diff options
Diffstat (limited to 'target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch')
-rw-r--r-- | target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch b/target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch new file mode 100644 index 0000000..83de7b1 --- /dev/null +++ b/target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch @@ -0,0 +1,76 @@ +--- a/arch/mips/ath79/dev-wmac.c ++++ b/arch/mips/ath79/dev-wmac.c +@@ -18,9 +18,11 @@ + #include <linux/etherdevice.h> + #include <linux/platform_device.h> + #include <linux/ath9k_platform.h> ++#include <linux/gpio.h> + + #include <asm/mach-ath79/ath79.h> + #include <asm/mach-ath79/ar71xx_regs.h> ++#include "common.h" + #include "dev-wmac.h" + + static u8 ath79_wmac_mac[ETH_ALEN]; +@@ -311,6 +313,51 @@ void __init ath79_wmac_set_tx_gain_buffa + ath79_wmac_data.tx_gain_buffalo = true; + } + ++static int ath79_request_ext_lna_gpio(unsigned chain, int gpio) ++{ ++ char buf[32]; ++ char *label; ++ int err; ++ ++ scnprintf(buf, sizeof(buf), "external LNA%u", chain); ++ label = kstrdup(buf, GFP_KERNEL); ++ ++ err = gpio_request_one(gpio, GPIOF_DIR_OUT | GPIOF_INIT_LOW, label); ++ if (err) { ++ pr_err("unable to request GPIO%d for external LNA%u\n", ++ gpio, chain); ++ kfree(label); ++ } ++ ++ return err; ++} ++ ++static void ar934x_set_ext_lna_gpio(unsigned chain, int gpio) ++{ ++ unsigned int sel; ++ int err; ++ ++ if (WARN_ON(chain > 1)) ++ return; ++ ++ err = ath79_request_ext_lna_gpio(chain, gpio); ++ if (err) ++ return; ++ ++ if (chain == 0) ++ sel = AR934X_GPIO_OUT_EXT_LNA0; ++ else ++ sel = AR934X_GPIO_OUT_EXT_LNA1; ++ ++ ath79_gpio_output_select(gpio, sel); ++} ++ ++void __init ath79_wmac_set_ext_lna_gpio(unsigned chain, int gpio) ++{ ++ if (soc_is_ar934x()) ++ ar934x_set_ext_lna_gpio(chain, gpio); ++} ++ + void __init ath79_register_wmac(u8 *cal_data, u8 *mac_addr) + { + if (soc_is_ar913x()) +--- a/arch/mips/ath79/dev-wmac.h ++++ b/arch/mips/ath79/dev-wmac.h +@@ -17,6 +17,7 @@ void ath79_register_wmac_simple(void); + void ath79_wmac_disable_2ghz(void); + void ath79_wmac_disable_5ghz(void); + void ath79_wmac_set_tx_gain_buffalo(void); ++void ath79_wmac_set_ext_lna_gpio(unsigned chain, int gpio); + + bool ar93xx_wmac_read_mac_address(u8 *dest); + |