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| author |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-02 09:58:49 -0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-02 09:58:49 -0400 |
| commit | 9e3be1edbe5ca57df51140b523168237b3a01f4d (patch) | |
| tree | a72c0ec1ce0fbcdcd12ecb6aad9bedcc94b94f9d /arch/mips/alchemy/common/platform.c | |
| parent | ASoC: Fix SND_SOC_ALL_CODECS typo for alc5623 (diff) | |
| parent | Merge commit 'v2.6.37-rc1' into for-2.6.37 (diff) | |
| download | linux-dev-9e3be1edbe5ca57df51140b523168237b3a01f4d.tar.xz linux-dev-9e3be1edbe5ca57df51140b523168237b3a01f4d.zip | |
Merge branch 'for-2.6.37' into HEAD
WARN() fix from Joe moved.
Conflicts:
sound/soc/codecs/wm_hubs.c
Diffstat (limited to 'arch/mips/alchemy/common/platform.c')
| -rw-r--r-- | arch/mips/alchemy/common/platform.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c index 1dc55ee2681b..3691630931d6 100644 --- a/arch/mips/alchemy/common/platform.c +++ b/arch/mips/alchemy/common/platform.c @@ -24,6 +24,33 @@ #include <prom.h> +static void alchemy_8250_pm(struct uart_port *port, unsigned int state, + unsigned int old_state) +{ + switch (state) { + case 0: + if ((__raw_readl(port->membase + UART_MOD_CNTRL) & 3) != 3) { + /* power-on sequence as suggested in the databooks */ + __raw_writel(0, port->membase + UART_MOD_CNTRL); + wmb(); + __raw_writel(1, port->membase + UART_MOD_CNTRL); + wmb(); + } + __raw_writel(3, port->membase + UART_MOD_CNTRL); /* full on */ + wmb(); + serial8250_do_pm(port, state, old_state); + break; + case 3: /* power off */ + serial8250_do_pm(port, state, old_state); + __raw_writel(0, port->membase + UART_MOD_CNTRL); + wmb(); + break; + default: + serial8250_do_pm(port, state, old_state); + break; + } +} + #define PORT(_base, _irq) \ { \ .mapbase = _base, \ @@ -33,6 +60,7 @@ .flags = UPF_SKIP_TEST | UPF_IOREMAP | \ UPF_FIXED_TYPE, \ .type = PORT_16550A, \ + .pm = alchemy_8250_pm, \ } static struct plat_serial8250_port au1x00_uart_data[] = { |