With the legacy clock support gone, OMAP3 generic DPLL code can now be
moved over to the clock driver also. A few un-unused clkoutx2 functions
are also removed at the same time.
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
arch/arm/mach-omap2/Makefile | 8 +-
arch/arm/mach-omap2/clock.h | 4 -
arch/arm/mach-omap2/clock3xxx.c | 77 ----------
drivers/clk/ti/Makefile | 2 +-
drivers/clk/ti/clk-3xxx.c | 31 ++++
drivers/clk/ti/clock.h | 27 ++++
{arch/arm/mach-omap2 => drivers/clk/ti}/dpll3xxx.c | 153 ++++++++++----------
include/linux/clk/ti.h | 30 ----
8 files changed, 141 insertions(+), 191 deletions(-)
rename {arch/arm/mach-omap2 => drivers/clk/ti}/dpll3xxx.c (85%)
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index bf5d71d..f9d4ccf 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -189,15 +189,11 @@ obj-$(CONFIG_SOC_OMAP2430) += clock2430.o
obj-$(CONFIG_ARCH_OMAP3) += $(clock-common) clock3xxx.o
obj-$(CONFIG_ARCH_OMAP3) += clock34xx.o clkt34xx_dpll3m2.o
obj-$(CONFIG_ARCH_OMAP3) += clock3517.o
-obj-$(CONFIG_ARCH_OMAP3) += dpll3xxx.o
obj-$(CONFIG_ARCH_OMAP4) += $(clock-common)
-obj-$(CONFIG_ARCH_OMAP4) += dpll3xxx.o
-obj-$(CONFIG_SOC_AM33XX) += $(clock-common) dpll3xxx.o
+obj-$(CONFIG_SOC_AM33XX) += $(clock-common)
obj-$(CONFIG_SOC_OMAP5) += $(clock-common)
-obj-$(CONFIG_SOC_OMAP5) += dpll3xxx.o
obj-$(CONFIG_SOC_DRA7XX) += $(clock-common)
-obj-$(CONFIG_SOC_DRA7XX) += dpll3xxx.o
-obj-$(CONFIG_SOC_AM43XX) += $(clock-common) dpll3xxx.o
+obj-$(CONFIG_SOC_AM43XX) += $(clock-common)
# OMAP2 clock rate set data (old "OPP" data)
obj-$(CONFIG_SOC_OMAP2420) += opp2420_data.o
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index e2781b4..d60691d 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -180,10 +180,6 @@ struct clksel {
#define OMAP4XXX_EN_DPLL_FRBYPASS 0x6
#define OMAP4XXX_EN_DPLL_LOCKED 0x7
-u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk);
-void omap3_dpll_allow_idle(struct clk_hw_omap *clk);
-void omap3_dpll_deny_idle(struct clk_hw_omap *clk);
-
void __init omap2_clk_disable_clkdm_control(void);
void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
diff --git a/arch/arm/mach-omap2/clock3xxx.c b/arch/arm/mach-omap2/clock3xxx.c
index 4bd6122..0b0e3a87 100644
--- a/arch/arm/mach-omap2/clock3xxx.c
+++ b/arch/arm/mach-omap2/clock3xxx.c
@@ -29,82 +29,5 @@
#include "cm2xxx_3xxx.h"
#include "cm-regbits-34xx.h"
-/*
- * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
- * that are sourced by DPLL5, and both of these require this clock
- * to be at 120 MHz for proper operation.
- */
-#define DPLL5_FREQ_FOR_USBHOST 120000000
-
/* needed by omap3_core_dpll_m2_set_rate() */
struct clk *sdrc_ick_p, *arm_fck_p;
-
-/**
- * omap3_dpll4_set_rate - set rate for omap3 per-dpll
- * @hw: clock to change
- * @rate: target rate for clock
- * @parent_rate: rate of the parent clock
- *
- * Check if the current SoC supports the per-dpll reprogram operation
- * or not, and then do the rate change if supported. Returns -EINVAL
- * if not supported, 0 for success, and potential error codes from the
- * clock rate change.
