linux-kernel - [PATCH 2/9] drm/rockchip: hdmi: add RK3368 controller variant

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Message-ID: <20251020082508.3636511-3-heiko@sntech.de>
Date: Mon, 20 Oct 2025 10:25:01 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: heiko@...ech.de
Cc: maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	quentin.schulz@...rry.de,
	andy.yan@...k-chips.com,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	cn.liweihao@...il.com,
	Heiko Stuebner <heiko.stuebner@...rry.de>
Subject: [PATCH 2/9] drm/rockchip: hdmi: add RK3368 controller variant

From: Heiko Stuebner <heiko.stuebner@...rry.de>

The RK3368 has only one VOP, so there is no source selection happening
and the controller uses an internal phy for the HDMI output.

Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
---
 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 7b613997bb50..95ff3fce97a3 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -467,6 +467,19 @@ static const struct dw_hdmi_plat_data rk3328_hdmi_drv_data = {
 	.use_drm_infoframe = true,
 };
 
+static struct rockchip_hdmi_chip_data rk3368_chip_data = {
+	.lcdsel_grf_reg = -1,
+};
+
+static const struct dw_hdmi_plat_data rk3368_hdmi_drv_data = {
+	.mode_valid = dw_hdmi_rockchip_mode_valid,
+	.mpll_cfg   = rockchip_mpll_cfg,
+	.cur_ctr    = rockchip_cur_ctr,
+	.phy_config = rockchip_phy_config,
+	.phy_data = &rk3368_chip_data,
+	.use_drm_infoframe = true,
+};
+
 static struct rockchip_hdmi_chip_data rk3399_chip_data = {
 	.lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
 	.lcdsel_big = FIELD_PREP_WM16_CONST(RK3399_HDMI_LCDC_SEL, 0),
@@ -507,6 +520,9 @@ static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
 	{ .compatible = "rockchip,rk3328-dw-hdmi",
 	  .data = &rk3328_hdmi_drv_data
 	},
+	{ .compatible = "rockchip,rk3368-dw-hdmi",
+	 .data = &rk3368_hdmi_drv_data
+	},
 	{ .compatible = "rockchip,rk3399-dw-hdmi",
 	  .data = &rk3399_hdmi_drv_data
 	},
-- 
2.47.2