kernel/linux.git/drivers/phy/phy-core.c, branch v3.18.62

phy: core: fix wrong err handle for phy_power_on

2016-03-04T15:18:39+00:00

[ Upstream commit b82fcabe212a11698fd4b3e604d2f81d929d22f6 ] If phy_pm_runtime_get_sync failed but we already enable regulator, current code return directly without doing regulator_disable. This patch fix this problem and cleanup err handle of phy_power_on to be more readable. Fixes: 3be88125d85d ("phy: core: Support regulator ...") Cc: # v3.18+ Cc: Roger Quadros Cc: Axel Lin Signed-off-by: Shawn Lin Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sasha Levin

phy: core: Fixup return value of phy_exit when !pm_runtime_enabled

2016-03-04T15:18:39+00:00

[ Upstream commit 736b67a32062240592aad49033859f9712dd18ca ] When phy_pm_runtime_get_sync() returns -ENOTSUPP, phy_exit() also returns -ENOTSUPP if !phy->ops->exit. Fix it. Also move the code to override ret close to the code we got ret. I think it is less error prone this way. Signed-off-by: Axel Lin Acked-by: Roger Quadros Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sasha Levin

phy: Find the right match in devm_phy_destroy()

2015-04-17T00:11:41+00:00

[ Upstream commit 2f1bce487cd0a02623cff3d877940f9a2026341c ] devm_phy_create() stores the pointer to the new PHY at the address returned by devres_alloc(). The res parameter passed to devm_phy_match() is therefore the location where the pointer to the PHY is stored, hence it needs to be dereferenced before comparing to the match data in order to find the correct match. Cc: # v3.13+ Signed-off-by: Thierry Reding Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sasha Levin

phy: core: Let node ptr of PHY point to PHY and not of PHY provider

2014-07-22T07:16:11+00:00

In case of multi-phy PHY providers, each PHY should be modeled as a sub node of the PHY provider. Then each PHY will have a different node pointer (node pointer of sub node) than that of PHY provider. Added this provision in the PHY core. Also fixed all drivers to use the updated API. Signed-off-by: Kishon Vijay Abraham I Acked-by: Lee Jones

phy: core: Fix of_phy_provider_lookup to return PHY provider for sub node

2014-07-22T07:16:11+00:00

Fixed of_phy_provider_lookup to return 'phy_provider' if _of_phy_get passes the node pointer of the sub-node of phy provider node. This is needed when phy provider implements multiple PHYs and each PHY is modelled as the sub-node of PHY provider device node. Signed-off-by: Kishon Vijay Abraham I Acked-by: Lee Jones

phy: core: Support regulator supply for PHY power

2014-07-22T07:16:10+00:00

Some PHYs can be powered by an external power regulator. e.g. USB_HS PHY on DRA7 SoC. Make the PHY core support a power regulator. Signed-off-by: Roger Quadros Signed-off-by: Kishon Vijay Abraham I

phy: core: Fix error path in phy_create()

2014-07-12T01:23:49+00:00

Prevent resources from being freed twice in case device_add() call fails within phy_create(). Also use ida_simple_remove() instead of ida_remove() as we had used ida_simple_get() to allocate the ida. Cc: 3.13+ # 3.13+ Signed-off-by: Roger Quadros Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Greg Kroah-Hartman

phy: fix kernel oops in phy_lookup()

2014-04-24T19:53:38+00:00

The kernel oopses in phy_lookup() due to 'phy->init_data' being NULL if we register PHYs from a device tree probing driver and then call phy_get() on a device that has no representation in the device tree (e.g. a PCI device). Checking the pointer before dereferening it and skipping an interation if it's NULL prevents this kernel oops. Signed-off-by: Sergei Shtylyov Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Greg Kroah-Hartman

phy: core: Add devm_of_phy_get to phy-core

2014-03-08T07:09:43+00:00

Adding devm_of_phy_get will allow to get phys by supplying a pointer to the struct device_node instead of struct device. Signed-off-by: Kamil Debski Reviewed-by: Tomasz Figa Signed-off-by: Kishon Vijay Abraham I

phy: core: Add an exported of_phy_get function

2014-03-08T07:09:42+00:00

Previously the of_phy_get function took a struct device * and was declared static. It was impossible to call it from another driver and thus it was impossible to get phy defined for a given node. The old function was renamed to _of_phy_get and was left for internal use. of_phy_get function was added and it was exported. The function enables to get a phy for a given device tree node. Signed-off-by: Kamil Debski Reviewed-by: Tomasz Figa Signed-off-by: Kishon Vijay Abraham I