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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/clk/shmobile
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/clk/shmobile')
-rw-r--r--kernel/drivers/clk/shmobile/clk-div6.c8
-rw-r--r--kernel/drivers/clk/shmobile/clk-emev2.c8
-rw-r--r--kernel/drivers/clk/shmobile/clk-mstp.c93
-rw-r--r--kernel/drivers/clk/shmobile/clk-r8a73a4.c2
-rw-r--r--kernel/drivers/clk/shmobile/clk-r8a7740.c2
-rw-r--r--kernel/drivers/clk/shmobile/clk-r8a7778.c12
-rw-r--r--kernel/drivers/clk/shmobile/clk-r8a7779.c4
-rw-r--r--kernel/drivers/clk/shmobile/clk-rcar-gen2.c4
-rw-r--r--kernel/drivers/clk/shmobile/clk-rz.c3
-rw-r--r--kernel/drivers/clk/shmobile/clk-sh73a0.c2
10 files changed, 122 insertions, 16 deletions
diff --git a/kernel/drivers/clk/shmobile/clk-div6.c b/kernel/drivers/clk/shmobile/clk-div6.c
index 036a692c7..b4c8d6746 100644
--- a/kernel/drivers/clk/shmobile/clk-div6.c
+++ b/kernel/drivers/clk/shmobile/clk-div6.c
@@ -11,12 +11,12 @@
*/
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/slab.h>
#define CPG_DIV6_CKSTP BIT(8)
#define CPG_DIV6_DIV(d) ((d) & 0x3f)
@@ -133,13 +133,13 @@ static u8 cpg_div6_clock_get_parent(struct clk_hw *hw)
hw_index = (clk_readl(clock->reg) >> clock->src_shift) &
(BIT(clock->src_width) - 1);
- for (i = 0; i < __clk_get_num_parents(hw->clk); i++) {
+ for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
if (clock->parents[i] == hw_index)
return i;
}
pr_err("%s: %s DIV6 clock set to invalid parent %u\n",
- __func__, __clk_get_name(hw->clk), hw_index);
+ __func__, clk_hw_get_name(hw), hw_index);
return 0;
}
@@ -149,7 +149,7 @@ static int cpg_div6_clock_set_parent(struct clk_hw *hw, u8 index)
u8 hw_index;
u32 mask;
- if (index >= __clk_get_num_parents(hw->clk))
+ if (index >= clk_hw_get_num_parents(hw))
return -EINVAL;
mask = ~((BIT(clock->src_width) - 1) << clock->src_shift);
diff --git a/kernel/drivers/clk/shmobile/clk-emev2.c b/kernel/drivers/clk/shmobile/clk-emev2.c
index 6c7c929c7..a91825471 100644
--- a/kernel/drivers/clk/shmobile/clk-emev2.c
+++ b/kernel/drivers/clk/shmobile/clk-emev2.c
@@ -28,13 +28,15 @@
#define USIBU1_RSTCTRL 0x0ac
#define USIBU2_RSTCTRL 0x0b0
#define USIBU3_RSTCTRL 0x0b4
+#define IIC0_RSTCTRL 0x0dc
+#define IIC1_RSTCTRL 0x0e0
#define STI_RSTCTRL 0x124
#define STI_CLKSEL 0x688
static DEFINE_SPINLOCK(lock);
/* not pretty, but hey */
-void __iomem *smu_base;
+static void __iomem *smu_base;
static void __init emev2_smu_write(unsigned long value, int offs)
{
@@ -66,6 +68,10 @@ static void __init emev2_smu_init(void)
emev2_smu_write(2, USIBU1_RSTCTRL);
emev2_smu_write(2, USIBU2_RSTCTRL);
emev2_smu_write(2, USIBU3_RSTCTRL);
+
+ /* deassert reset for IIC0->IIC1 */
+ emev2_smu_write(1, IIC0_RSTCTRL);
+ emev2_smu_write(1, IIC1_RSTCTRL);
}
static void __init emev2_smu_clkdiv_init(struct device_node *np)
diff --git a/kernel/drivers/clk/shmobile/clk-mstp.c b/kernel/drivers/clk/shmobile/clk-mstp.c
index 2d2fe773a..3b09716eb 100644
--- a/kernel/drivers/clk/shmobile/clk-mstp.c
+++ b/kernel/drivers/clk/shmobile/clk-mstp.c
@@ -2,6 +2,7 @@
* R-Car MSTP clocks
*
* Copyright (C) 2013 Ideas On Board SPRL
+ * Copyright (C) 2015 Glider bvba
*
* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
*
@@ -10,11 +11,16 @@
* the Free Software Foundation; version 2 of the License.
