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Remove an old mistake of mine. This has sneak in the code i sent to gonzo

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at that time, but AFAIK it is only used on routerboards.

Enabling GPIO_FUNC_SPI_CS[1|2]_EN will claim the use of gpio pins 0 and 1
respectivelly for use as SPI CS pins.

When really needed, this can still be enabled on kernel hints using the
function_set and function_clear knobs.
This commit is contained in:
Luiz Otavio O Souza 2014-05-10 12:58:18 +00:00
parent dd75f2c5eb
commit 9cce5d9339
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=265814
1 changed files with 0 additions and 10 deletions
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10
sys/mips/atheros/ar71xx_gpio.c
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@ -352,7 +352,6 @@ ar71xx_gpio_attach(device_t dev)
int error = 0;
int i, j, maxpin;
int mask, pinon;
int old = 0;
KASSERT((device_get_unit(dev) == 0),
("ar71xx_gpio: Only one gpio module supported"));
@ -391,19 +390,12 @@ ar71xx_gpio_attach(device_t dev)
"function_set", &mask) == 0) {
device_printf(dev, "function_set: 0x%x\n", mask);
ar71xx_gpio_function_enable(sc, mask);
old = 1;
}
/* Disable function bits that are required */
if (resource_int_value(device_get_name(dev), device_get_unit(dev),
"function_clear", &mask) == 0) {
device_printf(dev, "function_clear: 0x%x\n", mask);
ar71xx_gpio_function_disable(sc, mask);
old = 1;
}
/* Handle previous behaviour */
if (old == 0) {
ar71xx_gpio_function_enable(sc, GPIO_FUNC_SPI_CS1_EN);
ar71xx_gpio_function_enable(sc, GPIO_FUNC_SPI_CS2_EN);
}
/* Configure all pins as input */
@ -457,8 +449,6 @@ ar71xx_gpio_detach(device_t dev)
KASSERT(mtx_initialized(&sc->gpio_mtx), ("gpio mutex not initialized"));
ar71xx_gpio_function_disable(sc, GPIO_FUNC_SPI_CS1_EN);
ar71xx_gpio_function_disable(sc, GPIO_FUNC_SPI_CS2_EN);
bus_generic_detach(dev);
if (sc->gpio_mem_res)