- */
-int omap3_dpll4_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
-{
- /*
- * According to the 12-5 CDP code from TI, "Limitation 2.5"
- * on 3430ES1 prevents us from changing DPLL multipliers or dividers
- * on DPLL4.
- */
- if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) {
- pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n");
- return -EINVAL;
- }
-
- return omap3_noncore_dpll_set_rate(hw, rate, parent_rate);
-}
-
-/**
- * omap3_dpll4_set_rate_and_parent - set rate and parent for omap3 per-dpll
- * @hw: clock to change
- * @rate: target rate for clock
- * @parent_rate: rate of the parent clock
- * @index: parent index, 0 - reference clock, 1 - bypass clock
- *
- * Check if the current SoC support the per-dpll reprogram operation
- * or not, and then do the rate + parent change if supported. Returns
- * -EINVAL if not supported, 0 for success, and potential error codes
- * from the clock rate change.
- */
-int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate, u8 index)
-{
- if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) {
- pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n");
- return -EINVAL;
- }
-
- return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate,
- index);
-}
-
-void __init omap3_clk_lock_dpll5(void)
-{
- struct clk *dpll5_clk;
- struct clk *dpll5_m2_clk;
-
- dpll5_clk = clk_get(NULL, "dpll5_ck");
- clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST);
- clk_prepare_enable(dpll5_clk);
-
- /* Program dpll5_m2_clk divider for no division */
- dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck");
- clk_prepare_enable(dpll5_m2_clk);
- clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST);
-
- clk_disable_unprepare(dpll5_m2_clk);
- clk_disable_unprepare(dpll5_clk);
- return;
-}
diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
index 23cd726..fe2cfa2 100644
--- a/drivers/clk/ti/Makefile
+++ b/drivers/clk/ti/Makefile
@@ -1,7 +1,7 @@
obj-y += clk.o autoidle.o clockdomain.o
clk-common = dpll.o composite.o divider.o gate.o \
fixed-factor.o mux.o apll.o \
- clkt_dpll.o clkt_iclk.o
+ clkt_dpll.o clkt_iclk.o dpll3xxx.o
obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o
obj-$(CONFIG_SOC_TI81XX) += $(clk-common) fapll.o clk-816x.o
obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o
diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c
index bb3b883..5489ad8 100644
--- a/drivers/clk/ti/clk-3xxx.c
+++ b/drivers/clk/ti/clk-3xxx.c
@@ -21,6 +21,13 @@
#include "clock.h"
+/*
+ * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
+ * that are sourced by DPLL5, and both of these require this clock
+ * to be at 120 MHz for proper operation.
+ */
+#define DPLL5_FREQ_FOR_USBHOST 120000000
+
static struct ti_dt_clk omap3xxx_clks[] = {
DT_CLK(NULL, "apb_pclk", "dummy_apb_pclk"),
DT_CLK(NULL, "omap_32k_fck", "omap_32k_fck"),
@@ -325,6 +332,30 @@ enum {
OMAP3_SOC_OMAP3630,
};
+/**
+ * omap3_clk_lock_dpll5 - locks DPLL5
+ *
+ * Locks DPLL5 to a pre-defined frequency. This is required for proper
+ * operation of USB.
