From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandru Ardelean Subject: [PATCH v2 04/15] net: phy: adin: add support for interrupts Date: Thu, 8 Aug 2019 15:30:15 +0300 Message-ID: <20190808123026.17382-5-alexandru.ardelean@analog.com> References: <20190808123026.17382-1-alexandru.ardelean@analog.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190808123026.17382-1-alexandru.ardelean@analog.com> Sender: netdev-owner@vger.kernel.org To: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: davem@davemloft.net, robh+dt@kernel.org, mark.rutland@arm.com, f.fainelli@gmail.com, hkallweit1@gmail.com, andrew@lunn.ch, Alexandru Ardelean List-Id: devicetree@vger.kernel.org This change adds support for enabling PHY interrupts that can be used by the PHY framework to get signal for link/speed/auto-negotiation changes. Signed-off-by: Alexandru Ardelean --- drivers/net/phy/adin.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index 45490fbe273b..69000fb16704 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -14,11 +14,45 @@ #define PHY_ID_ADIN1200 0x0283bc20 #define PHY_ID_ADIN1300 0x0283bc30 +#define ADIN1300_INT_MASK_REG 0x0018 +#define ADIN1300_INT_MDIO_SYNC_EN BIT(9) +#define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8) +#define ADIN1300_INT_ANEG_PAGE_RX_EN BIT(6) +#define ADIN1300_INT_IDLE_ERR_CNT_EN BIT(5) +#define ADIN1300_INT_MAC_FIFO_OU_EN BIT(4) +#define ADIN1300_INT_RX_STAT_CHNG_EN BIT(3) +#define ADIN1300_INT_LINK_STAT_CHNG_EN BIT(2) +#define ADIN1300_INT_SPEED_CHNG_EN BIT(1) +#define ADIN1300_INT_HW_IRQ_EN BIT(0) +#define ADIN1300_INT_MASK_EN \ + (ADIN1300_INT_ANEG_STAT_CHNG_EN | ADIN1300_INT_ANEG_PAGE_RX_EN | \ + ADIN1300_INT_LINK_STAT_CHNG_EN | ADIN1300_INT_SPEED_CHNG_EN | \ + ADIN1300_INT_HW_IRQ_EN) +#define ADIN1300_INT_STATUS_REG 0x0019 + static int adin_config_init(struct phy_device *phydev) { return genphy_config_init(phydev); } +static int adin_phy_ack_intr(struct phy_device *phydev) +{ + /* Clear pending interrupts */ + int rc = phy_read(phydev, ADIN1300_INT_STATUS_REG); + + return rc < 0 ? rc : 0; +} + +static int adin_phy_config_intr(struct phy_device *phydev) +{ + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) + return phy_set_bits(phydev, ADIN1300_INT_MASK_REG, + ADIN1300_INT_MASK_EN); + + return phy_clear_bits(phydev, ADIN1300_INT_MASK_REG, + ADIN1300_INT_MASK_EN); +} + static struct phy_driver adin_driver[] = { { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200), @@ -27,6 +61,8 @@ static struct phy_driver adin_driver[] = { .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, .get_features = genphy_read_abilities, + .ack_interrupt = adin_phy_ack_intr, + .config_intr = adin_phy_config_intr, .resume = genphy_resume, .suspend = genphy_suspend, }, @@ -37,6 +73,8 @@ static struct phy_driver adin_driver[] = { .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, .get_features = genphy_read_abilities, + .ack_interrupt = adin_phy_ack_intr, + .config_intr = adin_phy_config_intr, .resume = genphy_resume, .suspend = genphy_suspend, }, -- 2.20.1