diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 16f7d33421d8b63bad61770b638b1034c2dac92e..c45554957499ea608a176d5515be5f21f21adf7c 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -201,6 +201,7 @@ source "drivers/clk/bcm/Kconfig"
source "drivers/clk/hisilicon/Kconfig"
source "drivers/clk/mvebu/Kconfig"
source "drivers/clk/qcom/Kconfig"
+source "drivers/clk/renesas/Kconfig"
source "drivers/clk/samsung/Kconfig"
source "drivers/clk/tegra/Kconfig"
source "drivers/clk/ti/Kconfig"
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
new file mode 100644
index 0000000000000000000000000000000000000000..2115ce410cfb4bc9607744ac03ff506fb330adf8
--- /dev/null
+++ b/drivers/clk/renesas/Kconfig
@@ -0,0 +1,16 @@
+config CLK_RENESAS_CPG_MSSR
+ bool
+ default y if ARCH_R8A7795
+
+config CLK_RENESAS_CPG_MSTP
+ bool
+ default y if ARCH_R7S72100
+ default y if ARCH_R8A73A4
+ default y if ARCH_R8A7740
+ default y if ARCH_R8A7778
+ default y if ARCH_R8A7779
+ default y if ARCH_R8A7790
+ default y if ARCH_R8A7791
+ default y if ARCH_R8A7793
+ default y if ARCH_R8A7794
+ default y if ARCH_SH73A0
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index 7e2579b303267d8badc1feb9d242af08b6260318..ead8bb8435249493958f2320c5c15aca9430fa66 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -1,13 +1,15 @@
obj-$(CONFIG_ARCH_EMEV2) += clk-emev2.o
-obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o clk-mstp.o
-obj-$(CONFIG_ARCH_R8A73A4) += clk-r8a73a4.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7778) += clk-r8a7778.o clk-mstp.o
-obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o clk-mstp.o
-obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7793) += clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7794) += clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7795) += renesas-cpg-mssr.o \
- r8a7795-cpg-mssr.o clk-div6.o
-obj-$(CONFIG_ARCH_SH73A0) += clk-sh73a0.o clk-mstp.o clk-div6.o
+obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o
+obj-$(CONFIG_ARCH_R8A73A4) += clk-r8a73a4.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7778) += clk-r8a7778.o
+obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o
+obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7793) += clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7794) += clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7795) += r8a7795-cpg-mssr.o
+obj-$(CONFIG_ARCH_SH73A0) += clk-sh73a0.o clk-div6.o
+
+obj-$(CONFIG_CLK_RENESAS_CPG_MSSR) += renesas-cpg-mssr.o clk-div6.o
+obj-$(CONFIG_CLK_RENESAS_CPG_MSTP) += clk-mstp.o
diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c
index 3d44e183aedd61c7fd28d15b6ede180033e0b6e1..8b597b9a380442e8bbbc17086a2c194be848a7f2 100644
--- a/drivers/clk/renesas/clk-mstp.c
+++ b/drivers/clk/renesas/clk-mstp.c
@@ -243,9 +243,7 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
}
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)
+int cpg_mstp_attach_dev(struct generic_pm_domain *unused, struct device *dev)
{
struct device_node *np = dev->of_node;
struct of_phandle_args clkspec;
@@ -297,7 +295,7 @@ int cpg_mstp_attach_dev(struct generic_pm_domain *domain, struct device *dev)
return error;
}
-void cpg_mstp_detach_dev(struct generic_pm_domain *domain, struct device *dev)
+void cpg_mstp_detach_dev(struct generic_pm_domain *unused, struct device *dev)