+ */
+void __init omap3_clk_lock_dpll5(void)
+{
+ struct clk *dpll5_clk;
+ struct clk *dpll5_m2_clk;
+
+ dpll5_clk = clk_get(NULL, "dpll5_ck");
+ clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST);
+ clk_prepare_enable(dpll5_clk);
+
+ /* Program dpll5_m2_clk divider for no division */
+ dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck");
+ clk_prepare_enable(dpll5_m2_clk);
+ clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST);
+
+ clk_disable_unprepare(dpll5_m2_clk);
+ clk_disable_unprepare(dpll5_clk);
+}
+
static int __init omap3xxx_dt_clk_init(int soc_type)
{
if (soc_type == OMAP3_SOC_AM35XX || soc_type == OMAP3_SOC_OMAP3630 ||
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 4b26af8..688d9e4 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -173,11 +173,38 @@ void omap2_init_clk_hw_omap_clocks(struct clk *clk);
int of_ti_clk_autoidle_setup(struct device_node *node);
void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
+extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
extern const struct clk_hw_omap_ops clkhwops_iclk;
extern const struct clk_hw_omap_ops clkhwops_iclk_wait;
u8 omap2_init_dpll_parent(struct clk_hw *hw);
+int omap3_noncore_dpll_enable(struct clk_hw *hw);
+void omap3_noncore_dpll_disable(struct clk_hw *hw);
+int omap3_noncore_dpll_set_parent(struct clk_hw *hw, u8 index);
+int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate);
+int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long parent_rate,
+ u8 index);
+long omap3_noncore_dpll_determine_rate(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long min_rate,
+ unsigned long max_rate,
+ unsigned long *best_parent_rate,
+ struct clk_hw **best_parent_clk);
+long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
+ unsigned long *parent_rate);
+unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
+ unsigned long parent_rate);
+
+unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
+int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
+ unsigned long parent_rate);
+int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate, u8 index);
+void omap3_clk_lock_dpll5(void);
unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
unsigned long parent_rate);
diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/drivers/clk/ti/dpll3xxx.c
similarity index 85%
rename from arch/arm/mach-omap2/dpll3xxx.c
rename to drivers/clk/ti/dpll3xxx.c
index 9a80f59..22d77a3 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/drivers/clk/ti/dpll3xxx.c
@@ -27,8 +27,8 @@
#include <linux/io.h>
#include <linux/bitops.h>
#include <linux/clkdev.h>
+#include <linux/clk/ti.h>
-#include "clockdomain.h"
#include "clock.h"
/* CM_AUTOIDLE_PLL*.AUTO_* bit values */
@@ -37,6 +37,13 @@
#define MAX_DPLL_WAIT_TRIES 1000000
+#define OMAP3XXX_EN_DPLL_LOCKED 0x7
+
+/* Forward declarations */
+static u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk);
+static void omap3_dpll_deny_idle(struct clk_hw_omap *clk);
+static void omap3_dpll_allow_idle(struct clk_hw_omap *clk);
+
/* Private functions */
/* _omap3_dpll_write_clken - write clken_bits arg to a DPLL's enable bits */
@@ -47,10 +54,10 @@ static void _omap3_dpll_write_clken(struct clk_hw_omap *clk, u8 clken_bits)
dd = clk->dpll_data;
- v = omap2_clk_readl(clk, dd->control_reg);
+ v = ti_clk_ll_ops->clk_readl(dd->control_reg);
v &= ~dd->enable_mask;
v |= clken_bits << __ffs(dd->enable_mask);
- omap2_clk_writel(v, clk, dd->control_reg);
+ ti_clk_ll_ops->clk_writel(v, dd->control_reg);
}
/* _omap3_wait_dpll_status: wait for a DPLL to enter a specific state */
@@ -66,14 +73,14 @@ static int _omap3_wait_dpll_status(struct clk_hw_omap *clk, u8 state)
state <<= __ffs(dd->idlest_mask);
- while (((omap2_clk_readl(clk, dd->idlest_reg) & dd->idlest_mask)
+ while (((ti_clk_ll_ops->clk_readl(dd->idlest_reg) & dd->idlest_mask)
!= state) && i < MAX_DPLL_WAIT_TRIES) {
i++;
udelay(1);
}
if (i == MAX_DPLL_WAIT_TRIES) {
- printk(KERN_ERR "clock: %s failed transition to '%s'\n",
+ pr_err("clock: %s failed transition to '%s'\n",
clk_name, (state) ? "locked" : "bypassed");
} else {
pr_debug("clock: %s transition to '%s' in %d loops\n",
@@ -144,7 +151,8 @@ static int _omap3_noncore_dpll_lock(struct clk_hw_omap *clk)
state <<= __ffs(dd->idlest_mask);
/* Check if already locked */
- if ((omap2_clk_readl(clk, dd->idlest_reg) & dd->idlest_mask) == state)
+ if ((ti_clk_ll_ops->clk_readl(dd->idlest_reg) & dd->idlest_mask) ==
+ state)
goto done;
ai = omap3_dpll_autoidle_read(clk);
@@ -308,14 +316,14 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
* only since freqsel field is no longer present on other devices.
