[PATCH 0/4] clk: renesas: Add R-Car D3 support

[PATCH 0/4] clk: renesas: Add R-Car D3 support

[Geert Uytterhoeven]

	Hi Mike, Stephen,

This patch series adds support for clocks on the R-Car D3 SoC.

As usual, this is meant to be queued up in clk-renesas-for-v4.14.

Thanks!

Geert Uytterhoeven (4):
  clk: renesas: Add r8a77995 CPG Core Clock Definitions
  clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3
  clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks
  clk: renesas: cpg-mssr: Add R8A77995 support

 .../devicetree/bindings/clock/renesas,cpg-mssr.txt |   3 +-
 drivers/clk/renesas/Kconfig                        |   5 +
 drivers/clk/renesas/Makefile                       |   1 +
 drivers/clk/renesas/r8a7795-cpg-mssr.c             |  34 +--
 drivers/clk/renesas/r8a7796-cpg-mssr.c             |  34 +--
 drivers/clk/renesas/r8a77995-cpg-mssr.c            | 236 +++++++++++++++++++++
 drivers/clk/renesas/rcar-gen3-cpg.c                |  22 +-
 drivers/clk/renesas/rcar-gen3-cpg.h                |  15 +-
 drivers/clk/renesas/renesas-cpg-mssr.c             |   6 +
 drivers/clk/renesas/renesas-cpg-mssr.h             |   1 +
 include/dt-bindings/clock/r8a77995-cpg-mssr.h      |  57 +++++
 11 files changed, 375 insertions(+), 39 deletions(-)
 create mode 100644 drivers/clk/renesas/r8a77995-cpg-mssr.c
 create mode 100644 include/dt-bindings/clock/r8a77995-cpg-mssr.h

-- 
2.7.4

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

[PATCH 1/4] clk: renesas: Add r8a77995 CPG Core Clock Definitions

[Geert Uytterhoeven]

Add all R-Car D3 Clock Pulse Generator Core Clock Outputs, as listed
in Table 8.2f ("List of Clocks [R-Car D3]") of the R-Car Series, 3rd
Generation Hardware User's Manual (Rev. 0.55, Jun. 30, 2017).

Note that internal CPG clocks (S0, S1, S2, S3, S1C, S3C, SDSRC, and
SSPSRC) are not included, as they are used as internal clock sources
only, and never referenced from DT.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: devicetree@vger.kernel.org
---
 include/dt-bindings/clock/r8a77995-cpg-mssr.h | 57 +++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 include/dt-bindings/clock/r8a77995-cpg-mssr.h

diff --git a/include/dt-bindings/clock/r8a77995-cpg-mssr.h b/include/dt-bindings/clock/r8a77995-cpg-mssr.h
new file mode 100644
index 0000000000000000..4e8ae3dee5901b01
--- /dev/null
+++ b/include/dt-bindings/clock/r8a77995-cpg-mssr.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2017 Glider bvba
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __DT_BINDINGS_CLOCK_R8A77995_CPG_MSSR_H__
+#define __DT_BINDINGS_CLOCK_R8A77995_CPG_MSSR_H__
+
+#include <dt-bindings/clock/renesas-cpg-mssr.h>
+
+/* r8a77995 CPG Core Clocks */
+#define R8A77995_CLK_Z2			0
+#define R8A77995_CLK_ZG			1
+#define R8A77995_CLK_ZTR		2
+#define R8A77995_CLK_ZT			3
+#define R8A77995_CLK_ZX			4
+#define R8A77995_CLK_S0D1		5
+#define R8A77995_CLK_S1D1		6
+#define R8A77995_CLK_S1D2		7
+#define R8A77995_CLK_S1D4		8
+#define R8A77995_CLK_S2D1		9
+#define R8A77995_CLK_S2D2		10
+#define R8A77995_CLK_S2D4		11
+#define R8A77995_CLK_S3D1		12
+#define R8A77995_CLK_S3D2		13
+#define R8A77995_CLK_S3D4		14
+#define R8A77995_CLK_S1D4C		15
+#define R8A77995_CLK_S3D1C		16
+#define R8A77995_CLK_S3D2C		17
+#define R8A77995_CLK_S3D4C		18
+#define R8A77995_CLK_LB			19
+#define R8A77995_CLK_CL			20
+#define R8A77995_CLK_ZB3		21
+#define R8A77995_CLK_ZB3D2		22
+#define R8A77995_CLK_CR			23
+#define R8A77995_CLK_CRD2		24
+#define R8A77995_CLK_SD0H		25
+#define R8A77995_CLK_SD0		26
+#define R8A77995_CLK_SSP2		27
+#define R8A77995_CLK_SSP1		28
+#define R8A77995_CLK_RPC		29
+#define R8A77995_CLK_RPCD2		30
+#define R8A77995_CLK_ZA2		31
+#define R8A77995_CLK_ZA8		32
+#define R8A77995_CLK_Z2D		33
+#define R8A77995_CLK_CANFD		34
+#define R8A77995_CLK_MSO		35
+#define R8A77995_CLK_R			36
+#define R8A77995_CLK_OSC		37
+#define R8A77995_CLK_LV0		38
+#define R8A77995_CLK_LV1		39
+#define R8A77995_CLK_CP			40
+
+#endif /* __DT_BINDINGS_CLOCK_R8A77995_CPG_MSSR_H__ */
-- 
2.7.4

