diff options
Diffstat (limited to 'target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch')
| -rw-r--r-- | target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch b/target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch new file mode 100644 index 0000000000..dee504fe50 --- /dev/null +++ b/target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch @@ -0,0 +1,40 @@ +From 34a9a634432a95d8ae9af86d41fdaf32fb039c2c Mon Sep 17 00:00:00 2001 +From: Gabor Juhos <juhosg@openwrt.org> +Date: Wed, 27 Mar 2013 21:10:14 +0100 +Subject: [PATCH 1/5] MIPS: ralink: fix uartmux group handling + + * don't try get 'ralink,uartmux' porperty if the pinmux.uart is + not initialized, + * don't touch 'mode' value if mux mask is zero + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +--- + arch/mips/ralink/pinmux.c | 12 ++++++++---- + 1 file changed, 8 insertions(+), 4 deletions(-) + +--- a/arch/mips/ralink/pinmux.c ++++ b/arch/mips/ralink/pinmux.c +@@ -56,15 +56,19 @@ void ralink_pinmux(void) + } + } + +- of_property_read_string(np, "ralink,uartmux", &uart); ++ uart = NULL; ++ if (rt_pinmux.uart) ++ of_property_read_string(np, "ralink,uartmux", &uart); ++ + if (uart) { + int m = ralink_mux_mask(uart, rt_pinmux.uart); +- mode |= rt_pinmux.uart_mask << rt_pinmux.uart_shift; ++ + if (m) { +- mode &= ~(m << rt_pinmux.uart_shift); ++ mode &= ~(rt_pinmux.uart_mask << rt_pinmux.uart_shift); ++ mode |= m << rt_pinmux.uart_shift; + pr_debug("pinmux: registered uartmux \"%s\"\n", uart); + } else { +- pr_debug("pinmux: registered uartmux \"gpio\"\n"); ++ pr_debug("pinmux: unknown uartmux \"%s\"\n", uart); + } + } + |