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net: rfkill: rockchip: add vbat_gpio to control the wifi power supply

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Change-Id: I4746fd5c46c5e1a7df2bb18f80f5a8efee20605f
Signed-off-by: Alex Zhao <zzc@rock-chips.com>
This commit is contained in:
Alex Zhao 2017-10-16 11:11:12 +08:00 • committed by Huang, Tao
commit 5fda03d4a9
2 changed files with 20 additions and 2 deletions
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1
include/linux/rfkill-wlan.h Executable file → Normal file
View file

@ -30,6 +30,7 @@ struct rksdmmc_gpio_wifi_moudle {
bool wifi_power_remain;
struct rksdmmc_pmu mregulator;
struct rksdmmc_pmu ioregulator;
struct rksdmmc_gpio vbat_n;
struct rksdmmc_gpio power_n; //PMU_EN
struct rksdmmc_gpio reset_n; //SYSRET_B, DAIRST
struct rksdmmc_gpio vddio;

21
net/rfkill/rfkill-wlan.c
View file

@ -635,6 +635,14 @@ static int wlan_platdata_parse_dt(struct device *dev,
data->power_n.enable = (flags == GPIO_ACTIVE_HIGH)? 1:0;
LOG("%s: get property: WIFI,poweren_gpio = %d, flags = %d.\n", __func__, gpio, flags);
} else data->power_n.io = -1;
gpio = of_get_named_gpio_flags(node, "WIFI,vbat_gpio", 0, &flags);
if (gpio_is_valid(gpio)) {
data->vbat_n.io = gpio;
data->vbat_n.enable = (flags == GPIO_ACTIVE_HIGH) ? 1:0;
LOG("%s: get property: WIFI,vbat_gpio = %d, flags = %d.\n", __func__, gpio, flags);
} else {
data->vbat_n.io = -1;
}
gpio = of_get_named_gpio_flags(node, "WIFI,reset_gpio", 0, &flags);
if (gpio_is_valid(gpio)){
data->reset_n.io = gpio;
@ -752,15 +760,24 @@ static int rfkill_wlan_probe(struct platform_device *pdev)
LOG("%s: init gpio\n", __func__);
if (!pdata->mregulator.power_ctrl_by_pmu) {
ret = rfkill_rk_setup_gpio(&pdata->vbat_n, wlan_name, "wlan_vbat");
if (ret)
goto fail_alloc;
ret = rfkill_rk_setup_gpio(&pdata->power_n, wlan_name, "wlan_poweren");
if (ret) goto fail_alloc;
if (ret)
goto fail_alloc;
ret = rfkill_rk_setup_gpio(&pdata->reset_n, wlan_name, "wlan_reset");
if (ret) goto fail_alloc;
if (ret)
goto fail_alloc;
}
wake_lock_init(&(rfkill->wlan_irq_wl), WAKE_LOCK_SUSPEND, "rfkill_wlan_wake");
if (gpio_is_valid(pdata->vbat_n.io)) {
gpio_direction_output(pdata->vbat_n.io, pdata->vbat_n.enable);
}
// Turn off wifi power as default
if (gpio_is_valid(pdata->power_n.io))
{