Re: [PATCH 1/4] clk: renesas: Add r8a77995 CPG Core Clock Definitions

[Stephen Boyd]

On 07/20, Geert Uytterhoeven wrote:
> Add all R-Car D3 Clock Pulse Generator Core Clock Outputs, as listed
> in Table 8.2f ("List of Clocks [R-Car D3]") of the R-Car Series, 3rd
> Generation Hardware User's Manual (Rev. 0.55, Jun. 30, 2017).
> 
> Note that internal CPG clocks (S0, S1, S2, S3, S1C, S3C, SDSRC, and
> SSPSRC) are not included, as they are used as internal clock sources
> only, and never referenced from DT.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: devicetree@vger.kernel.org
> ---

Acked-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH 2/4] clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3

[Geert Uytterhoeven]

On some R-Car Gen3 SoCs (e.g. R-Car D3), PLL1 and PLL3 use a divider
value different from one.  Extend struct rcar_gen3_cpg_pll_config to handle
this.  As all multipliers and dividers are small, table size increase
can be kept limited by storing them in u8s instead of unsigned ints,
which saves ca. 0.5 KiB for a generic kernel.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r8a7795-cpg-mssr.c | 34 +++++++++++++++++-----------------
 drivers/clk/renesas/r8a7796-cpg-mssr.c | 34 +++++++++++++++++-----------------
 drivers/clk/renesas/rcar-gen3-cpg.c    |  2 ++
 drivers/clk/renesas/rcar-gen3-cpg.h    |  8 +++++---
 4 files changed, 41 insertions(+), 37 deletions(-)

diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index c091a8e024b88d32..762b2f8824f118de 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -305,23 +305,23 @@ static const unsigned int r8a7795_crit_mod_clks[] __initconst = {
 					 (((md) & BIT(17)) >> 17))
 
 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
-	/* EXTAL div	PLL1 mult	PLL3 mult */
-	{ 1,		192,		192,	},
-	{ 1,		192,		128,	},
-	{ 0, /* Prohibited setting */		},
-	{ 1,		192,		192,	},
-	{ 1,		160,		160,	},
-	{ 1,		160,		106,	},
-	{ 0, /* Prohibited setting */		},
-	{ 1,		160,		160,	},
-	{ 1,		128,		128,	},
-	{ 1,		128,		84,	},
-	{ 0, /* Prohibited setting */		},
-	{ 1,		128,		128,	},
-	{ 2,		192,		192,	},
-	{ 2,		192,		128,	},
-	{ 0, /* Prohibited setting */		},
-	{ 2,		192,		192,	},
+	/* EXTAL div	PLL1 mult/div	PLL3 mult/div */
+	{ 1,		192,	1,	192,	1,	},
+	{ 1,		192,	1,	128,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		192,	1,	192,	1,	},
+	{ 1,		160,	1,	160,	1,	},
+	{ 1,		160,	1,	106,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		160,	1,	160,	1,	},
+	{ 1,		128,	1,	128,	1,	},
+	{ 1,		128,	1,	84,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		128,	1,	128,	1,	},
+	{ 2,		192,	1,	192,	1,	},
+	{ 2,		192,	1,	128,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 2,		192,	1,	192,	1,	},
 };
 
 static const struct soc_device_attribute r8a7795es1[] __initconst = {
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index acc6d0f153e1b233..22ba3c497aba9701 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -277,23 +277,23 @@ static const unsigned int r8a7796_crit_mod_clks[] __initconst = {
 					 (((md) & BIT(17)) >> 17))
 
 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
-	/* EXTAL div	PLL1 mult	PLL3 mult */
-	{ 1,		192,		192,	},
-	{ 1,		192,		128,	},
-	{ 0, /* Prohibited setting */		},
-	{ 1,		192,		192,	},
-	{ 1,		160,		160,	},
-	{ 1,		160,		106,	},
-	{ 0, /* Prohibited setting */		},
-	{ 1,		160,		160,	},
-	{ 1,		128,		128,	},
-	{ 1,		128,		84,	},
-	{ 0, /* Prohibited setting */		},
-	{ 1,		128,		128,	},
-	{ 2,		192,		192,	},
-	{ 2,		192,		128,	},
-	{ 0, /* Prohibited setting */		},
-	{ 2,		192,		192,	},
+	/* EXTAL div	PLL1 mult/div	PLL3 mult/div */
+	{ 1,		192,	1,	192,	1,	},
+	{ 1,		192,	1,	128,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		192,	1,	192,	1,	},
+	{ 1,		160,	1,	160,	1,	},
+	{ 1,		160,	1,	106,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		160,	1,	160,	1,	},
+	{ 1,		128,	1,	128,	1,	},
+	{ 1,		128,	1,	84,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		128,	1,	128,	1,	},
+	{ 2,		192,	1,	192,	1,	},
+	{ 2,		192,	1,	128,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 2,		192,	1,	192,	1,	},
 };
 
