[PATCH 00/22] Add support for DU and DSI on the Renesas RZ/G3E SoC

[PATCH 00/22] Add support for DU and DSI on the Renesas RZ/G3E SoC

[Tommaso Merciai]

Hi All,

This patch series adds support for the 2 Display Units (DUs) and MIPI DSI
interface found on the Renesas RZ/G3E SoC.

RZ/G3E SoC has 2 LCD controller (LCDC0 and LCDC1), both are composed
of Frame Compression Processor (FCPVD), Video Signal Processor (VSPD),
and Display Unit (DU).

LCDC0 is connected to LVDS (single or dual channel) and DSI.
LCDC1 is connected to LVDS (single ch), DSI, and GPIO (Parallel I/F).

This apply on top of [1].

Thanks & Regards,
Tommaso

[1] https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=1012044

Tommaso Merciai (22):
  clk: renesas: rzv2h: Add PLLDSI clk mux support
  clk: renesas: r9a09g047: Add CLK_PLLETH_LPCLK support
  clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1} clocks
  clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1}_DIV7 clocks
  clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1}_CSDIV clocks
  clk: renesas: r9a09g047: Add support for SMUX2_DSI{0,1}_CLK
  clk: renesas: r9a09g047: Add support for DSI clocks and resets
  clk: renesas: r9a09g047: Add support for LCDC{0,1} clocks and resets
  dt-bindings: display: bridge: renesas,dsi: Add support for RZ/G3E SoC
  dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC
  drm: renesas: rz-du: mipi_dsi: Add out_port to OF data
  drm: renesas: rz-du: mipi_dsi: Add RZ_MIPI_DSI_FEATURE_GPO0R feature
  drm: renesas: rz-du: mipi_dsi: Add support for RZ/G3E
  drm: renesas: rz-du: Add RZ/G3E support
  media: dt-bindings: media: renesas,vsp1: Document RZ/G3E
  media: dt-bindings: media: renesas,fcp: Document RZ/G3E SoC
  arm64: dts: renesas: r9a09g047: Add fcpvd0 node
  arm64: dts: renesas: r9a09g047: Add vspd0 node
  arm64: dts: renesas: r9a09g047: Add fcpvd1 node
  arm64: dts: renesas: r9a09g047: Add vspd1 node
  arm64: dts: renesas: r9a09g047: Add DU{0,1} and DSI nodes
  arm64: dts: renesas: r9a09g047e57-smarc: Enable DU1 and DSI support

 .../bindings/display/bridge/renesas,dsi.yaml  | 120 ++++++++++--
 .../bindings/display/renesas,rzg2l-du.yaml    |  42 +++++
 .../bindings/media/renesas,fcp.yaml           |   2 +
 .../bindings/media/renesas,vsp1.yaml          |   1 +
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi    | 173 ++++++++++++++++++
 .../r9a09g047e57-smarc-du1-adv7535.dtsi       | 124 +++++++++++++
 .../boot/dts/renesas/r9a09g047e57-smarc.dts   |   1 +
 drivers/clk/renesas/r9a09g047-cpg.c           |  84 +++++++++
 drivers/clk/renesas/rzv2h-cpg.c               | 131 +++++++++++++
 drivers/clk/renesas/rzv2h-cpg.h               |  12 ++
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c |  51 ++++++
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c  |  42 +++++
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h  |  11 ++
 .../gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c    | 109 ++++++++++-
 .../drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h   |   3 +
 include/linux/clk/renesas.h                   |  20 ++
 16 files changed, 898 insertions(+), 28 deletions(-)
 create mode 100644 arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi

-- 
2.43.0

[PATCH 01/22] clk: renesas: rzv2h: Add PLLDSI clk mux support

[Tommaso Merciai]

Add PLLDSI clk mux support to select PLLDSI clock from different clock
sources.

Introduce the DEF_PLLDSI_SMUX() macro to define these muxes and register
them in the clock driver.

Extend the determine_rate callback to calculate and propagate PLL
parameters via rzv2h_get_pll_dtable_pars() when LVDS output is selected,
using a new helper function rzv2h_cpg_plldsi_smux_lvds_determine_rate().

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 drivers/clk/renesas/rzv2h-cpg.c | 131 ++++++++++++++++++++++++++++++++
 drivers/clk/renesas/rzv2h-cpg.h |   8 ++
 2 files changed, 139 insertions(+)

diff --git a/drivers/clk/renesas/rzv2h-cpg.c b/drivers/clk/renesas/rzv2h-cpg.c
index 3f6299b9fec0..dd782fa269d7 100644
--- a/drivers/clk/renesas/rzv2h-cpg.c
+++ b/drivers/clk/renesas/rzv2h-cpg.c
@@ -418,6 +418,20 @@ bool rzv2h_get_pll_divs_pars(const struct rzv2h_pll_limits *limits,
 }
 EXPORT_SYMBOL_NS_GPL(rzv2h_get_pll_divs_pars, "RZV2H_CPG");
 
+/**
+ * struct rzv2h_plldsi_mux_clk - PLL DSI MUX clock
+ *
+ * @priv: CPG private data
+ * @mux: mux clk
+ */
+struct rzv2h_plldsi_mux_clk {
+	struct rzv2h_cpg_priv *priv;
+	struct clk_mux mux;
+};
+
+#define to_plldsi_clk_mux(_mux) \
+	container_of(_mux, struct rzv2h_plldsi_mux_clk, mux)
+
 static unsigned long rzv2h_cpg_plldsi_div_recalc_rate(struct clk_hw *hw,
 						      unsigned long parent_rate)
 {
@@ -649,6 +663,120 @@ static int rzv2h_cpg_plldsi_set_rate(struct clk_hw *hw, unsigned long rate,
 	return rzv2h_cpg_pll_set_rate(pll_clk, &dsi_info->pll_dsi_parameters.pll, true);
 }
 
+static u8 rzv2h_cpg_plldsi_smux_get_parent(struct clk_hw *hw)
+{
+	return clk_mux_ops.get_parent(hw);
+}
+
+static int rzv2h_cpg_plldsi_smux_set_parent(struct clk_hw *hw, u8 index)
+{
+	return clk_mux_ops.set_parent(hw, index);
+}
+
+static int rzv2h_cpg_plldsi_smux_lvds_determine_rate(struct rzv2h_cpg_priv *priv,
+						     struct pll_clk *pll_clk,
+						     struct clk_rate_request *req)
+{
+	struct rzv2h_pll_div_pars *dsi_params;
+	struct rzv2h_pll_dsi_info *dsi_info;
+	u8 lvds_table[] = { 7 };
+	u64 rate_millihz;
+
+	dsi_info = &priv->pll_dsi_info[pll_clk->pll.instance];
+	dsi_params = &dsi_info->pll_dsi_parameters;
+
+	rate_millihz = mul_u32_u32(req->rate, MILLI);
+	if (!rzv2h_get_pll_divs_pars(dsi_info->pll_dsi_limits, dsi_params,
+				     lvds_table, 1, rate_millihz)) {
+		dev_err(priv->dev, "failed to determine rate for req->rate: %lu\n",
+			req->rate);
+		return -EINVAL;
+	}
+
+	req->rate = DIV_ROUND_CLOSEST_ULL(dsi_params->div.freq_millihz, MILLI);
+	req->best_parent_rate = req->rate;
+	dsi_info->req_pll_dsi_rate = req->best_parent_rate * dsi_params->div.divider_value;
+
+	return 0;
+}
+
+static int rzv2h_cpg_plldsi_smux_determine_rate(struct clk_hw *hw,
+						struct clk_rate_request *req)
+{
+	struct clk_mux *mux = to_clk_mux(hw);
+	struct rzv2h_plldsi_mux_clk *dsi_mux = to_plldsi_clk_mux(mux);
+	struct pll_clk *pll_clk = to_pll(clk_hw_get_parent(hw));
+	struct rzv2h_cpg_priv *priv = dsi_mux->priv;
+	int ret;
+
+	/*
+	 * For LVDS output (parent_idx == 0), calculate PLL parameters with
+	 * fixed divider value of 7. For DSI/RGB output (parent_idx == 1) skip
+	 * PLL calculation here as it's handled by determine_rate of the
+	 * divider (up one level).
+	 */
+	if (!clk_mux_ops.get_parent(hw))
+		ret = rzv2h_cpg_plldsi_smux_lvds_determine_rate(priv, pll_clk, req);
+	else
+		ret = clk_mux_determine_rate_flags(hw, req, mux->flags);
+
+	return ret;
+}
+
+static const struct clk_ops rzv2h_cpg_plldsi_smux_ops = {
+	.determine_rate = rzv2h_cpg_plldsi_smux_determine_rate,
+	.get_parent = rzv2h_cpg_plldsi_smux_get_parent,
+	.set_parent = rzv2h_cpg_plldsi_smux_set_parent,
+};
+
+static struct clk * __init
+rzv2h_cpg_plldsi_smux_clk_register(const struct cpg_core_clk *core,
+				   struct rzv2h_cpg_priv *priv)
+{
+	struct rzv2h_plldsi_mux_clk *clk_hw_data;
+	struct clk_init_data init;
+	struct clk_hw *clk_hw;
+	struct smuxed smux;
+	u8 width;
+	int ret;
+
+	smux = core->cfg.smux;
+	width = fls(smux.width) - ffs(smux.width) + 1;
+
+	if (width + smux.width > 16) {
+		dev_err(priv->dev, "mux value exceeds LOWORD field\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	clk_hw_data = devm_kzalloc(priv->dev, sizeof(*clk_hw_data), GFP_KERNEL);
+	if (!clk_hw_data)
+		return ERR_PTR(-ENOMEM);
+
+	clk_hw_data->priv = priv;
+
+	init.name = core->name;
+	init.ops = &rzv2h_cpg_plldsi_smux_ops;
+	init.flags = core->flag;
+	init.parent_names = core->parent_names;
+	init.num_parents = core->num_parents;
+
+	clk_hw_data->mux.reg = priv->base + smux.offset;
+
+	clk_hw_data->mux.shift = smux.shift;
+	clk_hw_data->mux.mask = smux.width;
+	clk_hw_data->mux.flags = core->mux_flags;
+	clk_hw_data->mux.lock = &priv->rmw_lock;
+
+	clk_hw = &clk_hw_data->mux.hw;
+	clk_hw->init = &init;
+
+	ret = devm_clk_hw_register(priv->dev, clk_hw);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return clk_hw->clk;
+}
+
 static int rzv2h_cpg_pll_clk_is_enabled(struct clk_hw *hw)
 {
 	struct pll_clk *pll_clk = to_pll(hw);
@@ -1085,6 +1213,9 @@ rzv2h_cpg_register_core_clk(const struct cpg_core_clk *core,
 	case CLK_TYPE_PLLDSI_DIV:
 		clk = rzv2h_cpg_plldsi_div_clk_register(core, priv);
 		break;
+	case CLK_TYPE_PLLDSI_SMUX:
+		clk = rzv2h_cpg_plldsi_smux_clk_register(core, priv);
+		break;
 	default:
 		goto fail;
 	}
diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index dc957bdaf5e9..5f6e775612e7 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -203,6 +203,7 @@ enum clk_types {
 	CLK_TYPE_SMUX,		/* Static Mux */
 	CLK_TYPE_PLLDSI,	/* PLLDSI */
 	CLK_TYPE_PLLDSI_DIV,	/* PLLDSI divider */
+	CLK_TYPE_PLLDSI_SMUX,	/* PLLDSI Static Mux */
 };
 
