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: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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@ -238,6 +238,10 @@ static int ti_pipe3_exit(struct phy *x)
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u32 val;
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unsigned long timeout;
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/* SATA DPLL can't be powered down due to Errata i783 */
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if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-sata"))
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return 0;
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/* Put DPLL in IDLE mode */
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val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
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val |= PLL_IDLE;
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