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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /drivers/clk/st
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'drivers/clk/st')
-rw-r--r--drivers/clk/st/clk-flexgen.c13
-rw-r--r--drivers/clk/st/clkgen-fsyn.c27
-rw-r--r--drivers/clk/st/clkgen-mux.c93
-rw-r--r--drivers/clk/st/clkgen-pll.c21
4 files changed, 80 insertions, 74 deletions
diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c
index 8dd8cce27..bd355ee33 100644
--- a/drivers/clk/st/clk-flexgen.c
+++ b/drivers/clk/st/clk-flexgen.c
@@ -5,6 +5,7 @@
* Author: Maxime Coquelin <maxime.coquelin@st.com> for ST-Microelectronics.
* License terms: GNU General Public License (GPL), version 2 */
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -44,7 +45,7 @@ static int flexgen_enable(struct clk_hw *hw)
clk_gate_ops.enable(fgate_hw);
- pr_debug("%s: flexgen output enabled\n", __clk_get_name(hw->clk));
+ pr_debug("%s: flexgen output enabled\n", clk_hw_get_name(hw));
return 0;
}
@@ -58,7 +59,7 @@ static void flexgen_disable(struct clk_hw *hw)
clk_gate_ops.disable(fgate_hw);
- pr_debug("%s: flexgen output disabled\n", __clk_get_name(hw->clk));
+ pr_debug("%s: flexgen output disabled\n", clk_hw_get_name(hw));
}
static int flexgen_is_enabled(struct clk_hw *hw)
@@ -108,7 +109,7 @@ static long flexgen_round_rate(struct clk_hw *hw, unsigned long rate,
/* Round div according to exact prate and wished rate */
div = clk_best_div(*prate, rate);
- if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) {
+ if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) {
*prate = rate * div;
return rate;
}
@@ -243,7 +244,7 @@ static const char ** __init flexgen_get_parents(struct device_node *np,
int *num_parents)
{
const char **parents;
- int nparents, i;
+ int nparents;
nparents = of_clk_get_parent_count(np);
if (WARN_ON(nparents <= 0))
@@ -253,10 +254,8 @@ static const char ** __init flexgen_get_parents(struct device_node *np,
if (!parents)
return NULL;
- for (i = 0; i < nparents; i++)
- parents[i] = of_clk_get_parent_name(np, i);
+ *num_parents = of_clk_parent_fill(np, parents, nparents);
- *num_parents = nparents;
return parents;
}
diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c
index d9eb2e1d8..576cd0354 100644
--- a/drivers/clk/st/clkgen-fsyn.c
+++ b/drivers/clk/st/clkgen-fsyn.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/of_address.h>
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include "clkgen.h"
@@ -306,7 +307,7 @@ static const struct clkgen_quadfs_data st_fs660c32_F_416 = {
.get_rate = clk_fs660c32_dig_get_rate,
};
-static const struct clkgen_quadfs_data st_fs660c32_C_407 = {
+static const struct clkgen_quadfs_data st_fs660c32_C = {
.nrst_present = true,
.nrst = { CLKGEN_FIELD(0x2f0, 0x1, 0),
CLKGEN_FIELD(0x2f0, 0x1, 1),
@@ -349,7 +350,7 @@ static const struct clkgen_quadfs_data st_fs660c32_C_407 = {
.get_rate = clk_fs660c32_dig_get_rate,
};
-static const struct clkgen_quadfs_data st_fs660c32_D_407 = {
+static const struct clkgen_quadfs_data st_fs660c32_D = {
.nrst_present = true,
.nrst = { CLKGEN_FIELD(0x2a0, 0x1, 0),
CLKGEN_FIELD(0x2a0, 0x1, 1),
@@ -512,7 +513,7 @@ static unsigned long quadfs_pll_fs660c32_recalc_rate(struct clk_hw *hw,
params.ndiv = CLKGEN_READ(pll, ndiv);
