diff options
| author | Seshendra Gadagottu <sgadagottu@nvidia.com> | 2011-11-17 11:35:08 +0530 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2011-12-15 11:40:13 +0530 |
| commit | 2ba736d71d0903d86290fe00505aacc18065d3cf (patch) | |
| tree | bfd9230959e2189007acba8879b335ad165c58a4 /arch/arm/mach-tegra/baseband-xmm-power2.c | |
| parent | 8c484387c9b969a21b7a032ec22da0b845dc05d5 (diff) | |
arm: tegra: comms: dynamic loading of hcd driver
ehci on/off mechanism is replaced with dynamic
add/removel of ehci-hcd driver.
BUG 787270
Reviewed-on: http://git-master/r/65091
(cherry picked from commit 50381a027547354140d599876f452ff6a304e330)
Change-Id: Ic9827c23fdbf367b87bb4ba153b65e7c867576d3
Reviewed-on: http://git-master/r/68391
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/baseband-xmm-power2.c')
| -rw-r--r-- | arch/arm/mach-tegra/baseband-xmm-power2.c | 63 |
1 files changed, 18 insertions, 45 deletions
diff --git a/arch/arm/mach-tegra/baseband-xmm-power2.c b/arch/arm/mach-tegra/baseband-xmm-power2.c index bdb3fe3cfba3..dd05202ba6ec 100644 --- a/arch/arm/mach-tegra/baseband-xmm-power2.c +++ b/arch/arm/mach-tegra/baseband-xmm-power2.c @@ -230,21 +230,12 @@ static void baseband_xmm_power2_flashless_pm_ver_lt_1130_step2 /* wait 1 ms */ mdelay(1); - /* turn on usb host controller */ - { - mm_segment_t oldfs; - struct file *filp; - oldfs = get_fs(); - set_fs(KERNEL_DS); - filp = filp_open(TEGRA_EHCI_DEVICE, O_RDWR, 0); - if (IS_ERR(filp) || (filp == NULL)) { - pr_err("open ehci_power failed\n"); - } else { - filp->f_op->write(filp, "1", 1, &filp->f_pos); - filp_close(filp, NULL); - } - set_fs(oldfs); - } + /* unregister usb host controller */ + if (baseband_power2_driver_data->hsic_unregister) + baseband_power2_driver_data->hsic_unregister( + baseband_power2_driver_data->modem.xmm.hsic_device); + else + pr_err("%s: hsic_unregister is missing\n", __func__); /* set IPC_HSIC_ACTIVE high */ gpio_set_value(baseband_power2_driver_data-> @@ -282,21 +273,12 @@ static void baseband_xmm_power2_flashless_pm_ver_ge_1130_step1 if (!baseband_power2_driver_data) return; - /* turn off usb host controller */ - { - mm_segment_t oldfs; - struct file *filp; - oldfs = get_fs(); - set_fs(KERNEL_DS); - filp = filp_open(TEGRA_EHCI_DEVICE, O_RDWR, 0); - if (IS_ERR(filp) || (filp == NULL)) { - pr_err("open ehci_power failed\n"); - } else { - filp->f_op->write(filp, "0", 1, &filp->f_pos); - filp_close(filp, NULL); - } - set_fs(oldfs); - } + /* unregister usb host controller */ + if (baseband_power2_driver_data->hsic_unregister) + baseband_power2_driver_data->hsic_unregister( + baseband_power2_driver_data->modem.xmm.hsic_device); + else + pr_err("%s: hsic_unregister is missing\n", __func__); /* wait X ms */ mdelay(X); @@ -326,21 +308,12 @@ static void baseband_xmm_power2_flashless_pm_ver_ge_1130_step2 /* wait Y ms */ mdelay(Y); - /* turn on usb host controller */ - { - mm_segment_t oldfs; - struct file *filp; - oldfs = get_fs(); - set_fs(KERNEL_DS); - filp = filp_open(TEGRA_EHCI_DEVICE, O_RDWR, 0); - if (IS_ERR(filp) || (filp == NULL)) { - pr_err("open ehci_power failed\n"); - } else { - filp->f_op->write(filp, "1", 1, &filp->f_pos); - filp_close(filp, NULL); - } - set_fs(oldfs); - } + /* register usb host controller */ + if (baseband_power2_driver_data->hsic_register) + baseband_power2_driver_data->modem.xmm.hsic_device = + baseband_power2_driver_data->hsic_register(); + else + pr_err("%s: hsic_register is missing\n", __func__); /* wait Z ms */ mdelay(Z); |