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net: phy: realtek: implement generic .handle_interrupt() callback

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In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.

Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Willy Liu <willy.liu@realtek.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ioana Ciornei 2020-11-01 14:51:13 +02:00 committed by Jakub Kicinski
parent 87de1f058a
commit 0382916398
1 changed files with 72 additions and 0 deletions
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72
drivers/net/phy/realtek.c
View file

@ -41,6 +41,12 @@
#define RTL8211E_RX_DELAY BIT(11)
#define RTL8201F_ISR 0x1e
#define RTL8201F_ISR_ANERR BIT(15)
#define RTL8201F_ISR_DUPLEX BIT(13)
#define RTL8201F_ISR_LINK BIT(11)
#define RTL8201F_ISR_MASK (RTL8201F_ISR_ANERR | \
RTL8201F_ISR_DUPLEX | \
RTL8201F_ISR_LINK)
#define RTL8201F_IER 0x13
#define RTL8366RB_POWER_SAVE 0x15
@ -149,6 +155,66 @@ static int rtl8211f_config_intr(struct phy_device *phydev)
return phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
}
static irqreturn_t rtl8201_handle_interrupt(struct phy_device *phydev)
{
int irq_status;
irq_status = phy_read(phydev, RTL8201F_ISR);
if (irq_status < 0) {
phy_error(phydev);
return IRQ_NONE;
}
if (!(irq_status & RTL8201F_ISR_MASK))
return IRQ_NONE;
phy_trigger_machine(phydev);
return IRQ_HANDLED;
}
static irqreturn_t rtl821x_handle_interrupt(struct phy_device *phydev)
{
int irq_status, irq_enabled;
irq_status = phy_read(phydev, RTL821x_INSR);
if (irq_status < 0) {
phy_error(phydev);
return IRQ_NONE;
}
irq_enabled = phy_read(phydev, RTL821x_INER);
if (irq_enabled < 0) {
phy_error(phydev);
return IRQ_NONE;
}
if (!(irq_status & irq_enabled))
return IRQ_NONE;
phy_trigger_machine(phydev);
return IRQ_HANDLED;
}
static irqreturn_t rtl8211f_handle_interrupt(struct phy_device *phydev)
{
int irq_status;
irq_status = phy_read_paged(phydev, 0xa43, RTL8211F_INSR);
if (irq_status < 0) {
phy_error(phydev);
return IRQ_NONE;
}
if (!(irq_status & RTL8211F_INER_LINK_STATUS))
return IRQ_NONE;
phy_trigger_machine(phydev);
return IRQ_HANDLED;
}
static int rtl8211_config_aneg(struct phy_device *phydev)
{
int ret;
@ -556,6 +622,7 @@ static struct phy_driver realtek_drvs[] = {
.name = "RTL8201F Fast Ethernet",
.ack_interrupt = &rtl8201_ack_interrupt,
.config_intr = &rtl8201_config_intr,
.handle_interrupt = rtl8201_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_page = rtl821x_read_page,
@ -582,6 +649,7 @@ static struct phy_driver realtek_drvs[] = {
.name = "RTL8211B Gigabit Ethernet",
.ack_interrupt = &rtl821x_ack_interrupt,
.config_intr = &rtl8211b_config_intr,
.handle_interrupt = rtl821x_handle_interrupt,
.read_mmd = &genphy_read_mmd_unsupported,
.write_mmd = &genphy_write_mmd_unsupported,
.suspend = rtl8211b_suspend,
@ -601,6 +669,7 @@ static struct phy_driver realtek_drvs[] = {
.name = "RTL8211DN Gigabit Ethernet",
.ack_interrupt = rtl821x_ack_interrupt,
.config_intr = rtl8211e_config_intr,
.handle_interrupt = rtl821x_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_page = rtl821x_read_page,
@ -611,6 +680,7 @@ static struct phy_driver realtek_drvs[] = {
.config_init = &rtl8211e_config_init,
.ack_interrupt = &rtl821x_ack_interrupt,
.config_intr = &rtl8211e_config_intr,
.handle_interrupt = rtl821x_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_page = rtl821x_read_page,
@ -621,6 +691,7 @@ static struct phy_driver realtek_drvs[] = {
.config_init = &rtl8211f_config_init,
.ack_interrupt = &rtl8211f_ack_interrupt,
.config_intr = &rtl8211f_config_intr,
.handle_interrupt = rtl8211f_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_page = rtl821x_read_page,
@ -710,6 +781,7 @@ static struct phy_driver realtek_drvs[] = {
*/
.ack_interrupt = genphy_no_ack_interrupt,
.config_intr = genphy_no_config_intr,
.handle_interrupt = genphy_handle_interrupt_no_ack,
.suspend = genphy_suspend,
.resume = genphy_resume,
},