if (clk_fs660c32_vco_get_rate(parent_rate, &params, &rate))
pr_err("%s:%s error calculating rate\n",
- __clk_get_name(hw->clk), __func__);
+ clk_hw_get_name(hw), __func__);
pll->ndiv = params.ndiv;
@@ -557,7 +558,7 @@ static long quadfs_pll_fs660c32_round_rate(struct clk_hw *hw, unsigned long rate
clk_fs660c32_vco_get_rate(*prate, &params, &rate);
pr_debug("%s: %s new rate %ld [sdiv=0x%x,md=0x%x,pe=0x%x,nsdiv3=%u]\n",
- __func__, __clk_get_name(hw->clk),
+ __func__, clk_hw_get_name(hw),
rate, (unsigned int)params.sdiv,
(unsigned int)params.mdiv,
(unsigned int)params.pe, (unsigned int)params.nsdiv);
@@ -580,7 +581,7 @@ static int quadfs_pll_fs660c32_set_rate(struct clk_hw *hw, unsigned long rate,
clk_fs660c32_vco_get_rate(parent_rate, &params, &hwrate);
pr_debug("%s: %s new rate %ld [ndiv=0x%x]\n",
- __func__, __clk_get_name(hw->clk),
+ __func__, clk_hw_get_name(hw),
hwrate, (unsigned int)params.ndiv);
if (!hwrate)
@@ -744,7 +745,7 @@ static int quadfs_fsynth_enable(struct clk_hw *hw)
struct st_clk_quadfs_fsynth *fs = to_quadfs_fsynth(hw);
unsigned long flags = 0;
- pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk));
+ pr_debug("%s: %s\n", __func__, clk_hw_get_name(hw));
quadfs_fsynth_program_rate(fs);
@@ -769,7 +770,7 @@ static void quadfs_fsynth_disable(struct clk_hw *hw)
struct st_clk_quadfs_fsynth *fs = to_quadfs_fsynth(hw);
unsigned long flags = 0;
- pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk));
+ pr_debug("%s: %s\n", __func__, clk_hw_get_name(hw));
if (fs->lock)
spin_lock_irqsave(fs->lock, flags);
@@ -786,7 +787,7 @@ static int quadfs_fsynth_is_enabled(struct clk_hw *hw)
u32 nsb = CLKGEN_READ(fs, nsb[fs->chan]);
pr_debug("%s: %s enable bit = 0x%x\n",
- __func__, __clk_get_name(hw->clk), nsb);
+ __func__, clk_hw_get_name(hw), nsb);
return fs->data->standby_polarity ? !nsb : !!nsb;
}
@@ -945,10 +946,10 @@ static unsigned long quadfs_recalc_rate(struct clk_hw *hw,
if (clk_fs_get_rate(parent_rate, &params, &rate)) {
pr_err("%s:%s error calculating rate\n",
- __clk_get_name(hw->clk), __func__);
+ clk_hw_get_name(hw), __func__);
}
- pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate);
+ pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate);
return rate;
}
@@ -961,7 +962,7 @@ static long quadfs_round_rate(struct clk_hw *hw, unsigned long rate,
rate = quadfs_find_best_rate(hw, rate, *prate, &params);
pr_debug("%s: %s new rate %ld [sdiv=0x%x,md=0x%x,pe=0x%x,nsdiv3=%u]\n",
- __func__, __clk_get_name(hw->clk),
+ __func__, clk_hw_get_name(hw),
rate, (unsigned int)params.sdiv, (unsigned int)params.mdiv,
(unsigned int)params.pe, (unsigned int)params.nsdiv);
@@ -1076,11 +1077,11 @@ static const struct of_device_id quadfs_of_match[] = {
},
{
.compatible = "st,stih407-quadfs660-C",
- .data = &st_fs660c32_C_407
+ .data = &st_fs660c32_C
},
{
.compatible = "st,stih407-quadfs660-D",
- .data = &st_fs660c32_D_407
+ .data = &st_fs660c32_D
},
{}
};
diff --git a/drivers/clk/st/clkgen-mux.c b/drivers/clk/st/clkgen-mux.c
index 717c4a91a..4f7f6c00b 100644
--- a/drivers/clk/st/clkgen-mux.c
+++ b/drivers/clk/st/clkgen-mux.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/of_address.h>
+#include <linux/clk.h>
#include <linux/clk-provider.h>
static DEFINE_SPINLOCK(clkgena_divmux_lock);
@@ -24,20 +25,17 @@ static const char ** __init clkgen_mux_get_parents(struct device_node *np,
