* [PATCH 01/11] clk: ti: add core support for initializing legacy clocks
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 02/11] clk: ti: mux: add support for legacy mux init Tero Kristo
` (9 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data for OMAP3 is being moved under clock driver, thus
base support for this is needed. This patch adds basic definitions for
clock init descriptors and core infrastructure for initialization,
which will be called from the OMAP3 clock init.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/clk/ti/clk.c | 110 +++++++++++++++++++++++++++++++++
drivers/clk/ti/clock.h | 160 ++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 270 insertions(+)
create mode 100644 drivers/clk/ti/clock.h
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 337abe5..a8958f1 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -22,6 +22,8 @@
#include <linux/of_address.h>
#include <linux/list.h>
+#include "clock.h"
+
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -183,3 +185,111 @@ void ti_dt_clk_init_retry_clks(void)
retries--;
}
}
+
+void __init ti_clk_patch_legacy_clks(struct ti_clk **patch)
+{
+ while (*patch) {
+ memcpy((*patch)->patch, *patch, sizeof(**patch));
+ patch++;
+ }
+}
+
+struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
+{
+ struct clk *clk;
+ struct ti_clk_fixed *fixed;
+ struct ti_clk_fixed_factor *fixed_factor;
+ struct clk_hw *clk_hw;
+
+ if (setup->clk)
+ return setup->clk;
+
+ switch (setup->type) {
+ case TI_CLK_FIXED:
+ fixed = setup->data;
+
+ clk = clk_register_fixed_rate(NULL, setup->name, NULL,
+ CLK_IS_ROOT, fixed->frequency);
+ break;
+ case TI_CLK_FIXED_FACTOR:
+ fixed_factor = setup->data;
+
+ clk = clk_register_fixed_factor(NULL, setup->name,
+ fixed_factor->parent,
+ 0, fixed_factor->mult,
+ fixed_factor->div);
+ break;
+ default:
+ pr_err("bad type for %s!\n", setup->name);
+ clk = ERR_PTR(-EINVAL);
+ }
+
+ if (!IS_ERR(clk)) {
+ setup->clk = clk;
+ if (setup->clkdm_name) {
+ if (__clk_get_flags(clk) & CLK_IS_BASIC) {
+ pr_warn("can't setup clkdm for basic clk %s\n",
+ setup->name);
+ } else {
+ clk_hw = __clk_get_hw(clk);
+ to_clk_hw_omap(clk_hw)->clkdm_name =
+ setup->clkdm_name;
+ omap2_init_clk_clkdm(clk_hw);
+ }
+ }
+ }
+
+ return clk;
+}
+
+int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks)
+{
+ struct clk *clk;
+ bool retry;
+ struct ti_clk_alias *retry_clk;
+ struct ti_clk_alias *tmp;
+
+ while (clks->clk) {
+ clk = ti_clk_register_clk(clks->clk);
+ if (IS_ERR(clk)) {
+ if (PTR_ERR(clk) == -EAGAIN) {
+ list_add(&clks->link, &retry_list);
+ } else {
+ pr_err("register for %s failed: %ld\n",
+ clks->clk->name, PTR_ERR(clk));
+ return PTR_ERR(clk);
+ }
+ } else {
+ clks->lk.clk = clk;
+ clkdev_add(&clks->lk);
+ }
+ clks++;
+ }
+
+ retry = true;
+
+ while (!list_empty(&retry_list) && retry) {
+ retry = false;
+ list_for_each_entry_safe(retry_clk, tmp, &retry_list, link) {
+ pr_debug("retry-init: %s\n", retry_clk->clk->name);
+ clk = ti_clk_register_clk(retry_clk->clk);
+ if (IS_ERR(clk)) {
+ if (PTR_ERR(clk) == -EAGAIN) {
+ continue;
+ } else {
+ pr_err("register for %s failed: %ld\n",
+ retry_clk->clk->name,
+ PTR_ERR(clk));
+ return PTR_ERR(clk);
+ }
+ } else {
+ retry = true;
+ retry_clk->lk.clk = clk;
+ clkdev_add(&retry_clk->lk);
+ list_del(&retry_clk->link);
+ }
+ }
+ }
+
+ return 0;
+}
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
new file mode 100644
index 0000000..6ee6c6e
--- /dev/null
+++ b/drivers/clk/ti/clock.h
@@ -0,0 +1,160 @@
+/*
+ * TI Clock driver internal definitions
+ *
+ * Copyright (C) 2014 Texas Instruments, Inc
+ * Tero Kristo (t-kristo at ti.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#ifndef __DRIVERS_CLK_TI_CLOCK__
+#define __DRIVERS_CLK_TI_CLOCK__
+
+enum {
+ TI_CLK_FIXED,
+ TI_CLK_MUX,
+ TI_CLK_DIVIDER,
+ TI_CLK_COMPOSITE,
+ TI_CLK_FIXED_FACTOR,
+ TI_CLK_GATE,
+ TI_CLK_DPLL,
+};
+
+/* Global flags */
+#define CLKF_INDEX_POWER_OF_TWO (1 << 0)
+#define CLKF_INDEX_STARTS_AT_ONE (1 << 1)
+#define CLKF_SET_RATE_PARENT (1 << 2)
+#define CLKF_OMAP3 (1 << 3)
+#define CLKF_AM35XX (1 << 4)
+
+/* Gate flags */
+#define CLKF_SET_BIT_TO_DISABLE (1 << 5)
+#define CLKF_INTERFACE (1 << 6)
+#define CLKF_SSI (1 << 7)
+#define CLKF_DSS (1 << 8)
+#define CLKF_HSOTGUSB (1 << 9)
+#define CLKF_WAIT (1 << 10)
+#define CLKF_NO_WAIT (1 << 11)
+#define CLKF_HSDIV (1 << 12)
+#define CLKF_CLKDM (1 << 13)
+
+/* DPLL flags */
+#define CLKF_LOW_POWER_STOP (1 << 5)
+#define CLKF_LOCK (1 << 6)
+#define CLKF_LOW_POWER_BYPASS (1 << 7)
+#define CLKF_PER (1 << 8)
+#define CLKF_CORE (1 << 9)
+#define CLKF_J_TYPE (1 << 10)
+
+#define CLK(dev, con, ck) \
+ { \
+ .lk = { \
+ .dev_id = dev, \
+ .con_id = con, \
+ }, \
+ .clk = ck, \
+ }
+
+struct ti_clk {
+ const char *name;
+ const char *clkdm_name;
+ int type;
+ void *data;
+ struct ti_clk *patch;
+ struct clk *clk;
+};
+
+struct ti_clk_alias {
+ struct ti_clk *clk;
+ struct clk_lookup lk;
+ struct list_head link;
+};
+
+struct ti_clk_fixed {
+ u32 frequency;
+ u16 flags;
+};
+
+struct ti_clk_mux {
+ u8 bit_shift;
+ int num_parents;
+ u16 reg;
+ u8 module;
+ const char **parents;
+ u16 flags;
+};
+
+struct ti_clk_divider {
+ const char *parent;
+ u8 bit_shift;
+ u16 max_div;
+ u16 reg;
+ u8 module;
+ int *dividers;
+ int num_dividers;
+ u16 flags;
+};
+
+struct ti_clk_fixed_factor {
+ const char *parent;
+ u16 div;
+ u16 mult;
+ u16 flags;
+};
+
+struct ti_clk_gate {
+ const char *parent;
+ u8 bit_shift;
+ u16 reg;
+ u8 module;
+ u16 flags;
+};
+
+struct ti_clk_composite {
+ struct ti_clk_divider *divider;
+ struct ti_clk_mux *mux;
+ struct ti_clk_gate *gate;
+ u16 flags;
+};
+
+struct ti_clk_clkdm_gate {
+ const char *parent;
+ u16 flags;
+};
+
+struct ti_clk_dpll {
+ int num_parents;
+ u16 control_reg;
+ u16 idlest_reg;
+ u16 autoidle_reg;
+ u16 mult_div1_reg;
+ u8 module;
+ const char **parents;
+ u16 flags;
+ u8 modes;
+ u32 mult_mask;
+ u32 div1_mask;
+ u32 enable_mask;
+ u32 autoidle_mask;
+ u32 freqsel_mask;
+ u32 idlest_mask;
+ u32 dco_mask;
+ u32 sddiv_mask;
+ u16 max_multiplier;
+ u16 max_divider;
+ u8 auto_recal_bit;
+ u8 recal_en_bit;
+ u8 recal_st_bit;
+};
+
+void ti_clk_patch_legacy_clks(struct ti_clk **patch);
+struct clk *ti_clk_register_clk(struct ti_clk *setup);
+int ti_clk_register_legacy_clks(struct ti_clk_alias *clks);
+
+#endif
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 02/11] clk: ti: mux: add support for legacy mux init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
2014-12-16 16:20 ` [PATCH 01/11] clk: ti: add core support for initializing legacy clocks Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 03/11] clk: ti: gate: add support for legacy gate init Tero Kristo
` (8 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data is initialized slightly differently compared to
DT clocks, thus add support for this.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/clk/ti/clk.c | 3 +++
drivers/clk/ti/clock.h | 4 +++
drivers/clk/ti/mux.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++--
3 files changed, 75 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index a8958f1..215f681 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -211,6 +211,9 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
clk = clk_register_fixed_rate(NULL, setup->name, NULL,
CLK_IS_ROOT, fixed->frequency);
break;
+ case TI_CLK_MUX:
+ clk = ti_clk_register_mux(setup);
+ break;
case TI_CLK_FIXED_FACTOR:
fixed_factor = setup->data;
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 6ee6c6e..c06bbf4 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -153,6 +153,10 @@ struct ti_clk_dpll {
u8 recal_st_bit;
};
+struct clk *ti_clk_register_mux(struct ti_clk *setup);
+
+struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup);
+
void ti_clk_patch_legacy_clks(struct ti_clk **patch);
struct clk *ti_clk_register_clk(struct ti_clk *setup);
int ti_clk_register_legacy_clks(struct ti_clk_alias *clks);
diff --git a/drivers/clk/ti/mux.c b/drivers/clk/ti/mux.c
index e9d650e..728e253 100644
--- a/drivers/clk/ti/mux.c
+++ b/drivers/clk/ti/mux.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk/ti.h>
+#include "clock.h"
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -144,6 +145,39 @@ static struct clk *_register_mux(struct device *dev, const char *name,
return clk;
}
+struct clk *ti_clk_register_mux(struct ti_clk *setup)
+{
+ struct ti_clk_mux *mux;
+ u32 flags;
+ u8 mux_flags = 0;
+ struct clk_omap_reg *reg_setup;
+ u32 reg;
+ u32 mask;
+
+ reg_setup = (struct clk_omap_reg *)®
+
+ mux = setup->data;
+ flags = CLK_SET_RATE_NO_REPARENT;
+
+ mask = mux->num_parents;
+ if (!(mux->flags & CLKF_INDEX_STARTS_AT_ONE))
+ mask--;
+
+ mask = (1 << fls(mask)) - 1;
+ reg_setup->index = mux->module;
+ reg_setup->offset = mux->reg;
+
+ if (mux->flags & CLKF_INDEX_STARTS_AT_ONE)
+ mux_flags |= CLK_MUX_INDEX_ONE;
+
+ if (mux->flags & CLKF_SET_RATE_PARENT)
+ flags |= CLK_SET_RATE_PARENT;
+
+ return _register_mux(NULL, setup->name, mux->parents, mux->num_parents,
+ flags, (void __iomem *)reg, mux->bit_shift, mask,
+ mux_flags, NULL, NULL);
+}
+
/**
* of_mux_clk_setup - Setup function for simple mux rate clock
* @node: DT node for the clock
@@ -194,8 +228,9 @@ static void of_mux_clk_setup(struct device_node *node)
mask = (1 << fls(mask)) - 1;
- clk = _register_mux(NULL, node->name, parent_names, num_parents, flags,
- reg, shift, mask, clk_mux_flags, NULL, NULL);
+ clk = _register_mux(NULL, node->name, parent_names, num_parents,
+ flags, reg, shift, mask, clk_mux_flags, NULL,
+ NULL);
if (!IS_ERR(clk))
of_clk_add_provider(node, of_clk_src_simple_get, clk);
@@ -205,6 +240,37 @@ cleanup:
}
CLK_OF_DECLARE(mux_clk, "ti,mux-clock", of_mux_clk_setup);
+struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup)
+{
+ struct clk_mux *mux;
+ struct clk_omap_reg *reg;
+ int num_parents;
+
+ if (!setup)
+ return NULL;
+
+ mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ return ERR_PTR(-ENOMEM);
+
+ reg = (struct clk_omap_reg *)&mux->reg;
+
+ mux->shift = setup->bit_shift;
+
+ reg->index = setup->module;
+ reg->offset = setup->reg;
+
+ if (setup->flags & CLKF_INDEX_STARTS_AT_ONE)
+ mux->flags |= CLK_MUX_INDEX_ONE;
+
+ num_parents = setup->num_parents;
+
+ mux->mask = num_parents - 1;
+ mux->mask = (1 << fls(mux->mask)) - 1;
+
+ return &mux->hw;
+}
+
static void __init of_ti_composite_mux_clk_setup(struct device_node *node)
{
struct clk_mux *mux;
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 03/11] clk: ti: gate: add support for legacy gate init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
2014-12-16 16:20 ` [PATCH 01/11] clk: ti: add core support for initializing legacy clocks Tero Kristo
2014-12-16 16:20 ` [PATCH 02/11] clk: ti: mux: add support for legacy mux init Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 04/11] clk: ti: interface: add support for legacy interface clock init Tero Kristo
` (7 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data is initialialized slightly differently compared to
DT clocks, thus add support for this.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/clk/ti/clk.c | 3 +
drivers/clk/ti/clock.h | 2 +
