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clk: ti: Add functions to save/restore clk context

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SoCs like AM43XX lose clock registers context during RTC-only
suspend. Hence add functions to save/restore the clock registers
context.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Russ Dill
2018-09-04 12:19:37 +05:30
committed by Tero Kristo
parent 435365485f
commit d6e7bbc148
7 changed files with 206 additions and 0 deletions
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6
drivers/clk/ti/dpll.c
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@@ -39,6 +39,8 @@ static const struct clk_ops dpll_m4xen_ck_ops = {
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap4_dpll_regm4xen_determine_rate,
.get_parent = &omap2_init_dpll_parent,
.save_context = &omap3_core_dpll_save_context,
.restore_context = &omap3_core_dpll_restore_context,
};
#else
static const struct clk_ops dpll_m4xen_ck_ops = {};
@@ -62,6 +64,8 @@ static const struct clk_ops dpll_ck_ops = {
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap3_noncore_dpll_determine_rate,
.get_parent = &omap2_init_dpll_parent,
.save_context = &omap3_noncore_dpll_save_context,
.restore_context = &omap3_noncore_dpll_restore_context,
};
static const struct clk_ops dpll_no_gate_ck_ops = {
@@ -72,6 +76,8 @@ static const struct clk_ops dpll_no_gate_ck_ops = {
.set_parent = &omap3_noncore_dpll_set_parent,
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap3_noncore_dpll_determine_rate,
.save_context = &omap3_noncore_dpll_save_context,
.restore_context = &omap3_noncore_dpll_restore_context
};
#else
static const struct clk_ops dpll_core_ck_ops = {};