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Diffstat (limited to 'arch/arm/mach-omap2/clkt2xxx_apll.c')
-rw-r--r--arch/arm/mach-omap2/clkt2xxx_apll.c62
1 files changed, 44 insertions, 18 deletions
diff --git a/arch/arm/mach-omap2/clkt2xxx_apll.c b/arch/arm/mach-omap2/clkt2xxx_apll.c
index 8c5b13e7ee61..25b1feed480d 100644
--- a/arch/arm/mach-omap2/clkt2xxx_apll.c
+++ b/arch/arm/mach-omap2/clkt2xxx_apll.c
@@ -38,62 +38,88 @@
/* Private functions */
-static int _apll96_enable(struct clk *clk)
+/**
+ * omap2xxx_clk_apll_locked - is the APLL locked?
+ * @hw: struct clk_hw * of the APLL to check
+ *
+ * If the APLL IP block referred to by @hw indicates that it's locked,
+ * return true; otherwise, return false.
+ */
+static bool omap2xxx_clk_apll_locked(struct clk_hw *hw)
+{
+ struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+ u32 r, apll_mask;
+
+ apll_mask = EN_APLL_LOCKED << clk->enable_bit;
+
+ r = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+
+ return ((r & apll_mask) == apll_mask) ? true : false;
+}
+
+int omap2_clk_apll96_enable(struct clk_hw *hw)
{
return omap2xxx_cm_apll96_enable();
}
-static int _apll54_enable(struct clk *clk)
+int omap2_clk_apll54_enable(struct clk_hw *hw)
{
return omap2xxx_cm_apll54_enable();
}
-static void _apll96_allow_idle(struct clk *clk)
+static void _apll96_allow_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll96_auto_low_power_stop();
}
-static void _apll96_deny_idle(struct clk *clk)
+static void _apll96_deny_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll96_disable_autoidle();
}
-static void _apll54_allow_idle(struct clk *clk)
+static void _apll54_allow_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll54_auto_low_power_stop();
}
-static void _apll54_deny_idle(struct clk *clk)
+static void _apll54_deny_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll54_disable_autoidle();
}
-static void _apll96_disable(struct clk *clk)
+void omap2_clk_apll96_disable(struct clk_hw *hw)
{
omap2xxx_cm_apll96_disable();
}
-static void _apll54_disable(struct clk *clk)
+void omap2_clk_apll54_disable(struct clk_hw *hw)
{
omap2xxx_cm_apll54_disable();
}
-/* Public data */
+unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ return (omap2xxx_clk_apll_locked(hw)) ? 54000000 : 0;
+}
-const struct clkops clkops_apll96 = {
- .enable = _apll96_enable,
- .disable = _apll96_disable,
- .allow_idle = _apll96_allow_idle,
- .deny_idle = _apll96_deny_idle,
-};
+unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ return (omap2xxx_clk_apll_locked(hw)) ? 96000000 : 0;
+}
-const struct clkops clkops_apll54 = {
- .enable = _apll54_enable,
- .disable = _apll54_disable,
+/* Public data */
+const struct clk_hw_omap_ops clkhwops_apll54 = {
.allow_idle = _apll54_allow_idle,
.deny_idle = _apll54_deny_idle,
};
+const struct clk_hw_omap_ops clkhwops_apll96 = {
+ .allow_idle = _apll96_allow_idle,
+ .deny_idle = _apll96_deny_idle,
+};
+
/* Public functions */
u32 omap2xxx_get_apll_clkin(void)
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