diff options
| author | Sachin Nikam <snikam@nvidia.com> | 2011-01-20 20:05:27 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-01-27 17:18:16 -0800 |
| commit | df60577195b53574b7ccf429110d56a472985578 (patch) | |
| tree | 5838263ec91262804cead3d57628db511732847a /arch | |
| parent | 0d6cb9eaa093fd3c60cbc3d1e877981552bba343 (diff) | |
[ARM] tegra: sdhci: external sdcard hotplug gpio
Bug 779990
Change-Id: I229d05da084ac15439e7b458f231f6f983776d4a
Reviewed-on: http://git-master/r/16404
Tested-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: Thomas Cherry <tcherry@nvidia.com>
Reviewed-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/board-whistler-sdhci.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/board-whistler-sdhci.c b/arch/arm/mach-tegra/board-whistler-sdhci.c index 10e5020c906f..71b461ff6566 100644 --- a/arch/arm/mach-tegra/board-whistler-sdhci.c +++ b/arch/arm/mach-tegra/board-whistler-sdhci.c @@ -34,6 +34,8 @@ #define WHISTLER_WLAN_PWR TEGRA_GPIO_PK5 #define WHISTLER_WLAN_RST TEGRA_GPIO_PK6 +#define WHISTLER_EXT_SDCARD_DETECT TEGRA_GPIO_PI5 + static void (*wifi_status_cb)(int card_present, void *dev_id); static void *wifi_status_cb_devid; @@ -175,7 +177,7 @@ static struct tegra_sdhci_platform_data tegra_sdhci_platform_data1 = { static struct tegra_sdhci_platform_data tegra_sdhci_platform_data2 = { .clk_id = NULL, .force_hs = 0, - .cd_gpio = -1, + .cd_gpio = WHISTLER_EXT_SDCARD_DETECT, .wp_gpio = -1, .power_gpio = -1, }; @@ -242,8 +244,21 @@ static int __init whistler_wifi_init(void) platform_device_register(&whistler_wifi_device); return 0; } + int __init whistler_sdhci_init(void) { + int ret; + + ret = gpio_request(WHISTLER_EXT_SDCARD_DETECT, "card_detect"); + if (ret < 0) { + tegra_sdhci_platform_data2.cd_gpio = -1; + pr_err("card_detect gpio not found\n"); + } + else { + tegra_gpio_enable(WHISTLER_EXT_SDCARD_DETECT); + gpio_direction_input(WHISTLER_EXT_SDCARD_DETECT); + } + platform_device_register(&tegra_sdhci_device3); platform_device_register(&tegra_sdhci_device2); platform_device_register(&tegra_sdhci_device1); |