 #define DEF_TYPE(_name, _id, _type...) \
@@ -241,6 +242,13 @@ enum clk_types {
 		 .dtable = _dtable, \
 		 .parent = _parent, \
 		 .flag = CLK_SET_RATE_PARENT)
+#define DEF_PLLDSI_SMUX(_name, _id, _smux_packed, _parent_names) \
+	DEF_TYPE(_name, _id, CLK_TYPE_PLLDSI_SMUX, \
+		 .cfg.smux = _smux_packed, \
+		 .parent_names = _parent_names, \
+		 .num_parents = ARRAY_SIZE(_parent_names), \
+		 .flag = CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, \
+		 .mux_flags = CLK_MUX_HIWORD_MASK)
 
 /**
  * struct rzv2h_mod_clk - Module Clocks definitions
-- 
2.43.0

[PATCH 02/22] clk: renesas: r9a09g047: Add CLK_PLLETH_LPCLK support

[Tommaso Merciai]

Add CLK_PLLETH_LPCLK clock support.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 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 1e9896742a06..a73d12d4964a 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -64,6 +64,8 @@ enum clk_ids {
 	CLK_PLLDTY_DIV16,
 	CLK_PLLVDO_CRU0,
 	CLK_PLLVDO_GPU,
+	CLK_PLLETH_DIV4_LPCLK,
+	CLK_PLLETH_LPCLK,
 
 	/* Module Clocks */
 	MOD_CLK_BASE,
@@ -107,6 +109,14 @@ static const struct clk_div_table dtable_2_100[] = {
 	{0, 0},
 };
 
+static const struct clk_div_table dtable_16_128[] = {
+	{0, 16},
+	{1, 32},
+	{2, 64},
+	{3, 128},
+	{0, 0},
+};
+
 /* Mux clock tables */
 static const char * const smux2_gbe0_rxclk[] = { ".plleth_gbe0", "et0_rxclk" };
 static const char * const smux2_gbe0_txclk[] = { ".plleth_gbe0", "et0_txclk" };
@@ -171,6 +181,10 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_DDIV(".pllvdo_cru0", CLK_PLLVDO_CRU0, CLK_PLLVDO, CDDIV3_DIVCTL3, dtable_2_4),
 	DEF_DDIV(".pllvdo_gpu", CLK_PLLVDO_GPU, CLK_PLLVDO, CDDIV3_DIVCTL1, dtable_2_64),
 
+	DEF_FIXED(".plleth_div4_lpclk", CLK_PLLETH_DIV4_LPCLK, CLK_PLLETH, 1, 4),
+	DEF_CSDIV(".plleth_lpclk", CLK_PLLETH_LPCLK, CLK_PLLETH_DIV4_LPCLK,
+		  CSDIV0_DIVCTL2, dtable_16_128),
+
 	/* Core Clocks */
 	DEF_FIXED("sys_0_pclk", R9A09G047_SYS_0_PCLK, CLK_QEXTAL, 1, 1),
 	DEF_DDIV("ca55_0_coreclk0", R9A09G047_CA55_0_CORECLK0, CLK_PLLCA55,
-- 
2.43.0

[PATCH 03/22] clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1} clocks

[Tommaso Merciai]

Add support for the PLLDSI{0,1} clocks in the r9a09g047 CPG driver.

Introduce CLK_PLLDSI{0,1} also, introduce the
rzg3e_cpg_pll_dsi{0,1}_limits structures to describe the frequency
constraints specific to the RZ/G3E SoC.

On Renesas RZ/G3E:

 - PLLDSI0 maximum output frequency: 1218 MHz
 - PLLDSI1 maximum output frequency: 609 MHz

These limits are enforced through the newly added
RZG3E_CPG_PLL_DSI{0,1}_LIMITS().

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 drivers/clk/renesas/r9a09g047-cpg.c | 11 +++++++++++
 include/linux/clk/renesas.h         | 20 ++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
index a73d12d4964a..8d4c70533a79 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/clk-provider.h>
+#include <linux/clk/renesas.h>
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -30,6 +31,8 @@ enum clk_ids {
 	CLK_PLLCA55,
 	CLK_PLLVDO,
 	CLK_PLLETH,
+	CLK_PLLDSI0,
+	CLK_PLLDSI1,
 
 	/* Internal Core Clocks */
 	CLK_PLLCM33_DIV3,
@@ -117,6 +120,12 @@ static const struct clk_div_table dtable_16_128[] = {
 	{0, 0},
 };
 
+RZG3E_CPG_PLL_DSI0_LIMITS(rzg3e_cpg_pll_dsi0_limits);
+RZG3E_CPG_PLL_DSI1_LIMITS(rzg3e_cpg_pll_dsi1_limits);
+
+#define PLLDSI0		PLL_PACK_LIMITS(0xc0, 1, 0, &rzg3e_cpg_pll_dsi0_limits)
+#define PLLDSI1		PLL_PACK_LIMITS(0x160, 1, 1, &rzg3e_cpg_pll_dsi1_limits)
+
 /* Mux clock tables */
 static const char * const smux2_gbe0_rxclk[] = { ".plleth_gbe0", "et0_rxclk" };
 static const char * const smux2_gbe0_txclk[] = { ".plleth_gbe0", "et0_txclk" };
@@ -138,6 +147,8 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_PLL(".pllca55", CLK_PLLCA55, CLK_QEXTAL, PLLCA55),
 	DEF_FIXED(".plleth", CLK_PLLETH, CLK_QEXTAL, 125, 3),
 	DEF_FIXED(".pllvdo", CLK_PLLVDO, CLK_QEXTAL, 105, 2),
+	DEF_PLLDSI(".plldsi0", CLK_PLLDSI0, CLK_QEXTAL, PLLDSI0),
+	DEF_PLLDSI(".plldsi1", CLK_PLLDSI1, CLK_QEXTAL, PLLDSI1),
 
 	/* Internal Core Clocks */
 	DEF_FIXED(".pllcm33_div3", CLK_PLLCM33_DIV3, CLK_PLLCM33, 1, 3),
diff --git a/include/linux/clk/renesas.h b/include/linux/clk/renesas.h
index 69d8159deee3..ec52ce5a958f 100644
--- a/include/linux/clk/renesas.h
+++ b/include/linux/clk/renesas.h
@@ -153,6 +153,26 @@ struct rzv2h_pll_div_pars {
 		.k = { .min = -32768, .max = 32767 },			\
 	}								\
 
+#define RZG3E_CPG_PLL_DSI0_LIMITS(name)					\
+	static const struct rzv2h_pll_limits (name) = {			\
+		.fout = { .min = 25 * MEGA, .max = 1218 * MEGA },	\
+		.fvco = { .min = 1600 * MEGA, .max = 3200 * MEGA },	\
+		.m = { .min = 64, .max = 533 },				\
+		.p = { .min = 1, .max = 4 },				\
+		.s = { .min = 0, .max = 6 },				\
+		.k = { .min = -32768, .max = 32767 },			\
+	}								\
+
+#define RZG3E_CPG_PLL_DSI1_LIMITS(name)					\
+	static const struct rzv2h_pll_limits (name) = {			\
+		.fout = { .min = 25 * MEGA, .max = 609 * MEGA },	\
+		.fvco = { .min = 1600 * MEGA, .max = 3200 * MEGA },	\
+		.m = { .min = 64, .max = 533 },				\
+		.p = { .min = 1, .max = 4 },				\
+		.s = { .min = 0, .max = 6 },				\
+		.k = { .min = -32768, .max = 32767 },			\
+	}								\
+
 #ifdef CONFIG_CLK_RZV2H
 bool rzv2h_get_pll_pars(const struct rzv2h_pll_limits *limits,
 			struct rzv2h_pll_pars *pars, u64 freq_millihz);
-- 
2.43.0

[PATCH 04/22] clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1}_DIV7 clocks

[Tommaso Merciai]

Add the CLK_PLLDSI0_DIV7 and CLK_PLLDSI1_DIV7 fixed-factor clocks to
the r9a09g047 SoC clock driver.

These clocks are required to enable LVDS0 and LVDS1 output support.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 drivers/clk/renesas/r9a09g047-cpg.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
index 8d4c70533a79..0e707391283f 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -69,6 +69,8 @@ enum clk_ids {
 	CLK_PLLVDO_GPU,
 	CLK_PLLETH_DIV4_LPCLK,
 	CLK_PLLETH_LPCLK,
+	CLK_PLLDSI0_DIV7,
+	CLK_PLLDSI1_DIV7,
 
 	/* Module Clocks */
 	MOD_CLK_BASE,
@@ -196,6 +198,9 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_CSDIV(".plleth_lpclk", CLK_PLLETH_LPCLK, CLK_PLLETH_DIV4_LPCLK,
 		  CSDIV0_DIVCTL2, dtable_16_128),
 
+	DEF_FIXED(".plldsi0_div7", CLK_PLLDSI0_DIV7, CLK_PLLDSI0, 1, 7),
+	DEF_FIXED(".plldsi1_div7", CLK_PLLDSI1_DIV7, CLK_PLLDSI1, 1, 7),
+
 	/* Core Clocks */
 	DEF_FIXED("sys_0_pclk", R9A09G047_SYS_0_PCLK, CLK_QEXTAL, 1, 1),
 	DEF_DDIV("ca55_0_coreclk0", R9A09G047_CA55_0_CORECLK0, CLK_PLLCA55,
-- 
2.43.0

[PATCH 05/22] clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1}_CSDIV clocks

[Tommaso Merciai]

Add the CLK_PLLDSI0_CSDIV and CLK_PLLDSI1_CSDIV fixed-factor clocks to
the r9a09g047 SoC clock driver.