int *num_parents)
{
const char **parents;
- int nparents, i;
+ int nparents;
nparents = of_clk_get_parent_count(np);
if (WARN_ON(nparents <= 0))
return ERR_PTR(-EINVAL);
- parents = kzalloc(nparents * sizeof(const char *), GFP_KERNEL);
+ parents = kcalloc(nparents, sizeof(const char *), GFP_KERNEL);
if (!parents)
return ERR_PTR(-ENOMEM);
- for (i = 0; i < nparents; i++)
- parents[i] = of_clk_get_parent_name(np, i);
-
- *num_parents = nparents;
+ *num_parents = of_clk_parent_fill(np, parents, nparents);
return parents;
}
@@ -141,7 +139,7 @@ static u8 clkgena_divmux_get_parent(struct clk_hw *hw)
genamux->muxsel = clk_mux_ops.get_parent(mux_hw);
if ((s8)genamux->muxsel < 0) {
pr_debug("%s: %s: Invalid parent, setting to default.\n",
- __func__, __clk_get_name(hw->clk));
+ __func__, clk_hw_get_name(hw));
genamux->muxsel = 0;
}
@@ -215,7 +213,7 @@ static const struct clk_ops clkgena_divmux_ops = {
/**
* clk_register_genamux - register a genamux clock with the clock framework
*/
-static struct clk *clk_register_genamux(const char *name,
+static struct clk * __init clk_register_genamux(const char *name,
const char **parent_names, u8 num_parents,
void __iomem *reg,
const struct clkgena_divmux_data *muxdata,
@@ -369,11 +367,10 @@ static const struct of_device_id clkgena_divmux_of_match[] = {
{}
};
-static void __iomem * __init clkgen_get_register_base(
- struct device_node *np)
+static void __iomem * __init clkgen_get_register_base(struct device_node *np)
{
struct device_node *pnode;
- void __iomem *reg = NULL;
+ void __iomem *reg;
pnode = of_get_parent(np);
if (!pnode)
@@ -398,7 +395,7 @@ static void __init st_of_clkgena_divmux_setup(struct device_node *np)
if (WARN_ON(!match))
return;
- data = (struct clkgena_divmux_data *)match->data;
+ data = match->data;
reg = clkgen_get_register_base(np);
if (!reg)
@@ -406,18 +403,18 @@ static void __init st_of_clkgena_divmux_setup(struct device_node *np)
parents = clkgen_mux_get_parents(np, &num_parents);
if (IS_ERR(parents))
- return;
+ goto err_parents;
clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
if (!clk_data)
- goto err;
+ goto err_alloc;
clk_data->clk_num = data->num_outputs;
- clk_data->clks = kzalloc(clk_data->clk_num * sizeof(struct clk *),
+ clk_data->clks = kcalloc(clk_data->clk_num, sizeof(struct clk *),
GFP_KERNEL);
if (!clk_data->clks)
- goto err;
+ goto err_alloc_clks;
for (i = 0; i < clk_data->clk_num; i++) {
struct clk *clk;
@@ -447,11 +444,13 @@ static void __init st_of_clkgena_divmux_setup(struct device_node *np)
of_clk_add_provider(np, of_clk_src_onecell_get, clk_data);
return;
err:
- if (clk_data)
- kfree(clk_data->clks);
-
+ kfree(clk_data->clks);
+err_alloc_clks:
kfree(clk_data);
+err_alloc:
kfree(parents);
+err_parents:
+ iounmap(reg);
}
CLK_OF_DECLARE(clkgenadivmux, "st,clkgena-divmux", st_of_clkgena_divmux_setup);
@@ -491,7 +490,7 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np)
void __iomem *reg;
const char *parent_name, *clk_name;
struct clk *clk;
- struct clkgena_prediv_data *data;
+ const struct clkgena_prediv_data *data;
match = of_match_node(clkgena_prediv_of_match, np);
if (!match) {
@@ -499,7 +498,7 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np)
return;
}
- data = (struct clkgena_prediv_data *)match->data;