drivers/clk/ti/gate.c | 158 +++++++++++++++++++++++++++++++++++++++---------
3 files changed, 133 insertions(+), 30 deletions(-)
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 215f681..676dbf1 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -222,6 +222,9 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
0, fixed_factor->mult,
fixed_factor->div);
break;
+ case TI_CLK_GATE:
+ clk = ti_clk_register_gate(setup);
+ break;
default:
pr_err("bad type for %s!\n", setup->name);
clk = ERR_PTR(-EINVAL);
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index c06bbf4..d0715bc 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -153,8 +153,10 @@ struct ti_clk_dpll {
u8 recal_st_bit;
};
+struct clk *ti_clk_register_gate(struct ti_clk *setup);
struct clk *ti_clk_register_mux(struct ti_clk *setup);
+struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup);
struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup);
void ti_clk_patch_legacy_clks(struct ti_clk **patch);
diff --git a/drivers/clk/ti/gate.c b/drivers/clk/ti/gate.c
index b326d27..ff3380e 100644
--- a/drivers/clk/ti/gate.c
+++ b/drivers/clk/ti/gate.c
@@ -22,6 +22,8 @@
#include <linux/of_address.h>
#include <linux/clk/ti.h>
+#include "clock.h"
+
#define to_clk_divider(_hw) container_of(_hw, struct clk_divider, hw)
#undef pr_fmt
@@ -90,63 +92,159 @@ static int omap36xx_gate_clk_enable_with_hsdiv_restore(struct clk_hw *clk)
return ret;
}
-static void __init _of_ti_gate_clk_setup(struct device_node *node,
- const struct clk_ops *ops,
- const struct clk_hw_omap_ops *hw_ops)
+static struct clk *_register_gate(struct device *dev, const char *name,
+ const char *parent_name, unsigned long flags,
+ void __iomem *reg, u8 bit_idx,
+ u8 clk_gate_flags, const struct clk_ops *ops,
+ const struct clk_hw_omap_ops *hw_ops)
{
- struct clk *clk;
struct clk_init_data init = { NULL };
struct clk_hw_omap *clk_hw;
- const char *clk_name = node->name;
- const char *parent_name;
- u32 val;
+ struct clk *clk;
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
if (!clk_hw)
- return;
+ return ERR_PTR(-ENOMEM);
clk_hw->hw.init = &init;
- init.name = clk_name;
+ init.name = name;
init.ops = ops;
- if (ops != &omap_gate_clkdm_clk_ops) {
- clk_hw->enable_reg = ti_clk_get_reg_addr(node, 0);
- if (!clk_hw->enable_reg)
- goto cleanup;
+ clk_hw->enable_reg = reg;
+ clk_hw->enable_bit = bit_idx;
+ clk_hw->ops = hw_ops;
- if (!of_property_read_u32(node, "ti,bit-shift", &val))
- clk_hw->enable_bit = val;
+ clk_hw->flags = MEMMAP_ADDRESSING | clk_gate_flags;
+
+ init.parent_names = &parent_name;
+ init.num_parents = 1;
+
+ init.flags = flags;
+
+ clk = clk_register(NULL, &clk_hw->hw);
+
+ if (IS_ERR(clk))
+ kfree(clk_hw);
+
+ return clk;
+}
+
+struct clk *ti_clk_register_gate(struct ti_clk *setup)
+{
+ const struct clk_ops *ops = &omap_gate_clk_ops;
+ const struct clk_hw_omap_ops *hw_ops = NULL;
+ u32 reg;
+ struct clk_omap_reg *reg_setup;
+ u32 flags = 0;
+ u8 clk_gate_flags = 0;
+ struct ti_clk_gate *gate;
+
+ gate = setup->data;
+
+ reg_setup = (struct clk_omap_reg *)®
+
+ if (gate->flags & CLKF_SET_RATE_PARENT)
+ flags |= CLK_SET_RATE_PARENT;
+
+ if (gate->flags & CLKF_SET_BIT_TO_DISABLE)
+ clk_gate_flags |= INVERT_ENABLE;
+
+ if (gate->flags & CLKF_HSDIV) {
+ ops = &omap_gate_clk_hsdiv_restore_ops;
+ hw_ops = &clkhwops_wait;
}
- clk_hw->ops = hw_ops;
+ if (gate->flags & CLKF_DSS)
+ hw_ops = &clkhwops_omap3430es2_dss_usbhost_wait;
+
+ if (gate->flags & CLKF_WAIT)
+ hw_ops = &clkhwops_wait;
+
+ if (gate->flags & CLKF_CLKDM)
+ ops = &omap_gate_clkdm_clk_ops;
+
+ if (gate->flags & CLKF_AM35XX)
+ hw_ops = &clkhwops_am35xx_ipss_module_wait;
- clk_hw->flags = MEMMAP_ADDRESSING;
+ reg_setup->index = gate->module;
+ reg_setup->offset = gate->reg;
+
+ return _register_gate(NULL, setup->name, gate->parent, flags,
+ (void __iomem *)reg, gate->bit_shift,
+ clk_gate_flags, ops, hw_ops);
+}
+
+struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup)
+{
+ struct clk_hw_omap *gate;
+ struct clk_omap_reg *reg;
+ const struct clk_hw_omap_ops *ops = &clkhwops_wait;
+
+ if (!setup)
+ return NULL;
+
+ gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+ if (!gate)
+ return ERR_PTR(-ENOMEM);
+
+ reg = (struct clk_omap_reg *)&gate->enable_reg;
+ reg->index = setup->module;
+ reg->offset = setup->reg;
+
+ gate->enable_bit = setup->bit_shift;
+
+ if (setup->flags & CLKF_NO_WAIT)
+ ops = NULL;
+
+ if (setup->flags & CLKF_INTERFACE)
+ ops = &clkhwops_iclk_wait;
+
+ gate->ops = ops;
+ gate->flags = MEMMAP_ADDRESSING;
+
+ return &gate->hw;
+}
+
+static void __init _of_ti_gate_clk_setup(struct device_node *node,
+ const struct clk_ops *ops,
+ const struct clk_hw_omap_ops *hw_ops)
+{
+ struct clk *clk;
+ const char *parent_name;
+ void __iomem *reg = NULL;
+ u8 enable_bit = 0;
+ u32 val;
+ u32 flags = 0;
+ u8 clk_gate_flags = 0;
+
+ if (ops != &omap_gate_clkdm_clk_ops) {
+ reg = ti_clk_get_reg_addr(node, 0);
+ if (!reg)
+ return;
+
+ if (!of_property_read_u32(node, "ti,bit-shift", &val))
+ enable_bit = val;
+ }
if (of_clk_get_parent_count(node) != 1) {
- pr_err("%s must have 1 parent\n", clk_name);
- goto cleanup;
+ pr_err("%s must have 1 parent\n", node->name);
+ return;
}
parent_name = of_clk_get_parent_name(node, 0);
- init.parent_names = &parent_name;
- init.num_parents = 1;
if (of_property_read_bool(node, "ti,set-rate-parent"))
- init.flags |= CLK_SET_RATE_PARENT;
+ flags |= CLK_SET_RATE_PARENT;
if (of_property_read_bool(node, "ti,set-bit-to-disable"))
- clk_hw->flags |= INVERT_ENABLE;
+ clk_gate_flags |= INVERT_ENABLE;
- clk = clk_register(NULL, &clk_hw->hw);
+ clk = _register_gate(NULL, node->name, parent_name, flags, reg,
+ enable_bit, clk_gate_flags, ops, hw_ops);
- if (!IS_ERR(clk)) {
+ if (!IS_ERR(clk))
of_clk_add_provider(node, of_clk_src_simple_get, clk);
- return;
- }
-
-cleanup:
- kfree(clk_hw);
}
static void __init
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 04/11] clk: ti: interface: add support for legacy interface clock init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (2 preceding siblings ...)
2014-12-16 16:20 ` [PATCH 03/11] clk: ti: gate: add support for legacy gate init Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 05/11] clk: ti: divider: add support for legacy divider init Tero Kristo
` (6 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data is initialized slightly differently compared to
DT clocks, thus add support for this. The interface clock descriptor
itself is overloading the gate clock descriptor, thus it needs to
be called from the gate setup.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/clk/ti/clock.h | 1 +
drivers/clk/ti/gate.c | 3 ++
drivers/clk/ti/interface.c | 96 +++++++++++++++++++++++++++++++++-----------
3 files changed, 76 insertions(+), 24 deletions(-)
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index d0715bc..9430dc6 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -154,6 +154,7 @@ struct ti_clk_dpll {
};
struct clk *ti_clk_register_gate(struct ti_clk *setup);
+struct clk *ti_clk_register_interface(struct ti_clk *setup);
struct clk *ti_clk_register_mux(struct ti_clk *setup);
struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup);
diff --git a/drivers/clk/ti/gate.c b/drivers/clk/ti/gate.c
index ff3380e..d4f6cb2 100644
--- a/drivers/clk/ti/gate.c
+++ b/drivers/clk/ti/gate.c
@@ -142,6 +142,9 @@ struct clk *ti_clk_register_gate(struct ti_clk *setup)
gate = setup->data;
+ if (gate->flags & CLKF_INTERFACE)
+ return ti_clk_register_interface(setup);
+
reg_setup = (struct clk_omap_reg *)®
if (gate->flags & CLKF_SET_RATE_PARENT)
diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c
index 9c3e8c4..d71cd9b 100644
--- a/drivers/clk/ti/interface.c
+++ b/drivers/clk/ti/interface.c
@@ -20,6 +20,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk/ti.h>
+#include "clock.h"
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -31,53 +32,100 @@ static const struct clk_ops ti_interface_clk_ops = {
.is_enabled = &omap2_dflt_clk_is_enabled,
};
-static void __init _of_ti_interface_clk_setup(struct device_node *node,
- const struct clk_hw_omap_ops *ops)
+static struct clk *_register_interface(struct device *dev, const char *name,
+ const char *parent_name,
+ void __iomem *reg, u8 bit_idx,
+ const struct clk_hw_omap_ops *ops)
{
- struct clk *clk;
struct clk_init_data init = { NULL };
struct clk_hw_omap *clk_hw;
- const char *parent_name;
- u32 val;
+ struct clk *clk;
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
if (!clk_hw)
- return;
+ return ERR_PTR(-ENOMEM);
clk_hw->hw.init = &init;
clk_hw->ops = ops;
clk_hw->flags = MEMMAP_ADDRESSING;
+ clk_hw->enable_reg = reg;
+ clk_hw->enable_bit = bit_idx;
- clk_hw->enable_reg = ti_clk_get_reg_addr(node, 0);
- if (!clk_hw->enable_reg)
- goto cleanup;
-
- if (!of_property_read_u32(node, "ti,bit-shift", &val))
- clk_hw->enable_bit = val;
-
- init.name = node->name;
+ init.name = name;
init.ops = &ti_interface_clk_ops;
init.flags = 0;
- parent_name = of_clk_get_parent_name(node, 0);
- if (!parent_name) {
- pr_err("%s must have a parent\n", node->name);
- goto cleanup;
- }
-
init.num_parents = 1;
init.parent_names = &parent_name;
clk = clk_register(NULL, &clk_hw->hw);
- if (!IS_ERR(clk)) {
- of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ if (IS_ERR(clk))
+ kfree(clk_hw);
+ else
omap2_init_clk_hw_omap_clocks(clk);
+
+ return clk;
+}
+
+struct clk *ti_clk_register_interface(struct ti_clk *setup)
+{
+ const struct clk_hw_omap_ops *ops = &clkhwops_iclk_wait;
+ u32 reg;
+ struct clk_omap_reg *reg_setup;
+ struct ti_clk_gate *gate;
+
+ gate = setup->data;
+ reg_setup = (struct clk_omap_reg *)®
+ reg_setup->index = gate->module;
+ reg_setup->offset = gate->reg;
+
+ if (gate->flags & CLKF_NO_WAIT)
+ ops = &clkhwops_iclk;
+
+ if (gate->flags & CLKF_HSOTGUSB)
+ ops = &clkhwops_omap3430es2_iclk_hsotgusb_wait;
+
+ if (gate->flags & CLKF_DSS)
+ ops = &clkhwops_omap3430es2_iclk_dss_usbhost_wait;
+
+ if (gate->flags & CLKF_SSI)
+ ops = &clkhwops_omap3430es2_iclk_ssi_wait;
+
+ if (gate->flags & CLKF_AM35XX)
+ ops = &clkhwops_am35xx_ipss_wait;
+
+ return _register_interface(NULL, setup->name, gate->parent,
+ (void __iomem *)reg, gate->bit_shift, ops);
+}
+
+static void __init _of_ti_interface_clk_setup(struct device_node *node,
+ const struct clk_hw_omap_ops *ops)
+{
+ struct clk *clk;
+ const char *parent_name;
+ void __iomem *reg;
+ u8 enable_bit = 0;
+ u32 val;
+
+ reg = ti_clk_get_reg_addr(node, 0);
+ if (!reg)
+ return;
+
+ if (!of_property_read_u32(node, "ti,bit-shift", &val))
+ enable_bit = val;
+
+ parent_name = of_clk_get_parent_name(node, 0);
+ if (!parent_name) {
+ pr_err("%s must have a parent\n", node->name);
return;
}
-cleanup:
- kfree(clk_hw);
+ clk = _register_interface(NULL, node->name, parent_name, reg,
+ enable_bit, ops);
+
+ if (!IS_ERR(clk))
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
}
static void __init of_ti_interface_clk_setup(struct device_node *node)
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 05/11] clk: ti: divider: add support for legacy divider init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (3 preceding siblings ...)
