Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 56042e4e authored by Roger Quadros's avatar Roger Quadros Committed by Kishon Vijay Abraham I
Browse files

phy: ti-pipe3: Fix suspend/resume and module reload 



Due to Errata i783, SATA breaks if its DPLL is idled. The recommeded
workaround to issue a softreset to the SATA controller doesn't seem to
work. Here we just prevent SATA DPLL from Idling and hence avoid
the issue altogether.

Signed-off-by: default avatarRoger Quadros <rogerq@ti.com>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent 629138db

drivers/phy/phy-ti-pipe3.c

+4 −0
Original line number Diff line number Diff line
@@ -238,6 +238,10 @@ static int ti_pipe3_exit(struct phy *x) 
	u32 val;

	unsigned long timeout;



	/* SATA DPLL can't be powered down due to Errata i783 */

	if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-sata"))

		return 0;



	/* Put DPLL in IDLE mode */

	val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);

	val |= PLL_IDLE;