 static int __init r8a7796_cpg_mssr_init(struct device *dev)
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index d4d27cf6110d385f..3f922fea9671fb4c 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -296,6 +296,7 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 
 	case CLK_TYPE_GEN3_PLL1:
 		mult = cpg_pll_config->pll1_mult;
+		div = cpg_pll_config->pll1_div;
 		break;
 
 	case CLK_TYPE_GEN3_PLL2:
@@ -313,6 +314,7 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 
 	case CLK_TYPE_GEN3_PLL3:
 		mult = cpg_pll_config->pll3_mult;
+		div = cpg_pll_config->pll3_div;
 		break;
 
 	case CLK_TYPE_GEN3_PLL4:
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.h b/drivers/clk/renesas/rcar-gen3-cpg.h
index 073be54b5d038ae3..4eaf02955580a938 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.h
+++ b/drivers/clk/renesas/rcar-gen3-cpg.h
@@ -26,9 +26,11 @@ enum rcar_gen3_clk_types {
 	DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
 
 struct rcar_gen3_cpg_pll_config {
-	unsigned int extal_div;
-	unsigned int pll1_mult;
-	unsigned int pll3_mult;
+	u8 extal_div;
+	u8 pll1_mult;
+	u8 pll1_div;
+	u8 pll3_mult;
+	u8 pll3_div;
 };
 
 #define CPG_RCKCR	0x240
-- 
2.7.4

Re: [PATCH 2/4] clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3

[Stephen Boyd]

On 07/20, Geert Uytterhoeven wrote:
> On some R-Car Gen3 SoCs (e.g. R-Car D3), PLL1 and PLL3 use a divider
> value different from one.  Extend struct rcar_gen3_cpg_pll_config to handle
> this.  As all multipliers and dividers are small, table size increase
> can be kept limited by storing them in u8s instead of unsigned ints,
> which saves ca. 0.5 KiB for a generic kernel.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---

Acked-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH 3/4] clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks

[Geert Uytterhoeven]

On R-Car Gen3 SoCs with a Spread Spectrum Clock Generator (e.g. R-Car
D3), a peripheral clock divider has been added, to select between clean
and spread spectrum parents.

Add a new clock type to the R-Car Gen3 driver core to handle this.
To avoid increasing the size of struct cpg_core_clk, both parents and
dividers are stored in the existing parent resp. div fields.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/rcar-gen3-cpg.c | 20 +++++++++++++++++++-
 drivers/clk/renesas/rcar-gen3-cpg.h |  7 +++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index 3f922fea9671fb4c..9511058165475dd7 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -272,7 +272,7 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 	unsigned int div = 1;
 	u32 value;
 
-	parent = clks[core->parent];
+	parent = clks[core->parent & 0xffff];	/* CLK_TYPE_PE uses high bits */
 	if (IS_ERR(parent))
 		return ERR_CAST(parent);
 
@@ -355,6 +355,24 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 			parent = clks[cpg_clk_extalr];
 		break;
 
+	case CLK_TYPE_GEN3_PE:
+		/*
+		 * Peripheral clock with a fixed divider, selectable between
+		 * clean and spread spectrum parents using MD12
+		 */
+		if (cpg_mode & BIT(12)) {
+			/* Clean */
+			div = core->div & 0xffff;
+		} else {
+			/* SCCG */
+			parent = clks[core->parent >> 16];
+			if (IS_ERR(parent))
+				return ERR_CAST(parent);
+			div = core->div >> 16;
+		}
+		mult = 1;
+		break;
+
 	default:
 		return ERR_PTR(-EINVAL);
 	}
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.h b/drivers/clk/renesas/rcar-gen3-cpg.h
index 4eaf02955580a938..d756ef8b78eb6c02 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.h
+++ b/drivers/clk/renesas/rcar-gen3-cpg.h
@@ -20,11 +20,18 @@ enum rcar_gen3_clk_types {
 	CLK_TYPE_GEN3_PLL4,
 	CLK_TYPE_GEN3_SD,
 	CLK_TYPE_GEN3_R,
+	CLK_TYPE_GEN3_PE,
 };
 
 #define DEF_GEN3_SD(_name, _id, _parent, _offset)	\
 	DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
 