These clocks are required to enable DSI and RGB output support.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 drivers/clk/renesas/r9a09g047-cpg.c | 18 ++++++++++++++++++
 drivers/clk/renesas/rzv2h-cpg.h     |  1 +
 2 files changed, 19 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
index 0e707391283f..aa6528b72cef 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -71,6 +71,8 @@ enum clk_ids {
 	CLK_PLLETH_LPCLK,
 	CLK_PLLDSI0_DIV7,
 	CLK_PLLDSI1_DIV7,
+	CLK_PLLDSI0_CSDIV,
+	CLK_PLLDSI1_CSDIV,
 
 	/* Module Clocks */
 	MOD_CLK_BASE,
@@ -98,6 +100,18 @@ static const struct clk_div_table dtable_2_16[] = {
 	{0, 0},
 };
 
+static const struct clk_div_table dtable_2_16_plldsi[] = {
+	{0, 2},
+	{1, 4},
+	{2, 6},
+	{3, 8},
+	{4, 10},
+	{5, 12},
+	{6, 14},
+	{7, 16},
+	{0, 0},
+};
+
 static const struct clk_div_table dtable_2_64[] = {
 	{0, 2},
 	{1, 4},
@@ -198,6 +212,10 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_CSDIV(".plleth_lpclk", CLK_PLLETH_LPCLK, CLK_PLLETH_DIV4_LPCLK,
 		  CSDIV0_DIVCTL2, dtable_16_128),
 
+	DEF_PLLDSI_DIV(".plldsi0_csdiv", CLK_PLLDSI0_CSDIV, CLK_PLLDSI0,
+		       CSDIV1_DIVCTL2, dtable_2_16_plldsi),
+	DEF_PLLDSI_DIV(".plldsi1_csdiv", CLK_PLLDSI1_CSDIV, CLK_PLLDSI1,
+		       CSDIV1_DIVCTL3, dtable_2_16_plldsi),
 	DEF_FIXED(".plldsi0_div7", CLK_PLLDSI0_DIV7, CLK_PLLDSI0, 1, 7),
 	DEF_FIXED(".plldsi1_div7", CLK_PLLDSI1_DIV7, CLK_PLLDSI1, 1, 7),
 
diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index 5f6e775612e7..af881ff98b31 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -148,6 +148,7 @@ struct fixed_mod_conf {
 #define CSDIV0_DIVCTL2	DDIV_PACK(CPG_CSDIV0, 8, 2, CSDIV_NO_MON)
 #define CSDIV0_DIVCTL3	DDIV_PACK_NO_RMW(CPG_CSDIV0, 12, 2, CSDIV_NO_MON)
 #define CSDIV1_DIVCTL2	DDIV_PACK(CPG_CSDIV1, 8, 4, CSDIV_NO_MON)
+#define CSDIV1_DIVCTL3	DDIV_PACK(CPG_CSDIV1, 12, 4, CSDIV_NO_MON)
 
 #define SSEL0_SELCTL2	SMUX_PACK(CPG_SSEL0, 8, 1)
 #define SSEL0_SELCTL3	SMUX_PACK(CPG_SSEL0, 12, 1)
-- 
2.43.0

[PATCH 06/22] clk: renesas: r9a09g047: Add support for SMUX2_DSI{0,1}_CLK

[Tommaso Merciai]

Add support for the SMUX2_DSI0_CLK and SMUX2_DSI1_CLK clock muxes
present on the r9a09g047 SoC.

These muxes select between CDIV7_DSI{0,1}_CLK and CSDIV_2to16_PLLDSI{0,1}
using the CPG_SSEL3 register (SELCTL0 and SELCTL1 bits).

According to the hardware manual, when LVDS0 or LVDS1 outputs are used,
SELCTL0 or SELCTL1 must be set accordingly.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 drivers/clk/renesas/r9a09g047-cpg.c | 8 ++++++++
 drivers/clk/renesas/rzv2h-cpg.h     | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
index aa6528b72cef..c8863eded44d 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -64,6 +64,8 @@ enum clk_ids {
 	CLK_SMUX2_GBE0_RXCLK,
 	CLK_SMUX2_GBE1_TXCLK,
 	CLK_SMUX2_GBE1_RXCLK,
+	CLK_SMUX2_DSI0_CLK,
+	CLK_SMUX2_DSI1_CLK,
 	CLK_PLLDTY_DIV16,
 	CLK_PLLVDO_CRU0,
 	CLK_PLLVDO_GPU,
@@ -143,6 +145,8 @@ RZG3E_CPG_PLL_DSI1_LIMITS(rzg3e_cpg_pll_dsi1_limits);
 #define PLLDSI1		PLL_PACK_LIMITS(0x160, 1, 1, &rzg3e_cpg_pll_dsi1_limits)
 
 /* Mux clock tables */
+static const char * const smux2_dsi0_clk[] = { ".plldsi0_div7", ".plldsi0_csdiv" };
+static const char * const smux2_dsi1_clk[] = { ".plldsi1_div7", ".plldsi1_csdiv" };
 static const char * const smux2_gbe0_rxclk[] = { ".plleth_gbe0", "et0_rxclk" };
 static const char * const smux2_gbe0_txclk[] = { ".plleth_gbe0", "et0_txclk" };
 static const char * const smux2_gbe1_rxclk[] = { ".plleth_gbe1", "et1_rxclk" };
@@ -218,6 +222,10 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 		       CSDIV1_DIVCTL3, dtable_2_16_plldsi),
 	DEF_FIXED(".plldsi0_div7", CLK_PLLDSI0_DIV7, CLK_PLLDSI0, 1, 7),
 	DEF_FIXED(".plldsi1_div7", CLK_PLLDSI1_DIV7, CLK_PLLDSI1, 1, 7),
+	DEF_PLLDSI_SMUX(".smux2_dsi0_clk", CLK_SMUX2_DSI0_CLK,
+			SSEL3_SELCTL0, smux2_dsi0_clk),
+	DEF_PLLDSI_SMUX(".smux2_dsi1_clk", CLK_SMUX2_DSI1_CLK,
+			SSEL3_SELCTL1, smux2_dsi1_clk),
 
 	/* Core Clocks */
 	DEF_FIXED("sys_0_pclk", R9A09G047_SYS_0_PCLK, CLK_QEXTAL, 1, 1),
diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index af881ff98b31..4492f4e7b9ae 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -121,6 +121,7 @@ struct fixed_mod_conf {
 
 #define CPG_SSEL0		(0x300)
 #define CPG_SSEL1		(0x304)
+#define CPG_SSEL3		(0x30C)
 #define CPG_CDDIV0		(0x400)
 #define CPG_CDDIV1		(0x404)
 #define CPG_CDDIV2		(0x408)
@@ -156,6 +157,8 @@ struct fixed_mod_conf {
 #define SSEL1_SELCTL1	SMUX_PACK(CPG_SSEL1, 4, 1)
 #define SSEL1_SELCTL2	SMUX_PACK(CPG_SSEL1, 8, 1)
 #define SSEL1_SELCTL3	SMUX_PACK(CPG_SSEL1, 12, 1)
+#define SSEL3_SELCTL0	SMUX_PACK(CPG_SSEL3, 0, 1)
+#define SSEL3_SELCTL1	SMUX_PACK(CPG_SSEL3, 4, 1)
 
 #define BUS_MSTOP_IDX_MASK	GENMASK(31, 16)
 #define BUS_MSTOP_BITS_MASK	GENMASK(15, 0)
-- 
2.43.0

[PATCH 07/22] clk: renesas: r9a09g047: Add support for DSI clocks and resets

[Tommaso Merciai]

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

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 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 c8863eded44d..236598d83c7f 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -486,6 +486,18 @@ 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_vclk2",			CLK_SMUX2_DSI1_CLK, 25, 0, 10, 21,
+						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,
@@ -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

[PATCH 08/22] clk: renesas: r9a09g047: Add support for LCDC{0,1} clocks and resets

[Tommaso Merciai]

Add LCDC{0,1} clocks and resets entries to the r9a09g047 CPG driver.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 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 236598d83c7f..739c1ec9ad76 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -498,6 +498,12 @@ static const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = {
 						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("lcdc_0_clk_a",			CLK_PLLDTY_ACPU_DIV2, 14, 13, 7, 13,
+						BUS_MSTOP(10, BIT(3) | BIT(2) | BIT(1))),
+	DEF_MOD("lcdc_0_clk_p",			CLK_PLLDTY_DIV16, 14, 14, 7, 14,
+						BUS_MSTOP(10, BIT(3) | BIT(2) | BIT(1))),
+	DEF_MOD("lcdc_0_clk_d",			CLK_SMUX2_DSI0_CLK, 14, 15, 7, 15,
+						BUS_MSTOP(10, BIT(3) | BIT(2) | BIT(1))),
 	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,
@@ -506,6 +512,12 @@ 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("lcdc_1_clk_a",			CLK_PLLDTY_ACPU_DIV2, 26, 8, 10, 30,
+						BUS_MSTOP(13, BIT(5) | BIT(4) | BIT(3))),
+	DEF_MOD("lcdc_1_clk_p",			CLK_PLLDTY_DIV16, 26, 9, 10, 31,
+						BUS_MSTOP(13, BIT(5) | BIT(4) | BIT(3))),
+	DEF_MOD("lcdc_1_clk_d",			CLK_SMUX2_DSI1_CLK, 26, 10, 11, 0,
+						BUS_MSTOP(13, BIT(5) | BIT(4) | BIT(3))),
 };
 
 static const struct rzv2h_reset r9a09g047_resets[] __initconst = {
@@ -576,10 +588,12 @@ static const struct rzv2h_reset r9a09g047_resets[] __initconst = {
 	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, 12, 6, 13),		/* LCDC_0_RESET_N */
 	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 */
 	DEF_RST(15, 8, 7, 9),		/* TSU_1_PRESETN */
+	DEF_RST(17, 14, 8, 15),		/* LCDC_1_RESET_N */
 };
 
 const struct rzv2h_cpg_info r9a09g047_cpg_info __initconst = {
-- 
2.43.0

[PATCH 09/22] dt-bindings: display: bridge: renesas,dsi: Add support for RZ/G3E SoC

[Tommaso Merciai]

The MIPI DSI interface on the RZ/G3E SoC is nearly identical to that of
the RZ/V2H(P) SoC, except that this have 2 input port and can use vclk1
or vclk2 as DSI Video clock, depending on the selected port.

