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Commit a93fed09 authored by Simon Horman's avatar Simon Horman
Browse files

Merge tag 'clk-renesas-for-v4.7-tag2' of...

Merge tag 'clk-renesas-for-v4.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into rcar-sysc-for-v4.7

clk: renesas: R-Car SYSC PM Domain Preparation

  - Export the CPG/MSSR and CPG/MSTP attach/detach_dev callbacks, so
    they can be called by the R-Car SYSC PM Domain driver.
parents 839a04d8 2066390a
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+1 −0
Original line number Diff line number Diff line
@@ -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"
+16 −0
Original line number Diff line number Diff line
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
+14 −12
Original line number Diff line number Diff line
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
+2 −5
Original line number Diff line number Diff line
@@ -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 */
+30 −4
Original line number Diff line number Diff line
@@ -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);
	}
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