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-rw-r--r--drivers/net/wireless/microchip/wilc1000/netdev.c1
-rw-r--r--drivers/net/wireless/microchip/wilc1000/netdev.h1
-rw-r--r--drivers/net/wireless/microchip/wilc1000/sdio.c2
-rw-r--r--drivers/net/wireless/microchip/wilc1000/spi.c64
-rw-r--r--drivers/net/wireless/microchip/wilc1000/wlan.c29
5 files changed, 78 insertions, 19 deletions
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.c b/drivers/net/wireless/microchip/wilc1000/netdev.c
index 03e3485d7e7f..643bddaae32a 100644
--- a/drivers/net/wireless/microchip/wilc1000/netdev.c
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.c
@@ -905,7 +905,6 @@ void wilc_netdev_cleanup(struct wilc *wilc)
wilc_wlan_cfg_deinit(wilc);
wlan_deinit_locks(wilc);
- kfree(wilc->bus_data);
wiphy_unregister(wilc->wiphy);
wiphy_free(wilc->wiphy);
}
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.h b/drivers/net/wireless/microchip/wilc1000/netdev.h
index 6c0e634d0249..a067274c2014 100644
--- a/drivers/net/wireless/microchip/wilc1000/netdev.h
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.h
@@ -212,6 +212,7 @@ struct wilc {
s8 mac_status;
struct clk *rtc_clk;
bool initialized;
+ u32 chipid;
bool power_save_mode;
int dev_irq_num;
int close;
diff --git a/drivers/net/wireless/microchip/wilc1000/sdio.c b/drivers/net/wireless/microchip/wilc1000/sdio.c
index 26ebf6664342..ec595dbd8959 100644
--- a/drivers/net/wireless/microchip/wilc1000/sdio.c
+++ b/drivers/net/wireless/microchip/wilc1000/sdio.c
@@ -167,9 +167,11 @@ free:
static void wilc_sdio_remove(struct sdio_func *func)
{
struct wilc *wilc = sdio_get_drvdata(func);
+ struct wilc_sdio *sdio_priv = wilc->bus_data;
clk_disable_unprepare(wilc->rtc_clk);
wilc_netdev_cleanup(wilc);
+ kfree(sdio_priv);
}
static int wilc_sdio_reset(struct wilc *wilc)
diff --git a/drivers/net/wireless/microchip/wilc1000/spi.c b/drivers/net/wireless/microchip/wilc1000/spi.c
index e0871b89917d..2c2ed4b09efd 100644
--- a/drivers/net/wireless/microchip/wilc1000/spi.c
+++ b/drivers/net/wireless/microchip/wilc1000/spi.c
@@ -8,6 +8,7 @@
#include <linux/spi/spi.h>
#include <linux/crc7.h>
#include <linux/crc-itu-t.h>
+#include <linux/gpio/consumer.h>
#include "netdev.h"
#include "cfg80211.h"
@@ -45,6 +46,10 @@ struct wilc_spi {
bool probing_crc; /* true if we're probing chip's CRC config */
bool crc7_enabled; /* true if crc7 is currently enabled */
bool crc16_enabled; /* true if crc16 is currently enabled */
+ struct wilc_gpios {
+ struct gpio_desc *enable; /* ENABLE GPIO or NULL */
+ struct gpio_desc *reset; /* RESET GPIO or NULL */
+ } gpios;
};
static const struct wilc_hif_func wilc_hif_spi;
@@ -152,6 +157,50 @@ struct wilc_spi_special_cmd_rsp {
u8 status;
} __packed;
+static int wilc_parse_gpios(struct wilc *wilc)
+{
+ struct spi_device *spi = to_spi_device(wilc->dev);
+ struct wilc_spi *spi_priv = wilc->bus_data;
+ struct wilc_gpios *gpios = &spi_priv->gpios;
+
+ /* get ENABLE pin and deassert it (if it is defined): */
+ gpios->enable = devm_gpiod_get_optional(&spi->dev,
+ "enable", GPIOD_OUT_LOW);
+ /* get RESET pin and assert it (if it is defined): */
+ if (gpios->enable) {
+ /* if enable pin exists, reset must exist as well */
+ gpios->reset = devm_gpiod_get(&spi->dev,
+ "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(gpios->reset)) {
+ dev_err(&spi->dev, "missing reset gpio.\n");
+ return PTR_ERR(gpios->reset);
+ }
+ } else {
