ARM: OMAP2+: PRM: add generic API for deasserting hardware reset
PRM driver now has a generic API for deasserting hardware resets. SoC specific support functions are registered through the prm_ll_data. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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Tony Lindgren

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@@ -442,6 +442,30 @@ int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset)
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return prm_ll_data->assert_hardreset(shift, part, prm_mod, offset);
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}
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/**
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* omap_prm_deassert_hardreset - deassert hardreset for an IP block
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* @shift: register bit shift corresponding to the reset line
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* @st_shift: reset status bit shift corresponding to the reset line
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* @part: PRM partition
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* @prm_mod: PRM submodule base or instance offset
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* @offset: register offset
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* @st_offset: status register offset
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*
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* Deasserts a hardware reset line for an IP block.
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*/
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int omap_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 prm_mod,
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u16 offset, u16 st_offset)
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{
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if (!prm_ll_data->deassert_hardreset) {
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WARN_ONCE(1, "prm: %s: no mapping function defined\n",
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__func__);
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return -EINVAL;
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}
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return prm_ll_data->deassert_hardreset(shift, st_shift, part, prm_mod,
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offset, st_offset);
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}
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/**
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* prm_register - register per-SoC low-level data with the PRM
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* @pld: low-level per-SoC OMAP PRM data & function pointers to register
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