2014-12-16 16:20 ` [PATCH 04/11] clk: ti: interface: add support for legacy interface clock init Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 06/11] clk: ti: dpll: add support for legacy DPLL init Tero Kristo
` (5 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data is initialized slightly differently compared to
DT clocks, thus add support for this.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/clk/ti/clk.c | 3 ++
drivers/clk/ti/clock.h | 2 +
drivers/clk/ti/divider.c | 132 +++++++++++++++++++++++++++++++++++++++++++++-
3 files changed, 136 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 676dbf1..a0475e2 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -214,6 +214,9 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
case TI_CLK_MUX:
clk = ti_clk_register_mux(setup);
break;
+ case TI_CLK_DIVIDER:
+ clk = ti_clk_register_divider(setup);
+ break;
case TI_CLK_FIXED_FACTOR:
fixed_factor = setup->data;
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 9430dc6..fe70941 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -156,7 +156,9 @@ struct ti_clk_dpll {
struct clk *ti_clk_register_gate(struct ti_clk *setup);
struct clk *ti_clk_register_interface(struct ti_clk *setup);
struct clk *ti_clk_register_mux(struct ti_clk *setup);
+struct clk *ti_clk_register_divider(struct ti_clk *setup);
+struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup);
struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup);
struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup);
diff --git a/drivers/clk/ti/divider.c b/drivers/clk/ti/divider.c
index bff2b5b..6211893 100644
--- a/drivers/clk/ti/divider.c
+++ b/drivers/clk/ti/divider.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk/ti.h>
+#include "clock.h"
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -301,6 +302,134 @@ static struct clk *_register_divider(struct device *dev, const char *name,
}
static struct clk_div_table *
+_get_div_table_from_setup(struct ti_clk_divider *setup, u8 *width)
+{
+ int valid_div = 0;
+ struct clk_div_table *table;
+ int i;
+ int div;
+ u32 val;
+ u8 flags;
+
+ if (!setup->num_dividers) {
+ /* Clk divider table not provided, determine min/max divs */
+ flags = setup->flags;
+
+ if (flags & CLKF_INDEX_STARTS_AT_ONE)
+ val = 1;
+ else
+ val = 0;
+
+ div = 1;
+
+ while (div < setup->max_div) {
+ if (flags & CLKF_INDEX_POWER_OF_TWO)
+ div <<= 1;
+ else
+ div++;
+ val++;
+ }
+
+ *width = fls(val);
+
+ return NULL;
+ }
+
+ for (i = 0; i < setup->num_dividers; i++)
+ if (setup->dividers[i])
+ valid_div++;
+
+ table = kzalloc(sizeof(*table) * (valid_div + 1), GFP_KERNEL);
+ if (!table)
+ return ERR_PTR(-ENOMEM);
+
+ valid_div = 0;
+ *width = 0;
+
+ for (i = 0; i < setup->num_dividers; i++)
+ if (setup->dividers[i]) {
+ table[valid_div].div = setup->dividers[i];
+ table[valid_div].val = i;
+ valid_div++;
+ *width = i;
+ }
+
+ *width = fls(*width);
+
+ return table;
+}
+
+struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup)
+{
+ struct clk_divider *div;
+ struct clk_omap_reg *reg;
+
+ if (!setup)
+ return NULL;
+
+ div = kzalloc(sizeof(*div), GFP_KERNEL);
+ if (!div)
+ return ERR_PTR(-ENOMEM);
+
+ reg = (struct clk_omap_reg *)&div->reg;
+ reg->index = setup->module;
+ reg->offset = setup->reg;
+
+ if (setup->flags & CLKF_INDEX_STARTS_AT_ONE)
+ div->flags |= CLK_DIVIDER_ONE_BASED;
+
+ if (setup->flags & CLKF_INDEX_POWER_OF_TWO)
+ div->flags |= CLK_DIVIDER_POWER_OF_TWO;
+
+ div->table = _get_div_table_from_setup(setup, &div->width);
+
+ div->shift = setup->bit_shift;
+
+ return &div->hw;
+}
+
+struct clk *ti_clk_register_divider(struct ti_clk *setup)
+{
+ struct ti_clk_divider *div;
+ struct clk_omap_reg *reg_setup;
+ u32 reg;
+ u8 width;
+ u32 flags = 0;
+ u8 div_flags = 0;
+ struct clk_div_table *table;
+ struct clk *clk;
+
+ div = setup->data;
+
+ reg_setup = (struct clk_omap_reg *)®
+
+ reg_setup->index = div->module;
+ reg_setup->offset = div->reg;
+
+ if (div->flags & CLKF_INDEX_STARTS_AT_ONE)
+ div_flags |= CLK_DIVIDER_ONE_BASED;
+
+ if (div->flags & CLKF_INDEX_POWER_OF_TWO)
+ div_flags |= CLK_DIVIDER_POWER_OF_TWO;
+
+ if (div->flags & CLKF_SET_RATE_PARENT)
+ flags |= CLK_SET_RATE_PARENT;
+
+ table = _get_div_table_from_setup(div, &width);
+ if (IS_ERR(table))
+ return (struct clk *)table;
+
+ clk = _register_divider(NULL, setup->name, div->parent,
+ flags, (void __iomem *)reg, div->bit_shift,
+ width, div_flags, table, NULL);
+
+ if (IS_ERR(clk))
+ kfree(table);
+
+ return clk;
+}
+
+static struct clk_div_table *
__init ti_clk_get_div_table(struct device_node *node)
{
struct clk_div_table *table;
@@ -455,7 +584,8 @@ static void __init of_ti_divider_clk_setup(struct device_node *node)
goto cleanup;
clk = _register_divider(NULL, node->name, parent_name, flags, reg,
- shift, width, clk_divider_flags, table, NULL);
+ shift, width, clk_divider_flags, table,
+ NULL);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 06/11] clk: ti: dpll: add support for legacy DPLL init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (4 preceding siblings ...)
2014-12-16 16:20 ` [PATCH 05/11] clk: ti: divider: add support for legacy divider init Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 07/11] clk: ti: composite: add support for legacy composite clock init Tero Kristo
` (4 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data is initialized slightly differently compared to
DT clocks, thus add support for this.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/clk/ti/clk.c | 3 ++
drivers/clk/ti/clock.h | 1 +
drivers/clk/ti/dpll.c | 118 +++++++++++++++++++++++++++++++++++++++++++-----
3 files changed, 111 insertions(+), 11 deletions(-)
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index a0475e2..f41a757 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -228,6 +228,9 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
case TI_CLK_GATE:
clk = ti_clk_register_gate(setup);
break;
+ case TI_CLK_DPLL:
+ clk = ti_clk_register_dpll(setup);
+ break;
default:
pr_err("bad type for %s!\n", setup->name);
clk = ERR_PTR(-EINVAL);
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index fe70941..f4e8eb2 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -157,6 +157,7 @@ struct clk *ti_clk_register_gate(struct ti_clk *setup);
struct clk *ti_clk_register_interface(struct ti_clk *setup);
struct clk *ti_clk_register_mux(struct ti_clk *setup);
struct clk *ti_clk_register_divider(struct ti_clk *setup);
+struct clk *ti_clk_register_dpll(struct ti_clk *setup);
struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup);
struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup);
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index 79791e1..0693b8b 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk/ti.h>
+#include "clock.h"
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -115,7 +116,7 @@ static const struct clk_ops dpll_x2_ck_ops = {
};
/**
- * ti_clk_register_dpll - low level registration of a DPLL clock
+ * _register_dpll - low level registration of a DPLL clock
* @hw: hardware clock definition for the clock
* @node: device node for the clock
*
@@ -123,8 +124,8 @@ static const struct clk_ops dpll_x2_ck_ops = {
* clk-bypass is missing), the clock is added to retry list and
* the initialization is retried on later stage.
*/
-static void __init ti_clk_register_dpll(struct clk_hw *hw,
- struct device_node *node)
+static void __init _register_dpll(struct clk_hw *hw,
+ struct device_node *node)
{
struct clk_hw_omap *clk_hw = to_clk_hw_omap(hw);
struct dpll_data *dd = clk_hw->dpll_data;
@@ -136,7 +137,7 @@ static void __init ti_clk_register_dpll(struct clk_hw *hw,
if (IS_ERR(dd->clk_ref) || IS_ERR(dd->clk_bypass)) {
pr_debug("clk-ref or clk-bypass missing for %s, retry later\n",
node->name);
- if (!ti_clk_retry_init(node, hw, ti_clk_register_dpll))
+ if (!ti_clk_retry_init(node, hw, _register_dpll))
return;
goto cleanup;
@@ -160,20 +161,115 @@ cleanup:
kfree(clk_hw);
}
+void __iomem *_get_reg(u8 module, u16 offset)
+{
+ u32 reg;
+ struct clk_omap_reg *reg_setup;
+
+ reg_setup = (struct clk_omap_reg *)®
+
+ reg_setup->index = module;
+ reg_setup->offset = offset;
+
+ return (void __iomem *)reg;
+}
+
+struct clk *ti_clk_register_dpll(struct ti_clk *setup)
+{
+ struct clk_hw_omap *clk_hw;
+ struct clk_init_data init = { NULL };
+ struct dpll_data *dd;
+ struct clk *clk;
+ struct ti_clk_dpll *dpll;
+ const struct clk_ops *ops = &omap3_dpll_ck_ops;
+ struct clk *clk_ref;
+ struct clk *clk_bypass;
+
+ dpll = setup->data;
+
+ if (dpll->num_parents < 2)
+ return ERR_PTR(-EINVAL);
+
+ clk_ref = clk_get_sys(NULL, dpll->parents[0]);
+ clk_bypass = clk_get_sys(NULL, dpll->parents[1]);
+
+ if (IS_ERR_OR_NULL(clk_ref) || IS_ERR_OR_NULL(clk_bypass))
+ return ERR_PTR(-EAGAIN);
+
+ dd = kzalloc(sizeof(*dd), GFP_KERNEL);
+ clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
+ if (!dd || !clk_hw) {
+ clk = ERR_PTR(-ENOMEM);
+ goto cleanup;
+ }
+
+ clk_hw->dpll_data = dd;
+ clk_hw->ops = &clkhwops_omap3_dpll;
+ clk_hw->hw.init = &init;
+ clk_hw->flags = MEMMAP_ADDRESSING;
+
+ init.name = setup->name;
+ init.ops = ops;
+
+ init.num_parents = dpll->num_parents;
+ init.parent_names = dpll->parents;
+
+ dd->control_reg = _get_reg(dpll->module, dpll->control_reg);
+ dd->idlest_reg = _get_reg(dpll->module, dpll->idlest_reg);
+ dd->mult_div1_reg = _get_reg(dpll->module, dpll->mult_div1_reg);
+ dd->autoidle_reg = _get_reg(dpll->module, dpll->autoidle_reg);
+
+ dd->modes = dpll->modes;
+ dd->div1_mask = dpll->div1_mask;
+ dd->idlest_mask = dpll->idlest_mask;
+ dd->mult_mask = dpll->mult_mask;
+ dd->autoidle_mask = dpll->autoidle_mask;
+ dd->enable_mask = dpll->enable_mask;
+ dd->sddiv_mask = dpll->sddiv_mask;
+ dd->dco_mask = dpll->dco_mask;
+ dd->max_divider = dpll->max_divider;
+ dd->max_multiplier = dpll->max_multiplier;
+ dd->auto_recal_bit = dpll->auto_recal_bit;
+ dd->recal_en_bit = dpll->recal_en_bit;
+ dd->recal_st_bit = dpll->recal_st_bit;
+
+ dd->clk_ref = clk_ref;
+ dd->clk_bypass = clk_bypass;
+
+ if (dpll->flags & CLKF_CORE)
+ ops = &omap3_dpll_core_ck_ops;
+
+ if (dpll->flags & CLKF_PER)
+ ops = &omap3_dpll_per_ck_ops;
+
+ if (dpll->flags & CLKF_J_TYPE)
+ dd->flags |= DPLL_J_TYPE;
+
+ clk = clk_register(NULL, &clk_hw->hw);
+
+ if (!IS_ERR(clk))
+ return clk;
+
+cleanup:
+ kfree(dd);
+ kfree(clk_hw);
+ return clk;
+}
+
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX) || \
defined(CONFIG_SOC_AM43XX)
/**
- * ti_clk_register_dpll_x2 - Registers a DPLLx2 clock
+ * _register_dpll_x2 - Registers a DPLLx2 clock
* @node: device node for this clock
* @ops: clk_ops for this clock
* @hw_ops: clk_hw_ops for this clock
*
* Initializes a DPLL x 2 clock from device tree data.
*/
-static void ti_clk_register_dpll_x2(struct device_node *node,
- const struct clk_ops *ops,
- const struct clk_hw_omap_ops *hw_ops)
+static void _register_dpll_x2(struct device_node *node,
+ const struct clk_ops *ops,
+ const struct clk_hw_omap_ops *hw_ops)
{
struct clk *clk;
struct clk_init_data init = { NULL };
@@ -303,7 +399,7 @@ static void __init of_ti_dpll_setup(struct device_node *node,
if (dpll_mode)
dd->modes = dpll_mode;
- ti_clk_register_dpll(&clk_hw->hw, node);
+ _register_dpll(&clk_hw->hw, node);
return;
cleanup:
@@ -317,7 +413,7 @@ cleanup:
defined(CONFIG_SOC_DRA7XX)
static void __init of_ti_omap4_dpll_x2_setup(struct device_node *node)
{
- ti_clk_register_dpll_x2(node, &dpll_x2_ck_ops, &clkhwops_omap4_dpllmx);
+ _register_dpll_x2(node, &dpll_x2_ck_ops, &clkhwops_omap4_dpllmx);
}
CLK_OF_DECLARE(ti_omap4_dpll_x2_clock, "ti,omap4-dpll-x2-clock",
of_ti_omap4_dpll_x2_setup);
@@ -326,7 +422,7 @@ CLK_OF_DECLARE(ti_omap4_dpll_x2_clock, "ti,omap4-dpll-x2-clock",
#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static void __init of_ti_am3_dpll_x2_setup(struct device_node *node)
{
- ti_clk_register_dpll_x2(node, &dpll_x2_ck_ops, NULL);
+ _register_dpll_x2(node, &dpll_x2_ck_ops, NULL);
}
CLK_OF_DECLARE(ti_am3_dpll_x2_clock, "ti,am3-dpll-x2-clock",
of_ti_am3_dpll_x2_setup);
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 07/11] clk: ti: composite: add support for legacy composite clock init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (5 preceding siblings ...)
