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authorSang-Heon Jeon <ekffu200098@gmail.com>2026-08-24 01:18:14 +0900
committerJulia Lawall <Julia.Lawall@inria.fr>2026-08-23 22:12:11 +0200
commit2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch)
treedcc4da1d99f17541c5590ac63c77da4bf372a4ab /drivers/net/phy/amd.c
downloadlinux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz
linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.zip
coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'drivers/net/phy/amd.c')
-rw-r--r--drivers/net/phy/amd.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/net/phy/amd.c b/drivers/net/phy/amd.c
new file mode 100644
index 000000000..75b5fe655
--- /dev/null
+++ b/drivers/net/phy/amd.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for AMD am79c PHYs
+ *
+ * Author: Heiko Schocher <hs@denx.de>
+ *
+ * Copyright (c) 2011 DENX Software Engineering GmbH
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+
+#define PHY_ID_AC101L 0x00225520
+#define PHY_ID_AM79C874 0x0022561b
+
+#define MII_AM79C_IR 17 /* Interrupt Status/Control Register */
+#define MII_AM79C_IR_EN_LINK 0x0400 /* IR enable Linkstate */
+#define MII_AM79C_IR_EN_ANEG 0x0100 /* IR enable Aneg Complete */
+#define MII_AM79C_IR_IMASK_INIT (MII_AM79C_IR_EN_LINK | MII_AM79C_IR_EN_ANEG)
+
+#define MII_AM79C_IR_LINK_DOWN BIT(2)
+#define MII_AM79C_IR_ANEG_DONE BIT(0)
+#define MII_AM79C_IR_IMASK_STAT (MII_AM79C_IR_LINK_DOWN | MII_AM79C_IR_ANEG_DONE)
+
+MODULE_DESCRIPTION("AMD PHY driver");
+MODULE_AUTHOR("Heiko Schocher <hs@denx.de>");
+MODULE_LICENSE("GPL");
+
+static int am79c_ack_interrupt(struct phy_device *phydev)
+{
+ int err;
+
+ err = phy_read(phydev, MII_BMSR);
+ if (err < 0)
+ return err;
+
+ err = phy_read(phydev, MII_AM79C_IR);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int am79c_config_init(struct phy_device *phydev)
+{
+ return 0;
+}
+
+static int am79c_config_intr(struct phy_device *phydev)
+{
+ int err;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+ err = am79c_ack_interrupt(phydev);
+ if (err)
+ return err;
+
+ err = phy_write(phydev, MII_AM79C_IR, MII_AM79C_IR_IMASK_INIT);
+ } else {
+ err = phy_write(phydev, MII_AM79C_IR, 0);
+ if (err)
+ return err;
+
+ err = am79c_ack_interrupt(phydev);
+ }
+
+ return err;
+}
+
+static irqreturn_t am79c_handle_interrupt(struct phy_device *phydev)
+{
+ int irq_status;
+
+ irq_status = phy_read(phydev, MII_AM79C_IR);
+ if (irq_status < 0) {
+ phy_error(phydev);
+ return IRQ_NONE;
+ }
+
+ if (!(irq_status & MII_AM79C_IR_IMASK_STAT))
+ return IRQ_NONE;
+
+ phy_trigger_machine(phydev);
+
+ return IRQ_HANDLED;
+}
+
+static struct phy_driver am79c_drivers[] = {
+ {
+ .phy_id = PHY_ID_AM79C874,
+ .name = "AM79C874",
+ .phy_id_mask = 0xfffffff0,
+ /* PHY_BASIC_FEATURES */
+ .config_init = am79c_config_init,
+ .config_intr = am79c_config_intr,
+ .handle_interrupt = am79c_handle_interrupt,
+ },
+ {
+ .phy_id = PHY_ID_AC101L,
+ .name = "AC101L",
+ .phy_id_mask = 0xfffffff0,
+ /* PHY_BASIC_FEATURES */
+ .config_init = am79c_config_init,
+ .config_intr = am79c_config_intr,
+ .handle_interrupt = am79c_handle_interrupt,
+ },
+};
+
+module_phy_driver(am79c_drivers);
+
+static const struct mdio_device_id __maybe_unused amd_tbl[] = {
+ { PHY_ID_AC101L, 0xfffffff0 },
+ { PHY_ID_AM79C874, 0xfffffff0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(mdio, amd_tbl);