*/
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
+#include <linux/clk/shmobile.h>
+#include <linux/device.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/pm_clock.h>
+#include <linux/pm_domain.h>
#include <linux/spinlock.h>
/*
@@ -208,7 +214,7 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
break;
if (clkidx >= MSTP_MAX_CLOCKS) {
- pr_err("%s: invalid clock %s %s index %u)\n",
+ pr_err("%s: invalid clock %s %s index %u\n",
__func__, np->name, name, clkidx);
continue;
}
@@ -236,3 +242,88 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
of_clk_add_provider(np, of_clk_src_onecell_get, &group->data);
}
CLK_OF_DECLARE(cpg_mstp_clks, "renesas,cpg-mstp-clocks", cpg_mstp_clocks_init);
+
+
+#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
+int cpg_mstp_attach_dev(struct generic_pm_domain *domain, struct device *dev)
+{
+ struct device_node *np = dev->of_node;
+ struct of_phandle_args clkspec;
+ struct clk *clk;
+ int i = 0;
+ int error;
+
+ while (!of_parse_phandle_with_args(np, "clocks", "#clock-cells", i,
+ &clkspec)) {
+ if (of_device_is_compatible(clkspec.np,
+ "renesas,cpg-mstp-clocks"))
+ goto found;
+
+ /* BSC on r8a73a4/sh73a0 uses zb_clk instead of an mstp clock */
+ if (!strcmp(clkspec.np->name, "zb_clk"))
+ goto found;
+
+ of_node_put(clkspec.np);
+ i++;
+ }
+
+ return 0;
+
+found:
+ clk = of_clk_get_from_provider(&clkspec);
+ of_node_put(clkspec.np);
+
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ error = pm_clk_create(dev);
+ if (error) {
+ dev_err(dev, "pm_clk_create failed %d\n", error);
+ goto fail_put;
+ }
+
+ error = pm_clk_add_clk(dev, clk);
+ if (error) {
+ dev_err(dev, "pm_clk_add_clk %pC failed %d\n", clk, error);
+ goto fail_destroy;
+ }
+
+ return 0;
+
+fail_destroy:
+ pm_clk_destroy(dev);
+fail_put:
+ clk_put(clk);
+ return error;
+}
+
+void cpg_mstp_detach_dev(struct generic_pm_domain *domain, struct device *dev)
+{
+ if (!list_empty(&dev->power.subsys_data->clock_list))
+ pm_clk_destroy(dev);
+}
+
+void __init cpg_mstp_add_clk_domain(struct device_node *np)
+{
+ struct generic_pm_domain *pd;
+ u32 ncells;
+
+ if (of_property_read_u32(np, "#power-domain-cells", &ncells)) {
+ pr_warn("%s lacks #power-domain-cells\n", np->full_name);
+ return;
+ }
+
+ pd = kzalloc(sizeof(*pd), GFP_KERNEL);
+ if (!pd)
+ return;
+
+ pd->name = np->name;
+
+ pd->flags = GENPD_FLAG_PM_CLK;
+ pm_genpd_init(pd, &simple_qos_governor, false);
+ pd->attach_dev = cpg_mstp_attach_dev;
+ pd->detach_dev = cpg_mstp_detach_dev;
+
+ of_genpd_add_provider_simple(np, pd);
+}
+#endif /* !CONFIG_PM_GENERIC_DOMAINS_OF */
diff --git a/kernel/drivers/clk/shmobile/clk-r8a73a4.c b/kernel/drivers/clk/shmobile/clk-r8a73a4.c
index 29b9a0b00..9326204be 100644
--- a/kernel/drivers/clk/shmobile/clk-r8a73a4.c
+++ b/kernel/drivers/clk/shmobile/clk-r8a73a4.c
@@ -9,10 +9,10 @@
*/
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
#include <linux/clk/shmobile.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/spinlock.h>
diff --git a/kernel/drivers/clk/shmobile/clk-r8a7740.c b/kernel/drivers/clk/shmobile/clk-r8a7740.c
index 1e2eaae21..1e6b1da58 100644
--- a/kernel/drivers/clk/shmobile/clk-r8a7740.c
+++ b/kernel/drivers/clk/shmobile/clk-r8a7740.c
@@ -9,10 +9,10 @@
*/
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
#include <linux/clk/shmobile.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/spinlock.h>
diff --git a/kernel/drivers/clk/shmobile/clk-r8a7778.c b/kernel/drivers/clk/shmobile/clk-r8a7778.c
index cb33b5727..b1741551f 100644
--- a/kernel/drivers/clk/shmobile/clk-r8a7778.c
+++ b/kernel/drivers/clk/shmobile/clk-r8a7778.c
@@ -9,9 +9,9 @@