2014-12-16 16:20 ` [PATCH 06/11] clk: ti: dpll: add support for legacy DPLL init Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 09/11] ARM: OMAP3: PRM: add support for legacy iomapping init Tero Kristo
` (3 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data is initialized slightly differently compared to
DT clocks, thus add support for this.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
drivers/clk/ti/clk.c | 3 +++
drivers/clk/ti/clock.h | 1 +
drivers/clk/ti/composite.c | 46 ++++++++++++++++++++++++++++++++++++++++----
3 files changed, 46 insertions(+), 4 deletions(-)
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index f41a757..546dae4 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -217,6 +217,9 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
case TI_CLK_DIVIDER:
clk = ti_clk_register_divider(setup);
break;
+ case TI_CLK_COMPOSITE:
+ clk = ti_clk_register_composite(setup);
+ break;
case TI_CLK_FIXED_FACTOR:
fixed_factor = setup->data;
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index f4e8eb2..8d9c603 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -157,6 +157,7 @@ struct clk *ti_clk_register_gate(struct ti_clk *setup);
struct clk *ti_clk_register_interface(struct ti_clk *setup);
struct clk *ti_clk_register_mux(struct ti_clk *setup);
struct clk *ti_clk_register_divider(struct ti_clk *setup);
+struct clk *ti_clk_register_composite(struct ti_clk *setup);
struct clk *ti_clk_register_dpll(struct ti_clk *setup);
struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup);
diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c
index 19d8980..3a9665f 100644
--- a/drivers/clk/ti/composite.c
+++ b/drivers/clk/ti/composite.c
@@ -23,6 +23,8 @@
#include <linux/clk/ti.h>
#include <linux/list.h>
+#include "clock.h"
+
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -116,8 +118,44 @@ static inline struct clk_hw *_get_hw(struct clk_hw_omap_comp *clk, int idx)
#define to_clk_hw_comp(_hw) container_of(_hw, struct clk_hw_omap_comp, hw)
-static void __init ti_clk_register_composite(struct clk_hw *hw,
- struct device_node *node)
+struct clk *ti_clk_register_composite(struct ti_clk *setup)
+{
+ struct ti_clk_composite *comp;
+ struct clk_hw *gate;
+ struct clk_hw *mux;
+ struct clk_hw *div;
+ int num_parents = 1;
+ const char **parent_names = NULL;
+ struct clk *clk;
+
+ comp = setup->data;
+
+ div = ti_clk_build_component_div(comp->divider);
+ gate = ti_clk_build_component_gate(comp->gate);
+ mux = ti_clk_build_component_mux(comp->mux);
+
+ if (div)
+ parent_names = &comp->divider->parent;
+
+ if (gate)
+ parent_names = &comp->gate->parent;
+
+ if (mux) {
+ num_parents = comp->mux->num_parents;
+ parent_names = comp->mux->parents;
+ }
+
+ clk = clk_register_composite(NULL, setup->name,
+ parent_names, num_parents, mux,
+ &ti_clk_mux_ops, div,
+ &ti_composite_divider_ops, gate,
+ &ti_composite_gate_ops, 0);
+
+ return clk;
+}
+
+static void __init _register_composite(struct clk_hw *hw,
+ struct device_node *node)
{
struct clk *clk;
struct clk_hw_omap_comp *cclk = to_clk_hw_comp(hw);
@@ -136,7 +174,7 @@ static void __init ti_clk_register_composite(struct clk_hw *hw,
pr_debug("component %s not ready for %s, retry\n",
cclk->comp_nodes[i]->name, node->name);
if (!ti_clk_retry_init(node, hw,
- ti_clk_register_composite))
+ _register_composite))
return;
goto cleanup;
@@ -216,7 +254,7 @@ static void __init of_ti_composite_clk_setup(struct device_node *node)
for (i = 0; i < num_clks; i++)
cclk->comp_nodes[i] = _get_component_node(node, i);
- ti_clk_register_composite(&cclk->hw, node);
+ _register_composite(&cclk->hw, node);
}
CLK_OF_DECLARE(ti_composite_clock, "ti,composite-clock",
of_ti_composite_clk_setup);
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 09/11] ARM: OMAP3: PRM: add support for legacy iomapping init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (6 preceding siblings ...)
2014-12-16 16:20 ` [PATCH 07/11] clk: ti: composite: add support for legacy composite clock init Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2014-12-16 16:20 ` [PATCH 10/11] ARM: OMAP3: use clock data from TI clock driver for legacy boot Tero Kristo
` (2 subsequent siblings)
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
As the legacy clock data is being moved under clock driver, the
clock data will be using the same low level infrastructure for
register accesses. This requires the clk_memmaps to be initialized
properly. This patch adds a support hook to the PRM driver to
initialize the mappings.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
arch/arm/mach-omap2/prm.h | 1 +
arch/arm/mach-omap2/prm_common.c | 11 +++++++++++
2 files changed, 12 insertions(+)
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 48480d5..a33303c 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -20,6 +20,7 @@ extern void __iomem *prm_base;
extern u16 prm_features;
extern void omap2_set_globals_prm(void __iomem *prm);
int of_prcm_init(void);
+void omap3_prcm_legacy_iomaps_init(void);
# endif
/*
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index ee2b522..18f8bac 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -35,6 +35,8 @@
#include "prm44xx.h"
#include "common.h"
#include "clock.h"
+#include "cm.h"
+#include "control.h"
/*
* OMAP_PRCM_MAX_NR_PENDING_REG: maximum number of PRM_IRQ*_MPU regs
@@ -528,6 +530,15 @@ int __init of_prcm_init(void)
return 0;
}
+void __init omap3_prcm_legacy_iomaps_init(void)
+{
+ ti_clk_ll_ops = &omap_clk_ll_ops;
+
+ clk_memmaps[TI_CLKM_CM] = cm_base + OMAP3430_IVA2_MOD;
+ clk_memmaps[TI_CLKM_PRM] = prm_base + OMAP3430_IVA2_MOD;
+ clk_memmaps[TI_CLKM_SCRM] = omap_ctrl_base_get();
+}
+
static int __init prm_late_init(void)
{
if (prm_ll_data->late_init)
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 10/11] ARM: OMAP3: use clock data from TI clock driver for legacy boot
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (7 preceding siblings ...)
2014-12-16 16:20 ` [PATCH 09/11] ARM: OMAP3: PRM: add support for legacy iomapping init Tero Kristo
@ 2014-12-16 16:20 ` Tero Kristo
2015-01-07 23:00 ` [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tony Lindgren
2015-01-29 20:24 ` [PATCHv2 06/11] clk: ti: dpll: add support for legacy DPLL init Tero Kristo
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2014-12-16 16:20 UTC (permalink / raw)
To: linux-arm-kernel
As the clock data is now available for the legacy boot also from the
clock driver, use this rather than the data under the mach folder.
This allows us to get rid of the old clock data completely.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
arch/arm/mach-omap2/io.c | 28 +++++++++++++++++++---------
1 file changed, 19 insertions(+), 9 deletions(-)
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 03cbb16..7295943 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -459,7 +459,17 @@ void __init omap3_init_early(void)
omap3xxx_clockdomains_init();
omap3xxx_hwmod_init();
omap_hwmod_init_postsetup();
- omap_clk_soc_init = omap3xxx_clk_init;
+ if (!of_have_populated_dt()) {
+ omap3_prcm_legacy_iomaps_init();
+ if (soc_is_am35xx())
+ omap_clk_soc_init = am35xx_clk_legacy_init;
+ else if (cpu_is_omap3630())
+ omap_clk_soc_init = omap36xx_clk_legacy_init;
+ else if (omap_rev() == OMAP3430_REV_ES1_0)
+ omap_clk_soc_init = omap3430es1_clk_legacy_init;
+ else
+ omap_clk_soc_init = omap3430_clk_legacy_init;
+ }
}
void __init omap3430_init_early(void)
@@ -507,8 +517,6 @@ void __init ti81xx_init_early(void)
omap_hwmod_init_postsetup();
if (of_have_populated_dt())
omap_clk_soc_init = ti81xx_dt_clk_init;
- else
- omap_clk_soc_init = omap3xxx_clk_init;
}
void __init omap3_init_late(void)
@@ -722,15 +730,17 @@ int __init omap_clk_init(void)
ti_clk_init_features();
- ret = of_prcm_init();
- if (ret)
- return ret;
+ if (of_have_populated_dt()) {
+ ret = of_prcm_init();
+ if (ret)
+ return ret;
- of_clk_init(NULL);
+ of_clk_init(NULL);
- ti_dt_clk_init_retry_clks();
+ ti_dt_clk_init_retry_clks();
- ti_dt_clockdomains_setup();
+ ti_dt_clockdomains_setup();
+ }
ret = omap_clk_soc_init();
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (8 preceding siblings ...)
2014-12-16 16:20 ` [PATCH 10/11] ARM: OMAP3: use clock data from TI clock driver for legacy boot Tero Kristo
@ 2015-01-07 23:00 ` Tony Lindgren
2015-01-29 20:19 ` Tero Kristo
2015-02-03 16:59 ` Arnd Bergmann
2015-01-29 20:24 ` [PATCHv2 06/11] clk: ti: dpll: add support for legacy DPLL init Tero Kristo
10 siblings, 2 replies; 19+ messages in thread
From: Tony Lindgren @ 2015-01-07 23:00 UTC (permalink / raw)
To: linux-arm-kernel
* Tero Kristo <t-kristo@ti.com> [141216 08:22]:
> Hi,
>
> These patches move the legacy clock data for omap3 under drivers/clk/ti.
> After these patches are applied, it should be possible to get rid of
> clk-private.h (long pending project for Mike.)
>
> Testing done (on top of 3.18-rc1):
>
> omap3-beagle: boot / suspend-resume (ret/off) / cpuidle (ret/off)
> omap3-beagle-xm: boot upto fs mount (see note below)
> sdp3430: boot
> n900: boot
>
> Note: beagle-xm failed with FS mount on the board I have access to, but
> this happens with clean 3.18-rc1 and linux-next also at the moment.
> The board has probably corrupted filesystem image but I am unable
> to fix this atm (remote board.)
>
> Test branch:
> tree: https://github.com/t-kristo/linux-pm.git
> branch: 3.18-rc1-omap3-clk-rework
Great, hopefully this will finally allow Mike to make the
generic struct clk private to drivers/clk :)
Seems to boot just fine based on a quick legacy booting test
on n900.
Mike, assuming no other issues, can you please apply these into a
immutable branch against v3.19-rc1 that Paul and I can also merge
in as needed?
Please also feel free to add:
Acked-by: Tony Lindgren <tony@atomide.com>
^ permalink raw reply [flat|nested] 19+ messages in thread* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2015-01-07 23:00 ` [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tony Lindgren
@ 2015-01-29 20:19 ` Tero Kristo
2015-01-30 0:42 ` Mike Turquette
2015-02-03 16:59 ` Arnd Bergmann
1 sibling, 1 reply; 19+ messages in thread
From: Tero Kristo @ 2015-01-29 20:19 UTC (permalink / raw)
To: linux-arm-kernel
On 01/08/2015 01:00 AM, Tony Lindgren wrote:
> * Tero Kristo <t-kristo@ti.com> [141216 08:22]:
>> Hi,
>>
>> These patches move the legacy clock data for omap3 under drivers/clk/ti.
>> After these patches are applied, it should be possible to get rid of
>> clk-private.h (long pending project for Mike.)
>>
>> Testing done (on top of 3.18-rc1):
>>
>> omap3-beagle: boot / suspend-resume (ret/off) / cpuidle (ret/off)
>> omap3-beagle-xm: boot upto fs mount (see note below)
>> sdp3430: boot
>> n900: boot
>>
>> Note: beagle-xm failed with FS mount on the board I have access to, but
>> this happens with clean 3.18-rc1 and linux-next also at the moment.
>> The board has probably corrupted filesystem image but I am unable
>> to fix this atm (remote board.)
>>
>> Test branch:
>> tree: https://github.com/t-kristo/linux-pm.git
>> branch: 3.18-rc1-omap3-clk-rework
>
> Great, hopefully this will finally allow Mike to make the
> generic struct clk private to drivers/clk :)
>
> Seems to boot just fine based on a quick legacy booting test
> on n900.
>
> Mike, assuming no other issues, can you please apply these into a
> immutable branch against v3.19-rc1 that Paul and I can also merge
> in as needed?
>
> Please also feel free to add:
>
> Acked-by: Tony Lindgren <tony@atomide.com>
>
I just rebased these patches on top of 3.19-rc1, and noticed a problem
with dpll5 on beagle-xm (basically a divide-by-zero error + locking
issue during boot.) The extra diff at the end of this email fixes the
problems, I will also send the updated two patches as v2. Updated branch
available in my tree under name 3.19-rc1-omap3-clk-rework.
