From efa0526bad0e264dc27cd76b2c81a08f1f1c07d6 Mon Sep 17 00:00:00 2001
From: Mike Nicholson <Mike.Nicholson@multitech.com>
Date: Wed, 27 Feb 2019 18:11:34 -0600
Subject: Enable/disable murata in wl12xx SDIO driver; deglitch, remove
 pull-down on IRQ (to match current production)

---
 .../mtr/linux-4.9-mtr-device-tree.patch            |  2 +-
 .../mtr/wl12xx_enable_disable.patch                | 24 ++++++++++++++++++++++
 recipes-kernel/linux/linux-at91_4.9.87.bb          |  1 +
 3 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 recipes-kernel/linux/linux-at91-4.9.87/mtr/wl12xx_enable_disable.patch

(limited to 'recipes-kernel')

diff --git a/recipes-kernel/linux/linux-at91-4.9.87/mtr/linux-4.9-mtr-device-tree.patch b/recipes-kernel/linux/linux-at91-4.9.87/mtr/linux-4.9-mtr-device-tree.patch
index 95e3941..8c076be 100644
--- a/recipes-kernel/linux/linux-at91-4.9.87/mtr/linux-4.9-mtr-device-tree.patch
+++ b/recipes-kernel/linux/linux-at91-4.9.87/mtr/linux-4.9-mtr-device-tree.patch
@@ -75,7 +75,7 @@ diff -Naru linux-4.9.87.orig/arch/arm/boot/dts/mtr.dts linux-4.9.87/arch/arm/boo
 +				mmc0 {
 +					pinctrl_board_mmc0: mmc0-board {
 +						atmel,pins =
-+							<AT91_PIOA 26 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_DOWN         /* PA26 gpio A int pin pull down */
++							<AT91_PIOA 26 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH          /* PA26 gpio A int pin deglitch (external PU) */
 +							AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; /* PD15 gpio CD pin pull up and deglitch */
 +					};
 +				};
diff --git a/recipes-kernel/linux/linux-at91-4.9.87/mtr/wl12xx_enable_disable.patch b/recipes-kernel/linux/linux-at91-4.9.87/mtr/wl12xx_enable_disable.patch
new file mode 100644
index 0000000..f9baa14
--- /dev/null
+++ b/recipes-kernel/linux/linux-at91-4.9.87/mtr/wl12xx_enable_disable.patch
@@ -0,0 +1,24 @@
+diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c
+index 47fe7f96..fb209475 100644
+--- a/drivers/net/wireless/ti/wlcore/sdio.c
++++ b/drivers/net/wireless/ti/wlcore/sdio.c
+@@ -154,6 +154,9 @@ static int wl12xx_sdio_power_on(struct wl12xx_sdio_glue *glue)
+ 	struct sdio_func *func = dev_to_sdio_func(glue->dev);
+ 	struct mmc_card *card = func->card;
+ 
++  /* Multi-Tech MTR patch: Assert WL_EN (PA27) to enable Wi-Fi */
++  gpio_set_value(27, 1);
++
+ 	ret = pm_runtime_get_sync(&card->dev);
+ 	if (ret) {
+ 		/*
+@@ -185,6 +188,9 @@ static int wl12xx_sdio_power_off(struct wl12xx_sdio_glue *glue)
+ 	sdio_claim_host(func);
+ 	sdio_disable_func(func);
+ 	sdio_release_host(func);
++  
++  /* Multi-Tech MTR patch: De-assert WL_EN (PA27) to disable Wi-Fi */
++  gpio_set_value(27, 0);
+ 
+ 	/* Power off the card manually in case it wasn't powered off above */
+ 	ret = mmc_power_save_host(card->host);
diff --git a/recipes-kernel/linux/linux-at91_4.9.87.bb b/recipes-kernel/linux/linux-at91_4.9.87.bb
index 5358151..cf25638 100644
--- a/recipes-kernel/linux/linux-at91_4.9.87.bb
+++ b/recipes-kernel/linux/linux-at91_4.9.87.bb
@@ -64,6 +64,7 @@ SRC_URI_append_mtr = "\
             ${COMMON_PATCHES} \
             file://linux-4.9-mtr-device-tree.patch \
             file://fix-atmel-mci-reg-overloading.patch \
+            file://wl12xx_enable_disable.patch \
             "
 
 DTB_APPEND_mtcdt = "mtcdt"
-- 
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