+++ /dev/null
-From 1d20d3bd16eac561e14513c9e6cac543fab5a3f0 Mon Sep 17 00:00:00 2001
-From: Yuichi Kusakabe <yuichi.kusakabe@jp.fujitsu.com>
-Date: Thu, 18 May 2017 17:42:33 +0900
-Subject: [PATCH 10/15] Add rcar-eth hibernation code
-
-Signed-off-by: Yuichi Kusakabe <yuichi.kusakabe@jp.fujitsu.com>
----
- drivers/net/ethernet/renesas/sh_eth.c | 57 +++++++++++++++++++++++++++++++++--
- drivers/net/phy/phy_device.c | 41 +++++++++++++++++++++++++
- 2 files changed, 95 insertions(+), 3 deletions(-)
-
-diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
-index 991fa1e..7e91b26 100644
---- a/drivers/net/ethernet/renesas/sh_eth.c
-+++ b/drivers/net/ethernet/renesas/sh_eth.c
-@@ -33,6 +33,7 @@
- #include <linux/of.h>
- #include <linux/of_device.h>
- #include <linux/of_irq.h>
-+#include <linux/of_gpio.h>
- #include <linux/of_net.h>
- #include <linux/phy.h>
- #include <linux/cache.h>
-@@ -999,6 +1000,7 @@ static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp)
- struct bb_info {
- void (*set_gate)(void *addr);
- struct mdiobb_ctrl ctrl;
-+ struct sh_eth_private *mdp;
- void *addr;
- u32 mmd_msk;/* MMD */
- u32 mdo_msk;
-@@ -1029,6 +1031,8 @@ static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit)
- {
- struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
-
-+ pm_runtime_get_sync(&bitbang->mdp->pdev->dev);
-+
- if (bitbang->set_gate)
- bitbang->set_gate(bitbang->addr);
-
-@@ -1036,6 +1040,8 @@ static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit)
- bb_set(bitbang->addr, bitbang->mmd_msk);
- else
- bb_clr(bitbang->addr, bitbang->mmd_msk);
-+
-+ pm_runtime_put_sync(&bitbang->mdp->pdev->dev);
- }
-
- /* Set bit data*/
-@@ -1043,6 +1049,8 @@ static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit)
- {
- struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
-
-+ pm_runtime_get_sync(&bitbang->mdp->pdev->dev);
-+
- if (bitbang->set_gate)
- bitbang->set_gate(bitbang->addr);
-
-@@ -1050,17 +1058,26 @@ static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit)
- bb_set(bitbang->addr, bitbang->mdo_msk);
- else
- bb_clr(bitbang->addr, bitbang->mdo_msk);
-+
-+ pm_runtime_put_sync(&bitbang->mdp->pdev->dev);
- }
-
- /* Get bit data*/
- static int sh_get_mdio(struct mdiobb_ctrl *ctrl)
- {
- struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
-+ unsigned int ret;
-+
-+ pm_runtime_get_sync(&bitbang->mdp->pdev->dev);
-
- if (bitbang->set_gate)
- bitbang->set_gate(bitbang->addr);
-
-- return bb_read(bitbang->addr, bitbang->mdi_msk);
-+ ret = bb_read(bitbang->addr, bitbang->mdi_msk);
-+
-+ pm_runtime_put_sync(&bitbang->mdp->pdev->dev);
-+
-+ return ret;
- }
-
- /* MDC pin control */
-@@ -1068,6 +1085,8 @@ static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit)
- {
- struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
-
-+ pm_runtime_get_sync(&bitbang->mdp->pdev->dev);
-+
- if (bitbang->set_gate)
- bitbang->set_gate(bitbang->addr);
-
-@@ -1075,6 +1094,8 @@ static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit)
- bb_set(bitbang->addr, bitbang->mdc_msk);
- else
- bb_clr(bitbang->addr, bitbang->mdc_msk);
-+
-+ pm_runtime_put_sync(&bitbang->mdp->pdev->dev);
- }
-
- /* mdio bus control struct */
-@@ -2664,6 +2685,7 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
- bitbang->mdo_msk = PIR_MDO;
- bitbang->mmd_msk = PIR_MMD;
- bitbang->mdc_msk = PIR_MDC;
-+ bitbang->mdp = mdp;
