diff options
| author | Sachin Nikam <snikam@nvidia.com> | 2011-01-20 20:05:27 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:46:24 -0800 |
| commit | 4a6c3959cb2995750ca91b2b29d933626ce28df3 (patch) | |
| tree | 1cbc2a77c1d82a66dc5bfef3d9f72b0b0d986b1a /arch/arm/mach-tegra/board-whistler-sdhci.c | |
| parent | b2e4896f22ad6400c408d4c1aae938e75ca306d9 (diff) | |
[ARM] tegra: sdhci: external sdcard hotplug gpio
Bug 779990
Original-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>
Rebase-Id: R605d925c23196b3c5a9b1575d7173126b569ff5d
Diffstat (limited to 'arch/arm/mach-tegra/board-whistler-sdhci.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-whistler-sdhci.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/board-whistler-sdhci.c b/arch/arm/mach-tegra/board-whistler-sdhci.c index 481c19b8ea90..8933864a6742 100644 --- a/arch/arm/mach-tegra/board-whistler-sdhci.c +++ b/arch/arm/mach-tegra/board-whistler-sdhci.c @@ -25,6 +25,8 @@ #include "board.h" +#define WHISTLER_EXT_SDCARD_DETECT TEGRA_GPIO_PI5 + static struct resource sdhci_resource0[] = { [0] = { .start = INT_SDMMC1, @@ -75,7 +77,7 @@ static struct tegra_sdhci_platform_data tegra_sdhci_platform_data0 = { 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, }; @@ -120,6 +122,18 @@ static struct platform_device tegra_sdhci_device3 = { 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_device0); |