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authorRobert Jarzmik <robert.jarzmik@free.fr>2014-10-07 01:07:58 +0200
committerMichael Turquette <mturquette@linaro.org>2014-11-17 11:27:44 -0800
commit14dd5b01ae86760142157a5259b7f798eb840697 (patch)
tree97eb3cd234b50ee3081ecb91a53fc99ff49967e3
parentfe7710fae477f648773648ea0a05b079c5b66667 (diff)
downloadlinux-14dd5b01ae86760142157a5259b7f798eb840697.tar.bz2
clk: pxa: declare init function and data __init
As the clock descriptions are constant and only usefull at init time, mark them as such by : - spliting clock description (desc) and clock private data (dynamic) - mark __initdata clock descriptions This makes all the register and descriptions of the clocks to go after kernel init phase. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Michael Turquette <mturquette@linaro.org>
-rw-r--r--drivers/clk/pxa/clk-pxa.c42
-rw-r--r--drivers/clk/pxa/clk-pxa.h8
-rw-r--r--drivers/clk/pxa/clk-pxa27x.c2
3 files changed, 32 insertions, 20 deletions
diff --git a/drivers/clk/pxa/clk-pxa.c b/drivers/clk/pxa/clk-pxa.c
index ef3c05389c0a..994fd6fc266f 100644
--- a/drivers/clk/pxa/clk-pxa.c
+++ b/drivers/clk/pxa/clk-pxa.c
@@ -26,12 +26,20 @@ static struct clk_onecell_data onecell_data = {
.clk_num = CLK_MAX,
};
-#define to_pxa_clk(_hw) container_of(_hw, struct pxa_clk_cken, hw)
+struct pxa_clk {
+ struct clk_hw hw;
+ struct clk_fixed_factor lp;
+ struct clk_fixed_factor hp;
+ struct clk_gate gate;
+ bool (*is_in_low_power)(void);
+};
+
+#define to_pxa_clk(_hw) container_of(_hw, struct pxa_clk, hw)
static unsigned long cken_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
- struct pxa_clk_cken *pclk = to_pxa_clk(hw);
+ struct pxa_clk *pclk = to_pxa_clk(hw);
struct clk_fixed_factor *fix;
if (!pclk->is_in_low_power || pclk->is_in_low_power())
@@ -48,7 +56,7 @@ static struct clk_ops cken_rate_ops = {
static u8 cken_get_parent(struct clk_hw *hw)
{
- struct pxa_clk_cken *pclk = to_pxa_clk(hw);
+ struct pxa_clk *pclk = to_pxa_clk(hw);
if (!pclk->is_in_low_power)
return 0;
@@ -69,23 +77,27 @@ void __init clkdev_pxa_register(int ckid, const char *con_id,
clk_register_clkdev(clk, con_id, dev_id);
}
-int __init clk_pxa_cken_init(struct pxa_clk_cken *clks, int nb_clks)
+int __init clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks)
{
int i;
- struct pxa_clk_cken *pclk;
+ struct pxa_clk *pxa_clk;
struct clk *clk;
for (i = 0; i < nb_clks; i++) {
- pclk = clks + i;
- pclk->gate.lock = &lock;
- clk = clk_register_composite(NULL, pclk->name,
- pclk->parent_names, 2,
- &pclk->hw, &cken_mux_ops,
- &pclk->hw, &cken_rate_ops,
- &pclk->gate.hw, &clk_gate_ops,
- pclk->flags);
- clkdev_pxa_register(pclk->ckid, pclk->con_id, pclk->dev_id,
- clk);
+ pxa_clk = kzalloc(sizeof(*pxa_clk), GFP_KERNEL);
+ pxa_clk->is_in_low_power = clks[i].is_in_low_power;
+ pxa_clk->lp = clks[i].lp;
+ pxa_clk->hp = clks[i].hp;
+ pxa_clk->gate = clks[i].gate;
+ pxa_clk->gate.lock = &lock;
+ clk = clk_register_composite(NULL, clks[i].name,
+ clks[i].parent_names, 2,
+ &pxa_clk->hw, &cken_mux_ops,
+ &pxa_clk->hw, &cken_rate_ops,
+ &pxa_clk->gate.hw, &clk_gate_ops,
+ clks[i].flags);
+ clkdev_pxa_register(clks[i].ckid, clks[i].con_id,
+ clks[i].dev_id, clk);
}
return 0;
}
diff --git a/drivers/clk/pxa/clk-pxa.h b/drivers/clk/pxa/clk-pxa.h
index 5fe219d06b49..7b8d48e8e17e 100644
--- a/drivers/clk/pxa/clk-pxa.h
+++ b/drivers/clk/pxa/clk-pxa.h
@@ -25,7 +25,7 @@
static struct clk_ops name ## _rate_ops = { \
.recalc_rate = name ## _get_rate, \
}; \
- static struct clk *clk_register_ ## name(void) \
+ static struct clk * __init clk_register_ ## name(void) \
{ \
return clk_register_composite(NULL, clk_name, \
name ## _parents, \
@@ -40,7 +40,7 @@
static struct clk_ops name ## _rate_ops = { \
.recalc_rate = name ## _get_rate, \
}; \
- static struct clk *clk_register_ ## name(void) \
+ static struct clk * __init clk_register_ ## name(void) \
{ \
return clk_register_composite(NULL, clk_name, \
name ## _parents, \
@@ -66,7 +66,7 @@
* | Clock | --- | / div_hp |
* +------------+ +-----------+
*/
-struct pxa_clk_cken {
+struct desc_clk_cken {
struct clk_hw hw;
int ckid;
const char *name;
@@ -102,6 +102,6 @@ static int dummy_clk_set_parent(struct clk_hw *hw, u8 index)
extern void clkdev_pxa_register(int ckid, const char *con_id,
const char *dev_id, struct clk *clk);
-extern int clk_pxa_cken_init(struct pxa_clk_cken *clks, int nb_clks);
+extern int clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks);
#endif
diff --git a/drivers/clk/pxa/clk-pxa27x.c b/drivers/clk/pxa/clk-pxa27x.c
index b345cc791e5d..24c1d2454c75 100644
--- a/drivers/clk/pxa/clk-pxa27x.c
+++ b/drivers/clk/pxa/clk-pxa27x.c
@@ -111,7 +111,7 @@ PARENTS(pxa27x_membus) = { "lcd_base", "lcd_base" };
PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \
&CKEN, CKEN_ ## bit, CLK_IGNORE_UNUSED)
-static struct pxa_clk_cken pxa27x_clocks[] = {
+static struct desc_clk_cken pxa27x_clocks[] __initdata = {
PXA27X_PBUS_CKEN("pxa2xx-uart.0", NULL, FFUART, 2, 42, 1),
PXA27X_PBUS_CKEN("pxa2xx-uart.1", NULL, BTUART, 2, 42, 1),
PXA27X_PBUS_CKEN("pxa2xx-uart.2", NULL, STUART, 2, 42, 1),