To accommodate these differences, a SoC-specific
`renesas,r9a09g047-mipi-dsi` compatible string has been added for the
RZ/G3E SoC.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 .../bindings/display/bridge/renesas,dsi.yaml  | 120 +++++++++++++++---
 1 file changed, 101 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
index c20625b8425e..9917b494a9c9 100644
--- a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
@@ -28,6 +28,7 @@ properties:
           - const: renesas,r9a09g057-mipi-dsi
 
       - enum:
+          - renesas,r9a09g047-mipi-dsi # RZ/G3E
           - renesas,r9a09g057-mipi-dsi # RZ/V2H(P)
 
   reg:
@@ -84,6 +85,13 @@ properties:
           - const: pclk
           - const: vclk
           - const: lpclk
+      - items:
+          - const: pllrefclk
+          - const: aclk
+          - const: pclk
+          - const: vclk1
+          - const: vclk2
+          - const: lpclk
 
   resets:
     oneOf:
@@ -136,13 +144,6 @@ properties:
                   - const: 3
                   - const: 4
 
-            required:
-              - data-lanes
-
-    required:
-      - port@0
-      - port@1
-
 required:
   - compatible
   - reg
@@ -164,14 +165,76 @@ allOf:
       properties:
         compatible:
           contains:
-            const: renesas,r9a09g057-mipi-dsi
+            const: renesas,r9a09g047-mipi-dsi
+    then:
+      properties:
+        ports:
+          properties:
+            port@0:
+              description: DSI input port 0
+            port@1:
+              description: DSI input port 1
+              properties:
+                endpoint:
+                  properties:
+                    data-lanes: false
+            port@2:
+              description: DSI output port
+              properties:
+                endpoint:
+                  $ref: /schemas/media/video-interfaces.yaml#
+                  unevaluatedProperties: false
+
+                  properties:
+                    data-lanes:
+                      description: array of physical DSI data lane indexes.
+                      minItems: 1
+                      items:
+                        - const: 1
+                        - const: 2
+                        - const: 3
+                        - const: 4
+                  required:
+                    - data-lanes
+
+          required:
+            - port@0
+            - port@1
+            - port@2
+    else:
+      properties:
+        ports:
+          properties:
+            port@0: true
+            port@1:
+              properties:
+                endpoint:
+                  properties:
+                    data-lanes: true
+                  required:
+                    - data-lanes
+
+          required:
+            - port@0
+            - port@1
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a09g047-mipi-dsi
     then:
       properties:
         clocks:
-          maxItems: 5
+          items:
+            - description: DSI PLL reference input clock
+            - description: DSI AXI bus clock
+            - description: DSI Register access clock
+            - description: DSI Video clock
+            - description: DSI Video clock (2nd input clock)
+            - description: DSI D-PHY Escape mode transmit clock
 
         clock-names:
-          maxItems: 5
+          minItems: 6
 
         resets:
           maxItems: 2
@@ -179,18 +242,37 @@ allOf:
         reset-names:
           maxItems: 2
     else:
-      properties:
-        clocks:
-          minItems: 6
+      if:
+        properties:
+          compatible:
+            contains:
+              const: renesas,r9a09g057-mipi-dsi
+      then:
+        properties:
+          clocks:
+            maxItems: 5
 
-        clock-names:
-          minItems: 6
+          clock-names:
+            maxItems: 5
 
-        resets:
-          minItems: 3
+          resets:
+            maxItems: 2
 
-        reset-names:
-          minItems: 3
+          reset-names:
+            maxItems: 2
+      else:
+        properties:
+          clocks:
+            minItems: 6
+
+          clock-names:
+            minItems: 6
+
+          resets:
+            minItems: 3
+
+          reset-names:
+            minItems: 3
 
 examples:
   - |
-- 
2.43.0

Re: [PATCH 09/22] dt-bindings: display: bridge: renesas,dsi: Add support for RZ/G3E SoC

[Krzysztof Kozlowski]

On 26/11/2025 15:07, Tommaso Merciai wrote:
> The MIPI DSI interface on the RZ/G3E SoC is nearly identical to that of
> the RZ/V2H(P) SoC, except that this have 2 input port and can use vclk1
> or vclk2 as DSI Video clock, depending on the selected port.
> 
> To accommodate these differences, a SoC-specific
> `renesas,r9a09g047-mipi-dsi` compatible string has been added for the
> RZ/G3E SoC.
> 
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
> ---
>  .../bindings/display/bridge/renesas,dsi.yaml  | 120 +++++++++++++++---
>  1 file changed, 101 insertions(+), 19 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
> index c20625b8425e..9917b494a9c9 100644
> --- a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
> +++ b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
> @@ -28,6 +28,7 @@ properties:
>            - const: renesas,r9a09g057-mipi-dsi
>  
>        - enum:
> +          - renesas,r9a09g047-mipi-dsi # RZ/G3E
>            - renesas,r9a09g057-mipi-dsi # RZ/V2H(P)
>  
>    reg:
> @@ -84,6 +85,13 @@ properties:
>            - const: pclk
>            - const: vclk
>            - const: lpclk
> +      - items:
> +          - const: pllrefclk
> +          - const: aclk
> +          - const: pclk
> +          - const: vclk1
> +          - const: vclk2
> +          - const: lpclk

Why are you creating completely new lists every time?

No, come with unified approach.

Best regards,
Krzysztof

[PATCH 10/22] dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC

[Tommaso Merciai]

The RZ/G3E Soc has 2 LCD controller (LCDC), contain a Frame Compression
Processor (FCPVD), a Video Signal Processor (VSPD), Video Signal
Processor (VSPD), and Display Unit (DU).

 - LCDC0 supports DSI and LVDS (single or dual-channel) outputs.
 - LCDC1 supports DSI, LVDS (single-channel), and RGB outputs.

Add then two new SoC-specific compatible strings 'renesas,r9a09g047-du0'
and 'renesas,r9a09g047-du1'.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 .../bindings/display/renesas,rzg2l-du.yaml    | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
index 2cc66dcef870..a68252ae02fb 100644
--- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
+++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
@@ -20,6 +20,8 @@ properties:
       - enum:
           - renesas,r9a07g043u-du # RZ/G2UL
           - renesas,r9a07g044-du # RZ/G2{L,LC}
+          - renesas,r9a09g047-du0 # RZ/G3E DU0
+          - renesas,r9a09g047-du1 # RZ/G3E DU1
           - renesas,r9a09g057-du # RZ/V2H(P)
       - items:
           - enum:
@@ -137,6 +139,46 @@ allOf:
 
           required:
             - port@0
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a09g047-du0
+    then:
+      properties:
+        ports:
+          properties:
+            port@0:
+              description: DSI
+            port@1:
+              description: LVDS
+            port@2:
+              description: LVDS
+
+          required:
+            - port@0
+            - port@1
+            - port@2
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a09g047-du1
+    then:
+      properties:
+        ports:
+          properties:
+            port@0:
+              description: DSI
+            port@1:
+              description: LVDS
+            port@2:
+              description: DPAD
+
+          required:
+            - port@0
+            - port@1
+            - port@2
 
 examples:
   # RZ/G2L DU
-- 
2.43.0

Re: [PATCH 10/22] dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC

[Krzysztof Kozlowski]

On Wed, Nov 26, 2025 at 03:07:22PM +0100, Tommaso Merciai wrote:
> The RZ/G3E Soc has 2 LCD controller (LCDC), contain a Frame Compression
> Processor (FCPVD), a Video Signal Processor (VSPD), Video Signal
> Processor (VSPD), and Display Unit (DU).
> 
>  - LCDC0 supports DSI and LVDS (single or dual-channel) outputs.
>  - LCDC1 supports DSI, LVDS (single-channel), and RGB outputs.
> 
> Add then two new SoC-specific compatible strings 'renesas,r9a09g047-du0'
> and 'renesas,r9a09g047-du1'.

LCDC0/1 but compatibles du0/du1...

What are the differences between DU0 and DU1? Just different outputs? Is
the programming model the same?

Best regards,
Krzysztof

Re: [PATCH 10/22] dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC

[Tommaso Merciai]

Hi Krzysztof,
Thanks for your review!

On Wed, Dec 03, 2025 at 09:23:53AM +0100, Krzysztof Kozlowski wrote:
> On Wed, Nov 26, 2025 at 03:07:22PM +0100, Tommaso Merciai wrote:
> > The RZ/G3E Soc has 2 LCD controller (LCDC), contain a Frame Compression
> > Processor (FCPVD), a Video Signal Processor (VSPD), Video Signal
> > Processor (VSPD), and Display Unit (DU).
> > 
> >  - LCDC0 supports DSI and LVDS (single or dual-channel) outputs.
> >  - LCDC1 supports DSI, LVDS (single-channel), and RGB outputs.
> > 
> > Add then two new SoC-specific compatible strings 'renesas,r9a09g047-du0'
> > and 'renesas,r9a09g047-du1'.
> 
> LCDC0/1 but compatibles du0/du1...
> 
> What are the differences between DU0 and DU1? Just different outputs? Is
> the programming model the same?

The hardware configurations are different: these are two distinct hardware blocks.

Based on the block diagrams shown in Figures 9.4-2 (LCDC1) and 9.4-1 (LCDC0),
the only difference concerns the output, but this variation is internal to the
hardware blocks themselves.
Therefore, LCDC0 and LCDC1 are not identical blocks, and their programming models
differ as a result.

In summary, although most of the internal functions are the same, the two blocks
have output signals connected to different components within the SoC.
This requires different hardware configurations and inevitably leads to different
programming models for LCDC0 and LCDC1.


Kind Regards,
Tommaso


> 
> Best regards,
> Krzysztof
> 

[PATCH 11/22] drm: renesas: rz-du: mipi_dsi: Add out_port to OF data

[Tommaso Merciai]

Add `out_port` field to the `rzg2l_mipi_dsi_hw_info` structure to store
the DSI output port index. RZ/G2L and RZ/V2H(P) use port 1 for DSI
output, while RZ/G3E uses port 2.

