phy: samsung: phy-exynos-pcie: sanitize init/power_on callbacks

The exynos-pcie driver called phy_power_on() before phy_init() for some
historical reasons. However the generic PHY framework assumes that the
proper sequence is to call phy_init() first, then phy_power_on(). The
operations done by both functions should be considered as one action and as
such they are called by the exynos-pcie driver (without doing anything
between them). The initialization is just a sequence of register writes,
which cannot be altered without breaking the hardware operation.

To match the generic PHY framework requirement, simply move all register
writes to the phy_init()/phy_exit() and drop power_on()/power_off()
callbacks. This way the driver will also work with the old (incorrect)
PHY initialization call sequence.

Link: https://lore.kernel.org/r/[email protected]
Reported-by: Bjorn Helgaas <[email protected]>
Signed-off-by: Marek Szyprowski <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Chanho Park <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Acked-By: Vinod Koul <[email protected]>

0 files changed, 0 insertions, 0 deletions