linux-kernel - [PATCH 2/3] clk: renesas: r9a09g056: Add support for PLLVDO, CRU clocks, and resets

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Message-ID: <20251023210724.666476-3-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Thu, 23 Oct 2025 22:07:23 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH 2/3] clk: renesas: r9a09g056: Add support for PLLVDO, CRU clocks, and resets

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Add support for the PLLVDO clock and its related CRU clocks and reset
entries in the R9A09G056 CPG driver. Introduce `CLK_PLLVDO` and associated
clocks like `CLK_PLLVDO_CRU0` and `CLK_PLLVDO_CRU1`, along with their
corresponding dividers.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 drivers/clk/renesas/r9a09g056-cpg.c | 31 +++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g056-cpg.c b/drivers/clk/renesas/r9a09g056-cpg.c
index 70b73d410135..9c536f7706ff 100644
--- a/drivers/clk/renesas/r9a09g056-cpg.c
+++ b/drivers/clk/renesas/r9a09g056-cpg.c
@@ -29,6 +29,7 @@ enum clk_ids {
 	CLK_PLLCLN,
 	CLK_PLLDTY,
 	CLK_PLLCA55,
+	CLK_PLLVDO,
 	CLK_PLLETH,
 	CLK_PLLDSI,
 	CLK_PLLGPU,
@@ -50,6 +51,8 @@ enum clk_ids {
 	CLK_PLLDTY_ACPU_DIV4,
 	CLK_PLLDTY_DIV8,
 	CLK_PLLDTY_DIV16,
+	CLK_PLLVDO_CRU0,
+	CLK_PLLVDO_CRU1,
 	CLK_PLLETH_DIV_250_FIX,
 	CLK_PLLETH_DIV_125_FIX,
 	CLK_CSDIV_PLLETH_GBE0,
@@ -75,6 +78,12 @@ static const struct clk_div_table dtable_1_8[] = {
 	{0, 0},
 };
 
+static const struct clk_div_table dtable_2_4[] = {
+	{0, 2},
+	{1, 4},
+	{0, 0},
+};
+
 static const struct clk_div_table dtable_2_16[] = {
 	{0, 2},
 	{1, 4},
@@ -149,6 +158,7 @@ static const struct cpg_core_clk r9a09g056_core_clks[] __initconst = {
 	DEF_FIXED(".pllcln", CLK_PLLCLN, CLK_QEXTAL, 200, 3),
 	DEF_FIXED(".plldty", CLK_PLLDTY, CLK_QEXTAL, 200, 3),
 	DEF_PLL(".pllca55", CLK_PLLCA55, CLK_QEXTAL, PLLCA55),
+	DEF_FIXED(".pllvdo", CLK_PLLVDO, CLK_QEXTAL, 105, 2),
 	DEF_FIXED(".plleth", CLK_PLLETH, CLK_QEXTAL, 125, 3),
 	DEF_PLLDSI(".plldsi", CLK_PLLDSI, CLK_QEXTAL, PLLDSI),
 	DEF_PLL(".pllgpu", CLK_PLLGPU, CLK_QEXTAL, PLLGPU),
@@ -174,6 +184,9 @@ static const struct cpg_core_clk r9a09g056_core_clks[] __initconst = {
 	DEF_FIXED(".plldty_div8", CLK_PLLDTY_DIV8, CLK_PLLDTY, 1, 8),
 	DEF_FIXED(".plldty_div16", CLK_PLLDTY_DIV16, CLK_PLLDTY, 1, 16),
 
+	DEF_DDIV(".pllvdo_cru0", CLK_PLLVDO_CRU0, CLK_PLLVDO, CDDIV3_DIVCTL3, dtable_2_4),
+	DEF_DDIV(".pllvdo_cru1", CLK_PLLVDO_CRU1, CLK_PLLVDO, CDDIV4_DIVCTL0, dtable_2_4),
+
 	DEF_FIXED(".plleth_250_fix", CLK_PLLETH_DIV_250_FIX, CLK_PLLETH, 1, 4),
 	DEF_FIXED(".plleth_125_fix", CLK_PLLETH_DIV_125_FIX, CLK_PLLETH_DIV_250_FIX, 1, 2),
 	DEF_CSDIV(".plleth_gbe0", CLK_CSDIV_PLLETH_GBE0,
@@ -334,6 +347,18 @@ static const struct rzv2h_mod_clk r9a09g056_mod_clks[] __initconst = {
 						BUS_MSTOP(8, BIT(6))),
 	DEF_MOD("gbeth_1_aclk_i",		CLK_PLLDTY_DIV8, 12, 3, 6, 3,
 						BUS_MSTOP(8, BIT(6))),
+	DEF_MOD("cru_0_aclk",			CLK_PLLDTY_ACPU_DIV2, 13, 2, 6, 18,
+						BUS_MSTOP(9, BIT(4))),
+	DEF_MOD_NO_PM("cru_0_vclk",		CLK_PLLVDO_CRU0, 13, 3, 6, 19,
+						BUS_MSTOP(9, BIT(4))),
+	DEF_MOD("cru_0_pclk",			CLK_PLLDTY_DIV16, 13, 4, 6, 20,
+						BUS_MSTOP(9, BIT(4))),
+	DEF_MOD("cru_1_aclk",			CLK_PLLDTY_ACPU_DIV2, 13, 5, 6, 21,
+						BUS_MSTOP(9, BIT(5))),
+	DEF_MOD_NO_PM("cru_1_vclk",		CLK_PLLVDO_CRU1, 13, 6, 6, 22,
+						BUS_MSTOP(9, BIT(5))),
+	DEF_MOD("cru_1_pclk",			CLK_PLLDTY_DIV16, 13, 7, 6, 23,
+						BUS_MSTOP(9, BIT(5))),
 	DEF_MOD("dsi_0_pclk",			CLK_PLLDTY_DIV16, 14, 8, 7, 8,
 						BUS_MSTOP(9, BIT(14) | BIT(15))),
 	DEF_MOD("dsi_0_aclk",			CLK_PLLDTY_ACPU_DIV2, 14, 9, 7, 9,
@@ -396,6 +421,12 @@ static const struct rzv2h_reset r9a09g056_resets[] __initconst = {
 	DEF_RST(10, 15, 5, 0),		/* USB2_0_PRESETN */
 	DEF_RST(11, 0, 5, 1),		/* GBETH_0_ARESETN_I */
 	DEF_RST(11, 1, 5, 2),		/* GBETH_1_ARESETN_I */
+	DEF_RST(12, 5, 5, 22),		/* CRU_0_PRESETN */
+	DEF_RST(12, 6, 5, 23),		/* CRU_0_ARESETN */
+	DEF_RST(12, 7, 5, 24),		/* CRU_0_S_RESETN */
+	DEF_RST(12, 8, 5, 25),		/* CRU_1_PRESETN */
+	DEF_RST(12, 9, 5, 26),		/* CRU_1_ARESETN */
+	DEF_RST(12, 10, 5, 27),		/* CRU_1_S_RESETN */
 	DEF_RST(13, 7, 6, 8),		/* DSI_0_PRESETN */
 	DEF_RST(13, 8, 6, 9),		/* DSI_0_ARESETN */
 	DEF_RST(13, 12, 6, 13),		/* LCDC_0_RESET_N */
-- 
2.43.0