diff options
-rw-r--r-- | arch/arm/mach-tegra/board-cardhu-sdhci.c | 21 | ||||
-rw-r--r-- | arch/arm/mach-tegra/board-enterprise-sdhci.c | 21 | ||||
-rw-r--r-- | arch/arm/mach-tegra/board-kai-sdhci.c | 19 |
3 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-cardhu-sdhci.c b/arch/arm/mach-tegra/board-cardhu-sdhci.c index d8be9fe6747f..df7177fb34a7 100644 --- a/arch/arm/mach-tegra/board-cardhu-sdhci.c +++ b/arch/arm/mach-tegra/board-cardhu-sdhci.c @@ -28,6 +28,7 @@ #include <mach/irqs.h> #include <mach/iomap.h> #include <mach/sdhci.h> +#include <mach/io_dpd.h> #include "gpio-names.h" #include "board.h" @@ -251,11 +252,31 @@ static int cardhu_wifi_set_carddetect(int val) static int cardhu_wifi_power(int on) { + struct tegra_io_dpd *sd_dpd; + pr_debug("%s: %d\n", __func__, on); + + /* + * FIXME : we need to revisit IO DPD code + * on how should multiple pins under DPD get controlled + * + * cardhu GPIO WLAN enable is part of SDMMC3 pin group + */ + sd_dpd = tegra_io_dpd_get(&tegra_sdhci_device2.dev); + if (sd_dpd) { + mutex_lock(&sd_dpd->delay_lock); + tegra_io_dpd_disable(sd_dpd); + mutex_unlock(&sd_dpd->delay_lock); + } gpio_set_value(CARDHU_WLAN_PWR, on); mdelay(100); gpio_set_value(CARDHU_WLAN_RST, on); mdelay(200); + if (sd_dpd) { + mutex_lock(&sd_dpd->delay_lock); + tegra_io_dpd_enable(sd_dpd); + mutex_unlock(&sd_dpd->delay_lock); + } return 0; } diff --git a/arch/arm/mach-tegra/board-enterprise-sdhci.c b/arch/arm/mach-tegra/board-enterprise-sdhci.c index 7a5632601fe6..8032f8105bed 100644 --- a/arch/arm/mach-tegra/board-enterprise-sdhci.c +++ b/arch/arm/mach-tegra/board-enterprise-sdhci.c @@ -27,6 +27,7 @@ #include <mach/irqs.h> #include <mach/iomap.h> #include <mach/sdhci.h> +#include <mach/io_dpd.h> #include "gpio-names.h" #include "board.h" @@ -221,11 +222,31 @@ static int enterprise_wifi_set_carddetect(int val) static int enterprise_wifi_power(int on) { + struct tegra_io_dpd *sd_dpd; + pr_debug("%s: %d\n", __func__, on); + + /* + * FIXME : we need to revisit IO DPD code + * on how should multiple pins under DPD get controlled + * + * enterprise GPIO WLAN enable is part of SDMMC1 pin group + */ + sd_dpd = tegra_io_dpd_get(&tegra_sdhci_device0.dev); + if (sd_dpd) { + mutex_lock(&sd_dpd->delay_lock); + tegra_io_dpd_disable(sd_dpd); + mutex_unlock(&sd_dpd->delay_lock); + } gpio_set_value(ENTERPRISE_WLAN_PWR, on); mdelay(100); gpio_set_value(ENTERPRISE_WLAN_RST, on); mdelay(200); + if (sd_dpd) { + mutex_lock(&sd_dpd->delay_lock); + tegra_io_dpd_enable(sd_dpd); + mutex_unlock(&sd_dpd->delay_lock); + } return 0; } diff --git a/arch/arm/mach-tegra/board-kai-sdhci.c b/arch/arm/mach-tegra/board-kai-sdhci.c index 0fa39ccf475d..70ba7bcdb202 100644 --- a/arch/arm/mach-tegra/board-kai-sdhci.c +++ b/arch/arm/mach-tegra/board-kai-sdhci.c @@ -28,6 +28,7 @@ #include <mach/irqs.h> #include <mach/iomap.h> #include <mach/sdhci.h> +#include <mach/io_dpd.h> #include "gpio-names.h" #include "board.h" @@ -202,8 +203,21 @@ static int kai_wifi_set_carddetect(int val) static int kai_wifi_power(int power_on) { + struct tegra_io_dpd *sd_dpd; pr_err("Powering %s wifi\n", (power_on ? "on" : "off")); + /* + * FIXME : we need to revisit IO DPD code + * on how should multiple pins under DPD get controlled + * + * kai GPIO WLAN enable is part of SDMMC3 pin group + */ + sd_dpd = tegra_io_dpd_get(&tegra_sdhci_device2.dev); + if (sd_dpd) { + mutex_lock(&sd_dpd->delay_lock); + tegra_io_dpd_disable(sd_dpd); + mutex_unlock(&sd_dpd->delay_lock); + } if (power_on) { gpio_set_value(KAI_WLAN_EN, 1); mdelay(15); @@ -214,6 +228,11 @@ static int kai_wifi_power(int power_on) } else { gpio_set_value(KAI_WLAN_EN, 0); } + if (sd_dpd) { + mutex_lock(&sd_dpd->delay_lock); + tegra_io_dpd_enable(sd_dpd); + mutex_unlock(&sd_dpd->delay_lock); + } return 0; } |