Update `rzg2l_mipi_dsi_host_attach()` and `rzg2l_mipi_dsi_probe()` to
use this `out_port` from the OF data, facilitating future support for
RZ/G3E SoC.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
index 5edd45424562..ccc2758bafb0 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
@@ -58,6 +58,7 @@ struct rzg2l_mipi_dsi_hw_info {
 	u32 link_reg_offset;
 	unsigned long min_dclk;
 	unsigned long max_dclk;
+	int out_port;
 	u8 features;
 };
 
@@ -1145,7 +1146,7 @@ static int rzg2l_mipi_dsi_host_attach(struct mipi_dsi_host *host,
 	dsi->mode_flags = device->mode_flags;
 
 	dsi->next_bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node,
-						  1, 0);
+						  dsi->info->out_port, 0);
 	if (IS_ERR(dsi->next_bridge)) {
 		ret = PTR_ERR(dsi->next_bridge);
 		dev_err(dsi->dev, "failed to get next bridge: %d\n", ret);
@@ -1386,7 +1387,9 @@ static int rzg2l_mipi_dsi_probe(struct platform_device *pdev)
 
 	dsi->info = of_device_get_match_data(&pdev->dev);
 
-	ret = drm_of_get_data_lanes_count_ep(dsi->dev->of_node, 1, 0, 1, 4);
+	ret = drm_of_get_data_lanes_count_ep(dsi->dev->of_node,
+					     dsi->info->out_port,
+					     0, 1, 4);
 	if (ret < 0)
 		return dev_err_probe(dsi->dev, ret,
 				     "missing or invalid data-lanes property\n");
@@ -1500,6 +1503,7 @@ static const struct rzg2l_mipi_dsi_hw_info rzv2h_mipi_dsi_info = {
 	.link_reg_offset = 0,
 	.min_dclk = 5440,
 	.max_dclk = 187500,
+	.out_port = 1,
 	.features = RZ_MIPI_DSI_FEATURE_16BPP,
 };
 
@@ -1510,6 +1514,7 @@ static const struct rzg2l_mipi_dsi_hw_info rzg2l_mipi_dsi_info = {
 	.link_reg_offset = 0x10000,
 	.min_dclk = 5803,
 	.max_dclk = 148500,
+	.out_port = 1,
 };
 
 static const struct of_device_id rzg2l_mipi_dsi_of_table[] = {
-- 
2.43.0

[PATCH 12/22] drm: renesas: rz-du: mipi_dsi: Add RZ_MIPI_DSI_FEATURE_GPO0R feature

[Tommaso Merciai]

The MIPI DSI ip found in the RZ/G3E SoC select the video input clock
based on the DU instance actually connected using the GPO0R register.

Add this feature to the driver using `RZ_MIPI_DSI_FEATURE_GPO0R`, update
the code accordingly to manage the vclk selection with the introduction
of `rzg2l_mipi_dsi_get_input_port()`.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 .../gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c    | 67 +++++++++++++++++--
 .../drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h   |  3 +
 2 files changed, 64 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
index ccc2758bafb0..59125460cf57 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
@@ -37,7 +37,9 @@ MODULE_IMPORT_NS("RZV2H_CPG");
 
 #define RZG2L_DCS_BUF_SIZE	128 /* Maximum DCS buffer size in external memory. */
 
+#define RZ_MIPI_DSI_MAX_INPUT	2
 #define RZ_MIPI_DSI_FEATURE_16BPP	BIT(0)
+#define RZ_MIPI_DSI_FEATURE_GPO0R	BIT(1)
 
 struct rzg2l_mipi_dsi;
 
@@ -81,13 +83,14 @@ struct rzg2l_mipi_dsi {
 	struct drm_bridge bridge;
 	struct drm_bridge *next_bridge;
 
-	struct clk *vclk;
+	struct clk *vclk[RZ_MIPI_DSI_MAX_INPUT];
 	struct clk *lpclk;
 
 	enum mipi_dsi_pixel_format format;
 	unsigned int num_data_lanes;
 	unsigned int lanes;
 	unsigned long mode_flags;
+	u8 vclk_idx;
 
 	struct rzv2h_dsi_mode_calc mode_calc;
 
@@ -552,8 +555,8 @@ static int rzg2l_dphy_conf_clks(struct rzg2l_mipi_dsi *dsi, unsigned long mode_f
 	unsigned long vclk_rate;
 	unsigned int bpp;
 
-	clk_set_rate(dsi->vclk, mode_freq * KILO);
-	vclk_rate = clk_get_rate(dsi->vclk);
+	clk_set_rate(dsi->vclk[dsi->vclk_idx], mode_freq * KILO);
+	vclk_rate = clk_get_rate(dsi->vclk[dsi->vclk_idx]);
 	if (vclk_rate != mode_freq * KILO)
 		dev_dbg(dsi->dev, "Requested vclk rate %lu, actual %lu mismatch\n",
 			mode_freq * KILO, vclk_rate);
@@ -764,6 +767,11 @@ static int rzg2l_mipi_dsi_startup(struct rzg2l_mipi_dsi *dsi,
 	if (ret < 0)
 		goto err_phy;
 
+	if (dsi->info->features & RZ_MIPI_DSI_FEATURE_GPO0R)
+		rzg2l_mipi_dsi_link_write(dsi, GPO0R, dsi->vclk_idx);
+
+	dev_dbg(dsi->dev, "selected du%d input channel\n", dsi->vclk_idx);
+
 	/* Enable Data lanes and Clock lanes */
 	txsetr = TXSETR_DLEN | TXSETR_NUMLANEUSE(dsi->lanes - 1) | TXSETR_CLEN;
 	rzg2l_mipi_dsi_link_write(dsi, TXSETR, txsetr);
@@ -1006,6 +1014,37 @@ static int rzg2l_mipi_dsi_stop_video(struct rzg2l_mipi_dsi *dsi)
 	return ret;
 }
 
+static int rzg2l_mipi_dsi_get_input_port(struct rzg2l_mipi_dsi *dsi)
+{
+	struct device_node *np = dsi->dev->of_node;
+	struct device_node *remote_ep, *ep_node;
+	struct of_endpoint ep;
+	bool ep_enabled;
+	int in_port;
+
+	/* DSI can have only one port enabled */
+	for_each_endpoint_of_node(np, ep_node) {
+		of_graph_parse_endpoint(ep_node, &ep);
+		if (ep.port >= RZ_MIPI_DSI_MAX_INPUT)
+			break;
+
+		remote_ep = of_graph_get_remote_endpoint(ep_node);
+		ep_enabled = of_device_is_available(remote_ep);
+		of_node_put(remote_ep);
+
+		if (ep_enabled) {
+			in_port = ep.port;
+			break;
+		}
+	}
+
+	if (!ep_enabled)
+		return -EINVAL;
+
+	dev_dbg(dsi->dev, "input port@%d\n", in_port);
+	return in_port;
+}
+
 /* -----------------------------------------------------------------------------
  * Bridge
  */
@@ -1400,9 +1439,25 @@ static int rzg2l_mipi_dsi_probe(struct platform_device *pdev)
 	if (IS_ERR(dsi->mmio))
 		return PTR_ERR(dsi->mmio);
 
-	dsi->vclk = devm_clk_get(dsi->dev, "vclk");
-	if (IS_ERR(dsi->vclk))
-		return PTR_ERR(dsi->vclk);
+	if (dsi->info->features & RZ_MIPI_DSI_FEATURE_GPO0R) {
+		dsi->vclk[0] = devm_clk_get(dsi->dev, "vclk1");
+		if (IS_ERR(dsi->vclk[0]))
+			return PTR_ERR(dsi->vclk[0]);
+
+		dsi->vclk[1] = devm_clk_get(dsi->dev, "vclk2");
+		if (IS_ERR(dsi->vclk[1]))
+			return PTR_ERR(dsi->vclk[1]);
+
+		ret = rzg2l_mipi_dsi_get_input_port(dsi);
+		if (ret < 0)
+			return dev_err_probe(dsi->dev, -EINVAL,
+					     "No available input port\n");
+		dsi->vclk_idx = ret;
+	} else {
+		dsi->vclk[0] = devm_clk_get(dsi->dev, "vclk");
+		if (IS_ERR(dsi->vclk[0]))
+			return PTR_ERR(dsi->vclk[0]);
+	}
 
 	dsi->lpclk = devm_clk_get(dsi->dev, "lpclk");
 	if (IS_ERR(dsi->lpclk))
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h
index 2bef20566648..cee2e0bc5dc5 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h
@@ -83,6 +83,9 @@
 #define LINKSR_SQCHRUN1			BIT(4)
 #define LINKSR_SQCHRUN0			BIT(0)
 
+/* RZ/G3E General Purpose Output 0 Register */
+#define GPO0R				0xc0
+
 /* Tx Set Register */
 #define TXSETR				0x100
 #define TXSETR_NUMLANECAP		(0x3 << 16)
-- 
2.43.0

[PATCH 13/22] drm: renesas: rz-du: mipi_dsi: Add support for RZ/G3E

[Tommaso Merciai]

Add MIPI DSI support for the Renesas RZ/G3E SoC.

RZ/V2H(P) and RZ/G3E share identical PLLDSI divider constraints from the
DSI PHY perspective, so both can reuse the existing
rzv2h_plldsi_div_limits structure. However, at the CPG level the limits
differ:

 - PLLDSI0 limits apply when vclk1 is used.
 - PLLDSI1 limits apply when vclk2 is used.

To support this introduce rzg3e_plldsis_limits for RZ/G3E SoC.

