summaryrefslogtreecommitdiff
path: root/drivers/clk/sirf
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-01 03:26:48 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-01 03:26:48 +0300
commitf36fc04e4cdda9e4c72ee504e7dc638f9a168863 (patch)
tree27ccf1037fba7b0deeb5bfdfb748bd9cc97c293d /drivers/clk/sirf
parent26f8b7edc9eab56638274f5db90848a6df602081 (diff)
parentba30011577330b7e29ecb5916d89c6db9fbc5b3d (diff)
downloadlinux-f36fc04e4cdda9e4c72ee504e7dc638f9a168863.tar.xz
Merge tag 'clk-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Michael Turquette: "The clk framework changes for 4.3 are mostly updates to existing drivers and the addition of new clock drivers. Stephen Boyd has also done a lot of subsystem-wide driver clean-ups (thanks!). There are also fixes to the framework core and changes to better split clock provider drivers from clock consumer drivers" * tag 'clk-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (227 commits) clk: s5pv210: add missing call to samsung_clk_of_add_provider() clk: pistachio: correct critical clock list clk: pistachio: Fix PLL rate calculation in integer mode clk: pistachio: Fix override of clk-pll settings from boot loader clk: pistachio: Fix 32bit integer overflows clk: tegra: Fix some static checker problems clk: qcom: Fix MSM8916 prng clock enable bit clk: Add missing header for 'bool' definition to clk-conf.h drivers/clk: appropriate __init annotation for const data clk: rockchip: register pll mux before pll itself clk: add bindings for the Ux500 clocks clk/ARM: move Ux500 PRCC bases to the device tree clk: remove duplicated code with __clk_set_parent_after clk: Convert __clk_get_name(hw->clk) to clk_hw_get_name(hw) clk: Constify clk_hw argument to provider APIs clk: Hi6220: add stub clock driver dt-bindings: clk: Hi6220: Document stub clock driver dt-bindings: arm: Hi6220: add doc for SRAM controller clk: atlas7: fix pll missed divide NR in fraction mode clk: atlas7: fix bit field and its root clk for coresight_tpiu ...
Diffstat (limited to 'drivers/clk/sirf')
-rw-r--r--drivers/clk/sirf/clk-atlas6.c1
-rw-r--r--drivers/clk/sirf/clk-atlas7.c25
-rw-r--r--drivers/clk/sirf/clk-common.c14
-rw-r--r--drivers/clk/sirf/clk-prima2.c1
4 files changed, 25 insertions, 16 deletions
diff --git a/drivers/clk/sirf/clk-atlas6.c b/drivers/clk/sirf/clk-atlas6.c
index d63b76ca60c3..c5eaa9d16247 100644
--- a/drivers/clk/sirf/clk-atlas6.c
+++ b/drivers/clk/sirf/clk-atlas6.c
@@ -10,7 +10,6 @@
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/io.h>
-#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/of_address.h>
diff --git a/drivers/clk/sirf/clk-atlas7.c b/drivers/clk/sirf/clk-atlas7.c
index db8ab691dbf6..a98e21fe773a 100644
--- a/drivers/clk/sirf/clk-atlas7.c
+++ b/drivers/clk/sirf/clk-atlas7.c
@@ -358,6 +358,7 @@ static unsigned long pll_clk_recalc_rate(struct clk_hw *hw,
if (regctrl0 & SIRFSOC_ABPLL_CTRL0_SSEN) {
rate = fin;
rate *= 1 << 24;
+ do_div(rate, nr);
do_div(rate, (256 * ((ssdiv >> ssdepth) << ssdepth)
+ (ssmod << ssdepth)));
} else {
@@ -465,6 +466,9 @@ static struct clk_pll clk_sys3pll = {
* double resolution mode:fout = fin * finc / 2^29
* normal mode:fout = fin * finc / 2^28
*/
+#define DTO_RESL_DOUBLE (1ULL << 29)
+#define DTO_RESL_NORMAL (1ULL << 28)
+
static int dto_clk_is_enabled(struct clk_hw *hw)
{
struct clk_dto *clk = to_dtoclk(hw);
@@ -509,9 +513,9 @@ static unsigned long dto_clk_recalc_rate(struct clk_hw *hw,
rate *= finc;
if (droff & BIT(0))
/* Double resolution off */
- do_div(rate, 1 << 28);
+ do_div(rate, DTO_RESL_NORMAL);
else
- do_div(rate, 1 << 29);
+ do_div(rate, DTO_RESL_DOUBLE);
return rate;
}
@@ -519,11 +523,11 @@ static unsigned long dto_clk_recalc_rate(struct clk_hw *hw,
static long dto_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
{
- u64 dividend = rate * (1 << 29);
+ u64 dividend = rate * DTO_RESL_DOUBLE;
do_div(dividend, *parent_rate);
dividend *= *parent_rate;
- do_div(dividend, 1 << 29);
+ do_div(dividend, DTO_RESL_DOUBLE);
return dividend;
}
@@ -531,7 +535,7 @@ static long dto_clk_round_rate(struct clk_hw *hw, unsigned long rate,
static int dto_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
- u64 dividend = rate * (1 << 29);
+ u64 dividend = rate * DTO_RESL_DOUBLE;
