linux-kernel - [PATCH 5/5] i2c: riic: Add support for R9A09G057 SoC

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Message-Id: <20240308172726.225357-6-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Fri,  8 Mar 2024 17:27:26 +0000
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Chris Brandt <chris.brandt@...esas.com>,
	Andi Shyti <andi.shyti@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH 5/5] i2c: riic: Add support for R9A09G057 SoC

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

Extend the RIIC driver to support the RZ/V2H ("R9A09G057") SoC. It
accomplishes this by appending the compatible string list and passing
the RZ/V2H-specific OF data.

Additionally, this patch introduces an riic_family enum for SoC variants,
replacing macro previously used.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@...esas.com>
---
 drivers/i2c/busses/i2c-riic.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c
index 3398d639b754..fc814a4f06a6 100644
--- a/drivers/i2c/busses/i2c-riic.c
+++ b/drivers/i2c/busses/i2c-riic.c
@@ -75,7 +75,10 @@
 
 #define RIIC_INIT_MSG	-1
 
-#define RIIC_RZ_A_TYPE	0
+enum riic_family {
+	RIIC_RZ_A_TYPE = 0,
+	RIIC_RZ_V2H_TYPE,
+};
 
 struct riic_of_data {
 	u8 family;
@@ -526,8 +529,26 @@ static const struct riic_of_data riic_rz_a_info = {
 	},
 };
 
+static const struct riic_of_data riic_rz_v2h_info = {
+	.family = RIIC_RZ_V2H_TYPE,
+	.regs = {
+		[RIIC_ICCR1] = 0x00,
+		[RIIC_ICCR2] = 0x01,
+		[RIIC_ICMR1] = 0x02,
+		[RIIC_ICMR3] = 0x04,
+		[RIIC_ICSER] = 0x06,
+		[RIIC_ICIER] = 0x07,
+		[RIIC_ICSR2] = 0x09,
+		[RIIC_ICBRL] = 0x10,
+		[RIIC_ICBRH] = 0x11,
+		[RIIC_ICDRT] = 0x12,
+		[RIIC_ICDRR] = 0x13,
+	},
+};
+
 static const struct of_device_id riic_i2c_dt_ids[] = {
 	{ .compatible = "renesas,riic-rz", .data = &riic_rz_a_info },
+	{ .compatible = "renesas,riic-r9a09g057", .data = &riic_rz_v2h_info },
 	{ /* Sentinel */ },
 };
 
-- 
2.34.1