- Tero
---------------------
diff --git a/drivers/clk/ti/clk-3xxx-legacy.c
b/drivers/clk/ti/clk-3xxx-legacy.c
index 81ad510..e0732a4 100644
--- a/drivers/clk/ti/clk-3xxx-legacy.c
+++ b/drivers/clk/ti/clk-3xxx-legacy.c
@@ -136,6 +136,7 @@ static struct ti_clk_dpll dpll3_ck_data = {
.idlest_mask = 0x1,
.auto_recal_bit = 0x3,
.max_divider = 0x80,
+ .min_divider = 0x1,
.recal_en_bit = 0x5,
.max_multiplier = 0x7ff,
.enable_mask = 0x7,
@@ -307,6 +308,7 @@ static struct ti_clk_dpll dpll4_ck_data = {
.idlest_mask = 0x2,
.auto_recal_bit = 0x13,
.max_divider = 0x80,
+ .min_divider = 0x1,
.recal_en_bit = 0x6,
.max_multiplier = 0x7ff,
.enable_mask = 0x70000,
@@ -507,6 +509,7 @@ static struct ti_clk_dpll dpll5_ck_data = {
.idlest_mask = 0x1,
.auto_recal_bit = 0x3,
.max_divider = 0x80,
+ .min_divider = 0x1,
.recal_en_bit = 0x19,
.max_multiplier = 0x7ff,
.enable_mask = 0x7,
@@ -1271,6 +1274,7 @@ static struct ti_clk_dpll dpll1_ck_data = {
.idlest_mask = 0x1,
.auto_recal_bit = 0x3,
.max_divider = 0x80,
+ .min_divider = 0x1,
.recal_en_bit = 0x7,
.max_multiplier = 0x7ff,
.enable_mask = 0x7,
@@ -2154,6 +2158,7 @@ static struct ti_clk_dpll dpll2_ck_data = {
.idlest_mask = 0x1,
.auto_recal_bit = 0x3,
.max_divider = 0x80,
+ .min_divider = 0x1,
.recal_en_bit = 0x8,
.max_multiplier = 0x7ff,
.enable_mask = 0x7,
@@ -2513,6 +2518,7 @@ static struct ti_clk_dpll dpll4_ck_omap36xx_data = {
.idlest_mask = 0x2,
.auto_recal_bit = 0x13,
.max_divider = 0x80,
+ .min_divider = 0x1,
.recal_en_bit = 0x6,
.max_multiplier = 0xfff,
.enable_mask = 0x70000,
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 8d9c603..404158d 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -148,6 +148,7 @@ struct ti_clk_dpll {
u32 sddiv_mask;
u16 max_multiplier;
u16 max_divider;
+ u8 min_divider;
u8 auto_recal_bit;
u8 recal_en_bit;
u8 recal_st_bit;
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index 7d67639..47ebff7 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c
@@ -243,6 +243,7 @@ struct clk *ti_clk_register_dpll(struct ti_clk *setup)
dd->sddiv_mask = dpll->sddiv_mask;
dd->dco_mask = dpll->dco_mask;
dd->max_divider = dpll->max_divider;
+ dd->min_divider = dpll->min_divider;
dd->max_multiplier = dpll->max_multiplier;
dd->auto_recal_bit = dpll->auto_recal_bit;
dd->recal_en_bit = dpll->recal_en_bit;
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2015-01-29 20:19 ` Tero Kristo
@ 2015-01-30 0:42 ` Mike Turquette
2015-01-30 15:20 ` Tero Kristo
0 siblings, 1 reply; 19+ messages in thread
From: Mike Turquette @ 2015-01-30 0:42 UTC (permalink / raw)
To: linux-arm-kernel
Quoting Tero Kristo (2015-01-29 12:19:29)
> On 01/08/2015 01:00 AM, Tony Lindgren wrote:
> > * Tero Kristo <t-kristo@ti.com> [141216 08:22]:
> >> Hi,
> >>
> >> These patches move the legacy clock data for omap3 under drivers/clk/ti.
> >> After these patches are applied, it should be possible to get rid of
> >> clk-private.h (long pending project for Mike.)
> >>
> >> Testing done (on top of 3.18-rc1):
> >>
> >> omap3-beagle: boot / suspend-resume (ret/off) / cpuidle (ret/off)
> >> omap3-beagle-xm: boot upto fs mount (see note below)
> >> sdp3430: boot
> >> n900: boot
> >>
> >> Note: beagle-xm failed with FS mount on the board I have access to, but
> >> this happens with clean 3.18-rc1 and linux-next also at the moment.
> >> The board has probably corrupted filesystem image but I am unable
> >> to fix this atm (remote board.)
> >>
> >> Test branch:
> >> tree: https://github.com/t-kristo/linux-pm.git
> >> branch: 3.18-rc1-omap3-clk-rework
> >
> > Great, hopefully this will finally allow Mike to make the
> > generic struct clk private to drivers/clk :)
> >
> > Seems to boot just fine based on a quick legacy booting test
> > on n900.
> >
> > Mike, assuming no other issues, can you please apply these into a
> > immutable branch against v3.19-rc1 that Paul and I can also merge
> > in as needed?
> >
> > Please also feel free to add:
> >
> > Acked-by: Tony Lindgren <tony@atomide.com>
> >
>
> I just rebased these patches on top of 3.19-rc1, and noticed a problem
> with dpll5 on beagle-xm (basically a divide-by-zero error + locking
> issue during boot.) The extra diff at the end of this email fixes the
> problems, I will also send the updated two patches as v2. Updated branch
> available in my tree under name 3.19-rc1-omap3-clk-rework.
I've applied these 11 patches on top of v3.19-rc1, including the two V2
patches for #6 and #8 to the clk-omap-legacy branch here:
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-omap-legacy
Let me know if I screwed anything up. I've merged this immutable branch
into clk-next.
In addition I've made some changes to remove clk-private.h permanently.
I'll post those later today. Again, please let me know if I screwed
anything up.
Regards,
Mike
>
> - Tero
>
> ---------------------
>
> diff --git a/drivers/clk/ti/clk-3xxx-legacy.c
> b/drivers/clk/ti/clk-3xxx-legacy.c
> index 81ad510..e0732a4 100644
> --- a/drivers/clk/ti/clk-3xxx-legacy.c
> +++ b/drivers/clk/ti/clk-3xxx-legacy.c
> @@ -136,6 +136,7 @@ static struct ti_clk_dpll dpll3_ck_data = {
> .idlest_mask = 0x1,
> .auto_recal_bit = 0x3,
> .max_divider = 0x80,
> + .min_divider = 0x1,
> .recal_en_bit = 0x5,
> .max_multiplier = 0x7ff,
> .enable_mask = 0x7,
> @@ -307,6 +308,7 @@ static struct ti_clk_dpll dpll4_ck_data = {
> .idlest_mask = 0x2,
> .auto_recal_bit = 0x13,
> .max_divider = 0x80,
> + .min_divider = 0x1,
> .recal_en_bit = 0x6,
> .max_multiplier = 0x7ff,
> .enable_mask = 0x70000,
> @@ -507,6 +509,7 @@ static struct ti_clk_dpll dpll5_ck_data = {
> .idlest_mask = 0x1,
> .auto_recal_bit = 0x3,
> .max_divider = 0x80,
> + .min_divider = 0x1,
> .recal_en_bit = 0x19,
> .max_multiplier = 0x7ff,
> .enable_mask = 0x7,
> @@ -1271,6 +1274,7 @@ static struct ti_clk_dpll dpll1_ck_data = {
> .idlest_mask = 0x1,
> .auto_recal_bit = 0x3,
> .max_divider = 0x80,
> + .min_divider = 0x1,
> .recal_en_bit = 0x7,
> .max_multiplier = 0x7ff,
> .enable_mask = 0x7,
> @@ -2154,6 +2158,7 @@ static struct ti_clk_dpll dpll2_ck_data = {
> .idlest_mask = 0x1,
> .auto_recal_bit = 0x3,
> .max_divider = 0x80,
> + .min_divider = 0x1,
> .recal_en_bit = 0x8,
> .max_multiplier = 0x7ff,
> .enable_mask = 0x7,
> @@ -2513,6 +2518,7 @@ static struct ti_clk_dpll dpll4_ck_omap36xx_data = {
> .idlest_mask = 0x2,
> .auto_recal_bit = 0x13,
> .max_divider = 0x80,
> + .min_divider = 0x1,
> .recal_en_bit = 0x6,
> .max_multiplier = 0xfff,
> .enable_mask = 0x70000,
> diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
> index 8d9c603..404158d 100644
> --- a/drivers/clk/ti/clock.h
> +++ b/drivers/clk/ti/clock.h
> @@ -148,6 +148,7 @@ struct ti_clk_dpll {
> u32 sddiv_mask;
> u16 max_multiplier;
> u16 max_divider;
> + u8 min_divider;
> u8 auto_recal_bit;
> u8 recal_en_bit;
> u8 recal_st_bit;
> diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
> index 7d67639..47ebff7 100644
> --- a/drivers/clk/ti/dpll.c
> +++ b/drivers/clk/ti/dpll.c
> @@ -243,6 +243,7 @@ struct clk *ti_clk_register_dpll(struct ti_clk *setup)
> dd->sddiv_mask = dpll->sddiv_mask;
> dd->dco_mask = dpll->dco_mask;
> dd->max_divider = dpll->max_divider;
> + dd->min_divider = dpll->min_divider;
> dd->max_multiplier = dpll->max_multiplier;
> dd->auto_recal_bit = dpll->auto_recal_bit;
> dd->recal_en_bit = dpll->recal_en_bit;
>
^ permalink raw reply [flat|nested] 19+ messages in thread* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2015-01-30 0:42 ` Mike Turquette
@ 2015-01-30 15:20 ` Tero Kristo
2015-01-30 18:45 ` Mike Turquette
0 siblings, 1 reply; 19+ messages in thread
From: Tero Kristo @ 2015-01-30 15:20 UTC (permalink / raw)
To: linux-arm-kernel
On 01/30/2015 02:42 AM, Mike Turquette wrote:
> Quoting Tero Kristo (2015-01-29 12:19:29)
>> On 01/08/2015 01:00 AM, Tony Lindgren wrote:
>>> * Tero Kristo <t-kristo@ti.com> [141216 08:22]:
>>>> Hi,
>>>>
>>>> These patches move the legacy clock data for omap3 under drivers/clk/ti.
>>>> After these patches are applied, it should be possible to get rid of
>>>> clk-private.h (long pending project for Mike.)
>>>>
>>>> Testing done (on top of 3.18-rc1):
>>>>
>>>> omap3-beagle: boot / suspend-resume (ret/off) / cpuidle (ret/off)
>>>> omap3-beagle-xm: boot upto fs mount (see note below)
>>>> sdp3430: boot
>>>> n900: boot
>>>>
>>>> Note: beagle-xm failed with FS mount on the board I have access to, but
>>>> this happens with clean 3.18-rc1 and linux-next also at the moment.
>>>> The board has probably corrupted filesystem image but I am unable
>>>> to fix this atm (remote board.)
>>>>
>>>> Test branch:
>>>> tree: https://github.com/t-kristo/linux-pm.git
>>>> branch: 3.18-rc1-omap3-clk-rework
>>>
>>> Great, hopefully this will finally allow Mike to make the
>>> generic struct clk private to drivers/clk :)
>>>
>>> Seems to boot just fine based on a quick legacy booting test
>>> on n900.
>>>
>>> Mike, assuming no other issues, can you please apply these into a
>>> immutable branch against v3.19-rc1 that Paul and I can also merge
>>> in as needed?
>>>
>>> Please also feel free to add:
>>>
>>> Acked-by: Tony Lindgren <tony@atomide.com>
>>>
>>
>> I just rebased these patches on top of 3.19-rc1, and noticed a problem
>> with dpll5 on beagle-xm (basically a divide-by-zero error + locking
>> issue during boot.) The extra diff at the end of this email fixes the
>> problems, I will also send the updated two patches as v2. Updated branch
>> available in my tree under name 3.19-rc1-omap3-clk-rework.
>
> I've applied these 11 patches on top of v3.19-rc1, including the two V2
> patches for #6 and #8 to the clk-omap-legacy branch here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-omap-legacy
>
> Let me know if I screwed anything up. I've merged this immutable branch
> into clk-next.
>
> In addition I've made some changes to remove clk-private.h permanently.
> I'll post those later today. Again, please let me know if I screwed
> anything up.
I can't see the clk-omap-legacy merged to clk-next so far, maybe you did
not push it yet? The branch itself is identical copy of mine, so can't
see any issues there so far.
-Tero
>
> Regards,
> Mike
>
>>
>> - Tero
>>
>> ---------------------
>>
>> diff --git a/drivers/clk/ti/clk-3xxx-legacy.c
>> b/drivers/clk/ti/clk-3xxx-legacy.c
>> index 81ad510..e0732a4 100644
>> --- a/drivers/clk/ti/clk-3xxx-legacy.c
>> +++ b/drivers/clk/ti/clk-3xxx-legacy.c
>> @@ -136,6 +136,7 @@ static struct ti_clk_dpll dpll3_ck_data = {
>> .idlest_mask = 0x1,
>> .auto_recal_bit = 0x3,
>> .max_divider = 0x80,
>> + .min_divider = 0x1,
>> .recal_en_bit = 0x5,
>> .max_multiplier = 0x7ff,
>> .enable_mask = 0x7,
>> @@ -307,6 +308,7 @@ static struct ti_clk_dpll dpll4_ck_data = {
>> .idlest_mask = 0x2,
>> .auto_recal_bit = 0x13,
>> .max_divider = 0x80,
>> + .min_divider = 0x1,
>> .recal_en_bit = 0x6,
>> .max_multiplier = 0x7ff,
>> .enable_mask = 0x70000,
>> @@ -507,6 +509,7 @@ static struct ti_clk_dpll dpll5_ck_data = {
>> .idlest_mask = 0x1,
>> .auto_recal_bit = 0x3,
>> .max_divider = 0x80,
>> + .min_divider = 0x1,
>> .recal_en_bit = 0x19,
>> .max_multiplier = 0x7ff,
>> .enable_mask = 0x7,
>> @@ -1271,6 +1274,7 @@ static struct ti_clk_dpll dpll1_ck_data = {
>> .idlest_mask = 0x1,
>> .auto_recal_bit = 0x3,
>> .max_divider = 0x80,
>> + .min_divider = 0x1,
>> .recal_en_bit = 0x7,
>> .max_multiplier = 0x7ff,
>> .enable_mask = 0x7,
>> @@ -2154,6 +2158,7 @@ static struct ti_clk_dpll dpll2_ck_data = {
>> .idlest_mask = 0x1,
>> .auto_recal_bit = 0x3,
>> .max_divider = 0x80,
>> + .min_divider = 0x1,
>> .recal_en_bit = 0x8,
>> .max_multiplier = 0x7ff,
>> .enable_mask = 0x7,
>> @@ -2513,6 +2518,7 @@ static struct ti_clk_dpll dpll4_ck_omap36xx_data = {
>> .idlest_mask = 0x2,
>> .auto_recal_bit = 0x13,
>> .max_divider = 0x80,
>> + .min_divider = 0x1,
>> .recal_en_bit = 0x6,
>> .max_multiplier = 0xfff,
>> .enable_mask = 0x70000,
>> diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
>> index 8d9c603..404158d 100644
>> --- a/drivers/clk/ti/clock.h
>> +++ b/drivers/clk/ti/clock.h
>> @@ -148,6 +148,7 @@ struct ti_clk_dpll {
>> u32 sddiv_mask;
>> u16 max_multiplier;
>> u16 max_divider;
>> + u8 min_divider;
>> u8 auto_recal_bit;
>> u8 recal_en_bit;
>> u8 recal_st_bit;
>> diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
>> index 7d67639..47ebff7 100644
>> --- a/drivers/clk/ti/dpll.c
>> +++ b/drivers/clk/ti/dpll.c
>> @@ -243,6 +243,7 @@ struct clk *ti_clk_register_dpll(struct ti_clk *setup)
>> dd->sddiv_mask = dpll->sddiv_mask;
>> dd->dco_mask = dpll->dco_mask;
>> dd->max_divider = dpll->max_divider;
>> + dd->min_divider = dpll->min_divider;
>> dd->max_multiplier = dpll->max_multiplier;
>> dd->auto_recal_bit = dpll->auto_recal_bit;
>> dd->recal_en_bit = dpll->recal_en_bit;
>>
^ permalink raw reply [flat|nested] 19+ messages in thread* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2015-01-30 15:20 ` Tero Kristo
@ 2015-01-30 18:45 ` Mike Turquette
0 siblings, 0 replies; 19+ messages in thread
From: Mike Turquette @ 2015-01-30 18:45 UTC (permalink / raw)
To: linux-arm-kernel
Quoting Tero Kristo (2015-01-30 07:20:36)
> On 01/30/2015 02:42 AM, Mike Turquette wrote:
> > Quoting Tero Kristo (2015-01-29 12:19:29)
> >> On 01/08/2015 01:00 AM, Tony Lindgren wrote:
> >>> * Tero Kristo <t-kristo@ti.com> [141216 08:22]:
> >>>> Hi,
> >>>>
> >>>> These patches move the legacy clock data for omap3 under drivers/clk/ti.