+ data = match->data;
reg = clkgen_get_register_base(np);
if (!reg)
@@ -507,18 +506,18 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np)
parent_name = of_clk_get_parent_name(np, 0);
if (!parent_name)
- return;
+ goto err;
if (of_property_read_string_index(np, "clock-output-names",
0, &clk_name))
- return;
+ goto err;
clk = clk_register_divider_table(NULL, clk_name, parent_name,
CLK_GET_RATE_NOCACHE,
reg + data->offset, data->shift, 1,
0, data->table, NULL);
if (IS_ERR(clk))
- return;
+ goto err;
of_clk_add_provider(np, of_clk_src_simple_get, clk);
pr_debug("%s: parent %s rate %u\n",
@@ -527,6 +526,8 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np)
(unsigned int)clk_get_rate(clk));
return;
+err:
+ iounmap(reg);
}
CLK_OF_DECLARE(clkgenaprediv, "st,clkgena-prediv", st_of_clkgena_prediv_setup);
@@ -630,7 +631,7 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np)
void __iomem *reg;
const char **parents;
int num_parents;
- struct clkgen_mux_data *data;
+ const struct clkgen_mux_data *data;
match = of_match_node(mux_of_match, np);
if (!match) {
@@ -638,7 +639,7 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np)
return;
}
- data = (struct clkgen_mux_data *)match->data;
+ data = match->data;
reg = of_iomap(np, 0);
if (!reg) {
@@ -650,7 +651,7 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np)
if (IS_ERR(parents)) {
pr_err("%s: Failed to get parents (%ld)\n",
__func__, PTR_ERR(parents));
- return;
+ goto err_parents;
}
clk = clk_register_mux(NULL, np->name, parents, num_parents,
@@ -666,12 +667,14 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np)
__clk_get_name(clk_get_parent(clk)),
(unsigned int)clk_get_rate(clk));
+ kfree(parents);
of_clk_add_provider(np, of_clk_src_simple_get, clk);
+ return;
err:
kfree(parents);
-
- return;
+err_parents:
+ iounmap(reg);
}
CLK_OF_DECLARE(clkgen_mux, "st,clkgen-mux", st_of_clkgen_mux_setup);
@@ -707,12 +710,12 @@ static void __init st_of_clkgen_vcc_setup(struct device_node *np)
const char **parents;
int num_parents, i;
struct clk_onecell_data *clk_data;
- struct clkgen_vcc_data *data;
+ const struct clkgen_vcc_data *data;
match = of_match_node(vcc_of_match, np);
if (WARN_ON(!match))
return;
- data = (struct clkgen_vcc_data *)match->data;
+ data = match->data;
reg = of_iomap(np, 0);
if (!reg)
@@ -720,18 +723,18 @@ static void __init st_of_clkgen_vcc_setup(struct device_node *np)
parents = clkgen_mux_get_parents(np, &num_parents);
if (IS_ERR(parents))
- return;
+ goto err_parents;
clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
if (!clk_data)
- goto err;
+ goto err_alloc;
clk_data->clk_num = VCC_MAX_CHANNELS;
- clk_data->clks = kzalloc(clk_data->clk_num * sizeof(struct clk *),
+ clk_data->clks = kcalloc(clk_data->clk_num, sizeof(struct clk *),
GFP_KERNEL);
if (!clk_data->clks)
- goto err;
+ goto err_alloc_clks;
for (i = 0; i < clk_data->clk_num; i++) {
struct clk *clk;
@@ -750,21 +753,21 @@ static void __init st_of_clkgen_vcc_setup(struct device_node *np)
if (*clk_name == '\0')
continue;
- gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
+ gate = kzalloc(sizeof(*gate), GFP_KERNEL);
if (!gate)
- break;
+ goto err;
- div = kzalloc(sizeof(struct clk_divider), GFP_KERNEL);
+ div = kzalloc(sizeof(*div), GFP_KERNEL);
if (!div) {
kfree(gate);
- break;
+ goto err;
