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| author |   Tero Kristo <t-kristo@ti.com> | 2014-10-27 08:39:24 -0700 |
|---|---|---|
| committer |   Tony Lindgren <tony@atomide.com> | 2014-10-27 08:39:24 -0700 |
| commit | efd44dc35f550e0cedd983d13e180da5e0d368a9 (patch) | |
| tree | 97f7ac3ce5904a6f3f2c54bca4d8ed460352f0e5 /arch/arm/mach-omap2/prm_common.c | |
| parent | ARM: AM33xx: PRM: add support for prm_init (diff) | |
| download | linux-dev-efd44dc35f550e0cedd983d13e180da5e0d368a9.tar.xz linux-dev-efd44dc35f550e0cedd983d13e180da5e0d368a9.zip | |
ARM: OMAP2+: PRM: add generic API for asserting hardware reset
PRM driver now has a generic API for asserting 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>
Diffstat (limited to 'arch/arm/mach-omap2/prm_common.c')
| -rw-r--r-- | arch/arm/mach-omap2/prm_common.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index ee2b5222eac0..4f8c22075d39 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -423,6 +423,26 @@ void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx) } /** + * omap_prm_assert_hardreset - assert hardreset for an IP block + * @shift: register bit shift corresponding to the reset line + * @part: PRM partition + * @prm_mod: PRM submodule base or instance offset + * @offset: register offset + * + * Asserts a hardware reset line for an IP block. + */ +int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset) +{ + if (!prm_ll_data->assert_hardreset) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return -EINVAL; + } + + return prm_ll_data->assert_hardreset(shift, part, prm_mod, offset); +} + +/** * prm_register - register per-SoC low-level data with the PRM * @pld: low-level per-SoC OMAP PRM data & function pointers to register * |