> >>>> After these patches are applied, it should be possible to get rid of
> >>>> clk-private.h (long pending project for Mike.)
> >>>>
> >>>> Testing done (on top of 3.18-rc1):
> >>>>
> >>>> omap3-beagle: boot / suspend-resume (ret/off) / cpuidle (ret/off)
> >>>> omap3-beagle-xm: boot upto fs mount (see note below)
> >>>> sdp3430: boot
> >>>> n900: boot
> >>>>
> >>>> Note: beagle-xm failed with FS mount on the board I have access to, but
> >>>> this happens with clean 3.18-rc1 and linux-next also at the moment.
> >>>> The board has probably corrupted filesystem image but I am unable
> >>>> to fix this atm (remote board.)
> >>>>
> >>>> Test branch:
> >>>> tree: https://github.com/t-kristo/linux-pm.git
> >>>> branch: 3.18-rc1-omap3-clk-rework
> >>>
> >>> Great, hopefully this will finally allow Mike to make the
> >>> generic struct clk private to drivers/clk :)
> >>>
> >>> Seems to boot just fine based on a quick legacy booting test
> >>> on n900.
> >>>
> >>> Mike, assuming no other issues, can you please apply these into a
> >>> immutable branch against v3.19-rc1 that Paul and I can also merge
> >>> in as needed?
> >>>
> >>> Please also feel free to add:
> >>>
> >>> Acked-by: Tony Lindgren <tony@atomide.com>
> >>>
> >>
> >> I just rebased these patches on top of 3.19-rc1, and noticed a problem
> >> with dpll5 on beagle-xm (basically a divide-by-zero error + locking
> >> issue during boot.) The extra diff at the end of this email fixes the
> >> problems, I will also send the updated two patches as v2. Updated branch
> >> available in my tree under name 3.19-rc1-omap3-clk-rework.
> >
> > I've applied these 11 patches on top of v3.19-rc1, including the two V2
> > patches for #6 and #8 to the clk-omap-legacy branch here:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-omap-legacy
> >
> > Let me know if I screwed anything up. I've merged this immutable branch
> > into clk-next.
> >
> > In addition I've made some changes to remove clk-private.h permanently.
> > I'll post those later today. Again, please let me know if I screwed
> > anything up.
>
> I can't see the clk-omap-legacy merged to clk-next so far, maybe you did
> not push it yet? The branch itself is identical copy of mine, so can't
> see any issues there so far.
That is correct. There are a lot of unrelated changes in clk-next right
now so I didn't push this OMAP stuff last night. Turns out to be a good
thing since linux-next had some breakage today. Once that is resolved
I'll push this out, but clk-omap-legacy IS merged locally in my tree,
just not on the public git that linux-next pulls.
Regards,
Mike
>
> -Tero
>
> >
> > Regards,
> > Mike
> >
> >>
> >> - Tero
> >>
> >> ---------------------
> >>
> >> diff --git a/drivers/clk/ti/clk-3xxx-legacy.c
> >> b/drivers/clk/ti/clk-3xxx-legacy.c
> >> index 81ad510..e0732a4 100644
> >> --- a/drivers/clk/ti/clk-3xxx-legacy.c
> >> +++ b/drivers/clk/ti/clk-3xxx-legacy.c
> >> @@ -136,6 +136,7 @@ static struct ti_clk_dpll dpll3_ck_data = {
> >> .idlest_mask = 0x1,
> >> .auto_recal_bit = 0x3,
> >> .max_divider = 0x80,
> >> + .min_divider = 0x1,
> >> .recal_en_bit = 0x5,
> >> .max_multiplier = 0x7ff,
> >> .enable_mask = 0x7,
> >> @@ -307,6 +308,7 @@ static struct ti_clk_dpll dpll4_ck_data = {
> >> .idlest_mask = 0x2,
> >> .auto_recal_bit = 0x13,
> >> .max_divider = 0x80,
> >> + .min_divider = 0x1,
> >> .recal_en_bit = 0x6,
> >> .max_multiplier = 0x7ff,
> >> .enable_mask = 0x70000,
> >> @@ -507,6 +509,7 @@ static struct ti_clk_dpll dpll5_ck_data = {
> >> .idlest_mask = 0x1,
> >> .auto_recal_bit = 0x3,
> >> .max_divider = 0x80,
> >> + .min_divider = 0x1,
> >> .recal_en_bit = 0x19,
> >> .max_multiplier = 0x7ff,
> >> .enable_mask = 0x7,
> >> @@ -1271,6 +1274,7 @@ static struct ti_clk_dpll dpll1_ck_data = {
> >> .idlest_mask = 0x1,
> >> .auto_recal_bit = 0x3,
> >> .max_divider = 0x80,
> >> + .min_divider = 0x1,
> >> .recal_en_bit = 0x7,
> >> .max_multiplier = 0x7ff,
> >> .enable_mask = 0x7,
> >> @@ -2154,6 +2158,7 @@ static struct ti_clk_dpll dpll2_ck_data = {
> >> .idlest_mask = 0x1,
> >> .auto_recal_bit = 0x3,
> >> .max_divider = 0x80,
> >> + .min_divider = 0x1,
> >> .recal_en_bit = 0x8,
> >> .max_multiplier = 0x7ff,
> >> .enable_mask = 0x7,
> >> @@ -2513,6 +2518,7 @@ static struct ti_clk_dpll dpll4_ck_omap36xx_data = {
> >> .idlest_mask = 0x2,
> >> .auto_recal_bit = 0x13,
> >> .max_divider = 0x80,
> >> + .min_divider = 0x1,
> >> .recal_en_bit = 0x6,
> >> .max_multiplier = 0xfff,
> >> .enable_mask = 0x70000,
> >> diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
> >> index 8d9c603..404158d 100644
> >> --- a/drivers/clk/ti/clock.h
> >> +++ b/drivers/clk/ti/clock.h
> >> @@ -148,6 +148,7 @@ struct ti_clk_dpll {
> >> u32 sddiv_mask;
> >> u16 max_multiplier;
> >> u16 max_divider;
> >> + u8 min_divider;
> >> u8 auto_recal_bit;
> >> u8 recal_en_bit;
> >> u8 recal_st_bit;
> >> diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
> >> index 7d67639..47ebff7 100644
> >> --- a/drivers/clk/ti/dpll.c
> >> +++ b/drivers/clk/ti/dpll.c
> >> @@ -243,6 +243,7 @@ struct clk *ti_clk_register_dpll(struct ti_clk *setup)
> >> dd->sddiv_mask = dpll->sddiv_mask;
> >> dd->dco_mask = dpll->dco_mask;
> >> dd->max_divider = dpll->max_divider;
> >> + dd->min_divider = dpll->min_divider;
> >> dd->max_multiplier = dpll->max_multiplier;
> >> dd->auto_recal_bit = dpll->auto_recal_bit;
> >> dd->recal_en_bit = dpll->recal_en_bit;
> >>
>
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2015-01-07 23:00 ` [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tony Lindgren
2015-01-29 20:19 ` Tero Kristo
@ 2015-02-03 16:59 ` Arnd Bergmann
2015-02-03 19:04 ` Tony Lindgren
1 sibling, 1 reply; 19+ messages in thread
From: Arnd Bergmann @ 2015-02-03 16:59 UTC (permalink / raw)
To: linux-arm-kernel
On Thursday 08 January 2015, Tony Lindgren wrote:
> Great, hopefully this will finally allow Mike to make the
> generic struct clk private to drivers/clk :)
>
> Seems to boot just fine based on a quick legacy booting test
> on n900.
>
> Mike, assuming no other issues, can you please apply these into a
> immutable branch against v3.19-rc1 that Paul and I can also merge
> in as needed?
>
> Please also feel free to add:
>
> Acked-by: Tony Lindgren <tony@atomide.com>
The series has arrived in linux-next and promptly triggered a few
randconfig build errors. Here is a patch that fixes it. Feel free
to replace it with a different patch if you don't like this version.
8<--------
Subject: clk: omap: compile legacy omap3 clocks conditionally
The 'ARM: OMAP3: legacy clock data move under clk driver' patch series
causes build errors when CONFIG_OMAP3 is not set:
drivers/clk/ti/dpll.c: In function 'ti_clk_register_dpll':
drivers/clk/ti/dpll.c:199:31: error: 'omap3_dpll_ck_ops' undeclared (first use in this function)
const struct clk_ops *ops = &omap3_dpll_ck_ops;
^
drivers/clk/ti/dpll.c:199:31: note: each undeclared identifier is reported only once for each function it appears in
drivers/clk/ti/dpll.c:259:10: error: 'omap3_dpll_per_ck_ops' undeclared (first use in this function)
ops = &omap3_dpll_per_ck_ops;
^
drivers/built-in.o: In function `ti_clk_register_gate':
drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_omap3430es2_dss_usbhost_wait'
drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_am35xx_ipss_module_wait'
-in.o: In function `ti_clk_register_interface':
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_hsotgusb_wait'
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_dss_usbhost_wait'
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_ssi_wait'
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_am35xx_ipss_wait'
drivers/built-in.o: In function `ti_clk_register_composite':
:(.text+0x3da768): undefined reference to `ti_clk_build_component_gate'
In order to fix that problem, this patch makes the omap3 legacy code
compiled only when both CONFIG_OMAP3 and CONFIG_ATAGS are set.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
----
diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
index 14e6686a5eea..105ffd0f5e79 100644
--- a/drivers/clk/ti/Makefile
+++ b/drivers/clk/ti/Makefile
@@ -1,4 +1,3 @@
-ifneq ($(CONFIG_OF),)
obj-y += clk.o autoidle.o clockdomain.o
clk-common = dpll.o composite.o divider.o gate.o \
fixed-factor.o mux.o apll.o
@@ -6,10 +5,13 @@ obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o
obj-$(CONFIG_SOC_TI81XX) += $(clk-common) fapll.o clk-816x.o
obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o
obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o \
- clk-3xxx.o clk-3xxx-legacy.o
+ clk-3xxx.o
obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o
obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o
obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o \
clk-dra7-atl.o
obj-$(CONFIG_SOC_AM43XX) += $(clk-common) clk-43xx.o
+
+ifdef CONFIG_ATAGS
+obj-$(CONFIG_ARCH_OMAP3) += clk-3xxx-legacy.o
endif
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 546dae405402..e22b95646e09 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -186,6 +186,7 @@ void ti_dt_clk_init_retry_clks(void)
}
}
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
void __init ti_clk_patch_legacy_clks(struct ti_clk **patch)
{
while (*patch) {
@@ -308,3 +309,4 @@ int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks)
return 0;
}
+#endif
diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c
index 3a9665fce041..3654f61912eb 100644
--- a/drivers/clk/ti/composite.c
+++ b/drivers/clk/ti/composite.c
@@ -118,6 +118,7 @@ static inline struct clk_hw *_get_hw(struct clk_hw_omap_comp *clk, int idx)
#define to_clk_hw_comp(_hw) container_of(_hw, struct clk_hw_omap_comp, hw)
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
struct clk *ti_clk_register_composite(struct ti_clk *setup)
{
struct ti_clk_composite *comp;
@@ -153,6 +154,7 @@ struct clk *ti_clk_register_composite(struct ti_clk *setup)
return clk;
}
+#endif
static void __init _register_composite(struct clk_hw *hw,
struct device_node *node)
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index 47ebff772b13..81dc4698dc41 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c
@@ -176,6 +176,7 @@ cleanup:
kfree(clk_hw);
}
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
void __iomem *_get_reg(u8 module, u16 offset)
{
u32 reg;
@@ -271,6 +272,7 @@ cleanup:
kfree(clk_hw);
return clk;
}
+#endif
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX) || \
diff --git a/drivers/clk/ti/gate.c b/drivers/clk/ti/gate.c
index d4f6cb20e16e..d493307b73f4 100644
--- a/drivers/clk/ti/gate.c
+++ b/drivers/clk/ti/gate.c
@@ -130,6 +130,7 @@ static struct clk *_register_gate(struct device *dev, const char *name,
return clk;
}
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
struct clk *ti_clk_register_gate(struct ti_clk *setup)
{
const struct clk_ops *ops = &omap_gate_clk_ops;
@@ -208,6 +209,7 @@ struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup)
return &gate->hw;
}
+#endif
static void __init _of_ti_gate_clk_setup(struct device_node *node,
const struct clk_ops *ops,
diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c
index d71cd9b5de46..265d91f071c5 100644
--- a/drivers/clk/ti/interface.c
+++ b/drivers/clk/ti/interface.c
@@ -68,6 +68,7 @@ static struct clk *_register_interface(struct device *dev, const char *name,
return clk;
}
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
struct clk *ti_clk_register_interface(struct ti_clk *setup)
{
const struct clk_hw_omap_ops *ops = &clkhwops_iclk_wait;
@@ -98,6 +99,7 @@ struct clk *ti_clk_register_interface(struct ti_clk *setup)
return _register_interface(NULL, setup->name, gate->parent,
(void __iomem *)reg, gate->bit_shift, ops);
}
+#endif
static void __init _of_ti_interface_clk_setup(struct device_node *node,
const struct clk_hw_omap_ops *ops)
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 0eac65054283..67844003493d 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -360,9 +360,17 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
+#ifdef CONFIG_ATAGS
int omap3430_clk_legacy_init(void);
int omap3430es1_clk_legacy_init(void);
int omap36xx_clk_legacy_init(void);
int am35xx_clk_legacy_init(void);
+#else
+static inline int omap3430_clk_legacy_init(void) { return -ENXIO; }
+static inline int omap3430es1_clk_legacy_init(void) { return -ENXIO; }
+static inline int omap36xx_clk_legacy_init(void) { return -ENXIO; }
+static inline int am35xx_clk_legacy_init(void) { return -ENXIO; }
+#endif
+
#endif
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2015-02-03 16:59 ` Arnd Bergmann
@ 2015-02-03 19:04 ` Tony Lindgren
2015-02-03 19:11 ` Mike Turquette
0 siblings, 1 reply; 19+ messages in thread
From: Tony Lindgren @ 2015-02-03 19:04 UTC (permalink / raw)
To: linux-arm-kernel
* Arnd Bergmann <arnd@arndb.de> [150203 09:03]:
> On Thursday 08 January 2015, Tony Lindgren wrote:
>
> > Great, hopefully this will finally allow Mike to make the
> > generic struct clk private to drivers/clk :)
> >
> > Seems to boot just fine based on a quick legacy booting test
> > on n900.