struct clk_dto *clk = to_dtoclk(hw);
do_div(dividend, parent_rate);
@@ -1161,7 +1165,7 @@ static struct atlas7_unit_init_data unit_list[] __initdata = {
{ 122, "spram1_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 0, &leaf6_gate_lock },
{ 123, "spram2_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 1, &leaf6_gate_lock },
{ 124, "coresight_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 2, &leaf6_gate_lock },
- { 125, "thcpum_cpudiv4", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 3, &leaf6_gate_lock },
+ { 125, "coresight_tpiu", "cpum_tpiu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 3, &leaf6_gate_lock },
{ 126, "graphic_gpu", "gpum_gpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 0, &leaf7_gate_lock },
{ 127, "vss_sdr", "gpum_sdr", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 1, &leaf7_gate_lock },
{ 128, "thgpum_nocr", "gpum_nocr", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 2, &leaf7_gate_lock },
@@ -1174,9 +1178,13 @@ static struct atlas7_unit_init_data unit_list[] __initdata = {
{ 135, "thbtm_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 7, &leaf8_gate_lock },
{ 136, "btslow", "xinw_fixdiv_btslow", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 25, &root1_gate_lock },
{ 137, "a7ca_btslow", "btslow", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 0, &leaf8_gate_lock },
+ { 138, "pwm_io", "io_mux", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 0, &leaf0_gate_lock },
+ { 139, "pwm_xin", "xin", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 1, &leaf0_gate_lock },
+ { 140, "pwm_xinw", "xinw", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 2, &leaf0_gate_lock },
+ { 141, "thcgum_sys", "sys_mux", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 3, &leaf0_gate_lock },
};
-static struct clk *atlas7_clks[ARRAY_SIZE(unit_list)];
+static struct clk *atlas7_clks[ARRAY_SIZE(unit_list) + ARRAY_SIZE(mux_list)];
static int unit_clk_is_enabled(struct clk_hw *hw)
{
@@ -1609,6 +1617,7 @@ static void __init atlas7_clk_init(struct device_node *np)
sirfsoc_clk_vbase + mux->mux_offset,
mux->shift, mux->width,
mux->mux_flags, NULL);
+ atlas7_clks[ARRAY_SIZE(unit_list) + i] = clk;
BUG_ON(!clk);
}
@@ -1620,7 +1629,7 @@ static void __init atlas7_clk_init(struct device_node *np)
}
clk_data.clks = atlas7_clks;
- clk_data.clk_num = ARRAY_SIZE(unit_list);
+ clk_data.clk_num = ARRAY_SIZE(unit_list) + ARRAY_SIZE(mux_list);
ret = of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
BUG_ON(ret);
diff --git a/drivers/clk/sirf/clk-common.c b/drivers/clk/sirf/clk-common.c
index 9fc285d784d3..77e1e2491689 100644
--- a/drivers/clk/sirf/clk-common.c
+++ b/drivers/clk/sirf/clk-common.c
@@ -7,6 +7,8 @@
* Licensed under GPLv2 or later.
*/
+#include <linux/clk.h>
+
#define KHZ 1000
#define MHZ (KHZ * KHZ)
@@ -165,10 +167,10 @@ static long cpu_clk_round_rate(struct clk_hw *hw, unsigned long rate,
* SiRF SoC has not cpu clock control,
* So bypass to it's parent pll.
*/
- struct clk *parent_clk = clk_get_parent(hw->clk);
- struct clk *pll_parent_clk = clk_get_parent(parent_clk);
- unsigned long pll_parent_rate = clk_get_rate(pll_parent_clk);
- return pll_clk_round_rate(__clk_get_hw(parent_clk), rate, &pll_parent_rate);
+ struct clk_hw *parent_clk = clk_hw_get_parent(hw);
+ struct clk_hw *pll_parent_clk = clk_hw_get_parent(parent_clk);
+ unsigned long pll_parent_rate = clk_hw_get_rate(pll_parent_clk);
+ return pll_clk_round_rate(parent_clk, rate, &pll_parent_rate);
}
static unsigned long cpu_clk_recalc_rate(struct clk_hw *hw,
@@ -178,8 +180,8 @@ static unsigned long cpu_clk_recalc_rate(struct clk_hw *hw,
* SiRF SoC has not cpu clock control,
* So return the parent pll rate.
*/
- struct clk *parent_clk = clk_get_parent(hw->clk);
- return __clk_get_rate(parent_clk);
+ struct clk_hw *parent_clk = clk_hw_get_parent(hw);
+ return clk_hw_get_rate(parent_clk);
}
static struct clk_ops std_pll_ops = {
diff --git a/drivers/clk/sirf/clk-prima2.c b/drivers/clk/sirf/clk-prima2.c
index 6968e2ebcd8a..f92c40264342 100644
--- a/drivers/clk/sirf/clk-prima2.c
+++ b/drivers/clk/sirf/clk-prima2.c
@@ -10,7 +10,6 @@
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/io.h>
-#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/of_address.h>