*/
if (ti_clk_get_features()->flags & TI_CLK_DPLL_HAS_FREQSEL) {
- v = omap2_clk_readl(clk, dd->control_reg);
+ v = ti_clk_ll_ops->clk_readl(dd->control_reg);
v &= ~dd->freqsel_mask;
v |= freqsel << __ffs(dd->freqsel_mask);
- omap2_clk_writel(v, clk, dd->control_reg);
+ ti_clk_ll_ops->clk_writel(v, dd->control_reg);
}
/* Set DPLL multiplier, divider */
- v = omap2_clk_readl(clk, dd->mult_div1_reg);
+ v = ti_clk_ll_ops->clk_readl(dd->mult_div1_reg);
/* Handle Duty Cycle Correction */
if (dd->dcc_mask) {
@@ -342,11 +350,11 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
v |= sd_div << __ffs(dd->sddiv_mask);
}
- omap2_clk_writel(v, clk, dd->mult_div1_reg);
+ ti_clk_ll_ops->clk_writel(v, dd->mult_div1_reg);
/* Set 4X multiplier and low-power mode */
if (dd->m4xen_mask || dd->lpmode_mask) {
- v = omap2_clk_readl(clk, dd->control_reg);
+ v = ti_clk_ll_ops->clk_readl(dd->control_reg);
if (dd->m4xen_mask) {
if (dd->last_rounded_m4xen)
@@ -362,7 +370,7 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
v &= ~dd->lpmode_mask;
}
- omap2_clk_writel(v, clk, dd->control_reg);
+ ti_clk_ll_ops->clk_writel(v, dd->control_reg);
}
/* We let the clock framework set the other output dividers later */
@@ -417,12 +425,12 @@ int omap3_noncore_dpll_enable(struct clk_hw *hw)
return -EINVAL;
if (clk->clkdm) {
- r = clkdm_clk_enable(clk->clkdm, hw->clk);
+ r = ti_clk_ll_ops->clkdm_clk_enable(clk->clkdm, hw->clk);
if (r) {
WARN(1,
"%s: could not enable %s's clockdomain %s: %d\n",
__func__, __clk_get_name(hw->clk),
- clk->clkdm->name, r);
+ clk->clkdm_name, r);
return r;
}
}
@@ -453,10 +461,9 @@ void omap3_noncore_dpll_disable(struct clk_hw *hw)
_omap3_noncore_dpll_stop(clk);
if (clk->clkdm)
- clkdm_clk_disable(clk->clkdm, hw->clk);
+ ti_clk_ll_ops->clkdm_clk_disable(clk->clkdm, hw->clk);
}
-
/* Non-CORE DPLL rate set code */
/**
@@ -618,7 +625,7 @@ int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw,
* -EINVAL if passed a null pointer or if the struct clk does not
* appear to refer to a DPLL.
*/
-u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk)
+static u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk)
{
const struct dpll_data *dd;
u32 v;
@@ -631,7 +638,7 @@ u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk)
if (!dd->autoidle_reg)
return -EINVAL;
- v = omap2_clk_readl(clk, dd->autoidle_reg);
+ v = ti_clk_ll_ops->clk_readl(dd->autoidle_reg);
v &= dd->autoidle_mask;
v >>= __ffs(dd->autoidle_mask);
@@ -647,7 +654,7 @@ u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk)
* OMAP3430. The DPLL will enter low-power stop when its downstream
* clocks are gated. No return value.