+#define DEF_GEN3_PE(_name, _id, _parent_sscg, _div_sscg, _parent_clean, \
+		    _div_clean) \
+	DEF_BASE(_name, _id, CLK_TYPE_GEN3_PE,			\
+		 (_parent_sscg) << 16 | (_parent_clean),	\
+		 .div = (_div_sscg) << 16 | (_div_clean))
+
 struct rcar_gen3_cpg_pll_config {
 	u8 extal_div;
 	u8 pll1_mult;
-- 
2.7.4

Re: [PATCH 3/4] clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks

[Stephen Boyd]

On 07/20, Geert Uytterhoeven wrote:
> On R-Car Gen3 SoCs with a Spread Spectrum Clock Generator (e.g. R-Car
> D3), a peripheral clock divider has been added, to select between clean
> and spread spectrum parents.
> 
> Add a new clock type to the R-Car Gen3 driver core to handle this.
> To avoid increasing the size of struct cpg_core_clk, both parents and
> dividers are stored in the existing parent resp. div fields.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---

Acked-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH 4/4] clk: renesas: cpg-mssr: Add R8A77995 support

[Geert Uytterhoeven]

Add R-Car D3 (R8A77995) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 CPG code.

Based on the R-Car Series, 3rd Generation Hardware User's Manual, Rev.
0.55, Jun. 30, 2017.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: devicetree@vger.kernel.org
---
Notes:
  - I couldn't verify the parent clocks of all module clocks.
    For e.g. SYS-DMAC and some multimedia devices, I looked at how
    related clocks were changed among R-Car H3, M3-W, and D3.
  - For now, R clock handling is hardwired to internal RCLK.
---
 .../devicetree/bindings/clock/renesas,cpg-mssr.txt |   3 +-
 drivers/clk/renesas/Kconfig                        |   5 +
 drivers/clk/renesas/Makefile                       |   1 +
 drivers/clk/renesas/r8a77995-cpg-mssr.c            | 236 +++++++++++++++++++++
 drivers/clk/renesas/renesas-cpg-mssr.c             |   6 +
 drivers/clk/renesas/renesas-cpg-mssr.h             |   1 +
 6 files changed, 251 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/renesas/r8a77995-cpg-mssr.c

diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
index 0cd894f987a38e81..27cec325853852fc 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
@@ -22,6 +22,7 @@ Required Properties:
       - "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2)
       - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3)
       - "renesas,r8a7796-cpg-mssr" for the r8a7796 SoC (R-Car M3-W)
+      - "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3)
 
   - reg: Base address and length of the memory resource used by the CPG/MSSR
     block
@@ -30,7 +31,7 @@ Required Properties:
     clock-names
   - clock-names: List of external parent clock names. Valid names are:
       - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794,
-		 r8a7795, r8a7796)
+		 r8a7795, r8a7796, r8a77995)
       - "extalr" (r8a7795, r8a7796)
       - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794)
 
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index 85526ca3920229c8..eee076deb739c500 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -15,6 +15,7 @@ config CLK_RENESAS
 	select CLK_R8A7794 if ARCH_R8A7794
 	select CLK_R8A7795 if ARCH_R8A7795
 	select CLK_R8A7796 if ARCH_R8A7796
+	select CLK_R8A77995 if ARCH_R8A77995
 	select CLK_SH73A0 if ARCH_SH73A0
 
 if CLK_RENESAS
@@ -94,6 +95,10 @@ config CLK_R8A7796
 	bool "R-Car M3-W clock support" if COMPILE_TEST
 	select CLK_RCAR_GEN3_CPG
 
+config CLK_R8A77995
+	bool "R-Car D3 clock support" if COMPILE_TEST
+	select CLK_RCAR_GEN3_CPG
+
 config CLK_SH73A0
 	bool "SH-Mobile AG5 clock support" if COMPILE_TEST
 	select CLK_RENESAS_CPG_MSTP
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index 02d04124371f717a..a3bb1fadf1a6f9e7 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_CLK_R8A7792)		+= r8a7792-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7794)		+= r8a7794-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7795)		+= r8a7795-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7796)		+= r8a7796-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A77995)		+= r8a77995-cpg-mssr.o
 obj-$(CONFIG_CLK_SH73A0)		+= clk-sh73a0.o
 
