mvebu: remove linux 4.4 support

[openwrt/staging/lynxis/omap.git] / target / linux / mvebu / patches-4.4 / 122-phy-separate-swphy-state-validation-from-register-ge.patch

diff --git a/target/linux/mvebu/patches-4.4/122-phy-separate-swphy-state-validation-from-register-ge.patch b/target/linux/mvebu/patches-4.4/122-phy-separate-swphy-state-validation-from-register-ge.patch
deleted file mode 100644 (file)
index 4b332cc..0000000
--- a/target/linux/mvebu/patches-4.4/122-phy-separate-swphy-state-validation-from-register-ge.patch
+++ /dev/null
@@ -1,138 +0,0 @@
-From e07630ad84c7dc145863f079f108154fb7c975e7 Mon Sep 17 00:00:00 2001
-From: Russell King <rmk+kernel@arm.linux.org.uk>
-Date: Sun, 20 Sep 2015 11:12:15 +0100
-Subject: [PATCH 711/744] phy: separate swphy state validation from register
- generation
-
-Separate out the generation of MII registers from the state validation.
-This allows us to simplify the error handing in fixed_phy() by allowing
-earlier error detection.
-
-Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
----
- drivers/net/phy/fixed_phy.c | 15 +++++++--------
- drivers/net/phy/swphy.c     | 33 ++++++++++++++++++++++++++-------
- drivers/net/phy/swphy.h     |  3 ++-
- 3 files changed, 35 insertions(+), 16 deletions(-)
-
---- a/drivers/net/phy/fixed_phy.c
-+++ b/drivers/net/phy/fixed_phy.c
-@@ -49,12 +49,12 @@ static struct fixed_mdio_bus platform_fm
-       .phys = LIST_HEAD_INIT(platform_fmb.phys),
- };
- 
--static int fixed_phy_update_regs(struct fixed_phy *fp)
-+static void fixed_phy_update_regs(struct fixed_phy *fp)
- {
-       if (gpio_is_valid(fp->link_gpio))
-               fp->status.link = !!gpio_get_value_cansleep(fp->link_gpio);
- 
--      return swphy_update_regs(fp->regs, &fp->status);
-+      swphy_update_regs(fp->regs, &fp->status);
- }
- 
- static int fixed_mdio_read(struct mii_bus *bus, int phy_addr, int reg_num)
-@@ -161,6 +161,10 @@ int fixed_phy_add(unsigned int irq, int
-       struct fixed_mdio_bus *fmb = &platform_fmb;
-       struct fixed_phy *fp;
- 
-+      ret = swphy_validate_state(status);
-+      if (ret < 0)
-+              return ret;
-+
-       fp = kzalloc(sizeof(*fp), GFP_KERNEL);
-       if (!fp)
-               return -ENOMEM;
-@@ -180,17 +184,12 @@ int fixed_phy_add(unsigned int irq, int
-                       goto err_regs;
-       }
- 
--      ret = fixed_phy_update_regs(fp);
--      if (ret)
--              goto err_gpio;
-+      fixed_phy_update_regs(fp);
- 
-       list_add_tail(&fp->node, &fmb->phys);
- 
-       return 0;
- 
--err_gpio:
--      if (gpio_is_valid(fp->link_gpio))
--              gpio_free(fp->link_gpio);
- err_regs:
-       kfree(fp);
-       return ret;
---- a/drivers/net/phy/swphy.c
-+++ b/drivers/net/phy/swphy.c
-@@ -87,6 +87,29 @@ static int swphy_decode_speed(int speed)
- }
- 
- /**
-+ * swphy_validate_state - validate the software phy status
-+ * @state: software phy status
-+ *
-+ * This checks that we can represent the state stored in @state can be
-+ * represented in the emulated MII registers.  Returns 0 if it can,
-+ * otherwise returns -EINVAL.
-+ */
-+int swphy_validate_state(const struct fixed_phy_status *state)
-+{
-+      int err;
-+
-+      if (state->link) {
-+              err = swphy_decode_speed(state->speed);
-+              if (err < 0) {
-+                      pr_warn("swphy: unknown speed\n");
-+                      return -EINVAL;
-+              }
-+      }
-+      return 0;
-+}
-+EXPORT_SYMBOL_GPL(swphy_validate_state);
-+
-+/**
-  * swphy_update_regs - update MII register array with fixed phy state
-  * @regs: array of 32 registers to update
-  * @state: fixed phy status
-@@ -94,7 +117,7 @@ static int swphy_decode_speed(int speed)
-  * Update the array of MII registers with the fixed phy link, speed,
-  * duplex and pause mode settings.
-  */
--int swphy_update_regs(u16 *regs, const struct fixed_phy_status *state)
-+void swphy_update_regs(u16 *regs, const struct fixed_phy_status *state)
- {
-       int speed_index, duplex_index;
-       u16 bmsr = BMSR_ANEGCAPABLE;
-@@ -103,10 +126,8 @@ int swphy_update_regs(u16 *regs, const s
-       u16 lpa = 0;
- 
-       speed_index = swphy_decode_speed(state->speed);
--      if (speed_index < 0) {
--              pr_warn("swphy: unknown speed\n");
--              return -EINVAL;
--      }
-+      if (WARN_ON(speed_index < 0))
-+              return;
- 
-       duplex_index = state->duplex ? SWMII_DUPLEX_FULL : SWMII_DUPLEX_HALF;
- 
-@@ -133,7 +154,5 @@ int swphy_update_regs(u16 *regs, const s
-       regs[MII_BMCR] = bmcr;
-       regs[MII_LPA] = lpa;
-       regs[MII_STAT1000] = lpagb;
--
--      return 0;
- }
- EXPORT_SYMBOL_GPL(swphy_update_regs);
---- a/drivers/net/phy/swphy.h
-+++ b/drivers/net/phy/swphy.h
-@@ -3,6 +3,7 @@
- 
- struct fixed_phy_status;
- 
--int swphy_update_regs(u16 *regs, const struct fixed_phy_status *state);
-+int swphy_validate_state(const struct fixed_phy_status *state);
-+void swphy_update_regs(u16 *regs, const struct fixed_phy_status *state);
- 
- #endif