{
if (!list_empty(&dev->power.subsys_data->clock_list))
pm_clk_destroy(dev);
@@ -326,4 +324,3 @@ void __init cpg_mstp_add_clk_domain(struct device_node *np)
of_genpd_add_provider_simple(np, pd);
}
-#endif /* !CONFIG_PM_GENERIC_DOMAINS_OF */
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index b2198aef5ed4291291d30ca1df3cc2ba5ab5c9a0..6af7f5b6e8240b37d6155088b6ebafd73689f368 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -13,6 +13,7 @@
*/
#include <linux/bug.h>
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/device.h>
#include <linux/err.h>
@@ -26,6 +27,7 @@
#include "renesas-cpg-mssr.h"
+#define CPG_RCKCR 0x240
enum clk_ids {
/* Core Clock Outputs exported to DT */
@@ -50,6 +52,7 @@ enum clk_ids {
CLK_S3,
CLK_SDSRC,
CLK_SSPSRC,
+ CLK_RINT,
/* Module Clocks */
MOD_CLK_BASE
@@ -63,8 +66,12 @@ enum r8a7795_clk_types {
CLK_TYPE_GEN3_PLL3,
CLK_TYPE_GEN3_PLL4,
CLK_TYPE_GEN3_SD,
+ CLK_TYPE_GEN3_R,
};
+#define DEF_GEN3_SD(_name, _id, _parent, _offset) \
+ DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
+
static const struct cpg_core_clk r8a7795_core_clks[] __initconst = {
/* External Clock Inputs */
DEF_INPUT("extal", CLK_EXTAL),
@@ -102,10 +109,10 @@ static const struct cpg_core_clk r8a7795_core_clks[] __initconst = {
DEF_FIXED("s3d2", R8A7795_CLK_S3D2, CLK_S3, 2, 1),
DEF_FIXED("s3d4", R8A7795_CLK_S3D4, CLK_S3, 4, 1),
- DEF_SD("sd0", R8A7795_CLK_SD0, CLK_PLL1_DIV2, 0x0074),
- DEF_SD("sd1", R8A7795_CLK_SD1, CLK_PLL1_DIV2, 0x0078),
- DEF_SD("sd2", R8A7795_CLK_SD2, CLK_PLL1_DIV2, 0x0268),
- DEF_SD("sd3", R8A7795_CLK_SD3, CLK_PLL1_DIV2, 0x026c),
+ DEF_GEN3_SD("sd0", R8A7795_CLK_SD0, CLK_PLL1_DIV2, 0x0074),
+ DEF_GEN3_SD("sd1", R8A7795_CLK_SD1, CLK_PLL1_DIV2, 0x0078),
+ DEF_GEN3_SD("sd2", R8A7795_CLK_SD2, CLK_PLL1_DIV2, 0x0268),
+ DEF_GEN3_SD("sd3", R8A7795_CLK_SD3, CLK_PLL1_DIV2, 0x026c),
DEF_FIXED("cl", R8A7795_CLK_CL, CLK_PLL1_DIV2, 48, 1),
DEF_FIXED("cp", R8A7795_CLK_CP, CLK_EXTAL, 2, 1),
@@ -113,6 +120,11 @@ static const struct cpg_core_clk r8a7795_core_clks[] __initconst = {
DEF_DIV6P1("mso", R8A7795_CLK_MSO, CLK_PLL1_DIV4, 0x014),
DEF_DIV6P1("hdmi", R8A7795_CLK_HDMI, CLK_PLL1_DIV2, 0x250),
DEF_DIV6P1("canfd", R8A7795_CLK_CANFD, CLK_PLL1_DIV4, 0x244),
+
+ DEF_DIV6_RO("osc", R8A7795_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8),
+ DEF_DIV6_RO("r_int", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32),
+
+ DEF_BASE("r", R8A7795_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
};
static const struct mssr_mod_clk r8a7795_mod_clks[] __initconst = {
@@ -139,6 +151,7 @@ static const struct mssr_mod_clk r8a7795_mod_clks[] __initconst = {
DEF_MOD("usb3-if0", 328, R8A7795_CLK_S3D1),
DEF_MOD("usb-dmac0", 330, R8A7795_CLK_S3D1),
DEF_MOD("usb-dmac1", 331, R8A7795_CLK_S3D1),
+ DEF_MOD("rwdt0", 402, R8A7795_CLK_R),
DEF_MOD("intc-ex", 407, R8A7795_CLK_CP),
DEF_MOD("intc-ap", 408, R8A7795_CLK_S3D1),
DEF_MOD("audmac0", 502, R8A7795_CLK_S3D4),
@@ -148,6 +161,7 @@ static const struct mssr_mod_clk r8a7795_mod_clks[] __initconst = {
DEF_MOD("hscif2", 518, R8A7795_CLK_S3D1),
DEF_MOD("hscif1", 519, R8A7795_CLK_S3D1),
DEF_MOD("hscif0", 520, R8A7795_CLK_S3D1),
+ DEF_MOD("pwm", 523, R8A7795_CLK_S3D4),
DEF_MOD("fcpvd3", 600, R8A7795_CLK_S2D1),
DEF_MOD("fcpvd2", 601, R8A7795_CLK_S2D1),
