From b78d8e59a6f611e229fab8ec3014c58eba975000 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 6 Jun 2011 00:07:55 +0800 Subject: gpio/mxc: Change gpio-mxc into an upstanding gpio driver The patch makes necessary changes on gpio-mxc as below to turn it into an upstanding gpio driver. * Add a list to save all mx2 ports references, so that mx2_gpio_irq_handler can walk through all interrupt status registers * Use readl/writel to replace mach-specific accessors __raw_readl/__raw_writel * Change mxc_gpio_init into mxc_gpio_probe function * Move "struct mxc_gpio_port" into gpio-mxc.c, as it needs not to be public at all, and also make some other cleanup on plat-mxc/include/mach/gpio.h at the same time And the patch then migrates mach-imx and mach-mx5 to the updated driver by adding corresponding platform devices. Signed-off-by: Shawn Guo Acked-by: Olof Johansson Acked-by: Sascha Hauer Signed-off-by: Grant Likely --- arch/arm/mach-mx5/mm.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) (limited to 'arch/arm/mach-mx5/mm.c') diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c index ff557301b42..800bb8b2108 100644 --- a/arch/arm/mach-mx5/mm.c +++ b/arch/arm/mach-mx5/mm.c @@ -69,8 +69,6 @@ void __init imx53_init_early(void) mxc_arch_reset_init(MX53_IO_ADDRESS(MX53_WDOG1_BASE_ADDR)); } -int imx51_register_gpios(void); - void __init mx51_init_irq(void) { unsigned long tzic_addr; @@ -86,11 +84,8 @@ void __init mx51_init_irq(void) panic("unable to map TZIC interrupt controller\n"); tzic_init_irq(tzic_virt); - imx51_register_gpios(); } -int imx53_register_gpios(void); - void __init mx53_init_irq(void) { unsigned long tzic_addr; @@ -103,5 +98,23 @@ void __init mx53_init_irq(void) panic("unable to map TZIC interrupt controller\n"); tzic_init_irq(tzic_virt); - imx53_register_gpios(); +} + +void __init imx51_soc_init(void) +{ + mxc_register_gpio(0, MX51_GPIO1_BASE_ADDR, SZ_16K, MX51_MXC_INT_GPIO1_LOW, MX51_MXC_INT_GPIO1_HIGH); + mxc_register_gpio(1, MX51_GPIO2_BASE_ADDR, SZ_16K, MX51_MXC_INT_GPIO2_LOW, MX51_MXC_INT_GPIO2_HIGH); + mxc_register_gpio(2, MX51_GPIO3_BASE_ADDR, SZ_16K, MX51_MXC_INT_GPIO3_LOW, MX51_MXC_INT_GPIO3_HIGH); + mxc_register_gpio(3, MX51_GPIO4_BASE_ADDR, SZ_16K, MX51_MXC_INT_GPIO4_LOW, MX51_MXC_INT_GPIO4_HIGH); +} + +void __init imx53_soc_init(void) +{ + mxc_register_gpio(0, MX53_GPIO1_BASE_ADDR, SZ_16K, MX53_INT_GPIO1_LOW, MX53_INT_GPIO1_HIGH); + mxc_register_gpio(1, MX53_GPIO2_BASE_ADDR, SZ_16K, MX53_INT_GPIO2_LOW, MX53_INT_GPIO2_HIGH); + mxc_register_gpio(2, MX53_GPIO3_BASE_ADDR, SZ_16K, MX53_INT_GPIO3_LOW, MX53_INT_GPIO3_HIGH); + mxc_register_gpio(3, MX53_GPIO4_BASE_ADDR, SZ_16K, MX53_INT_GPIO4_LOW, MX53_INT_GPIO4_HIGH); + mxc_register_gpio(4, MX53_GPIO5_BASE_ADDR, SZ_16K, MX53_INT_GPIO5_LOW, MX53_INT_GPIO5_HIGH); + mxc_register_gpio(5, MX53_GPIO6_BASE_ADDR, SZ_16K, MX53_INT_GPIO6_LOW, MX53_INT_GPIO6_HIGH); + mxc_register_gpio(6, MX53_GPIO7_BASE_ADDR, SZ_16K, MX53_INT_GPIO7_LOW, MX53_INT_GPIO7_HIGH); } -- cgit v1.2.3-18-g5258