 # Family
diff --git a/drivers/clk/renesas/r8a77995-cpg-mssr.c b/drivers/clk/renesas/r8a77995-cpg-mssr.c
new file mode 100644
index 0000000000000000..e594cf8ee63b64e0
--- /dev/null
+++ b/drivers/clk/renesas/r8a77995-cpg-mssr.c
@@ -0,0 +1,236 @@
+/*
+ * r8a77995 Clock Pulse Generator / Module Standby and Software Reset
+ *
+ * Copyright (C) 2017 Glider bvba
+ *
+ * Based on r8a7795-cpg-mssr.c
+ *
+ * Copyright (C) 2015 Glider bvba
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/soc/renesas/rcar-rst.h>
+
+#include <dt-bindings/clock/r8a77995-cpg-mssr.h>
+
+#include "renesas-cpg-mssr.h"
+#include "rcar-gen3-cpg.h"
+
+enum clk_ids {
+	/* Core Clock Outputs exported to DT */
+	LAST_DT_CORE_CLK = R8A77995_CLK_CP,
+
+	/* External Input Clocks */
+	CLK_EXTAL,
+
+	/* Internal Core Clocks */
+	CLK_MAIN,
+	CLK_PLL0,
+	CLK_PLL1,
+	CLK_PLL3,
+	CLK_PLL0D2,
+	CLK_PLL0D3,
+	CLK_PLL0D5,
+	CLK_PLL1D2,
+	CLK_PE,
+	CLK_S0,
+	CLK_S1,
+	CLK_S2,
+	CLK_S3,
+	CLK_SDSRC,
+	CLK_SSPSRC,
+
+	/* Module Clocks */
+	MOD_CLK_BASE
+};
+
+static const struct cpg_core_clk r8a77995_core_clks[] __initconst = {
+	/* External Clock Inputs */
+	DEF_INPUT("extal",     CLK_EXTAL),
+
+	/* Internal Core Clocks */
+	DEF_BASE(".main",      CLK_MAIN, CLK_TYPE_GEN3_MAIN,       CLK_EXTAL),
+	DEF_BASE(".pll1",      CLK_PLL1, CLK_TYPE_GEN3_PLL1,       CLK_MAIN),
+	DEF_BASE(".pll3",      CLK_PLL3, CLK_TYPE_GEN3_PLL3,       CLK_MAIN),
+
+	DEF_FIXED(".pll0",     CLK_PLL0,           CLK_MAIN,	   4, 250),
+	DEF_FIXED(".pll0d2",   CLK_PLL0D2,         CLK_PLL0,       2, 1),
+	DEF_FIXED(".pll0d3",   CLK_PLL0D3,         CLK_PLL0,       3, 1),
+	DEF_FIXED(".pll0d5",   CLK_PLL0D5,         CLK_PLL0,       5, 1),
+	DEF_FIXED(".pll1d2",   CLK_PLL1D2,         CLK_PLL1,       2, 1),
+	DEF_FIXED(".pe",       CLK_PE,             CLK_PLL0D3,     4, 1),
+	DEF_FIXED(".s0",       CLK_S0,             CLK_PLL1,       2, 1),
+	DEF_FIXED(".s1",       CLK_S1,             CLK_PLL1,       3, 1),
+	DEF_FIXED(".s2",       CLK_S2,             CLK_PLL1,       4, 1),
+	DEF_FIXED(".s3",       CLK_S3,             CLK_PLL1,       6, 1),
+	DEF_FIXED(".sdsrc",    CLK_SDSRC,          CLK_PLL1,       2, 1),
+
+	/* Core Clock Outputs */
+	DEF_FIXED("z2",        R8A77995_CLK_Z2,    CLK_PLL0D3,     1, 1),
+	DEF_FIXED("ztr",       R8A77995_CLK_ZTR,   CLK_PLL1,       6, 1),
+	DEF_FIXED("zt",        R8A77995_CLK_ZT,    CLK_PLL1,       4, 1),
+	DEF_FIXED("zx",        R8A77995_CLK_ZX,    CLK_PLL1,       3, 1),
+	DEF_FIXED("s0d1",      R8A77995_CLK_S0D1,  CLK_S0,         1, 1),
+	DEF_FIXED("s1d1",      R8A77995_CLK_S1D1,  CLK_S1,         1, 1),
+	DEF_FIXED("s1d2",      R8A77995_CLK_S1D2,  CLK_S1,         2, 1),
+	DEF_FIXED("s1d4",      R8A77995_CLK_S1D4,  CLK_S1,         4, 1),
+	DEF_FIXED("s2d1",      R8A77995_CLK_S2D1,  CLK_S2,         1, 1),
+	DEF_FIXED("s2d2",      R8A77995_CLK_S2D2,  CLK_S2,         2, 1),
+	DEF_FIXED("s2d4",      R8A77995_CLK_S2D4,  CLK_S2,         4, 1),
+	DEF_FIXED("s3d1",      R8A77995_CLK_S3D1,  CLK_S3,         1, 1),
+	DEF_FIXED("s3d2",      R8A77995_CLK_S3D2,  CLK_S3,         2, 1),