DEF_MOD("fcpvd1", 602, R8A7795_CLK_S2D1),
@@ -578,6 +592,18 @@ struct clk * __init r8a7795_cpg_clk_register(struct device *dev,
case CLK_TYPE_GEN3_SD:
return cpg_sd_clk_register(core, base, __clk_get_name(parent));
+ case CLK_TYPE_GEN3_R:
+ /* RINT is default. Only if EXTALR is populated, we switch to it */
+ value = readl(base + CPG_RCKCR) & 0x3f;
+
+ if (clk_get_rate(clks[CLK_EXTALR])) {
+ parent = clks[CLK_EXTALR];
+ value |= BIT(15);
+ }
+
+ writel(value, base + CPG_RCKCR);
+ break;
+
default:
return ERR_PTR(-EINVAL);
}
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index 58e24b326a48bb810cfee9dfb519ea504409404d..1f2dc3629f0e02a037318b9b53fd3fc01af2c2d6 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -15,6 +15,7 @@
#include <linux/clk.h>
#include <linux/clk-provider.h>
+#include <linux/clk/renesas.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/mod_devicetable.h>
@@ -253,7 +254,7 @@ static void __init cpg_mssr_register_core_clk(const struct cpg_core_clk *core,
{
struct clk *clk = NULL, *parent;
struct device *dev = priv->dev;
- unsigned int id = core->id;
+ unsigned int id = core->id, div = core->div;
const char *parent_name;
WARN_DEBUG(id >= priv->num_core_clks);
@@ -266,6 +267,7 @@ static void __init cpg_mssr_register_core_clk(const struct cpg_core_clk *core,
case CLK_TYPE_FF:
case CLK_TYPE_DIV6P1:
+ case CLK_TYPE_DIV6_RO:
WARN_DEBUG(core->parent >= priv->num_core_clks);
parent = priv->clks[core->parent];
if (IS_ERR(parent)) {
@@ -274,13 +276,18 @@ static void __init cpg_mssr_register_core_clk(const struct cpg_core_clk *core,
}
parent_name = __clk_get_name(parent);
- if (core->type == CLK_TYPE_FF) {
- clk = clk_register_fixed_factor(NULL, core->name,
- parent_name, 0,
- core->mult, core->div);
- } else {
+
+ if (core->type == CLK_TYPE_DIV6_RO)
+ /* Multiply with the DIV6 register value */
+ div *= (readl(priv->base + core->offset) & 0x3f) + 1;
+
+ if (core->type == CLK_TYPE_DIV6P1) {
clk = cpg_div6_register(core->name, 1, &parent_name,
priv->base + core->offset);
+ } else {
+ clk = clk_register_fixed_factor(NULL, core->name,
+ parent_name, 0,
+ core->mult, div);
}
break;
@@ -375,8 +382,6 @@ static void __init cpg_mssr_register_mod_clk(const struct mssr_mod_clk *mod,
kfree(clock);
}
-
-#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
struct cpg_mssr_clk_domain {
struct generic_pm_domain genpd;
struct device_node *np;
@@ -384,6 +389,8 @@ struct cpg_mssr_clk_domain {
unsigned int core_pm_clks[0];
};
+static struct cpg_mssr_clk_domain *cpg_mssr_clk_domain;
+
static bool cpg_mssr_is_pm_clk(const struct of_phandle_args *clkspec,
struct cpg_mssr_clk_domain *pd)
{
@@ -407,17 +414,20 @@ static bool cpg_mssr_is_pm_clk(const struct of_phandle_args *clkspec,
}
}
-static int cpg_mssr_attach_dev(struct generic_pm_domain *genpd,
- struct device *dev)
+int cpg_mssr_attach_dev(struct generic_pm_domain *unused, struct device *dev)
{
- struct cpg_mssr_clk_domain *pd =
- container_of(genpd, struct cpg_mssr_clk_domain, genpd);
+ struct cpg_mssr_clk_domain *pd = cpg_mssr_clk_domain;
struct device_node *np = dev->of_node;
struct of_phandle_args clkspec;
struct clk *clk;
int i = 0;
int error;
+ if (!pd) {
+ dev_dbg(dev, "CPG/MSSR clock domain not yet available\n");
+ return -EPROBE_DEFER;
+ }
+
while (!of_parse_phandle_with_args(np, "clocks", "#clock-cells", i,
