32xx gpio driver implementation assume a maximum of 32 GPIO per port; there are a total of 22 GPI, 24 GPO and 6 GPIO to managed on port 3. Update the driver to fix the following: 1) When requesting GPI_xx and GPO_xx on port 3 (xx is the same number) the second call to "gpio_request" will return -EBUSY. 2) The status of GPO_xx pin report the status of the corresponding GPI_xx pin when using the "gpio status" command. 3) The gpio driver may setup the direction register for the wrong gpio when calling "gpio_direction_input" (GPI_xx) or "gpio_direction_output" (GPO_xx) on port 3; the call to the direction is require to use the "gpio status" command. The following change were done in the driver: 1) port3 GPI are cache in a separate 32 bits in the array. 2) port3 direction register written only for GPIO pins. 3) port3 GPO & GPIO (as output) are read using "p3_outp_state". 4) LPC32XX_GPI_P3_GRP updated to match the change. Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2015-07-07gpio: lpc32xx: Use priv_data instead of platdataAxel Lin
The LPC32XX GPIO driver platdata currently contains GPIO state information, which should go into priv_data. Thus rename lpc32xx_gpio_platdata to lpc32xx_gpio_priv and convert to use dev_get_priv() instead. Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
2015-04-10lpc32xx: add GPIO supportAlbert ARIBAUD \(3ADEV\)
This driver only supports Driver Model, not legacy model. Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>