> >
> > Mike, assuming no other issues, can you please apply these into a
> > immutable branch against v3.19-rc1 that Paul and I can also merge
> > in as needed?
> >
> > Please also feel free to add:
> >
> > Acked-by: Tony Lindgren <tony@atomide.com>
>
> The series has arrived in linux-next and promptly triggered a few
> randconfig build errors. Here is a patch that fixes it. Feel free
> to replace it with a different patch if you don't like this version.
>
> 8<--------
> Subject: clk: omap: compile legacy omap3 clocks conditionally
>
> The 'ARM: OMAP3: legacy clock data move under clk driver' patch series
> causes build errors when CONFIG_OMAP3 is not set:
>
> drivers/clk/ti/dpll.c: In function 'ti_clk_register_dpll':
> drivers/clk/ti/dpll.c:199:31: error: 'omap3_dpll_ck_ops' undeclared (first use in this function)
> const struct clk_ops *ops = &omap3_dpll_ck_ops;
> ^
> drivers/clk/ti/dpll.c:199:31: note: each undeclared identifier is reported only once for each function it appears in
> drivers/clk/ti/dpll.c:259:10: error: 'omap3_dpll_per_ck_ops' undeclared (first use in this function)
> ops = &omap3_dpll_per_ck_ops;
> ^
>
> drivers/built-in.o: In function `ti_clk_register_gate':
> drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_omap3430es2_dss_usbhost_wait'
> drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_am35xx_ipss_module_wait'
> -in.o: In function `ti_clk_register_interface':
> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_hsotgusb_wait'
> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_dss_usbhost_wait'
> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_ssi_wait'
> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_am35xx_ipss_wait'
> drivers/built-in.o: In function `ti_clk_register_composite':
> :(.text+0x3da768): undefined reference to `ti_clk_build_component_gate'
>
> In order to fix that problem, this patch makes the omap3 legacy code
> compiled only when both CONFIG_OMAP3 and CONFIG_ATAGS are set.
Looks OK to me:
Acked-by: Tony Lindgren <tony@atomide.com>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ----
> diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
> index 14e6686a5eea..105ffd0f5e79 100644
> --- a/drivers/clk/ti/Makefile
> +++ b/drivers/clk/ti/Makefile
> @@ -1,4 +1,3 @@
> -ifneq ($(CONFIG_OF),)
> obj-y += clk.o autoidle.o clockdomain.o
> clk-common = dpll.o composite.o divider.o gate.o \
> fixed-factor.o mux.o apll.o
> @@ -6,10 +5,13 @@ obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o
> obj-$(CONFIG_SOC_TI81XX) += $(clk-common) fapll.o clk-816x.o
> obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o
> obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o \
> - clk-3xxx.o clk-3xxx-legacy.o
> + clk-3xxx.o
> obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o
> obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o
> obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o \
> clk-dra7-atl.o
> obj-$(CONFIG_SOC_AM43XX) += $(clk-common) clk-43xx.o
> +
> +ifdef CONFIG_ATAGS
> +obj-$(CONFIG_ARCH_OMAP3) += clk-3xxx-legacy.o
> endif
> diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
> index 546dae405402..e22b95646e09 100644
> --- a/drivers/clk/ti/clk.c
> +++ b/drivers/clk/ti/clk.c
> @@ -186,6 +186,7 @@ void ti_dt_clk_init_retry_clks(void)
> }
> }
>
> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
> void __init ti_clk_patch_legacy_clks(struct ti_clk **patch)
> {
> while (*patch) {
> @@ -308,3 +309,4 @@ int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks)
>
> return 0;
> }
> +#endif
> diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c
> index 3a9665fce041..3654f61912eb 100644
> --- a/drivers/clk/ti/composite.c
> +++ b/drivers/clk/ti/composite.c
> @@ -118,6 +118,7 @@ static inline struct clk_hw *_get_hw(struct clk_hw_omap_comp *clk, int idx)
>
> #define to_clk_hw_comp(_hw) container_of(_hw, struct clk_hw_omap_comp, hw)
>
> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
> struct clk *ti_clk_register_composite(struct ti_clk *setup)
> {
> struct ti_clk_composite *comp;
> @@ -153,6 +154,7 @@ struct clk *ti_clk_register_composite(struct ti_clk *setup)
>
> return clk;
> }
> +#endif
>
> static void __init _register_composite(struct clk_hw *hw,
> struct device_node *node)
> diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
> index 47ebff772b13..81dc4698dc41 100644
> --- a/drivers/clk/ti/dpll.c
> +++ b/drivers/clk/ti/dpll.c
> @@ -176,6 +176,7 @@ cleanup:
> kfree(clk_hw);
> }
>
> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
> void __iomem *_get_reg(u8 module, u16 offset)
> {
> u32 reg;
> @@ -271,6 +272,7 @@ cleanup:
> kfree(clk_hw);
> return clk;
> }
> +#endif
>
> #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
> defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX) || \
> diff --git a/drivers/clk/ti/gate.c b/drivers/clk/ti/gate.c
> index d4f6cb20e16e..d493307b73f4 100644
> --- a/drivers/clk/ti/gate.c
> +++ b/drivers/clk/ti/gate.c
> @@ -130,6 +130,7 @@ static struct clk *_register_gate(struct device *dev, const char *name,
> return clk;
> }
>
> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
> struct clk *ti_clk_register_gate(struct ti_clk *setup)
> {
> const struct clk_ops *ops = &omap_gate_clk_ops;
> @@ -208,6 +209,7 @@ struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup)
>
> return &gate->hw;
> }
> +#endif
>
> static void __init _of_ti_gate_clk_setup(struct device_node *node,
> const struct clk_ops *ops,
> diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c
> index d71cd9b5de46..265d91f071c5 100644
> --- a/drivers/clk/ti/interface.c
> +++ b/drivers/clk/ti/interface.c
> @@ -68,6 +68,7 @@ static struct clk *_register_interface(struct device *dev, const char *name,
> return clk;
> }
>
> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
> struct clk *ti_clk_register_interface(struct ti_clk *setup)
> {
> const struct clk_hw_omap_ops *ops = &clkhwops_iclk_wait;
> @@ -98,6 +99,7 @@ struct clk *ti_clk_register_interface(struct ti_clk *setup)
> return _register_interface(NULL, setup->name, gate->parent,
> (void __iomem *)reg, gate->bit_shift, ops);
> }
> +#endif
>
> static void __init _of_ti_interface_clk_setup(struct device_node *node,
> const struct clk_hw_omap_ops *ops)
> diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
> index 0eac65054283..67844003493d 100644
> --- a/include/linux/clk/ti.h
> +++ b/include/linux/clk/ti.h
> @@ -360,9 +360,17 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
> extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
> extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
>
> +#ifdef CONFIG_ATAGS
> int omap3430_clk_legacy_init(void);
> int omap3430es1_clk_legacy_init(void);
> int omap36xx_clk_legacy_init(void);
> int am35xx_clk_legacy_init(void);
> +#else
> +static inline int omap3430_clk_legacy_init(void) { return -ENXIO; }
> +static inline int omap3430es1_clk_legacy_init(void) { return -ENXIO; }
> +static inline int omap36xx_clk_legacy_init(void) { return -ENXIO; }
> +static inline int am35xx_clk_legacy_init(void) { return -ENXIO; }
> +#endif
> +
>
> #endif
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 19+ messages in thread* [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver
2015-02-03 19:04 ` Tony Lindgren
@ 2015-02-03 19:11 ` Mike Turquette
0 siblings, 0 replies; 19+ messages in thread
From: Mike Turquette @ 2015-02-03 19:11 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Feb 3, 2015 at 11:04 AM, Tony Lindgren <tony@atomide.com> wrote:
> * Arnd Bergmann <arnd@arndb.de> [150203 09:03]:
>> On Thursday 08 January 2015, Tony Lindgren wrote:
>>
>> > Great, hopefully this will finally allow Mike to make the
>> > generic struct clk private to drivers/clk :)
>> >
>> > Seems to boot just fine based on a quick legacy booting test
>> > on n900.
>> >
>> > Mike, assuming no other issues, can you please apply these into a
>> > immutable branch against v3.19-rc1 that Paul and I can also merge
>> > in as needed?
>> >
>> > Please also feel free to add:
>> >
>> > Acked-by: Tony Lindgren <tony@atomide.com>
>>
>> The series has arrived in linux-next and promptly triggered a few
>> randconfig build errors. Here is a patch that fixes it. Feel free
>> to replace it with a different patch if you don't like this version.
>>
>> 8<--------
>> Subject: clk: omap: compile legacy omap3 clocks conditionally
>>
>> The 'ARM: OMAP3: legacy clock data move under clk driver' patch series
>> causes build errors when CONFIG_OMAP3 is not set:
>>
>> drivers/clk/ti/dpll.c: In function 'ti_clk_register_dpll':
>> drivers/clk/ti/dpll.c:199:31: error: 'omap3_dpll_ck_ops' undeclared (first use in this function)
>> const struct clk_ops *ops = &omap3_dpll_ck_ops;
>> ^
>> drivers/clk/ti/dpll.c:199:31: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/clk/ti/dpll.c:259:10: error: 'omap3_dpll_per_ck_ops' undeclared (first use in this function)
>> ops = &omap3_dpll_per_ck_ops;
>> ^
>>
>> drivers/built-in.o: In function `ti_clk_register_gate':
>> drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_omap3430es2_dss_usbhost_wait'
>> drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_am35xx_ipss_module_wait'
>> -in.o: In function `ti_clk_register_interface':
>> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_hsotgusb_wait'
>> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_dss_usbhost_wait'
>> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_ssi_wait'
>> drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_am35xx_ipss_wait'
>> drivers/built-in.o: In function `ti_clk_register_composite':
>> :(.text+0x3da768): undefined reference to `ti_clk_build_component_gate'
>>
>> In order to fix that problem, this patch makes the omap3 legacy code
>> compiled only when both CONFIG_OMAP3 and CONFIG_ATAGS are set.
>
> Looks OK to me:
>
> Acked-by: Tony Lindgren <tony@atomide.com>
Thanks for the fix Arnd and for the Ack Tony. I beautified the commitlog a bit.
Applied to clk-next.