- bitbang->ctrl.ops = &bb_ops;
-
- /* MII controller setting */
-@@ -3002,9 +3024,38 @@ static int sh_eth_runtime_nop(struct device *dev)
- return 0;
- }
-
-+static int sh_eth_suspend(struct device *dev)
-+{
-+ int ret = 0;
-+ struct net_device *ndev = dev_get_drvdata(dev);
-+
-+ if (netif_running(ndev)) {
-+ netif_device_detach(ndev);
-+ ret = sh_eth_close(ndev);
-+ }
-+
-+ return ret;
-+}
-+
-+static int sh_eth_resume(struct device *dev)
-+{
-+ int ret = 0;
-+ struct net_device *ndev = dev_get_drvdata(dev);
-+
-+ if (netif_running(ndev)) {
-+ ret = sh_eth_open(ndev);
-+ if (ret < 0)
-+ goto err;
-+ netif_device_attach(ndev);
-+ }
-+
-+err:
-+ return ret;
-+}
-+
- static const struct dev_pm_ops sh_eth_dev_pm_ops = {
-- .runtime_suspend = sh_eth_runtime_nop,
-- .runtime_resume = sh_eth_runtime_nop,
-+ SET_RUNTIME_PM_OPS(sh_eth_runtime_nop, sh_eth_runtime_nop, NULL)
-+ SET_SYSTEM_SLEEP_PM_OPS(sh_eth_suspend, sh_eth_resume)
- };
- #define SH_ETH_PM_OPS (&sh_eth_dev_pm_ops)
- #else
-diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
-index 3657b4a..3ceb4f9 100644
---- a/drivers/net/phy/phy_device.c
-+++ b/drivers/net/phy/phy_device.c
-@@ -510,6 +510,32 @@ int phy_init_hw(struct phy_device *phydev)
- return phydev->drv->config_init(phydev);
- }
-
-+int phy_suspend(struct phy_device *phydev)
-+{
-+ struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver);
-+ struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
-+
-+ /* If the device has WOL enabled, we cannot suspend the PHY */
-+ phy_ethtool_get_wol(phydev, &wol);
-+ if (wol.wolopts)
-+ return -EBUSY;
-+
-+ if (phydrv->suspend)
-+ return phydrv->suspend(phydev);
-+ return 0;
-+}
-+EXPORT_SYMBOL(phy_suspend);
-+
-+int phy_resume(struct phy_device *phydev)
-+{
-+ struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver);
-+
-+ if (phydrv->resume)
-+ return phydrv->resume(phydev);
-+ return 0;
-+}
-+EXPORT_SYMBOL(phy_resume);
-+
- /**
- * phy_attach_direct - attach a network device to a given PHY device pointer
- * @dev: network device to attach
-@@ -528,6 +554,7 @@ static int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
- u32 flags, phy_interface_t interface)
- {
- struct device *d = &phydev->dev;
-+ struct module *bus_module;
- int err;
-
- /* Assume that if there is no driver, that it doesn't
-@@ -553,6 +580,14 @@ static int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
- return -EBUSY;
- }
-
-+ /* Increment the bus module reference count */
-+ bus_module = phydev->bus->dev.driver ?
-+ phydev->bus->dev.driver->owner : NULL;
-+ if (!try_module_get(bus_module)) {
-+ dev_err(&dev->dev, "failed to get the bus module\n");
-+ return -EIO;
-+ }
-+
- phydev->attached_dev = dev;
- dev->phydev = phydev;
-
-@@ -568,6 +603,8 @@ static int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
- err = phy_init_hw(phydev);
- if (err)
- phy_detach(phydev);
-+ else
-+ phy_resume(phydev);
-
- return err;
- }
-@@ -612,8 +649,12 @@ EXPORT_SYMBOL(phy_attach);
- */
- void phy_detach(struct phy_device *phydev)
- {
-+ if (phydev->bus->dev.driver)
-+ module_put(phydev->bus->dev.driver->owner);
-+
- phydev->attached_dev->phydev = NULL;
- phydev->attached_dev = NULL;
-+ phy_suspend(phydev);
-
- /* If the device had no specific driver before (i.e. - it
- * was using the generic driver), we unbind the device
---
-1.8.3.1
-
Code Review / AGL / meta-agl.git / blobdiff