04.05.2013, 18:39, "John Crispin" <[email protected]>:
> Hi
>
> i just pushed a fix that addresses this problem properly ... (i hope)
>
+ of_property_read_string(np, "ralink,uartmux", &uart);
+ if (uart) {
+ mode |= rt_gpio_pinmux.uart_mask << rt_gpio_pinmux.uart_shift;
+ if (ralink_mux_mask(uart, rt_gpio_pinmux.uart, &m)) {
+ pr_err("pinmux: failed to load uartmux \"%s\"\n", uart);
+ } else {
+ if (m != rt_gpio_pinmux.uart_mask)
+ mode &= ~(m << rt_gpio_pinmux.uart_shift);
+ pr_debug("pinmux: registered uartmux \"%s\"\n", uart);
+ }
+ }
No need to check. This code obviously set inverted modes: 0->7 (uartf->gpio),
1->6 and so on. I think it should look like:
+ of_property_read_string(np, "ralink,uartmux", &uart);
+ if (uart) {
+ mode |= rt_gpio_pinmux.uart_mask << rt_gpio_pinmux.uart_shift;
/* set default gpio mode*/
+ if (ralink_mux_mask(uart, rt_gpio_pinmux.uart, &m)) {
+ pr_err("pinmux: failed to load uartmux \"%s\, set
\"gpio\" mode"\n", uart);
+ } else {
+ mode &= ~(rt_gpio_pinmux.uart_mask <<
rt_gpio_pinmux.uart_shift); /* clean gpio mode */
+ mode |= (m << rt_gpio_pinmux.uart_shift);
/* and set requested mode*/
+ pr_debug("pinmux: registered uartmux \"%s\"\n", uart);
+ }
+ }
or
+ of_property_read_string(np, "ralink,uartmux", &uart);
+ if (uart) {
+ if (ralink_mux_mask(uart, rt_gpio_pinmux.uart, &m)) {
+ mode |= rt_gpio_pinmux.uart_mask <<
rt_gpio_pinmux.uart_shift; /* set default gpio mode*/
+ pr_err("pinmux: failed to load uartmux \"%s\, set
\"gpio\" mode"\n", uart);
+ } else {
+ mode |= (m << rt_gpio_pinmux.uart_shift);
/* sipmly set requested mode*/
+ pr_debug("pinmux: registered uartmux \"%s\"\n", uart);
+ }
+ }
Am I right?
---
serge
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