During rzv2h_dphy_mode_clk_check(), the appropriate limits are selected
dynamically based on vclk_idx, which reflects the currently selected
vclk.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 .../gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c    | 33 ++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
index 59125460cf57..f37c081f7642 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
@@ -590,7 +590,7 @@ static unsigned int rzv2h_dphy_mode_clk_check(struct rzg2l_mipi_dsi *dsi,
 	mode_freq_hz = mul_u32_u32(mode_freq, KILO);
 	mode_freq_millihz = mode_freq_hz * MILLI;
 	parameters_found =
-		rzv2h_get_pll_divs_pars(dsi->info->cpg_plldsi.limits[0],
+		rzv2h_get_pll_divs_pars(dsi->info->cpg_plldsi.limits[dsi->vclk_idx],
 					&cpg_dsi_parameters,
 					dsi->info->cpg_plldsi.table,
 					dsi->info->cpg_plldsi.table_size,
@@ -1535,6 +1535,36 @@ static void rzg2l_mipi_dsi_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 }
 
+RZG3E_CPG_PLL_DSI0_LIMITS(rzg3e_cpg_pll_dsi0_limits);
+RZG3E_CPG_PLL_DSI1_LIMITS(rzg3e_cpg_pll_dsi1_limits);
+
+static const struct rzv2h_pll_limits *rzg3e_plldsis_limits[] = {
+	&rzg3e_cpg_pll_dsi0_limits,
+	&rzg3e_cpg_pll_dsi1_limits,
+};
+
+static const u8 rzg3e_cpg_div_table[] = {
+	2, 4, 6, 8, 10, 12, 14, 16,
+};
+
+static struct rzg2l_mipi_dsi_hw_info rzg3e_mipi_dsi_info = {
+	.dphy_init = rzv2h_mipi_dsi_dphy_init,
+	.dphy_startup_late_init = rzv2h_mipi_dsi_dphy_startup_late_init,
+	.dphy_exit = rzv2h_mipi_dsi_dphy_exit,
+	.dphy_mode_clk_check = rzv2h_dphy_mode_clk_check,
+	.dphy_conf_clks = rzv2h_dphy_conf_clks,
+	.cpg_plldsi.limits = rzg3e_plldsis_limits,
+	.cpg_plldsi.table = rzg3e_cpg_div_table,
+	.cpg_plldsi.table_size = ARRAY_SIZE(rzg3e_cpg_div_table),
+	.phy_reg_offset = 0x10000,
+	.link_reg_offset = 0,
+	.min_dclk = 5440,
+	.max_dclk = 187500,
+	.out_port = 2,
+	.features = RZ_MIPI_DSI_FEATURE_16BPP |
+		    RZ_MIPI_DSI_FEATURE_GPO0R,
+};
+
 RZV2H_CPG_PLL_DSI_LIMITS(rzv2h_cpg_pll_dsi_limits);
 
 static const struct rzv2h_pll_limits *rzv2h_plldsi_limits[] = {
@@ -1573,6 +1603,7 @@ static const struct rzg2l_mipi_dsi_hw_info rzg2l_mipi_dsi_info = {
 };
 
 static const struct of_device_id rzg2l_mipi_dsi_of_table[] = {
+	{ .compatible = "renesas,r9a09g047-mipi-dsi", .data = &rzg3e_mipi_dsi_info, },
 	{ .compatible = "renesas,r9a09g057-mipi-dsi", .data = &rzv2h_mipi_dsi_info, },
 	{ .compatible = "renesas,rzg2l-mipi-dsi", .data = &rzg2l_mipi_dsi_info, },
 	{ /* sentinel */ }
-- 
2.43.0

[PATCH 14/22] drm: renesas: rz-du: Add RZ/G3E support

[Tommaso Merciai]

The RZ/G3E Soc has 2 LCD controller (LCDC), contain a Frame Compression
Processor (FCPVD), a Video Signal Processor (VSPD), Video Signal
Processor (VSPD), and Display Unit (DU).

LCDC0 supports DSI and LVDS (single or dual-channel) outputs.
LCDC1 supports DSI, LVDS (single-channel), and RGB outputs.

Depending on the selected output, the correct SMUX2 clock parent must be
chosen:

 - Index 0 if LVDS0 or LVDS1 is used
 - Index 1 for all other cases

To support this behavior, introduce the `RG2L_DU_FEATURE_SMUX2_DSI_CLK`
feature flag and extend the `rzg2l_du_device_info` structure to include a
features field. Also, add a new helper function `rzg2l_du_has()` to check
for feature flags.

Add support for the RZ/G3E SoC by introducing:
 - `rzg2l_du_r9a09g047_du{0,1}_info` structures
 - The `renesas,r9a09g047-du{0,1}` compatible strings

Additionally, introduce the missing output definitions
`RZG2L_DU_OUTPUT_LVDS{0,1}`.

Introduce `rzg2l_du_crtc_atomic_check()` helper to store the routes from
the CRTC output to the DU outputs.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c | 51 +++++++++++++++++++
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c  | 42 +++++++++++++++
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h  | 11 ++++
 3 files changed, 104 insertions(+)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c
index 6e7aac6219be..044ac16256c7 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/clk.h>
+#include <linux/clk-provider.h>
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
 #include <linux/reset.h>
@@ -64,11 +65,34 @@
 static void rzg2l_du_crtc_set_display_timing(struct rzg2l_du_crtc *rcrtc)
 {
 	const struct drm_display_mode *mode = &rcrtc->crtc.state->adjusted_mode;
+	struct rzg2l_du_crtc_state *rstate =
+		to_rzg2l_crtc_state(rcrtc->crtc.state);
 	unsigned long mode_clock = mode->clock * 1000;
 	u32 ditr0, ditr1, ditr2, ditr3, ditr4, pbcr0;
 	struct rzg2l_du_device *rcdu = rcrtc->dev;
 
 	clk_prepare_enable(rcrtc->rzg2l_clocks.dclk);
+
+	if (rzg2l_du_has(rcdu, RG2L_DU_FEATURE_SMUX2_DSI_CLK)) {
+		struct clk_hw *hw_parent, *hw_pparent;
+		struct clk *clk_parent;
+
+		clk_parent = clk_get_parent(rcrtc->rzg2l_clocks.dclk);
+		hw_parent = __clk_get_hw(clk_parent);
+
+		/*
+		 * SMUX2_DSI0_CLK: if LVDS0 is used, be sure to set 0b.
+		 * SMUX2_DSI1_CLK: if LVDS1 is used, be sure to set 0b.
+		 */
+		if (rstate->outputs == BIT(RZG2L_DU_OUTPUT_LVDS0) ||
+		    rstate->outputs == BIT(RZG2L_DU_OUTPUT_LVDS1))
+			hw_pparent = clk_hw_get_parent_by_index(hw_parent, 0);
+		else
+			hw_pparent = clk_hw_get_parent_by_index(hw_parent, 1);
+
+		clk_set_parent(clk_parent, hw_pparent->clk);
+	}
+
 	clk_set_rate(rcrtc->rzg2l_clocks.dclk, mode_clock);
 
 	ditr0 = (DU_DITR0_DEMD_HIGH
@@ -248,6 +272,32 @@ static void rzg2l_du_crtc_stop(struct rzg2l_du_crtc *rcrtc)
  * CRTC Functions
  */
 
+static int rzg2l_du_crtc_atomic_check(struct drm_crtc *crtc,
+				      struct drm_atomic_state *state)
+{
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	struct rzg2l_du_crtc_state *rstate = to_rzg2l_crtc_state(crtc_state);
+	struct drm_encoder *encoder;
+
+	/* Store the routes from the CRTC output to the DU outputs. */
+	rstate->outputs = 0;
+
+	drm_for_each_encoder_mask(encoder, crtc->dev,
+				  crtc_state->encoder_mask) {
+		struct rzg2l_du_encoder *renc;
+
+		/* Skip the writeback encoder. */
+		if (encoder->encoder_type == DRM_MODE_ENCODER_VIRTUAL)
+			continue;
+
+		renc = to_rzg2l_encoder(encoder);
+		rstate->outputs |= BIT(renc->output);
+	}
+
+	return 0;
+}
+
 static void rzg2l_du_crtc_atomic_enable(struct drm_crtc *crtc,
 					struct drm_atomic_state *state)
 {
@@ -296,6 +346,7 @@ static void rzg2l_du_crtc_atomic_flush(struct drm_crtc *crtc,
 }
 
 static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
+	.atomic_check = rzg2l_du_crtc_atomic_check,
 	.atomic_flush = rzg2l_du_crtc_atomic_flush,
 	.atomic_enable = rzg2l_du_crtc_atomic_enable,
 	.atomic_disable = rzg2l_du_crtc_atomic_disable,
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
index 0fef33a5a089..73ff095e49ae 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
@@ -51,6 +51,44 @@ static const struct rzg2l_du_device_info rzg2l_du_r9a07g044_info = {
 	}
 };
 
+static const struct rzg2l_du_device_info rzg2l_du_r9a09g047_du0_info = {
+	.features = RG2L_DU_FEATURE_SMUX2_DSI_CLK,
+	.channels_mask = BIT(0),
+	.routes = {
+		[RZG2L_DU_OUTPUT_DSI0] = {
+			.possible_outputs = BIT(0),
+			.port = 0,
+		},
+		[RZG2L_DU_OUTPUT_LVDS0] = {
+			.possible_outputs = BIT(0),
+			.port = 1,
+		},
+		[RZG2L_DU_OUTPUT_LVDS1] = {
+			.possible_outputs = BIT(0),
+			.port = 2,
+		},
+	},
+};
+
+static const struct rzg2l_du_device_info rzg2l_du_r9a09g047_du1_info = {
+	.features = RG2L_DU_FEATURE_SMUX2_DSI_CLK,
+	.channels_mask = BIT(0),
+	.routes = {
+		[RZG2L_DU_OUTPUT_DSI0] = {
+			.possible_outputs = BIT(0),
+			.port = 0,
+		},
+		[RZG2L_DU_OUTPUT_LVDS0] = {
+			.possible_outputs = BIT(0),
+			.port = 1,
+		},
+		[RZG2L_DU_OUTPUT_DPAD0] = {
+			.possible_outputs = BIT(0),
+			.port = 2,
+		},
+	},
+};
+
 static const struct rzg2l_du_device_info rzg2l_du_r9a09g057_info = {
 	.channels_mask = BIT(0),
 	.routes = {
@@ -64,6 +102,8 @@ static const struct rzg2l_du_device_info rzg2l_du_r9a09g057_info = {
 static const struct of_device_id rzg2l_du_of_table[] = {
 	{ .compatible = "renesas,r9a07g043u-du", .data = &rzg2l_du_r9a07g043u_info },
 	{ .compatible = "renesas,r9a07g044-du", .data = &rzg2l_du_r9a07g044_info },
+	{ .compatible = "renesas,r9a09g047-du0", .data = &rzg2l_du_r9a09g047_du0_info },
+	{ .compatible = "renesas,r9a09g047-du1", .data = &rzg2l_du_r9a09g047_du1_info },
 	{ .compatible = "renesas,r9a09g057-du", .data = &rzg2l_du_r9a09g057_info },
 	{ /* sentinel */ }
 };
@@ -74,6 +114,8 @@ const char *rzg2l_du_output_name(enum rzg2l_du_output output)
 {
 	static const char * const names[] = {
 		[RZG2L_DU_OUTPUT_DSI0] = "DSI0",
+		[RZG2L_DU_OUTPUT_LVDS0] = "LVDS0",
+		[RZG2L_DU_OUTPUT_LVDS1] = "LVDS1",
 		[RZG2L_DU_OUTPUT_DPAD0] = "DPAD0"
 	};
 
