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authorRichard Purdie <rpurdie@rpsys.net>2006-09-25 20:11:48 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-09-27 20:58:59 +0100
commit8d48427ecb0639593ccf14e807479b7873254ccb (patch)
tree7bcc5f49faf33515d5d65fae53d6670cfe76e5c3 /arch/arm/mach-sa1100
parent2dc94310bd94d0906febea7d0f7c188da620c952 (diff)
downloadop-kernel-dev-8d48427ecb0639593ccf14e807479b7873254ccb.zip
op-kernel-dev-8d48427ecb0639593ccf14e807479b7873254ccb.tar.gz
[ARM] 3847/2: Convert LOMOMO to use struct device for GPIOs
Convert LOMOMO to use struct device * for GPIOs instead of struct locomo_dev. This enables access to the GPIOs from code which is not a locomo device itself (such as audio). Access for gpio 31 is removed for error handling (no such hardware exists). Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-sa1100')
-rw-r--r--arch/arm/mach-sa1100/collie.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c
index a0dfa39..6496eb6 100644
--- a/arch/arm/mach-sa1100/collie.c
+++ b/arch/arm/mach-sa1100/collie.c
@@ -91,30 +91,29 @@ static struct mcp_plat_data collie_mcp_data = {
/*
* low-level UART features.
*/
-static struct locomo_dev *uart_dev = NULL;
+struct platform_device collie_locomo_device;
static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
{
- if (!uart_dev) return;
-
if (mctrl & TIOCM_RTS)
- locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 0);
+ locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
else
- locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 1);
+ locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
if (mctrl & TIOCM_DTR)
- locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 0);
+ locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
else
- locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 1);
+ locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
}
static u_int collie_uart_get_mctrl(struct uart_port *port)
{
int ret = TIOCM_CD;
unsigned int r;
- if (!uart_dev) return ret;
- r = locomo_gpio_read_output(uart_dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
+ r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
+ if (r == -ENODEV)
+ return ret;
if (r & LOCOMO_GPIO_CTS)
ret |= TIOCM_CTS;
if (r & LOCOMO_GPIO_DSR)
@@ -130,13 +129,11 @@ static struct sa1100_port_fns collie_port_fns __initdata = {
static int collie_uart_probe(struct locomo_dev *dev)
{
- uart_dev = dev;
return 0;
}
static int collie_uart_remove(struct locomo_dev *dev)
{
- uart_dev = NULL;
return 0;
}
@@ -170,7 +167,7 @@ static struct resource locomo_resources[] = {
},
};
-static struct platform_device locomo_device = {
+struct platform_device collie_locomo_device = {
.name = "locomo",
.id = 0,
.num_resources = ARRAY_SIZE(locomo_resources),
@@ -178,7 +175,7 @@ static struct platform_device locomo_device = {
};
static struct platform_device *devices[] __initdata = {
- &locomo_device,
+ &collie_locomo_device,
&colliescoop_device,
};
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