*/
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
#include <linux/clk/shmobile.h>
#include <linux/of_address.h>
+#include <linux/slab.h>
struct r8a7778_cpg {
struct clk_onecell_data data;
@@ -20,10 +20,10 @@ struct r8a7778_cpg {
};
/* PLL multipliers per bits 11, 12, and 18 of MODEMR */
-struct {
+static const struct {
unsigned long plla_mult;
unsigned long pllb_mult;
-} r8a7778_rates[] __initdata = {
+} r8a7778_rates[] __initconst = {
[0] = { 21, 21 },
[1] = { 24, 24 },
[2] = { 28, 28 },
@@ -34,10 +34,10 @@ struct {
};
/* Clock dividers per bits 1 and 2 of MODEMR */
-struct {
+static const struct {
const char *name;
unsigned int div[4];
-} r8a7778_divs[6] __initdata = {
+} r8a7778_divs[6] __initconst = {
{ "b", { 12, 12, 16, 18 } },
{ "out", { 12, 12, 16, 18 } },
{ "p", { 16, 12, 16, 12 } },
@@ -124,6 +124,8 @@ static void __init r8a7778_cpg_clocks_init(struct device_node *np)
}
of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
+
+ cpg_mstp_add_clk_domain(np);
}
CLK_OF_DECLARE(r8a7778_cpg_clks, "renesas,r8a7778-cpg-clocks",
diff --git a/kernel/drivers/clk/shmobile/clk-r8a7779.c b/kernel/drivers/clk/shmobile/clk-r8a7779.c
index 652ecacb6..92275c5f2 100644
--- a/kernel/drivers/clk/shmobile/clk-r8a7779.c
+++ b/kernel/drivers/clk/shmobile/clk-r8a7779.c
@@ -11,12 +11,12 @@
*/
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
#include <linux/clk/shmobile.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/slab.h>
#include <linux/spinlock.h>
#include <dt-bindings/clock/r8a7779-clock.h>
@@ -168,6 +168,8 @@ static void __init r8a7779_cpg_clocks_init(struct device_node *np)
}
of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
+
+ cpg_mstp_add_clk_domain(np);
}
CLK_OF_DECLARE(r8a7779_cpg_clks, "renesas,r8a7779-cpg-clocks",
r8a7779_cpg_clocks_init);
diff --git a/kernel/drivers/clk/shmobile/clk-rcar-gen2.c b/kernel/drivers/clk/shmobile/clk-rcar-gen2.c
index acfb6d7db..745496f7e 100644
--- a/kernel/drivers/clk/shmobile/clk-rcar-gen2.c
+++ b/kernel/drivers/clk/shmobile/clk-rcar-gen2.c
@@ -11,13 +11,13 @@
*/
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
#include <linux/clk/shmobile.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/math64.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/slab.h>
#include <linux/spinlock.h>
struct rcar_gen2_cpg {
@@ -415,6 +415,8 @@ static void __init rcar_gen2_cpg_clocks_init(struct device_node *np)
}
of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
+
+ cpg_mstp_add_clk_domain(np);
}
CLK_OF_DECLARE(rcar_gen2_cpg_clks, "renesas,rcar-gen2-cpg-clocks",
rcar_gen2_cpg_clocks_init);
diff --git a/kernel/drivers/clk/shmobile/clk-rz.c b/kernel/drivers/clk/shmobile/clk-rz.c
index 7e68e8630..9766e3cb5 100644
--- a/kernel/drivers/clk/shmobile/clk-rz.c
+++ b/kernel/drivers/clk/shmobile/clk-rz.c
@@ -10,6 +10,7 @@
*/
#include <linux/clk-provider.h>
+#include <linux/clk/shmobile.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/of.h>
@@ -99,5 +100,7 @@ static void __init rz_cpg_clocks_init(struct device_node *np)
}
of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
+
+ cpg_mstp_add_clk_domain(np);
}
CLK_OF_DECLARE(rz_cpg_clks, "renesas,rz-cpg-clocks", rz_cpg_clocks_init);
diff --git a/kernel/drivers/clk/shmobile/clk-sh73a0.c b/kernel/drivers/clk/shmobile/clk-sh73a0.c
index cd529cfe4..8966f8bbf 100644
--- a/kernel/drivers/clk/shmobile/clk-sh73a0.c
+++ b/kernel/drivers/clk/shmobile/clk-sh73a0.c
@@ -9,12 +9,12 @@
*/
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
#include <linux/clk/shmobile.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/slab.h>
#include <linux/spinlock.h>
struct sh73a0_cpg {