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| author | Sang-Jun Park <sj2202.park@samsung.com> | 2011-08-03 17:40:28 +0900 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2011-08-04 18:10:41 -0700 |
| commit | c816016baefc3ce9cc992291fb5c7c4322d1a766 (patch) | |
| tree | 0462924338aef4473ee0415260c245bd55f7df69 /arch/arm/mach-omap2/board-tuna-connector.c | |
| parent | 6743a2e114a7603a34d5286942557330663f67e3 (diff) | |
| download | kernel_samsung_tuna-c816016baefc3ce9cc992291fb5c7c4322d1a766.zip kernel_samsung_tuna-c816016baefc3ce9cc992291fb5c7c4322d1a766.tar.gz kernel_samsung_tuna-c816016baefc3ce9cc992291fb5c7c4322d1a766.tar.bz2 | |
ARM: omap4: tuna: export a uart_sel gpio to switch a uart (AP/CP)
Switching uart function must be implemented for Factory Test.
So export a gpio to sysfs to control a switch value by using
"/sys/class/sec/uart_switch/UART_SEL/value"
Change-Id: I8cedc2168035196e3a4f1a66b495af010c0f4917
Signed-off-by: Sang-Jun Park <sj2202.park@samsung.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-tuna-connector.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-tuna-connector.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-tuna-connector.c b/arch/arm/mach-omap2/board-tuna-connector.c index e5f0d30..338fcc5 100644 --- a/arch/arm/mach-omap2/board-tuna-connector.c +++ b/arch/arm/mach-omap2/board-tuna-connector.c @@ -330,6 +330,25 @@ static int tuna_otg_set_suspend(struct otg_transceiver *otg, int suspend) return omap4430_phy_suspend(otg->dev, suspend); } +static void omap4_tuna_uart_switch_init(void) +{ + struct device *uartswitch_dev; + + uartswitch_dev = device_create(sec_class, NULL, 0, NULL, "uart_switch"); + if (IS_ERR(uartswitch_dev)) { + pr_err("Failed to create device(uart_switch)!\n"); + return; + } + + /* IF_UART_SEL - GPIO 101 */ + omap_mux_init_gpio(GPIO_IF_UART_SEL, OMAP_PIN_OUTPUT); + gpio_request(GPIO_IF_UART_SEL, "uart_sel"); + gpio_direction_output(GPIO_IF_UART_SEL, 1); + + gpio_export(GPIO_IF_UART_SEL, 1); + gpio_export_link(uartswitch_dev, "UART_SEL", GPIO_IF_UART_SEL); +} + int __init omap4_tuna_connector_init(void) { struct tuna_otg *tuna_otg = &tuna_otg_xceiv; @@ -390,5 +409,7 @@ int __init omap4_tuna_connector_init(void) i2c_register_board_info(4, tuna_connector_i2c4_boardinfo, ARRAY_SIZE(tuna_connector_i2c4_boardinfo)); + omap4_tuna_uart_switch_init(); + return 0; } |