linux-kernel - [PATCH v2 07/20] clk: renesas: r9a09g047: Add support for DSI clocks and resets

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Message-ID: <efce106d1692c1ea99b1fd675d4e9e4f7ef3144b.1769789834.git.tommaso.merciai.xr@bp.renesas.com>
Date: Fri, 30 Jan 2026 18:25:04 +0100
From: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
To: tomm.merciai@...il.com,
	geert@...ux-m68k.org,
	laurent.pinchart@...asonboard.com
Cc: linux-renesas-soc@...r.kernel.org,
	biju.das.jz@...renesas.com,
	Tommaso Merciai <tommaso.merciai.xr@...renesas.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org
Subject: [PATCH v2 07/20] clk: renesas: r9a09g047: Add support for DSI clocks and resets

Add definitions for DSI clocks and resets on the R9A09G047 cpg driver
to enable proper initialization and control of the DSI hardware.

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
---
v1->v2:
 - Collected GUytterhoeven tag.
 - Fixed "dsi_0_vclk2" position to match order.

 drivers/clk/renesas/r9a09g047-cpg.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
index 1e10e6ff52f8..596349fe6132 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -486,6 +486,16 @@ static const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = {
 						BUS_MSTOP(9, BIT(4))),
 	DEF_MOD("cru_0_pclk",			CLK_PLLDTY_DIV16, 13, 4, 6, 20,
 						BUS_MSTOP(9, BIT(4))),
+	DEF_MOD("dsi_0_pclk",			CLK_PLLDTY_DIV16, 14, 8, 7, 8,
+						BUS_MSTOP(9, BIT(15) | BIT(14))),
+	DEF_MOD("dsi_0_aclk",			CLK_PLLDTY_ACPU_DIV2, 14, 9, 7, 9,
+						BUS_MSTOP(9, BIT(15) | BIT(14))),
+	DEF_MOD("dsi_0_vclk1",			CLK_SMUX2_DSI0_CLK, 14, 10, 7, 10,
+						BUS_MSTOP(9, BIT(15) | BIT(14))),
+	DEF_MOD("dsi_0_lpclk",			CLK_PLLETH_LPCLK, 14, 11, 7, 11,
+						BUS_MSTOP(9, BIT(15) | BIT(14))),
+	DEF_MOD("dsi_0_pllref_clk",		CLK_QEXTAL, 14, 12, 7, 12,
+						BUS_MSTOP(9, BIT(15) | BIT(14))),
 	DEF_MOD("ge3d_clk",			CLK_PLLVDO_GPU, 15, 0, 7, 16,
 						BUS_MSTOP(3, BIT(4))),
 	DEF_MOD("ge3d_axi_clk",			CLK_PLLDTY_ACPU_DIV2, 15, 1, 7, 17,
@@ -494,6 +504,8 @@ static const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = {
 						BUS_MSTOP(3, BIT(4))),
 	DEF_MOD("tsu_1_pclk",			CLK_QEXTAL, 16, 10, 8, 10,
 						BUS_MSTOP(2, BIT(15))),
+	DEF_MOD("dsi_0_vclk2",			CLK_SMUX2_DSI1_CLK, 25, 0, 10, 21,
+						BUS_MSTOP(9, BIT(15) | BIT(14))),
 };
 
 static const struct rzv2h_reset r9a09g047_resets[] __initconst = {
@@ -562,6 +574,8 @@ static const struct rzv2h_reset r9a09g047_resets[] __initconst = {
 	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(13, 7, 6, 8),		/* DSI_0_PRESETN */
+	DEF_RST(13, 8, 6, 9),		/* DSI_0_ARESETN */
 	DEF_RST(13, 13, 6, 14),		/* GE3D_RESETN */
 	DEF_RST(13, 14, 6, 15),		/* GE3D_AXI_RESETN */
 	DEF_RST(13, 15, 6, 16),		/* GE3D_ACE_RESETN */
-- 
2.43.0