Regards,
Mike
>
>> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>> ----
>> diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
>> index 14e6686a5eea..105ffd0f5e79 100644
>> --- a/drivers/clk/ti/Makefile
>> +++ b/drivers/clk/ti/Makefile
>> @@ -1,4 +1,3 @@
>> -ifneq ($(CONFIG_OF),)
>> obj-y += clk.o autoidle.o clockdomain.o
>> clk-common = dpll.o composite.o divider.o gate.o \
>> fixed-factor.o mux.o apll.o
>> @@ -6,10 +5,13 @@ obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o
>> obj-$(CONFIG_SOC_TI81XX) += $(clk-common) fapll.o clk-816x.o
>> obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o
>> obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o \
>> - clk-3xxx.o clk-3xxx-legacy.o
>> + clk-3xxx.o
>> obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o
>> obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o
>> obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o \
>> clk-dra7-atl.o
>> obj-$(CONFIG_SOC_AM43XX) += $(clk-common) clk-43xx.o
>> +
>> +ifdef CONFIG_ATAGS
>> +obj-$(CONFIG_ARCH_OMAP3) += clk-3xxx-legacy.o
>> endif
>> diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
>> index 546dae405402..e22b95646e09 100644
>> --- a/drivers/clk/ti/clk.c
>> +++ b/drivers/clk/ti/clk.c
>> @@ -186,6 +186,7 @@ void ti_dt_clk_init_retry_clks(void)
>> }
>> }
>>
>> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
>> void __init ti_clk_patch_legacy_clks(struct ti_clk **patch)
>> {
>> while (*patch) {
>> @@ -308,3 +309,4 @@ int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks)
>>
>> return 0;
>> }
>> +#endif
>> diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c
>> index 3a9665fce041..3654f61912eb 100644
>> --- a/drivers/clk/ti/composite.c
>> +++ b/drivers/clk/ti/composite.c
>> @@ -118,6 +118,7 @@ static inline struct clk_hw *_get_hw(struct clk_hw_omap_comp *clk, int idx)
>>
>> #define to_clk_hw_comp(_hw) container_of(_hw, struct clk_hw_omap_comp, hw)
>>
>> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
>> struct clk *ti_clk_register_composite(struct ti_clk *setup)
>> {
>> struct ti_clk_composite *comp;
>> @@ -153,6 +154,7 @@ struct clk *ti_clk_register_composite(struct ti_clk *setup)
>>
>> return clk;
>> }
>> +#endif
>>
>> static void __init _register_composite(struct clk_hw *hw,
>> struct device_node *node)
>> diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
>> index 47ebff772b13..81dc4698dc41 100644
>> --- a/drivers/clk/ti/dpll.c
>> +++ b/drivers/clk/ti/dpll.c
>> @@ -176,6 +176,7 @@ cleanup:
>> kfree(clk_hw);
>> }
>>
>> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
>> void __iomem *_get_reg(u8 module, u16 offset)
>> {
>> u32 reg;
>> @@ -271,6 +272,7 @@ cleanup:
>> kfree(clk_hw);
>> return clk;
>> }
>> +#endif
>>
>> #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
>> defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX) || \
>> diff --git a/drivers/clk/ti/gate.c b/drivers/clk/ti/gate.c
>> index d4f6cb20e16e..d493307b73f4 100644
>> --- a/drivers/clk/ti/gate.c
>> +++ b/drivers/clk/ti/gate.c
>> @@ -130,6 +130,7 @@ static struct clk *_register_gate(struct device *dev, const char *name,
>> return clk;
>> }
>>
>> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
>> struct clk *ti_clk_register_gate(struct ti_clk *setup)
>> {
>> const struct clk_ops *ops = &omap_gate_clk_ops;
>> @@ -208,6 +209,7 @@ struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup)
>>
>> return &gate->hw;
>> }
>> +#endif
>>
>> static void __init _of_ti_gate_clk_setup(struct device_node *node,
>> const struct clk_ops *ops,
>> diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c
>> index d71cd9b5de46..265d91f071c5 100644
>> --- a/drivers/clk/ti/interface.c
>> +++ b/drivers/clk/ti/interface.c
>> @@ -68,6 +68,7 @@ static struct clk *_register_interface(struct device *dev, const char *name,
>> return clk;
>> }
>>
>> +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
>> struct clk *ti_clk_register_interface(struct ti_clk *setup)
>> {
>> const struct clk_hw_omap_ops *ops = &clkhwops_iclk_wait;
>> @@ -98,6 +99,7 @@ struct clk *ti_clk_register_interface(struct ti_clk *setup)
>> return _register_interface(NULL, setup->name, gate->parent,
>> (void __iomem *)reg, gate->bit_shift, ops);
>> }
>> +#endif
>>
>> static void __init _of_ti_interface_clk_setup(struct device_node *node,
>> const struct clk_hw_omap_ops *ops)
>> diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
>> index 0eac65054283..67844003493d 100644
>> --- a/include/linux/clk/ti.h
>> +++ b/include/linux/clk/ti.h
>> @@ -360,9 +360,17 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
>> extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
>> extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
>>
>> +#ifdef CONFIG_ATAGS
>> int omap3430_clk_legacy_init(void);
>> int omap3430es1_clk_legacy_init(void);
>> int omap36xx_clk_legacy_init(void);
>> int am35xx_clk_legacy_init(void);
>> +#else
>> +static inline int omap3430_clk_legacy_init(void) { return -ENXIO; }
>> +static inline int omap3430es1_clk_legacy_init(void) { return -ENXIO; }
>> +static inline int omap36xx_clk_legacy_init(void) { return -ENXIO; }
>> +static inline int am35xx_clk_legacy_init(void) { return -ENXIO; }
>> +#endif
>> +
>>
>> #endif
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
>> the body of a message to majordomo at vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PATCHv2 06/11] clk: ti: dpll: add support for legacy DPLL init
2014-12-16 16:20 [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tero Kristo
` (9 preceding siblings ...)
2015-01-07 23:00 ` [PATCH 00/11] ARM: OMAP3: legacy clock data move under clk driver Tony Lindgren
@ 2015-01-29 20:24 ` Tero Kristo
10 siblings, 0 replies; 19+ messages in thread
From: Tero Kristo @ 2015-01-29 20:24 UTC (permalink / raw)
To: linux-arm-kernel
Legacy clock data is initialized slightly differently compared to
DT clocks, thus add support for this.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
---
drivers/clk/ti/clk.c | 3 ++
drivers/clk/ti/clock.h | 2 +
drivers/clk/ti/dpll.c | 119 +++++++++++++++++++++++++++++++++++++++++++-----
3 files changed, 113 insertions(+), 11 deletions(-)
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index a0475e2..f41a757 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -228,6 +228,9 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
case TI_CLK_GATE:
clk = ti_clk_register_gate(setup);
break;
+ case TI_CLK_DPLL:
+ clk = ti_clk_register_dpll(setup);
+ break;
default:
pr_err("bad type for %s!\n", setup->name);
clk = ERR_PTR(-EINVAL);
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index fe70941..578b73b 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -148,6 +148,7 @@ struct ti_clk_dpll {
u32 sddiv_mask;
u16 max_multiplier;
u16 max_divider;
+ u8 min_divider;
u8 auto_recal_bit;
u8 recal_en_bit;
u8 recal_st_bit;
@@ -157,6 +158,7 @@ struct clk *ti_clk_register_gate(struct ti_clk *setup);
struct clk *ti_clk_register_interface(struct ti_clk *setup);
struct clk *ti_clk_register_mux(struct ti_clk *setup);
struct clk *ti_clk_register_divider(struct ti_clk *setup);
+struct clk *ti_clk_register_dpll(struct ti_clk *setup);
struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup);
struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup);
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index 85ac0dd..47ebff7 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk/ti.h>
+#include "clock.h"
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -130,7 +131,7 @@ static const struct clk_ops dpll_x2_ck_ops = {
};
/**
- * ti_clk_register_dpll - low level registration of a DPLL clock
+ * _register_dpll - low level registration of a DPLL clock
* @hw: hardware clock definition for the clock
* @node: device node for the clock
*
@@ -138,8 +139,8 @@ static const struct clk_ops dpll_x2_ck_ops = {
* clk-bypass is missing), the clock is added to retry list and
* the initialization is retried on later stage.
*/
-static void __init ti_clk_register_dpll(struct clk_hw *hw,
- struct device_node *node)
+static void __init _register_dpll(struct clk_hw *hw,
+ struct device_node *node)
{
struct clk_hw_omap *clk_hw = to_clk_hw_omap(hw);
struct dpll_data *dd = clk_hw->dpll_data;
@@ -151,7 +152,7 @@ static void __init ti_clk_register_dpll(struct clk_hw *hw,
if (IS_ERR(dd->clk_ref) || IS_ERR(dd->clk_bypass)) {
pr_debug("clk-ref or clk-bypass missing for %s, retry later\n",
node->name);
- if (!ti_clk_retry_init(node, hw, ti_clk_register_dpll))
+ if (!ti_clk_retry_init(node, hw, _register_dpll))
return;
goto cleanup;
@@ -175,20 +176,116 @@ cleanup:
kfree(clk_hw);
}
+void __iomem *_get_reg(u8 module, u16 offset)
+{
+ u32 reg;
+ struct clk_omap_reg *reg_setup;
+
+ reg_setup = (struct clk_omap_reg *)®
+
+ reg_setup->index = module;
+ reg_setup->offset = offset;
+
+ return (void __iomem *)reg;
+}
+
+struct clk *ti_clk_register_dpll(struct ti_clk *setup)
+{
+ struct clk_hw_omap *clk_hw;
+ struct clk_init_data init = { NULL };
+ struct dpll_data *dd;
+ struct clk *clk;
+ struct ti_clk_dpll *dpll;
+ const struct clk_ops *ops = &omap3_dpll_ck_ops;
+ struct clk *clk_ref;
+ struct clk *clk_bypass;
+
+ dpll = setup->data;
+
+ if (dpll->num_parents < 2)
+ return ERR_PTR(-EINVAL);
+
+ clk_ref = clk_get_sys(NULL, dpll->parents[0]);
+ clk_bypass = clk_get_sys(NULL, dpll->parents[1]);
+
+ if (IS_ERR_OR_NULL(clk_ref) || IS_ERR_OR_NULL(clk_bypass))
+ return ERR_PTR(-EAGAIN);
+
+ dd = kzalloc(sizeof(*dd), GFP_KERNEL);
+ clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
+ if (!dd || !clk_hw) {
+ clk = ERR_PTR(-ENOMEM);
+ goto cleanup;
+ }
+
+ clk_hw->dpll_data = dd;
+ clk_hw->ops = &clkhwops_omap3_dpll;
+ clk_hw->hw.init = &init;
+ clk_hw->flags = MEMMAP_ADDRESSING;
+
+ init.name = setup->name;
+ init.ops = ops;
+
+ init.num_parents = dpll->num_parents;
+ init.parent_names = dpll->parents;
+
+ dd->control_reg = _get_reg(dpll->module, dpll->control_reg);
+ dd->idlest_reg = _get_reg(dpll->module, dpll->idlest_reg);
+ dd->mult_div1_reg = _get_reg(dpll->module, dpll->mult_div1_reg);
+ dd->autoidle_reg = _get_reg(dpll->module, dpll->autoidle_reg);
+
+ dd->modes = dpll->modes;
+ dd->div1_mask = dpll->div1_mask;
+ dd->idlest_mask = dpll->idlest_mask;
+ dd->mult_mask = dpll->mult_mask;
+ dd->autoidle_mask = dpll->autoidle_mask;
+ dd->enable_mask = dpll->enable_mask;
+ dd->sddiv_mask = dpll->sddiv_mask;
+ dd->dco_mask = dpll->dco_mask;
+ dd->max_divider = dpll->max_divider;
+ dd->min_divider = dpll->min_divider;
+ dd->max_multiplier = dpll->max_multiplier;
+ dd->auto_recal_bit = dpll->auto_recal_bit;
+ dd->recal_en_bit = dpll->recal_en_bit;
+ dd->recal_st_bit = dpll->recal_st_bit;
+
+ dd->clk_ref = clk_ref;
+ dd->clk_bypass = clk_bypass;
+
+ if (dpll->flags & CLKF_CORE)
+ ops = &omap3_dpll_core_ck_ops;
+
+ if (dpll->flags & CLKF_PER)
+ ops = &omap3_dpll_per_ck_ops;
+
+ if (dpll->flags & CLKF_J_TYPE)
+ dd->flags |= DPLL_J_TYPE;
+
+ clk = clk_register(NULL, &clk_hw->hw);
+
+ if (!IS_ERR(clk))
+ return clk;
+
+cleanup:
+ kfree(dd);
+ kfree(clk_hw);
+ return clk;
+}
+
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX) || \
defined(CONFIG_SOC_AM43XX)
/**
- * ti_clk_register_dpll_x2 - Registers a DPLLx2 clock
+ * _register_dpll_x2 - Registers a DPLLx2 clock
* @node: device node for this clock
* @ops: clk_ops for this clock
* @hw_ops: clk_hw_ops for this clock
*
* Initializes a DPLL x 2 clock from device tree data.
*/
-static void ti_clk_register_dpll_x2(struct device_node *node,
- const struct clk_ops *ops,
- const struct clk_hw_omap_ops *hw_ops)
+static void _register_dpll_x2(struct device_node *node,
+ const struct clk_ops *ops,
+ const struct clk_hw_omap_ops *hw_ops)
{
struct clk *clk;
struct clk_init_data init = { NULL };
@@ -318,7 +415,7 @@ static void __init of_ti_dpll_setup(struct device_node *node,
if (dpll_mode)
dd->modes = dpll_mode;
- ti_clk_register_dpll(&clk_hw->hw, node);
+ _register_dpll(&clk_hw->hw, node);
return;
cleanup:
@@ -332,7 +429,7 @@ cleanup:
defined(CONFIG_SOC_DRA7XX)
static void __init of_ti_omap4_dpll_x2_setup(struct device_node *node)
{
- ti_clk_register_dpll_x2(node, &dpll_x2_ck_ops, &clkhwops_omap4_dpllmx);
+ _register_dpll_x2(node, &dpll_x2_ck_ops, &clkhwops_omap4_dpllmx);
}
CLK_OF_DECLARE(ti_omap4_dpll_x2_clock, "ti,omap4-dpll-x2-clock",
of_ti_omap4_dpll_x2_setup);
@@ -341,7 +438,7 @@ CLK_OF_DECLARE(ti_omap4_dpll_x2_clock, "ti,omap4-dpll-x2-clock",
#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static void __init of_ti_am3_dpll_x2_setup(struct device_node *node)
{
- ti_clk_register_dpll_x2(node, &dpll_x2_ck_ops, NULL);
+ _register_dpll_x2(node, &dpll_x2_ck_ops, NULL);
}
CLK_OF_DECLARE(ti_am3_dpll_x2_clock, "ti,am3-dpll-x2-clock",
of_ti_am3_dpll_x2_setup);
--
1.7.9.5
^ permalink raw reply related [flat|nested] 19+ messages in thread