From bd763482c82ea24aacb51e0ba92b24074143bc86 Mon Sep 17 00:00:00 2001 From: Eyal Reizer Date: Wed, 29 Apr 2015 17:50:03 +0300 Subject: [PATCH] wl18xx: wlan_irq: support platform dependent interrupt types * Interrupt request need to happen when the wilink chip is powered on and driving the wlan_irq line. This avoids spurious interrupt issues that are a result of different external pulls configuration on different platforms * Allow working with wl18xx level-low and falling edge irqs by configuring wl18xx to invert the device interrupt Signed-off-by: Eyal Reizer Signed-off-by: Kalle Valo --- drivers/net/wireless/ti/wl18xx/main.c | 26 +++++++++++++++++++++++++- drivers/net/wireless/ti/wl18xx/reg.h | 1 + drivers/net/wireless/ti/wlcore/main.c | 26 ++++++++++++++------------ 3 files changed, 40 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c index 717c4f5a02c2..dc48448b76c0 100644 --- a/drivers/net/wireless/ti/wl18xx/main.c +++ b/drivers/net/wireless/ti/wl18xx/main.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "../wlcore/wlcore.h" #include "../wlcore/debug.h" @@ -578,7 +579,7 @@ static struct wl18xx_priv_conf wl18xx_default_priv_conf = { static const struct wlcore_partition_set wl18xx_ptable[PART_TABLE_LEN] = { [PART_TOP_PRCM_ELP_SOC] = { - .mem = { .start = 0x00A02000, .size = 0x00010000 }, + .mem = { .start = 0x00A00000, .size = 0x00012000 }, .reg = { .start = 0x00807000, .size = 0x00005000 }, .mem2 = { .start = 0x00800000, .size = 0x0000B000 }, .mem3 = { .start = 0x00000000, .size = 0x00000000 }, @@ -862,6 +863,7 @@ static int wl18xx_pre_upload(struct wl1271 *wl) { u32 tmp; int ret; + u16 irq_invert; BUILD_BUG_ON(sizeof(struct wl18xx_mac_and_phy_params) > WL18XX_PHY_INIT_MEM_SIZE); @@ -911,6 +913,28 @@ static int wl18xx_pre_upload(struct wl1271 *wl) /* re-enable FDSP clock */ ret = wlcore_write32(wl, WL18XX_PHY_FPGA_SPARE_1, MEM_FDSP_CLK_120_ENABLE); + if (ret < 0) + goto out; + + ret = irq_get_trigger_type(wl->irq); + if ((ret == IRQ_TYPE_LEVEL_LOW) || (ret == IRQ_TYPE_EDGE_FALLING)) { + wl1271_info("using inverted interrupt logic: %d", ret); + ret = wlcore_set_partition(wl, + &wl->ptable[PART_TOP_PRCM_ELP_SOC]); + if (ret < 0) + goto out; + + ret = wl18xx_top_reg_read(wl, TOP_FN0_CCCR_REG_32, &irq_invert); + if (ret < 0) + goto out; + + irq_invert |= BIT(1); + ret = wl18xx_top_reg_write(wl, TOP_FN0_CCCR_REG_32, irq_invert); + if (ret < 0) + goto out; + + ret = wlcore_set_partition(wl, &wl->ptable[PART_PHY_INIT]); + } out: return ret; diff --git a/drivers/net/wireless/ti/wl18xx/reg.h b/drivers/net/wireless/ti/wl18xx/reg.h index a433a75f3cd7..bac2364c8e72 100644 --- a/drivers/net/wireless/ti/wl18xx/reg.h +++ b/drivers/net/wireless/ti/wl18xx/reg.h @@ -109,6 +109,7 @@ #define WL18XX_WELP_ARM_COMMAND (WL18XX_REGISTERS_BASE + 0x7100) #define WL18XX_ENABLE (WL18XX_REGISTERS_BASE + 0x01543C) +#define TOP_FN0_CCCR_REG_32 (WL18XX_TOP_OCP_BASE + 0x64) /* PRCM registers */ #define PLATFORM_DETECTION 0xA0E3E0 diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index 0be807951afe..c39a07b16591 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -5966,10 +5966,6 @@ static int wl12xx_get_hw_info(struct wl1271 *wl) { int ret; - ret = wl12xx_set_power_on(wl); - if (ret < 0) - return ret; - ret = wlcore_read_reg(wl, REG_CHIP_ID_B, &wl->chip.id); if (ret < 0) goto out; @@ -5985,7 +5981,6 @@ static int wl12xx_get_hw_info(struct wl1271 *wl) ret = wl->ops->get_mac(wl); out: - wl1271_power_off(wl); return ret; } @@ -6432,10 +6427,22 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context) else wl->irq_flags |= IRQF_ONESHOT; + ret = wl12xx_set_power_on(wl); + if (ret < 0) + goto out_free_nvs; + + ret = wl12xx_get_hw_info(wl); + if (ret < 0) { + wl1271_error("couldn't get hw info"); + wl1271_power_off(wl); + goto out_free_nvs; + } + ret = request_threaded_irq(wl->irq, hardirq_fn, wlcore_irq, wl->irq_flags, pdev->name, wl); if (ret < 0) { - wl1271_error("request_irq() failed: %d", ret); + wl1271_error("interrupt configuration failed"); + wl1271_power_off(wl); goto out_free_nvs; } @@ -6449,12 +6456,7 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context) } #endif disable_irq(wl->irq); - - ret = wl12xx_get_hw_info(wl); - if (ret < 0) { - wl1271_error("couldn't get hw info"); - goto out_irq; - } + wl1271_power_off(wl); ret = wl->ops->identify_chip(wl); if (ret < 0) -- 2.11.0