*/
-void omap3_dpll_allow_idle(struct clk_hw_omap *clk)
+static void omap3_dpll_allow_idle(struct clk_hw_omap *clk)
{
const struct dpll_data *dd;
u32 v;
@@ -665,11 +672,10 @@ void omap3_dpll_allow_idle(struct clk_hw_omap *clk)
* by writing 0x5 instead of 0x1. Add some mechanism to
* optionally enter this mode.
*/
- v = omap2_clk_readl(clk, dd->autoidle_reg);
+ v = ti_clk_ll_ops->clk_readl(dd->autoidle_reg);
v &= ~dd->autoidle_mask;
v |= DPLL_AUTOIDLE_LOW_POWER_STOP << __ffs(dd->autoidle_mask);
- omap2_clk_writel(v, clk, dd->autoidle_reg);
-
+ ti_clk_ll_ops->clk_writel(v, dd->autoidle_reg);
}
/**
@@ -678,7 +684,7 @@ void omap3_dpll_allow_idle(struct clk_hw_omap *clk)
*
* Disable DPLL automatic idle control. No return value.
*/
-void omap3_dpll_deny_idle(struct clk_hw_omap *clk)
+static void omap3_dpll_deny_idle(struct clk_hw_omap *clk)
{
const struct dpll_data *dd;
u32 v;
@@ -691,11 +697,10 @@ void omap3_dpll_deny_idle(struct clk_hw_omap *clk)
if (!dd->autoidle_reg)
return;
- v = omap2_clk_readl(clk, dd->autoidle_reg);
+ v = ti_clk_ll_ops->clk_readl(dd->autoidle_reg);
v &= ~dd->autoidle_mask;
v |= DPLL_AUTOIDLE_DISABLE << __ffs(dd->autoidle_mask);
- omap2_clk_writel(v, clk, dd->autoidle_reg);
-
+ ti_clk_ll_ops->clk_writel(v, dd->autoidle_reg);
}
/* Clock control for DPLL outputs */
@@ -753,7 +758,7 @@ unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
WARN_ON(!dd->enable_mask);
- v = omap2_clk_readl(pclk, dd->control_reg) & dd->enable_mask;
+ v = ti_clk_ll_ops->clk_readl(dd->control_reg) & dd->enable_mask;
v >>= __ffs(dd->enable_mask);
if ((v != OMAP3XXX_EN_DPLL_LOCKED) || (dd->flags & DPLL_J_TYPE))
rate = parent_rate;
@@ -762,57 +767,59 @@ unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
return rate;
}
-int omap3_clkoutx2_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
-{
- return 0;
-}
+/* OMAP3/4 non-CORE DPLL clkops */
+const struct clk_hw_omap_ops clkhwops_omap3_dpll = {
+ .allow_idle = omap3_dpll_allow_idle,
+ .deny_idle = omap3_dpll_deny_idle,
+};
-long omap3_clkoutx2_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate)
+/**
+ * omap3_dpll4_set_rate - set rate for omap3 per-dpll
+ * @hw: clock to change
+ * @rate: target rate for clock
+ * @parent_rate: rate of the parent clock
+ *
+ * Check if the current SoC supports the per-dpll reprogram operation
+ * or not, and then do the rate change if supported. Returns -EINVAL
+ * if not supported, 0 for success, and potential error codes from the
+ * clock rate change.
+ */
+int omap3_dpll4_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
{
- const struct dpll_data *dd;
- u32 v;
- struct clk_hw_omap *pclk = NULL;
-
- if (!*prate)
- return 0;
-
- pclk = omap3_find_clkoutx2_dpll(hw);
-
- if (!pclk)
- return 0;
-
- dd = pclk->dpll_data;
-
- /* TYPE J does not have a clkoutx2 */
- if (dd->flags & DPLL_J_TYPE) {
- *prate = __clk_round_rate(__clk_get_parent(pclk->hw.clk), rate);
- return *prate;
+ /*
+ * According to the 12-5 CDP code from TI, "Limitation 2.5"
+ * on 3430ES1 prevents us from changing DPLL multipliers or dividers
+ * on DPLL4.