+	DEF_FIXED("s3d4",      R8A77995_CLK_S3D4,  CLK_S3,         4, 1),
+
+	DEF_FIXED("cl",        R8A77995_CLK_CL,    CLK_PLL1,      48, 1),
+	DEF_FIXED("cp",        R8A77995_CLK_CP,    CLK_EXTAL,      2, 1),
+	DEF_FIXED("osc",       R8A77995_CLK_OSC,   CLK_EXTAL,    384, 1),
+	DEF_FIXED("r",         R8A77995_CLK_R,     CLK_EXTAL,   1536, 1),
+
+	DEF_GEN3_PE("s1d4c",   R8A77995_CLK_S1D4C, CLK_S1, 4, CLK_PE, 2),
+	DEF_GEN3_PE("s3d1c",   R8A77995_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
+	DEF_GEN3_PE("s3d2c",   R8A77995_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
+	DEF_GEN3_PE("s3d4c",   R8A77995_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
+
+	DEF_GEN3_SD("sd0",     R8A77995_CLK_SD0,   CLK_SDSRC,     0x268),
+
+	DEF_DIV6P1("canfd",    R8A77995_CLK_CANFD, CLK_PLL0D3,    0x244),
+	DEF_DIV6P1("mso",      R8A77995_CLK_MSO,   CLK_PLL1D2,    0x014),
+};
+
+static const struct mssr_mod_clk r8a77995_mod_clks[] __initconst = {
+	DEF_MOD("scif5",		 202,	R8A77995_CLK_S3D4C),
+	DEF_MOD("scif4",		 203,	R8A77995_CLK_S3D4C),
+	DEF_MOD("scif3",		 204,	R8A77995_CLK_S3D4C),
+	DEF_MOD("scif1",		 206,	R8A77995_CLK_S3D4C),
+	DEF_MOD("scif0",		 207,	R8A77995_CLK_S3D4C),
+	DEF_MOD("msiof3",		 208,	R8A77995_CLK_MSO),
+	DEF_MOD("msiof2",		 209,	R8A77995_CLK_MSO),
+	DEF_MOD("msiof1",		 210,	R8A77995_CLK_MSO),
+	DEF_MOD("msiof0",		 211,	R8A77995_CLK_MSO),
+	DEF_MOD("sys-dmac2",		 217,	R8A77995_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A77995_CLK_S3D1),
+	DEF_MOD("sys-dmac0",		 219,	R8A77995_CLK_S3D1),
+	DEF_MOD("cmt3",			 300,	R8A77995_CLK_R),
+	DEF_MOD("cmt2",			 301,	R8A77995_CLK_R),
+	DEF_MOD("cmt1",			 302,	R8A77995_CLK_R),
+	DEF_MOD("cmt0",			 303,	R8A77995_CLK_R),
+	DEF_MOD("scif2",		 310,	R8A77995_CLK_S3D4C),
+	DEF_MOD("emmc0",		 312,	R8A77995_CLK_SD0),
+	DEF_MOD("usb-dmac0",		 330,	R8A77995_CLK_S3D1),
+	DEF_MOD("usb-dmac1",		 331,	R8A77995_CLK_S3D1),
+	DEF_MOD("rwdt",			 402,	R8A77995_CLK_R),
+	DEF_MOD("intc-ex",		 407,	R8A77995_CLK_CP),
+	DEF_MOD("intc-ap",		 408,	R8A77995_CLK_S3D1),
+	DEF_MOD("audmac0",		 502,	R8A77995_CLK_S3D1),
+	DEF_MOD("hscif3",		 517,	R8A77995_CLK_S3D1C),
+	DEF_MOD("hscif0",		 520,	R8A77995_CLK_S3D1C),
+	DEF_MOD("thermal",		 522,	R8A77995_CLK_CP),
+	DEF_MOD("pwm",			 523,	R8A77995_CLK_S3D4C),
+	DEF_MOD("fcpvd1",		 602,	R8A77995_CLK_S1D2),
+	DEF_MOD("fcpvd0",		 603,	R8A77995_CLK_S1D2),
+	DEF_MOD("fcpvbs",		 607,	R8A77995_CLK_S0D1),
+	DEF_MOD("vspd1",		 622,	R8A77995_CLK_S1D2),
+	DEF_MOD("vspd0",		 623,	R8A77995_CLK_S1D2),
+	DEF_MOD("vspbs",		 627,	R8A77995_CLK_S0D1),
+	DEF_MOD("ehci0",		 703,	R8A77995_CLK_S3D2),
+	DEF_MOD("hsusb",		 704,	R8A77995_CLK_S3D2),
+	DEF_MOD("du1",			 723,	R8A77995_CLK_S2D1),
+	DEF_MOD("du0",			 724,	R8A77995_CLK_S2D1),
+	DEF_MOD("lvds",			 727,	R8A77995_CLK_S2D1),
+	DEF_MOD("vin7",			 804,	R8A77995_CLK_S1D2),
+	DEF_MOD("vin6",			 805,	R8A77995_CLK_S1D2),
+	DEF_MOD("vin5",			 806,	R8A77995_CLK_S1D2),
+	DEF_MOD("vin4",			 807,	R8A77995_CLK_S1D2),
+	DEF_MOD("etheravb",		 812,	R8A77995_CLK_S3D2),
+	DEF_MOD("imr0",			 823,	R8A77995_CLK_S1D2),
+	DEF_MOD("gpio6",		 906,	R8A77995_CLK_S3D4),
