diff mbox series

[net-next,17/19] net: phy: add genphy_handle_interrupt_no_ack()

Message ID 20201029100741.462818-18-ciorneiioana@gmail.com
State Deferred
Delegated to: David Miller
Headers show
Series net: phy: add support for shared interrupts (part 1) | expand

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Context Check Description
jkicinski/cover_letter success Link
jkicinski/fixes_present success Link
jkicinski/patch_count fail Series longer than 15 patches
jkicinski/tree_selection success Clearly marked for net-next
jkicinski/subject_prefix success Link
jkicinski/source_inline success Was 0 now: 0
jkicinski/verify_signedoff success Link
jkicinski/module_param success Was 0 now: 0
jkicinski/build_32bit fail Errors and warnings before: 671 this patch: 671
jkicinski/kdoc success Errors and warnings before: 0 this patch: 0
jkicinski/verify_fixes success Link
jkicinski/checkpatch fail Link
jkicinski/build_allmodconfig_warn success Errors and warnings before: 594 this patch: 594
jkicinski/header_inline success Link
jkicinski/stable success Stable not CCed

Commit Message

Ioana Ciornei Oct. 29, 2020, 10:07 a.m. UTC 
From: Ioana Ciornei <ioana.ciornei@nxp.com>

It seems there are cases where the interrupts are handled by another
entity (ie an IRQ controller embedded inside the PHY) and do not need
any other interraction from phylib. For this kind of PHYs, like the
RTL8366RB, add the genphy_handle_interrupt_no_ack() function which just
triggers the link state machine.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
---
 drivers/net/phy/phy_device.c | 13 +++++++++++++
 include/linux/phy.h          |  1 +
 2 files changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index f54f483d7fd6..e13a46c25437 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2463,6 +2463,19 @@  int genphy_soft_reset(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_soft_reset);
 
+irqreturn_t genphy_handle_interrupt_no_ack(struct phy_device *phydev)
+{
+	/* It seems there are cases where the interrupts are handled by another
+	 * entity (ie an IRQ controller embedded inside the PHY) and do not
+	 * need any other interraction from phylib. In this case, just trigger
+	 * the state machine directly.
+	 */
+	phy_trigger_machine(phydev);
+
+	return 0;
+}
+EXPORT_SYMBOL(genphy_handle_interrupt_no_ack);
+
 /**
  * genphy_read_abilities - read PHY abilities from Clause 22 registers
  * @phydev: target phy_device struct
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 566b39f6cd64..4f158d6352ae 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1510,6 +1510,7 @@  int genphy_suspend(struct phy_device *phydev);
 int genphy_resume(struct phy_device *phydev);
 int genphy_loopback(struct phy_device *phydev, bool enable);
 int genphy_soft_reset(struct phy_device *phydev);
+irqreturn_t genphy_handle_interrupt_no_ack(struct phy_device *phydev);
 
 static inline int genphy_config_aneg(struct phy_device *phydev)
 {