}
- mux = kzalloc(sizeof(struct clk_mux), GFP_KERNEL);
+ mux = kzalloc(sizeof(*mux), GFP_KERNEL);
if (!mux) {
kfree(gate);
kfree(div);
- break;
+ goto err;
}
gate->reg = reg + VCC_GATE_OFFSET;
@@ -823,10 +826,12 @@ err:
kfree(container_of(composite->mux_hw, struct clk_mux, hw));
}
- if (clk_data)
- kfree(clk_data->clks);
-
+ kfree(clk_data->clks);
+err_alloc_clks:
kfree(clk_data);
+err_alloc:
kfree(parents);
+err_parents:
+ iounmap(reg);
}
CLK_OF_DECLARE(clkgen_vcc, "st,clkgen-vcc", st_of_clkgen_vcc_setup);
diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c
index 72d1c27ea..b2a332cf8 100644
--- a/drivers/clk/st/clkgen-pll.c
+++ b/drivers/clk/st/clkgen-pll.c
@@ -16,6 +16,7 @@
#include <linux/slab.h>
#include <linux/of_address.h>
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include "clkgen.h"
@@ -192,7 +193,7 @@ static const struct clkgen_pll_data st_pll3200c32_407_a0 = {
.ops = &stm_pll3200c32_ops,
};
-static const struct clkgen_pll_data st_pll3200c32_407_c0_0 = {
+static const struct clkgen_pll_data st_pll3200c32_cx_0 = {
/* 407 C0 PLL0 */
.pdn_status = CLKGEN_FIELD(0x2a0, 0x1, 8),
.locked_status = CLKGEN_FIELD(0x2a0, 0x1, 24),
@@ -204,7 +205,7 @@ static const struct clkgen_pll_data st_pll3200c32_407_c0_0 = {
.ops = &stm_pll3200c32_ops,
};
-static const struct clkgen_pll_data st_pll3200c32_407_c0_1 = {
+static const struct clkgen_pll_data st_pll3200c32_cx_1 = {
/* 407 C0 PLL1 */
.pdn_status = CLKGEN_FIELD(0x2c8, 0x1, 8),
.locked_status = CLKGEN_FIELD(0x2c8, 0x1, 24),
@@ -291,7 +292,7 @@ static unsigned long recalc_stm_pll800c65(struct clk_hw *hw,
res = (uint64_t)2 * (uint64_t)parent_rate * (uint64_t)ndiv;
rate = (unsigned long)div64_u64(res, mdiv * (1 << pdiv));
- pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate);
+ pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate);
return rate;
@@ -316,7 +317,7 @@ static unsigned long recalc_stm_pll1600c65(struct clk_hw *hw,
/* Note: input is divided by 1000 to avoid overflow */
rate = ((2 * (parent_rate / 1000) * ndiv) / mdiv) * 1000;
- pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate);
+ pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate);
return rate;
}
@@ -338,7 +339,7 @@ static unsigned long recalc_stm_pll3200c32(struct clk_hw *hw,
/* Note: input is divided to avoid overflow */
rate = ((2 * (parent_rate/1000) * ndiv) / idf) * 1000;
- pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate);
+ pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate);
return rate;
}
@@ -365,7 +366,7 @@ static unsigned long recalc_stm_pll1200c32(struct clk_hw *hw,
/* Note: input is divided by 1000 to avoid overflow */
rate = (((parent_rate / 1000) * ldf) / (odf * idf)) * 1000;
- pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate);
+ pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate);
return rate;
}
@@ -623,12 +624,12 @@ static const struct of_device_id c32_pll_of_match[] = {
.data = &st_pll3200c32_407_a0,
},
{
- .compatible = "st,stih407-plls-c32-c0_0",
- .data = &st_pll3200c32_407_c0_0,
+ .compatible = "st,plls-c32-cx_0",
+ .data = &st_pll3200c32_cx_0,
},
{
- .compatible = "st,stih407-plls-c32-c0_1",
- .data = &st_pll3200c32_407_c0_1,
+ .compatible = "st,plls-c32-cx_1",
+ .data = &st_pll3200c32_cx_1,
},
{
.compatible = "st,stih407-plls-c32-a9",