+	DEF_MOD("gpio5",		 907,	R8A77995_CLK_S3D4),
+	DEF_MOD("gpio4",		 908,	R8A77995_CLK_S3D4),
+	DEF_MOD("gpio3",		 909,	R8A77995_CLK_S3D4),
+	DEF_MOD("gpio2",		 910,	R8A77995_CLK_S3D4),
+	DEF_MOD("gpio1",		 911,	R8A77995_CLK_S3D4),
+	DEF_MOD("gpio0",		 912,	R8A77995_CLK_S3D4),
+	DEF_MOD("can-fd",		 914,	R8A77995_CLK_S3D2),
+	DEF_MOD("can-if1",		 915,	R8A77995_CLK_S3D4),
+	DEF_MOD("can-if0",		 916,	R8A77995_CLK_S3D4),
+	DEF_MOD("i2c3",			 928,	R8A77995_CLK_S3D2),
+	DEF_MOD("i2c2",			 929,	R8A77995_CLK_S3D2),
+	DEF_MOD("i2c1",			 930,	R8A77995_CLK_S3D2),
+	DEF_MOD("i2c0",			 931,	R8A77995_CLK_S3D2),
+	DEF_MOD("ssi-all",		1005,	R8A77995_CLK_S3D4),
+	DEF_MOD("ssi4",			1011,	MOD_CLK_ID(1005)),
+	DEF_MOD("ssi3",			1012,	MOD_CLK_ID(1005)),
+	DEF_MOD("scu-all",		1017,	R8A77995_CLK_S3D4),
+	DEF_MOD("scu-dvc1",		1018,	MOD_CLK_ID(1017)),
+	DEF_MOD("scu-dvc0",		1019,	MOD_CLK_ID(1017)),
+	DEF_MOD("scu-ctu1-mix1",	1020,	MOD_CLK_ID(1017)),
+	DEF_MOD("scu-ctu0-mix0",	1021,	MOD_CLK_ID(1017)),
+	DEF_MOD("scu-src6",		1025,	MOD_CLK_ID(1017)),
+	DEF_MOD("scu-src5",		1026,	MOD_CLK_ID(1017)),
+};
+
+static const unsigned int r8a77995_crit_mod_clks[] __initconst = {
+	MOD_CLK_ID(408),	/* INTC-AP (GIC) */
+};
+
+
+/*
+ * CPG Clock Data
+ */
+
+/*
+ * MD19		EXTAL (MHz)	PLL0		PLL1		PLL3
+ *--------------------------------------------------------------------
+ * 0		48 x 1		x250/4		x100/3		x100/3
+ * 1		48 x 1		x250/4		x100/3		x116/6
+ */
+#define CPG_PLL_CONFIG_INDEX(md)	(((md) & BIT(19)) >> 19)
+
+static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] __initconst = {
+	/* EXTAL div	PLL1 mult/div	PLL3 mult/div */
+	{ 1,		100,	3,	100,	3,	},
+	{ 1,		100,	3,	116,	6,	},
+};
+
+static int __init r8a77995_cpg_mssr_init(struct device *dev)
+{
+	const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
+	u32 cpg_mode;
+	int error;
+
+	error = rcar_rst_read_mode_pins(&cpg_mode);
+	if (error)
+		return error;
+
+	cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
+
+	return rcar_gen3_cpg_init(cpg_pll_config, 0, cpg_mode);
+}
+
+const struct cpg_mssr_info r8a77995_cpg_mssr_info __initconst = {
+	/* Core Clocks */
+	.core_clks = r8a77995_core_clks,
+	.num_core_clks = ARRAY_SIZE(r8a77995_core_clks),
+	.last_dt_core_clk = LAST_DT_CORE_CLK,
+	.num_total_core_clks = MOD_CLK_BASE,
+
+	/* Module Clocks */
+	.mod_clks = r8a77995_mod_clks,
+	.num_mod_clks = ARRAY_SIZE(r8a77995_mod_clks),
+	.num_hw_mod_clks = 12 * 32,
+
+	/* Critical Module Clocks */
+	.crit_mod_clks = r8a77995_crit_mod_clks,
+	.num_crit_mod_clks = ARRAY_SIZE(r8a77995_crit_mod_clks),
+
+	/* Callbacks */
+	.init = r8a77995_cpg_mssr_init,
+	.cpg_clk_register = rcar_gen3_cpg_clk_register,
+};
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index 1f607c806f9b9ec3..e580a5e6346c2533 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -680,6 +680,12 @@ static const struct of_device_id cpg_mssr_match[] = {
 		.data = &r8a7796_cpg_mssr_info,
 	},
 #endif
+#ifdef CONFIG_CLK_R8A77995
+	{
+		.compatible = "renesas,r8a77995-cpg-mssr",
+		.data = &r8a77995_cpg_mssr_info,
+	},
+#endif
 	{ /* sentinel */ }
 };
 