+ gpios->reset = devm_gpiod_get_optional(&spi->dev,
+ "reset", GPIOD_OUT_HIGH);
+ }
+ return 0;
+}
+
+static void wilc_wlan_power(struct wilc *wilc, bool on)
+{
+ struct wilc_spi *spi_priv = wilc->bus_data;
+ struct wilc_gpios *gpios = &spi_priv->gpios;
+
+ if (on) {
+ /* assert ENABLE: */
+ gpiod_set_value(gpios->enable, 1);
+ mdelay(5);
+ /* deassert RESET: */
+ gpiod_set_value(gpios->reset, 0);
+ } else {
+ /* assert RESET: */
+ gpiod_set_value(gpios->reset, 1);
+ /* deassert ENABLE: */
+ gpiod_set_value(gpios->enable, 0);
+ }
+}
+
static int wilc_bus_probe(struct spi_device *spi)
{
int ret;
@@ -171,6 +220,10 @@ static int wilc_bus_probe(struct spi_device *spi)
wilc->bus_data = spi_priv;
wilc->dev_irq_num = spi->irq;
+ ret = wilc_parse_gpios(wilc);
+ if (ret < 0)
+ goto netdev_cleanup;
+
wilc->rtc_clk = devm_clk_get_optional(&spi->dev, "rtc");
if (IS_ERR(wilc->rtc_clk)) {
ret = PTR_ERR(wilc->rtc_clk);
@@ -190,9 +243,11 @@ free:
static int wilc_bus_remove(struct spi_device *spi)
{
struct wilc *wilc = spi_get_drvdata(spi);
+ struct wilc_spi *spi_priv = wilc->bus_data;
clk_disable_unprepare(wilc->rtc_clk);
wilc_netdev_cleanup(wilc);
+ kfree(spi_priv);
return 0;
}
@@ -981,9 +1036,10 @@ static int wilc_spi_reset(struct wilc *wilc)
static int wilc_spi_deinit(struct wilc *wilc)
{
- /*
- * TODO:
- */
+ struct wilc_spi *spi_priv = wilc->bus_data;
+
+ spi_priv->isinit = false;
+ wilc_wlan_power(wilc, false);
return 0;
}
@@ -1004,6 +1060,8 @@ static int wilc_spi_init(struct wilc *wilc, bool resume)
dev_err(&spi->dev, "Fail cmd read chip id...\n");
}
+ wilc_wlan_power(wilc, true);
+
/*
* configure protocol
*/
diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c
index 3f339c2f46f1..fb5633a05fd5 100644
--- a/drivers/net/wireless/microchip/wilc1000/wlan.c
+++ b/drivers/net/wireless/microchip/wilc1000/wlan.c
@@ -1254,7 +1254,7 @@ void wilc_wlan_cleanup(struct net_device *dev)
wilc->rx_buffer = NULL;
kfree(wilc->tx_buffer);
wilc->tx_buffer = NULL;
- wilc->hif_func->hif_deinit(NULL);
+ wilc->hif_func->hif_deinit(wilc);
}
static int wilc_wlan_cfg_commit(struct wilc_vif *vif, int type,
@@ -1443,31 +1443,30 @@ release:
u32 wilc_get_chipid(struct wilc *wilc, bool update)
{
- static u32 chipid;
- u32 tempchipid = 0;
+ u32 chipid = 0;
u32 rfrevid = 0;
- if (chipid == 0 || update) {
- wilc->hif_func->hif_read_reg(wilc, WILC_CHIPID, &tempchipid);
+ if (wilc->chipid == 0 || update) {
+ wilc->hif_func->hif_read_reg(wilc, WILC_CHIPID, &chipid);
wilc->hif_func->hif_read_reg(wilc, WILC_RF_REVISION_ID,
&rfrevid);
- if (!is_wilc1000(tempchipid)) {
- chipid = 0;
- return chipid;
+ if (!is_wilc1000(chipid)) {
+ wilc->chipid = 0;
+ return wilc->chipid;
}
- if (tempchipid == WILC_1000_BASE_ID_2A) { /* 0x1002A0 */
+ if (chipid == WILC_1000_BASE_ID_2A) { /* 0x1002A0 */
if (rfrevid != 0x1)
- tempchipid = WILC_1000_BASE_ID_2A_REV1;
- } else if (tempchipid == WILC_1000_BASE_ID_2B) { /* 0x1002B0 */
+ chipid = WILC_1000_BASE_ID_2A_REV1;
+ } else if (chipid == WILC_1000_BASE_ID_2B) { /* 0x1002B0 */
if (rfrevid == 0x4)
- tempchipid = WILC_1000_BASE_ID_2B_REV1;
+ chipid = WILC_1000_BASE_ID_2B_REV1;
else if (rfrevid != 0x3)
- tempchipid = WILC_1000_BASE_ID_2B_REV2;
+ chipid = WILC_1000_BASE_ID_2B_REV2;
}
- chipid = tempchipid;
+ wilc->chipid = chipid;
}
- return chipid;
+ return wilc->chipid;
}
int wilc_wlan_init(struct net_device *dev)
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-03-26 22:38:34 +0000