linux-toradex.git - Linux kernel for Apalis, Colibri and Verdin modules

Age	Commit message (Collapse)	Author
2011-02-28	davinci: tnetv107x: fix register indexing for GPIOs numbers > 31	Hirosh Dabui
	This patch fix a bug in the register indexing for GPIOs numbers > 31 to get the relevant hardware registers of tnetv107x to control the GPIOs. In the structure tnetv107x_gpio_regs: struct tnetv107x_gpio_regs { u32 idver; u32 data_in[3]; u32 data_out[3]; u32 direction[3]; u32 enable[3]; }; The GPIO hardware register addresses of tnetv107x are stored. The chip implements 3 registers of each entity to serve 96 GPIOs, each register provides a subset of 32 GPIOs. The driver provides these macros: gpio_reg_set_bit, gpio_reg_get_bit and gpio_reg_clear_bit. The bug implied the use of macros to access the relevant hardware register e.g. the driver code used the macro like this: 'gpio_reg_clear_bit(&reg->data_out, gpio)' But it has to be used like this: 'gpio_reg_clear_bit(reg->data_out, gpio)'. The different results are shown here: - &reg->data_out + 1 (it will add the full array size of data_out i.e. 12 bytes) - reg->data_out + 1 (it will increment only the size of data_out i.e. only 4 bytes) Acked-by: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Hirosh Dabui <hirosh.dabui@snom.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2010-06-21	Davinci: tnetv107x initial gpio support	Cyril Chemparathy
	This patch adds support for the tnetv107x gpio controller. Key differences between davinci and tnetv107x controllers: - register map - davinci's controller is organized into banks of 32 gpios, tnetv107x has a single space with arrays of registers for in, out, direction, etc. - davinci's controller has separate set/clear registers for output, tnetv107x has a single direct mapped register. This patch does not yet add gpio irq support on this controller. Signed-off-by: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>