linux-kernel - [PATCH 3/4] clk: renesas: r9a09g057: Add entries for CANFD

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Message-ID: <20251224165049.3384870-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Wed, 24 Dec 2025 16:50:48 +0000
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...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 3/4] clk: renesas: r9a09g057: Add entries for CANFD

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

Add clock and reset entries for the CANFD IP.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 drivers/clk/renesas/r9a09g057-cpg.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g057-cpg.c b/drivers/clk/renesas/r9a09g057-cpg.c
index 991f9a2ec12e..6943cad318b5 100644
--- a/drivers/clk/renesas/r9a09g057-cpg.c
+++ b/drivers/clk/renesas/r9a09g057-cpg.c
@@ -46,6 +46,7 @@ enum clk_ids {
 	CLK_PLLCLN_DIV2,
 	CLK_PLLCLN_DIV8,
 	CLK_PLLCLN_DIV16,
+	CLK_PLLCLN_DIV20,
 	CLK_PLLCLN_DIV64,
 	CLK_PLLCLN_DIV256,
 	CLK_PLLCLN_DIV1024,
@@ -185,6 +186,7 @@ static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {
 	DEF_FIXED(".pllcln_div2", CLK_PLLCLN_DIV2, CLK_PLLCLN, 1, 2),
 	DEF_FIXED(".pllcln_div8", CLK_PLLCLN_DIV8, CLK_PLLCLN, 1, 8),
 	DEF_FIXED(".pllcln_div16", CLK_PLLCLN_DIV16, CLK_PLLCLN, 1, 16),
+	DEF_FIXED(".pllcln_div20", CLK_PLLCLN_DIV20, CLK_PLLCLN, 1, 20),
 	DEF_FIXED(".pllcln_div64", CLK_PLLCLN_DIV64, CLK_PLLCLN, 1, 64),
 	DEF_FIXED(".pllcln_div256", CLK_PLLCLN_DIV256, CLK_PLLCLN, 1, 256),
 	DEF_FIXED(".pllcln_div1024", CLK_PLLCLN_DIV1024, CLK_PLLCLN, 1, 1024),
@@ -440,6 +442,12 @@ static const struct rzv2h_mod_clk r9a09g057_mod_clks[] __initconst = {
 						BUS_MSTOP(1, BIT(7))),
 	DEF_MOD("riic_7_ckm",			CLK_PLLCLN_DIV16, 9, 11, 4, 27,
 						BUS_MSTOP(1, BIT(8))),
+	DEF_MOD("canfd_0_pclk",			CLK_PLLCLN_DIV16, 9, 12, 4, 28,
+						BUS_MSTOP(10, BIT(14))),
+	DEF_MOD("canfd_0_clk_ram",		CLK_PLLCLN_DIV8, 9, 13, 4, 29,
+						BUS_MSTOP(10, BIT(14))),
+	DEF_MOD("canfd_0_clkc",			CLK_PLLCLN_DIV20, 9, 14, 4, 30,
+						BUS_MSTOP(10, BIT(14))),
 	DEF_MOD("spi_hclk",			CLK_PLLCM33_GEAR, 9, 15, 4, 31,
 						BUS_MSTOP(4, BIT(5))),
 	DEF_MOD("spi_aclk",			CLK_PLLCM33_GEAR, 10, 0, 5, 0,
@@ -634,6 +642,8 @@ static const struct rzv2h_reset r9a09g057_resets[] __initconst = {
 	DEF_RST(9, 14, 4, 15),		/* RIIC_6_MRST */
 	DEF_RST(9, 15, 4, 16),		/* RIIC_7_MRST */
 	DEF_RST(10, 0, 4, 17),		/* RIIC_8_MRST */
+	DEF_RST(10, 1, 4, 18),		/* CANFD_0_RSTP_N */
+	DEF_RST(10, 2, 4, 19),		/* CANFD_0_RSTC_N */
 	DEF_RST(10, 3, 4, 20),		/* SPI_HRESETN */
 	DEF_RST(10, 4, 4, 21),		/* SPI_ARESETN */
 	DEF_RST(10, 7, 4, 24),		/* SDHI_0_IXRST */
-- 
2.52.0