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h
index 43d7c7f6832df0b2..94b9071d1061ab16 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.h
+++ b/drivers/clk/renesas/renesas-cpg-mssr.h
@@ -138,6 +138,7 @@ extern const struct cpg_mssr_info r8a7792_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a7794_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a7795_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a7796_cpg_mssr_info;
+extern const struct cpg_mssr_info r8a77995_cpg_mssr_info;
 
 
     /*
-- 
2.7.4

Re: [PATCH 4/4] clk: renesas: cpg-mssr: Add R8A77995 support

[Stephen Boyd]

On 07/20, Geert Uytterhoeven wrote:
> Add R-Car D3 (R8A77995) Clock Pulse Generator / Module Standby and
> Software Reset support, using the CPG/MSSR driver core and the common
> R-Car Gen3 CPG code.
> 
> Based on the R-Car Series, 3rd Generation Hardware User's Manual, Rev.
> 0.55, Jun. 30, 2017.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: devicetree@vger.kernel.org
> ---

Acked-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH 4/4] clk: renesas: cpg-mssr: Add R8A77995 support

[Rob Herring]

On Thu, Jul 20, 2017 at 02:40:09PM +0200, Geert Uytterhoeven wrote:
> Add R-Car D3 (R8A77995) Clock Pulse Generator / Module Standby and
> Software Reset support, using the CPG/MSSR driver core and the common
> R-Car Gen3 CPG code.
> 
> Based on the R-Car Series, 3rd Generation Hardware User's Manual, Rev.
> 0.55, Jun. 30, 2017.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: devicetree@vger.kernel.org
> ---
> Notes:
>   - I couldn't verify the parent clocks of all module clocks.
>     For e.g. SYS-DMAC and some multimedia devices, I looked at how
>     related clocks were changed among R-Car H3, M3-W, and D3.
>   - For now, R clock handling is hardwired to internal RCLK.
> ---
>  .../devicetree/bindings/clock/renesas,cpg-mssr.txt |   3 +-

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/clk/renesas/Kconfig                        |   5 +
>  drivers/clk/renesas/Makefile                       |   1 +
>  drivers/clk/renesas/r8a77995-cpg-mssr.c            | 236 +++++++++++++++++++++
>  drivers/clk/renesas/renesas-cpg-mssr.c             |   6 +
>  drivers/clk/renesas/renesas-cpg-mssr.h             |   1 +
>  6 files changed, 251 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/clk/renesas/r8a77995-cpg-mssr.c

Re: [PATCH 0/4] clk: renesas: Add R-Car D3 support

[Geert Uytterhoeven]

On Thu, Jul 20, 2017 at 2:40 PM, Geert Uytterhoeven
<geert+renesas@glider.be> wrote:
> This patch series adds support for clocks on the R-Car D3 SoC.
>
> As usual, this is meant to be queued up in clk-renesas-for-v4.14.

Done.

> Geert Uytterhoeven (4):
>   clk: renesas: Add r8a77995 CPG Core Clock Definitions
>   clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3
>   clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks
>   clk: renesas: cpg-mssr: Add R8A77995 support
>
>  .../devicetree/bindings/clock/renesas,cpg-mssr.txt |   3 +-
>  drivers/clk/renesas/Kconfig                        |   5 +
>  drivers/clk/renesas/Makefile                       |   1 +
>  drivers/clk/renesas/r8a7795-cpg-mssr.c             |  34 +--
>  drivers/clk/renesas/r8a7796-cpg-mssr.c             |  34 +--
>  drivers/clk/renesas/r8a77995-cpg-mssr.c            | 236 +++++++++++++++++++++
>  drivers/clk/renesas/rcar-gen3-cpg.c                |  22 +-
>  drivers/clk/renesas/rcar-gen3-cpg.h                |  15 +-
>  drivers/clk/renesas/renesas-cpg-mssr.c             |   6 +
>  drivers/clk/renesas/renesas-cpg-mssr.h             |   1 +
>  include/dt-bindings/clock/r8a77995-cpg-mssr.h      |  57 +++++
>  11 files changed, 375 insertions(+), 39 deletions(-)
>  create mode 100644 drivers/clk/renesas/r8a77995-cpg-mssr.c
>  create mode 100644 include/dt-bindings/clock/r8a77995-cpg-mssr.h

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds