This patch allows for gpio controllers that deviate from those found on traditional davinci socs. davinci_soc_info has an added field to indicate the soc-specific gpio controller type. The gpio initialization code then bails out of necessary.
More elements (tnetv107x) to be added later into enum davinci_gpio_type. Signed-off-by: Cyril Chemparathy <[email protected]> Tested-by: Sandeep Paulraj <[email protected]> --- arch/arm/mach-davinci/da830.c | 1 + arch/arm/mach-davinci/da850.c | 1 + arch/arm/mach-davinci/dm355.c | 1 + arch/arm/mach-davinci/dm365.c | 1 + arch/arm/mach-davinci/dm644x.c | 1 + arch/arm/mach-davinci/dm646x.c | 1 + arch/arm/mach-davinci/gpio.c | 3 +++ arch/arm/mach-davinci/include/mach/common.h | 1 + arch/arm/mach-davinci/include/mach/gpio.h | 4 ++++ 9 files changed, 14 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c index 168f277..c4b30c4 100644 --- a/arch/arm/mach-davinci/da830.c +++ b/arch/arm/mach-davinci/da830.c @@ -1199,6 +1199,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = { .intc_irq_prios = da830_default_priorities, .intc_irq_num = DA830_N_CP_INTC_IRQ, .timer_info = &da830_timer_info, + .gpio_type = GPIO_TYPE_DAVINCI, .gpio_base = IO_ADDRESS(DA8XX_GPIO_BASE), .gpio_num = 128, .gpio_irq = IRQ_DA8XX_GPIO0, diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 27eb32e..2aa9748 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -1084,6 +1084,7 @@ static struct davinci_soc_info davinci_soc_info_da850 = { .intc_irq_prios = da850_default_priorities, .intc_irq_num = DA850_N_CP_INTC_IRQ, .timer_info = &da850_timer_info, + .gpio_type = GPIO_TYPE_DAVINCI, .gpio_base = IO_ADDRESS(DA8XX_GPIO_BASE), .gpio_num = 144, .gpio_irq = IRQ_DA8XX_GPIO0, diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index 5efce70..f9a54ff 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -859,6 +859,7 @@ static struct davinci_soc_info davinci_soc_info_dm355 = { .intc_irq_prios = dm355_default_priorities, .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm355_timer_info, + .gpio_type = GPIO_TYPE_DAVINCI, .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE), .gpio_num = 104, .gpio_irq = IRQ_DM355_GPIOBNK0, diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index 871be5a..d81c440 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -1063,6 +1063,7 @@ static struct davinci_soc_info davinci_soc_info_dm365 = { .intc_irq_prios = dm365_default_priorities, .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm365_timer_info, + .gpio_type = GPIO_TYPE_DAVINCI, .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE), .gpio_num = 104, .gpio_irq = IRQ_DM365_GPIO0, diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index 23cbe9d..4af349e 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -748,6 +748,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = { .intc_irq_prios = dm644x_default_priorities, .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm644x_timer_info, + .gpio_type = GPIO_TYPE_DAVINCI, .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE), .gpio_num = 71, .gpio_irq = IRQ_GPIOBNK0, diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index b67b997..899859c 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -858,6 +858,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = { .intc_irq_prios = dm646x_default_priorities, .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm646x_timer_info, + .gpio_type = GPIO_TYPE_DAVINCI, .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE), .gpio_num = 43, /* Only 33 usable */ .gpio_irq = IRQ_DM646X_GPIOBNK0, diff --git a/arch/arm/mach-davinci/gpio.c b/arch/arm/mach-davinci/gpio.c index 082a098..3a78897 100644 --- a/arch/arm/mach-davinci/gpio.c +++ b/arch/arm/mach-davinci/gpio.c @@ -143,6 +143,9 @@ static int __init davinci_gpio_setup(void) struct davinci_soc_info *soc_info = &davinci_soc_info; struct davinci_gpio_regs *regs; + if (soc_info->gpio_type != GPIO_TYPE_DAVINCI) + return 0; + /* * The gpio banks conceptually expose a segmented bitmap, * and "ngpio" is one more than the largest zero-based diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index c85c795..174619b 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -56,6 +56,7 @@ struct davinci_soc_info { u8 *intc_irq_prios; unsigned long intc_irq_num; struct davinci_timer_info *timer_info; + int gpio_type; void __iomem *gpio_base; unsigned gpio_num; unsigned gpio_irq; diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h index a8ca4ce..33962c3 100644 --- a/arch/arm/mach-davinci/include/mach/gpio.h +++ b/arch/arm/mach-davinci/include/mach/gpio.h @@ -21,6 +21,10 @@ #define DAVINCI_GPIO_BASE 0x01C67000 +enum davinci_gpio_type { + GPIO_TYPE_DAVINCI = 0, +}; + /* * basic gpio routines * -- 1.6.3.3 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
