diff options
Diffstat (limited to 'target/linux/generic/backport-4.19/709-v5.3-net-phylink-support-for-link-gpio-interrupt.patch')
| -rw-r--r-- | target/linux/generic/backport-4.19/709-v5.3-net-phylink-support-for-link-gpio-interrupt.patch | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/target/linux/generic/backport-4.19/709-v5.3-net-phylink-support-for-link-gpio-interrupt.patch b/target/linux/generic/backport-4.19/709-v5.3-net-phylink-support-for-link-gpio-interrupt.patch deleted file mode 100644 index 84a1c853d1..0000000000 --- a/target/linux/generic/backport-4.19/709-v5.3-net-phylink-support-for-link-gpio-interrupt.patch +++ /dev/null @@ -1,90 +0,0 @@ -From cba0aba37d2228556e0d1f776d403435868cdbfa Mon Sep 17 00:00:00 2001 -From: Russell King <rmk+kernel@armlinux.org.uk> -Date: Tue, 28 May 2019 10:57:23 +0100 -Subject: [PATCH 607/660] net: phylink: support for link gpio interrupt - -Add support for using GPIO interrupts with a fixed-link GPIO rather than -polling the GPIO every second and invoking the phylink resolution. This -avoids unnecessary calls to mac_config(). - -Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> -Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> -Signed-off-by: David S. Miller <davem@davemloft.net> -Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> ---- - drivers/net/phy/phylink.c | 36 ++++++++++++++++++++++++++++++++---- - 1 file changed, 32 insertions(+), 4 deletions(-) - ---- a/drivers/net/phy/phylink.c -+++ b/drivers/net/phy/phylink.c -@@ -59,6 +59,7 @@ struct phylink { - phy_interface_t cur_interface; - - struct gpio_desc *link_gpio; -+ unsigned int link_irq; - struct timer_list link_poll; - void (*get_fixed_state)(struct net_device *dev, - struct phylink_link_state *s); -@@ -645,7 +646,7 @@ void phylink_destroy(struct phylink *pl) - { - if (pl->sfp_bus) - sfp_unregister_upstream(pl->sfp_bus); -- if (!IS_ERR_OR_NULL(pl->link_gpio)) -+ if (pl->link_gpio) - gpiod_put(pl->link_gpio); - - cancel_work_sync(&pl->resolve); -@@ -912,6 +913,15 @@ void phylink_mac_change(struct phylink * - } - EXPORT_SYMBOL_GPL(phylink_mac_change); - -+static irqreturn_t phylink_link_handler(int irq, void *data) -+{ -+ struct phylink *pl = data; -+ -+ phylink_run_resolve(pl); -+ -+ return IRQ_HANDLED; -+} -+ - /** - * phylink_start() - start a phylink instance - * @pl: a pointer to a &struct phylink returned from phylink_create() -@@ -947,7 +957,22 @@ void phylink_start(struct phylink *pl) - clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state); - phylink_run_resolve(pl); - -- if (pl->link_an_mode == MLO_AN_FIXED && !IS_ERR(pl->link_gpio)) -+ if (pl->link_an_mode == MLO_AN_FIXED && pl->link_gpio) { -+ int irq = gpiod_to_irq(pl->link_gpio); -+ -+ if (irq > 0) { -+ if (!request_irq(irq, phylink_link_handler, -+ IRQF_TRIGGER_RISING | -+ IRQF_TRIGGER_FALLING, -+ "netdev link", pl)) -+ pl->link_irq = irq; -+ else -+ irq = 0; -+ } -+ if (irq <= 0) -+ mod_timer(&pl->link_poll, jiffies + HZ); -+ } -+ if (pl->link_an_mode == MLO_AN_FIXED && pl->get_fixed_state) - mod_timer(&pl->link_poll, jiffies + HZ); - if (pl->sfp_bus) - sfp_upstream_start(pl->sfp_bus); -@@ -973,8 +998,11 @@ void phylink_stop(struct phylink *pl) - phy_stop(pl->phydev); - if (pl->sfp_bus) - sfp_upstream_stop(pl->sfp_bus); -- if (pl->link_an_mode == MLO_AN_FIXED && !IS_ERR(pl->link_gpio)) -- del_timer_sync(&pl->link_poll); -+ del_timer_sync(&pl->link_poll); -+ if (pl->link_irq) { -+ free_irq(pl->link_irq, pl); -+ pl->link_irq = 0; -+ } - - phylink_run_resolve_and_disable(pl, PHYLINK_DISABLE_STOPPED); - } |