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h
index 58806c2a8f2b..c6f9dc46ab31 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h
@@ -20,8 +20,12 @@
 struct device;
 struct drm_property;
 
+#define RG2L_DU_FEATURE_SMUX2_DSI_CLK	BIT(0)	/* Per output mux */
+
 enum rzg2l_du_output {
 	RZG2L_DU_OUTPUT_DSI0,
+	RZG2L_DU_OUTPUT_LVDS0,
+	RZG2L_DU_OUTPUT_LVDS1,
 	RZG2L_DU_OUTPUT_DPAD0,
 	RZG2L_DU_OUTPUT_MAX,
 };
@@ -46,6 +50,7 @@ struct rzg2l_du_output_routing {
  * @routes: array of CRTC to output routes, indexed by output (RZG2L_DU_OUTPUT_*)
  */
 struct rzg2l_du_device_info {
+	unsigned int features;
 	unsigned int channels_mask;
 	struct rzg2l_du_output_routing routes[RZG2L_DU_OUTPUT_MAX];
 };
@@ -73,6 +78,12 @@ static inline struct rzg2l_du_device *to_rzg2l_du_device(struct drm_device *dev)
 	return container_of(dev, struct rzg2l_du_device, ddev);
 }
 
+static inline bool rzg2l_du_has(struct rzg2l_du_device *rcdu,
+				unsigned int feature)
+{
+	return rcdu->info->features & feature;
+}
+
 const char *rzg2l_du_output_name(enum rzg2l_du_output output);
 
 #endif /* __RZG2L_DU_DRV_H__ */
-- 
2.43.0

[PATCH 15/22] media: dt-bindings: media: renesas,vsp1: Document RZ/G3E

[Tommaso Merciai]

The VSPD block on the RZ/G3E SoC is identical to the one found on the
RZ/G2L SoC.

No driver changes are required, as `renesas,r9a07g044-vsp2` will be used
as a fallback compatible string on the RZ/G3E SoC.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 Documentation/devicetree/bindings/media/renesas,vsp1.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/media/renesas,vsp1.yaml b/Documentation/devicetree/bindings/media/renesas,vsp1.yaml
index 07a97dd87a5b..62bff3ce3eaa 100644
--- a/Documentation/devicetree/bindings/media/renesas,vsp1.yaml
+++ b/Documentation/devicetree/bindings/media/renesas,vsp1.yaml
@@ -25,6 +25,7 @@ properties:
           - enum:
               - renesas,r9a07g043u-vsp2   # RZ/G2UL
               - renesas,r9a07g054-vsp2    # RZ/V2L
+              - renesas,r9a09g047-vsp2    # RZ/G3E
               - renesas,r9a09g056-vsp2    # RZ/V2N
               - renesas,r9a09g057-vsp2    # RZ/V2H(P)
           - const: renesas,r9a07g044-vsp2 # RZ/G2L fallback
-- 
2.43.0

Re: [PATCH 15/22] media: dt-bindings: media: renesas,vsp1: Document RZ/G3E

[Krzysztof Kozlowski]

On Wed, Nov 26, 2025 at 03:07:27PM +0100, Tommaso Merciai wrote:
> The VSPD block on the RZ/G3E SoC is identical to the one found on the
> RZ/G2L SoC.
> 
> No driver changes are required, as `renesas,r9a07g044-vsp2` will be used
> as a fallback compatible string on the RZ/G3E SoC.

Last statement is not necessary. The first one stating they are
identical implies this. Also, this is mostly about bindings not drivers.
If my other driver in other OS needs custom code for this compatible,
does it invalidate the commit msg?

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

[PATCH 16/22] media: dt-bindings: media: renesas,fcp: Document RZ/G3E SoC

[Tommaso Merciai]

The FCPVD block on the RZ/G3E SoC is identical to the one found on the
RZ/G2L SoC.

No driver changes are required, as `renesas,fcpv` will be used as a
fallback compatible string on the RZ/G3E SoC.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 Documentation/devicetree/bindings/media/renesas,fcp.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/renesas,fcp.yaml b/Documentation/devicetree/bindings/media/renesas,fcp.yaml
index cf92dfe69637..68c460c4a038 100644
--- a/Documentation/devicetree/bindings/media/renesas,fcp.yaml
+++ b/Documentation/devicetree/bindings/media/renesas,fcp.yaml
@@ -30,6 +30,7 @@ properties:
               - renesas,r9a07g043u-fcpvd # RZ/G2UL
               - renesas,r9a07g044-fcpvd # RZ/G2{L,LC}
               - renesas,r9a07g054-fcpvd # RZ/V2L
+              - renesas,r9a09g047-fcpvd # RZ/G3E
               - renesas,r9a09g056-fcpvd # RZ/V2N
               - renesas,r9a09g057-fcpvd # RZ/V2H(P)
           - const: renesas,fcpv         # Generic FCP for VSP fallback
@@ -77,6 +78,7 @@ allOf:
               - renesas,r9a07g043u-fcpvd
               - renesas,r9a07g044-fcpvd
               - renesas,r9a07g054-fcpvd
+              - renesas,r9a09g047-fcpvd
               - renesas,r9a09g057-fcpvd
     then:
       properties:
-- 
2.43.0

Re: [PATCH 16/22] media: dt-bindings: media: renesas,fcp: Document RZ/G3E SoC

[Krzysztof Kozlowski]

On Wed, Nov 26, 2025 at 03:07:28PM +0100, Tommaso Merciai wrote:
> The FCPVD block on the RZ/G3E SoC is identical to the one found on the
> RZ/G2L SoC.
> 
> No driver changes are required, as `renesas,fcpv` will be used as a
> fallback compatible string on the RZ/G3E SoC.
> 
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
> ---
>  Documentation/devicetree/bindings/media/renesas,fcp.yaml | 2 ++
>  1 file changed, 2 insertions(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

[PATCH 17/22] arm64: dts: renesas: r9a09g047: Add fcpvd0 node

[Tommaso Merciai]

Add fcpvd0 node to RZ/G3E SoC DTSI.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
index 7a469de3bb62..9db3428fe810 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
@@ -1181,6 +1181,18 @@ csi2cru: endpoint@0 {
 				};
 			};
 		};
+
+		fcpvd0: fcp@16470000 {
+			compatible = "renesas,r9a09g047-fcpvd",
+				     "renesas,fcpv";
+			reg = <0 0x16470000 0 0x10000>;
+			clocks = <&cpg CPG_MOD 0xed>,
+				 <&cpg CPG_MOD 0xee>,
+				 <&cpg CPG_MOD 0xef>;
+			clock-names = "aclk", "pclk", "vclk";
+			resets = <&cpg 0xdc>;
+			power-domains = <&cpg>;
+		};
 	};
 
 	stmmac_axi_setup: stmmac-axi-config {
-- 
2.43.0

[PATCH 18/22] arm64: dts: renesas: r9a09g047: Add vspd0 node

[Tommaso Merciai]

Add vspd0 node to RZ/G3E SoC DTSI.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
index 9db3428fe810..876d8e3903a2 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
@@ -1193,6 +1193,20 @@ fcpvd0: fcp@16470000 {
 			resets = <&cpg 0xdc>;
 			power-domains = <&cpg>;
 		};
+
+		vspd0: vsp@16480000 {
+			compatible = "renesas,r9a09g047-vsp2",
+				     "renesas,r9a07g044-vsp2";
+			reg = <0 0x16480000 0 0x10000>;
+			interrupts = <GIC_SPI 881 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 0xed>,
+				 <&cpg CPG_MOD 0xee>,
+				 <&cpg CPG_MOD 0xef>;
+			clock-names = "aclk", "pclk", "vclk";
+			resets = <&cpg 0xdc>;
+			power-domains = <&cpg>;
+			renesas,fcp = <&fcpvd0>;
+		};
 	};
 
 	stmmac_axi_setup: stmmac-axi-config {
-- 
2.43.0

[PATCH 19/22] arm64: dts: renesas: r9a09g047: Add fcpvd1 node

[Tommaso Merciai]

Add fcpvd1 node to RZ/G3E SoC DTSI.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
index 876d8e3903a2..fe96b412cafd 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
@@ -1207,6 +1207,18 @@ vspd0: vsp@16480000 {
 			power-domains = <&cpg>;
 			renesas,fcp = <&fcpvd0>;
 		};
+
+		fcpvd1: fcp@164a0000 {
+			compatible = "renesas,r9a09g047-fcpvd",
+				     "renesas,fcpv";
+			reg = <0 0x164a0000 0 0x10000>;
+			clocks = <&cpg CPG_MOD 0x1a8>,
+				 <&cpg CPG_MOD 0x1a9>,
+				 <&cpg CPG_MOD 0x1aa>;
+			clock-names = "aclk", "pclk", "vclk";
+			resets = <&cpg 0x11e>;
+			power-domains = <&cpg>;
+		};
 	};
 
 	stmmac_axi_setup: stmmac-axi-config {
-- 
2.43.0

[PATCH 20/22] arm64: dts: renesas: r9a09g047: Add vspd1 node

[Tommaso Merciai]

Add vspd1 node to RZ/G3E SoC DTSI.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
index fe96b412cafd..11f7a3c98e74 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
@@ -1219,6 +1219,20 @@ fcpvd1: fcp@164a0000 {
 			resets = <&cpg 0x11e>;
 			power-domains = <&cpg>;
 		};
+
+		vspd1: vsp@164b0000 {
+			compatible = "renesas,r9a09g047-vsp2",
+				     "renesas,r9a07g044-vsp2";
+			reg = <0 0x164b0000 0 0x10000>;
+			interrupts = <GIC_SPI 921 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 0x1a8>,
+				 <&cpg CPG_MOD 0x1a9>,
+				 <&cpg CPG_MOD 0x1aa>;
+			clock-names = "aclk", "pclk", "vclk";
+			resets = <&cpg 0x11e>;
+			power-domains = <&cpg>;
+			renesas,fcp = <&fcpvd1>;
+		};
 	};
 
 	stmmac_axi_setup: stmmac-axi-config {
-- 
2.43.0

[PATCH 21/22] arm64: dts: renesas: r9a09g047: Add DU{0,1} and DSI nodes

[Tommaso Merciai]

Add DU0, DU1, DSI nodes to RZ/RZG3E SoC DTSI.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 121 +++++++++++++++++++++
 1 file changed, 121 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
index 11f7a3c98e74..6b6de8d61a30 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
@@ -1182,6 +1182,127 @@ csi2cru: endpoint@0 {
 			};
 		};
 
