I'm not sure but original code never works right. This patch works but in this
case uart_mask is default gpio mode (simply the same value as mode gpio).
--- pinmux.c.orig
+++ pinmux.c
@@ -59,12 +59,11 @@ void ralink_pinmux(void)
of_property_read_string(np, "ralink,uartmux", &uart);
if (uart) {
int m = ralink_mux_mask(uart, rt_gpio_pinmux.uart);
- mode |= rt_gpio_pinmux.uart_mask << rt_gpio_pinmux.uart_shift;
if (m) {
- mode &= ~(m << rt_gpio_pinmux.uart_shift);
mode |= (m << rt_gpio_pinmux.uart_shift);
pr_debug("pinmux: registered uartmux \"%s\"\n", uart);
} else {
+ mode |= rt_gpio_pinmux.uart_mask <<
rt_gpio_pinmux.uart_shift;
pr_debug("pinmux: registered uartmux \"gpio\"\n");
}
}
---
serge
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