&clkspec)) {
if (cpg_mssr_is_pm_clk(&clkspec, pd))
@@ -457,8 +467,7 @@ static int cpg_mssr_attach_dev(struct generic_pm_domain *genpd,
return error;
}
-static void cpg_mssr_detach_dev(struct generic_pm_domain *genpd,
- struct device *dev)
+void cpg_mssr_detach_dev(struct generic_pm_domain *unused, struct device *dev)
{
if (!list_empty(&dev->power.subsys_data->clock_list))
pm_clk_destroy(dev);
@@ -487,19 +496,11 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev,
pm_genpd_init(genpd, &simple_qos_governor, false);
genpd->attach_dev = cpg_mssr_attach_dev;
genpd->detach_dev = cpg_mssr_detach_dev;
+ cpg_mssr_clk_domain = pd;
of_genpd_add_provider_simple(np, genpd);
return 0;
}
-#else
-static inline int cpg_mssr_add_clk_domain(struct device *dev,
- const unsigned int *core_pm_clks,
- unsigned int num_core_pm_clks)
-{
- return 0;
-}
-#endif /* !CONFIG_PM_GENERIC_DOMAINS_OF */
-
static const struct of_device_id cpg_mssr_match[] = {
#ifdef CONFIG_ARCH_R8A7795
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h
index 952b6957233b46be624afde93c8a37598dd3ea95..0d1e3e811e79bf431c0640667af9343b92a3cbf0 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.h
+++ b/drivers/clk/renesas/renesas-cpg-mssr.h
@@ -37,6 +37,7 @@ enum clk_types {
CLK_TYPE_IN, /* External Clock Input */
CLK_TYPE_FF, /* Fixed Factor Clock */
CLK_TYPE_DIV6P1, /* DIV6 Clock with 1 parent clock */
+ CLK_TYPE_DIV6_RO, /* DIV6 Clock read only with extra divisor */
/* Custom definitions start here */
CLK_TYPE_CUSTOM,
@@ -53,9 +54,8 @@ enum clk_types {
DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult)
#define DEF_DIV6P1(_name, _id, _parent, _offset) \
DEF_BASE(_name, _id, CLK_TYPE_DIV6P1, _parent, .offset = _offset)
-#define DEF_SD(_name, _id, _parent, _offset) \
- DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
-
+#define DEF_DIV6_RO(_name, _id, _parent, _offset, _div) \
+ DEF_BASE(_name, _id, CLK_TYPE_DIV6_RO, _parent, .offset = _offset, .div = _div, .mult = 1)
/*
* Definitions of Module Clocks
diff --git a/include/linux/clk/renesas.h b/include/linux/clk/renesas.h
index 7adfd80fbf55d48499143de084171a0218b20f00..ba6fa4148515e5c9959c21767820fe7363bd9713 100644
--- a/include/linux/clk/renesas.h
+++ b/include/linux/clk/renesas.h
@@ -24,12 +24,20 @@ void r8a7778_clocks_init(u32 mode);
void r8a7779_clocks_init(u32 mode);
void rcar_gen2_clocks_init(u32 mode);
-#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
void cpg_mstp_add_clk_domain(struct device_node *np);
-int cpg_mstp_attach_dev(struct generic_pm_domain *domain, struct device *dev);
-void cpg_mstp_detach_dev(struct generic_pm_domain *domain, struct device *dev);
+#ifdef CONFIG_CLK_RENESAS_CPG_MSTP
+int cpg_mstp_attach_dev(struct generic_pm_domain *unused, struct device *dev);
+void cpg_mstp_detach_dev(struct generic_pm_domain *unused, struct device *dev);
#else
-static inline void cpg_mstp_add_clk_domain(struct device_node *np) {}
+#define cpg_mstp_attach_dev NULL
+#define cpg_mstp_detach_dev NULL
#endif
+#ifdef CONFIG_CLK_RENESAS_CPG_MSSR
+int cpg_mssr_attach_dev(struct generic_pm_domain *unused, struct device *dev);
+void cpg_mssr_detach_dev(struct generic_pm_domain *unused, struct device *dev);
+#else
+#define cpg_mssr_attach_dev NULL
+#define cpg_mssr_detach_dev NULL
+#endif
#endif