+		dsi: dsi@16430000 {
+			compatible = "renesas,r9a09g047-mipi-dsi";
+			reg = <0 0x16430000 0 0x20000>;
+			interrupts = <GIC_SPI 874 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 875 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 876 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 877 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 878 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 879 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 880 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "seq0", "seq1", "vin1", "rcv",
+					  "ferr", "ppi", "debug";
+			clocks = <&cpg CPG_MOD 0xec>, <&cpg CPG_MOD 0xe9>,
+				 <&cpg CPG_MOD 0xe8>, <&cpg CPG_MOD 0xea>,
+				 <&cpg CPG_MOD 0x190>, <&cpg CPG_MOD 0xeb>;
+			clock-names = "pllrefclk", "aclk", "pclk", "vclk1",
+				      "vclk2", "lpclk";
+			resets = <&cpg 0xd8>, <&cpg 0xd7>;
+			reset-names = "arst", "prst";
+			power-domains = <&cpg>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					dsi_in0: endpoint {
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					dsi_in1: endpoint {
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+					dsi_out: endpoint {
+					};
+				};
+			};
+		};
+
+		du0: du0@16460000 {
+			compatible = "renesas,r9a09g047-du0";
+			reg = <0 0x16460000 0 0x10000>;
+			interrupts = <GIC_SPI 882 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 0xed>,
+				 <&cpg CPG_MOD 0xee>,
+				 <&cpg CPG_MOD 0xef>;
+			clock-names = "aclk", "pclk", "vclk";
+			power-domains = <&cpg>;
+			resets = <&cpg 0xdc>;
+			renesas,vsps = <&vspd0 0>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					du0_out_dsi0: endpoint {
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					du0_out_lvds0: endpoint {
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+					du0_out_lvds1: endpoint {
+					};
+				};
+			};
+		};
+
+		du1: du1@16490000 {
+			compatible = "renesas,r9a09g047-du1";
+			reg = <0 0x16490000 0 0x10000>;
+			interrupts = <GIC_SPI 922 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 0x1a8>,
+				 <&cpg CPG_MOD 0x1a9>,
+				 <&cpg CPG_MOD 0x1aa>;
+			clock-names = "aclk", "pclk", "vclk";
+			power-domains = <&cpg>;
+			resets = <&cpg 0x11e>;
+			renesas,vsps = <&vspd1 0>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					du1_out_dsi0: endpoint {
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					du1_out_lvds0: endpoint {
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+					du1_out_rgb0: endpoint {
+					};
+				};
+
+			};
+		};
+
 		fcpvd0: fcp@16470000 {
 			compatible = "renesas,r9a09g047-fcpvd",
 				     "renesas,fcpv";
-- 
2.43.0

[PATCH 22/22] arm64: dts: renesas: r9a09g047e57-smarc: Enable DU1 and DSI support

[Tommaso Merciai]

Enable DU1, DSI and ADV7535 on RZ/G3E SMARC EVK including the newly
added r9a09g047e57-smarc-du1-adv7535.dtsi

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 .../r9a09g047e57-smarc-du1-adv7535.dtsi       | 124 ++++++++++++++++++
 .../boot/dts/renesas/r9a09g047e57-smarc.dts   |   1 +
 2 files changed, 125 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi
new file mode 100644
index 000000000000..4444c9634d3e
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the R9A09G047E57 SMARC SoM board with
+ * ADV7535 MIPI DSI to HDMI transmitter connected to DU1 enabled.
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ */
+
+/ {
+	osc1: cec-clock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <12000000>;
+	};
+
+	reg_1p8v_adv: regulator-1p8v-adv {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_3p3v_adv: regulator-3p3v-adv {
+		compatible = "regulator-fixed";
+
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	dsi-to-hdmi-out {
+		compatible = "hdmi-connector";
+		type = "d";
+
+		port {
+			dsi_to_hdmi_out: endpoint {
+				remote-endpoint = <&adv7535_out>;
+			};
+		};
+	};
+};
+
+&dsi {
+	status = "okay";
+
+	ports {
+		port@1 {
+			dsi_in1: endpoint {
+				remote-endpoint = <&du1_out_dsi0>;
+			};
+		};
+
+		port@2 {
+			dsi_out: endpoint {
+				remote-endpoint = <&adv7535_in>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+	};
+};
+
+&du1 {
+	status = "okay";
+
+	ports {
+		port@0 {
+			du1_out_dsi0: endpoint {
+				remote-endpoint = <&dsi_in1>;
+			};
+		};
+	};
+};
+
+&i2c7 {
+	pinctrl-0 = <&i2c7_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+	clock-frequency = <400000>;
+
+	adv7535: hdmi1@3d {
+		compatible = "adi,adv7535";
+		reg = <0x3d>, <0x4d>, <0x2d>, <0x5d>;
+		reg-names = "main", "edid", "cec", "packet";
+		clocks = <&osc1>;
+		clock-names = "cec";
+		avdd-supply = <&reg_1p8v_adv>;
+		dvdd-supply = <&reg_1p8v_adv>;
+		pvdd-supply = <&reg_1p8v_adv>;
+		a2vdd-supply = <&reg_1p8v_adv>;
+		v3p3-supply = <&reg_3p3v_adv>;
+		v1p2-supply = <&reg_1p8v_adv>;
+		adi,dsi-lanes = <4>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				adv7535_in: endpoint {
+					remote-endpoint = <&dsi_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				adv7535_out: endpoint {
+					remote-endpoint = <&dsi_to_hdmi_out>;
+				};
+			};
+		};
+	};
+};
+
+&pinctrl {
+	i2c7_pins: i2c7 {
+		pinmux = <RZG3E_PORT_PINMUX(A, 4, 4)>, /* SCL */
+			 <RZG3E_PORT_PINMUX(A, 5, 4)>; /* SDA */
+	};
+};
diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
index 08e814c03fa8..74cf36586636 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
@@ -28,6 +28,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/pinctrl/renesas,r9a09g047-pinctrl.h>
 #include "r9a09g047e57.dtsi"
+#include "r9a09g047e57-smarc-du1-adv7535.dtsi"
 #include "rzg3e-smarc-som.dtsi"
 #include "renesas-smarc2.dtsi"
 
-- 
2.43.0

RE: [PATCH 00/22] Add support for DU and DSI on the Renesas RZ/G3E SoC

[Biju Das]

Hi Tommaso Merciai,

Thanks for the patch.

> -----Original Message-----
> From: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
> Sent: 26 November 2025 14:07
> Subject: [PATCH 00/22] Add support for DU and DSI on the Renesas RZ/G3E SoC
> 
> Hi All,
> 
> This patch series adds support for the 2 Display Units (DUs) and MIPI DSI interface found on the
> Renesas RZ/G3E SoC.
> 
> RZ/G3E SoC has 2 LCD controller (LCDC0 and LCDC1), both are composed of Frame Compression Processor
> (FCPVD), Video Signal Processor (VSPD), and Display Unit (DU).
> 
> LCDC0 is connected to LVDS (single or dual channel) and DSI.
> LCDC1 is connected to LVDS (single ch), DSI, and GPIO (Parallel I/F).
> 
> This apply on top of [1].

FYI, for the same monitor, it is rejecting 7 modes compared to RZ/V2L.
Looks like we need to improve the algorithm for PLL DSI clocks.

Cheers,
Biju

> 
> Thanks & Regards,
> Tommaso
> 
> [1] https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=1012044
> 
> Tommaso Merciai (22):
>   clk: renesas: rzv2h: Add PLLDSI clk mux support
>   clk: renesas: r9a09g047: Add CLK_PLLETH_LPCLK support
>   clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1} clocks
>   clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1}_DIV7 clocks
>   clk: renesas: r9a09g047: Add CLK_PLLDSI{0,1}_CSDIV clocks
>   clk: renesas: r9a09g047: Add support for SMUX2_DSI{0,1}_CLK
>   clk: renesas: r9a09g047: Add support for DSI clocks and resets
>   clk: renesas: r9a09g047: Add support for LCDC{0,1} clocks and resets
>   dt-bindings: display: bridge: renesas,dsi: Add support for RZ/G3E SoC
>   dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC
>   drm: renesas: rz-du: mipi_dsi: Add out_port to OF data
>   drm: renesas: rz-du: mipi_dsi: Add RZ_MIPI_DSI_FEATURE_GPO0R feature
>   drm: renesas: rz-du: mipi_dsi: Add support for RZ/G3E
>   drm: renesas: rz-du: Add RZ/G3E support
>   media: dt-bindings: media: renesas,vsp1: Document RZ/G3E
>   media: dt-bindings: media: renesas,fcp: Document RZ/G3E SoC
>   arm64: dts: renesas: r9a09g047: Add fcpvd0 node
>   arm64: dts: renesas: r9a09g047: Add vspd0 node
>   arm64: dts: renesas: r9a09g047: Add fcpvd1 node
>   arm64: dts: renesas: r9a09g047: Add vspd1 node
>   arm64: dts: renesas: r9a09g047: Add DU{0,1} and DSI nodes
>   arm64: dts: renesas: r9a09g047e57-smarc: Enable DU1 and DSI support
> 
>  .../bindings/display/bridge/renesas,dsi.yaml  | 120 ++++++++++--
>  .../bindings/display/renesas,rzg2l-du.yaml    |  42 +++++
>  .../bindings/media/renesas,fcp.yaml           |   2 +
>  .../bindings/media/renesas,vsp1.yaml          |   1 +
>  arch/arm64/boot/dts/renesas/r9a09g047.dtsi    | 173 ++++++++++++++++++
>  .../r9a09g047e57-smarc-du1-adv7535.dtsi       | 124 +++++++++++++
>  .../boot/dts/renesas/r9a09g047e57-smarc.dts   |   1 +
>  drivers/clk/renesas/r9a09g047-cpg.c           |  84 +++++++++
>  drivers/clk/renesas/rzv2h-cpg.c               | 131 +++++++++++++
>  drivers/clk/renesas/rzv2h-cpg.h               |  12 ++
>  drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c |  51 ++++++  drivers/gpu/drm/renesas/rz-
> du/rzg2l_du_drv.c  |  42 +++++  drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h  |  11 ++
>  .../gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c    | 109 ++++++++++-
>  .../drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h   |   3 +
>  include/linux/clk/renesas.h                   |  20 ++
>  16 files changed, 898 insertions(+), 28 deletions(-)  create mode 100644
> arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi
> 
> --
> 2.43.0