+ */
+ if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) {
+ pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n");
+ return -EINVAL;
}
- WARN_ON(!dd->enable_mask);
-
- v = omap2_clk_readl(pclk, dd->control_reg) & dd->enable_mask;
- v >>= __ffs(dd->enable_mask);
-
- /* If in bypass, the rate is fixed to the bypass rate*/
- if (v != OMAP3XXX_EN_DPLL_LOCKED)
- return *prate;
-
- if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) {
- unsigned long best_parent;
+ return omap3_noncore_dpll_set_rate(hw, rate, parent_rate);
+}
- best_parent = (rate / 2);
- *prate = __clk_round_rate(__clk_get_parent(hw->clk),
- best_parent);
+/**
+ * omap3_dpll4_set_rate_and_parent - set rate and parent for omap3 per-dpll
+ * @hw: clock to change
+ * @rate: target rate for clock
+ * @parent_rate: rate of the parent clock
+ * @index: parent index, 0 - reference clock, 1 - bypass clock
+ *
+ * Check if the current SoC support the per-dpll reprogram operation
+ * or not, and then do the rate + parent change if supported. Returns
+ * -EINVAL if not supported, 0 for success, and potential error codes
+ * from the clock rate change.
+ */
+int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate, u8 index)
+{
+ if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) {
+ pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n");
+ return -EINVAL;
}
- return *prate * 2;
+ return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate,
+ index);
}
-
-/* OMAP3/4 non-CORE DPLL clkops */
-const struct clk_hw_omap_ops clkhwops_omap3_dpll = {
- .allow_idle = omap3_dpll_allow_idle,
- .deny_idle = omap3_dpll_deny_idle,
-};
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 3ca818e..0f9d15f 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -271,41 +271,13 @@ extern const struct clk_ops ti_clk_mux_ops;
#define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw)
-int omap3_noncore_dpll_enable(struct clk_hw *hw);
-void omap3_noncore_dpll_disable(struct clk_hw *hw);
-int omap3_noncore_dpll_set_parent(struct clk_hw *hw, u8 index);
-int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate);
-int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw,
- unsigned long rate,
- unsigned long parent_rate,
- u8 index);
-long omap3_noncore_dpll_determine_rate(struct clk_hw *hw,
- unsigned long rate,
- unsigned long min_rate,
- unsigned long max_rate,
- unsigned long *best_parent_rate,
- struct clk_hw **best_parent_clk);
-unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
-long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
- unsigned long *parent_rate);
void omap2_init_clk_clkdm(struct clk_hw *clk);
-unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
- unsigned long parent_rate);
-int omap3_clkoutx2_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate);
-long omap3_clkoutx2_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate);
int omap2_clkops_enable_clkdm(struct clk_hw *hw);
void omap2_clkops_disable_clkdm(struct clk_hw *hw);
int omap2_clk_disable_autoidle_all(void);
int omap2_clk_enable_autoidle_all(void);
int omap2_clk_allow_idle(struct clk *clk);
int omap2_clk_deny_idle(struct clk *clk);
-int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
- unsigned long parent_rate);
-int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate, u8 index);
int omap2_dflt_clk_enable(struct clk_hw *hw);
void omap2_dflt_clk_disable(struct clk_hw *hw);
int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
@@ -317,7 +289,6 @@ void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk,
void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
-void omap3_clk_lock_dpll5(void);
unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
unsigned long parent_rate);
int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
@@ -365,7 +336,6 @@ struct ti_clk_features *ti_clk_get_features(void);
extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
-extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
extern const struct clk_hw_omap_ops clkhwops_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait;
extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
--
1.7.9.5
--
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