brcm63xx: remove linux 4.4 support

[openwrt/openwrt.git] / target / linux / brcm63xx / patches-4.4 / 001-4.13-02-mdio_bus-handle-only-single-PHY-reset-GPIO.patch

diff --git a/target/linux/brcm63xx/patches-4.4/001-4.13-02-mdio_bus-handle-only-single-PHY-reset-GPIO.patch b/target/linux/brcm63xx/patches-4.4/001-4.13-02-mdio_bus-handle-only-single-PHY-reset-GPIO.patch
deleted file mode 100644 (file)
index 7ce5eb5..0000000
--- a/target/linux/brcm63xx/patches-4.4/001-4.13-02-mdio_bus-handle-only-single-PHY-reset-GPIO.patch
+++ /dev/null
@@ -1,120 +0,0 @@
-From d396e84c56047b303cac378dde4b2e5cc430b336 Mon Sep 17 00:00:00 2001
-From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
-Date: Mon, 12 Jun 2017 23:55:38 +0300
-Subject: [PATCH] mdio_bus: handle only single PHY reset GPIO
-
-Commit 4c5e7a2c0501 ("dt-bindings: mdio: Clarify binding document")
-declared that a MDIO reset GPIO property should have only a single GPIO
-reference/specifier, however the supporting code was left intact, still
-burdening the kernel with now apparently useless loops -- get rid of them.
-
-Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/phy/mdio_bus.c | 53 +++++++++++++++++-----------------------------
- drivers/of/of_mdio.c       |  1 -
- include/linux/phy.h        |  6 ++----
- 3 files changed, 21 insertions(+), 39 deletions(-)
-
---- a/drivers/net/phy/mdio_bus.c
-+++ b/drivers/net/phy/mdio_bus.c
-@@ -279,33 +279,22 @@ int __mdiobus_register(struct mii_bus *b
- 
-       mutex_init(&bus->mdio_lock);
- 
--      /* de-assert bus level PHY GPIO resets */
--      if (bus->num_reset_gpios > 0) {
--              bus->reset_gpiod = devm_kcalloc(&bus->dev,
--                                               bus->num_reset_gpios,
--                                               sizeof(struct gpio_desc *),
--                                               GFP_KERNEL);
--              if (!bus->reset_gpiod)
--                      return -ENOMEM;
--      }
--
--      for (i = 0; i < bus->num_reset_gpios; i++) {
--              gpiod = devm_gpiod_get_index(&bus->dev, "reset", i,
--                                           GPIOD_OUT_LOW);
--              if (IS_ERR(gpiod)) {
--                      err = PTR_ERR(gpiod);
--                      if (err != -ENOENT) {
--                              dev_err(&bus->dev,
--                                      "mii_bus %s couldn't get reset GPIO\n",
--                                      bus->id);
--                              return err;
--                      }
--              } else {
--                      bus->reset_gpiod[i] = gpiod;
--                      gpiod_set_value_cansleep(gpiod, 1);
--                      udelay(bus->reset_delay_us);
--                      gpiod_set_value_cansleep(gpiod, 0);
-+      /* de-assert bus level PHY GPIO reset */
-+      gpiod = devm_gpiod_get(&bus->dev, "reset", GPIOD_OUT_LOW);
-+      if (IS_ERR(gpiod)) {
-+              err = PTR_ERR(gpiod);
-+              if (err != -ENOENT) {
-+                      dev_err(&bus->dev,
-+                              "mii_bus %s couldn't get reset GPIO\n",
-+                              bus->id);
-+                      return err;
-               }
-+      } else  {
-+              bus->reset_gpiod = gpiod;
-+
-+              gpiod_set_value_cansleep(gpiod, 1);
-+              udelay(bus->reset_delay_us);
-+              gpiod_set_value_cansleep(gpiod, 0);
-       }
- 
-       if (bus->reset)
-@@ -337,10 +326,8 @@ error:
-       }
- 
-       /* Put PHYs in RESET to save power */
--      for (i = 0; i < bus->num_reset_gpios; i++) {
--              if (bus->reset_gpiod[i])
--                      gpiod_set_value_cansleep(bus->reset_gpiod[i], 1);
--      }
-+      if (bus->reset_gpiod)
-+              gpiod_set_value_cansleep(bus->reset_gpiod, 1);
- 
-       device_del(&bus->dev);
-       return err;
-@@ -363,10 +350,8 @@ void mdiobus_unregister(struct mii_bus *
-       }
- 
-       /* Put PHYs in RESET to save power */
--      for (i = 0; i < bus->num_reset_gpios; i++) {
--              if (bus->reset_gpiod[i])
--                      gpiod_set_value_cansleep(bus->reset_gpiod[i], 1);
--      }
-+      if (bus->reset_gpiod)
-+              gpiod_set_value_cansleep(bus->reset_gpiod, 1);
- 
-       device_del(&bus->dev);
- }
---- a/drivers/of/of_mdio.c
-+++ b/drivers/of/of_mdio.c
-@@ -145,7 +145,6 @@ int of_mdiobus_register(struct mii_bus *
-       /* Get bus level PHY reset GPIO details */
-       mdio->reset_delay_us = DEFAULT_GPIO_RESET_DELAY;
-       of_property_read_u32(np, "reset-delay-us", &mdio->reset_delay_us);
--      mdio->num_reset_gpios = of_gpio_named_count(np, "reset-gpios");
- 
-       /* Register the MDIO bus */
-       rc = mdiobus_register(mdio);
---- a/include/linux/phy.h
-+++ b/include/linux/phy.h
-@@ -190,10 +190,8 @@ struct mii_bus {
- 
-       /* GPIO reset pulse width in microseconds */
-       int reset_delay_us;
--      /* Number of reset GPIOs */
--      int num_reset_gpios;
--      /* Array of RESET GPIO descriptors */
--      struct gpio_desc **reset_gpiod;
-+      /* RESET GPIO descriptor pointer */
-+      struct gpio_desc *reset_gpiod;
- };
- #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
-