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Message-Id: <20190522224631.25164-1-justin.swartz@risingedge.co.za>
Date: Wed, 22 May 2019 22:46:29 +0000
From: Justin Swartz <justin.swartz@...ingedge.co.za>
To: Sandy Huang <hjc@...k-chips.com>,
Heiko Stübner <heiko@...ech.de>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>
Cc: Justin Swartz <justin.swartz@...ingedge.co.za>,
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
Subject: [PATCH] drm/rockchip: dw_hdmi: add basic rk3228 support
Like the RK3328, RK322x SoCs offer a Synopsis DesignWare HDMI transmitter
and an Innosilicon HDMI PHY.
Add a new dw_hdmi_plat_data struct, rk3228_hdmi_drv_data.
Assign a set of mostly generic rk3228_hdmi_phy_ops functions.
Add dw_hdmi_rk3228_setup_hpd() to enable the HDMI HPD and DDC lines.
Signed-off-by: Justin Swartz <justin.swartz@...ingedge.co.za>
---
.../bindings/display/rockchip/dw_hdmi-rockchip.txt | 1 +
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 53 ++++++++++++++++++++++
2 files changed, 54 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
index 39143424a..703503103 100644
--- a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
@@ -12,6 +12,7 @@ following device-specific properties.
Required properties:
- compatible: should be one of the following:
+ "rockchip,rk3228-dw-hdmi"
"rockchip,rk3288-dw-hdmi"
"rockchip,rk3328-dw-hdmi"
"rockchip,rk3399-dw-hdmi"
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 4cdc9f86c..182a852af 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -23,6 +23,14 @@
#include "rockchip_drm_drv.h"
#include "rockchip_drm_vop.h"
+#define RK3228_GRF_SOC_CON2 0x0408
+#define RK3228_HDMI_SDAIN_MSK BIT(14)
+#define RK3228_HDMI_SCLIN_MSK BIT(13)
+#define RK3228_GRF_SOC_CON6 0x0418
+#define RK3228_HDMI_HPD_VSEL BIT(6)
+#define RK3228_HDMI_SDA_VSEL BIT(5)
+#define RK3228_HDMI_SCL_VSEL BIT(4)
+
#define RK3288_GRF_SOC_CON6 0x025C
#define RK3288_HDMI_LCDC_SEL BIT(4)
#define RK3328_GRF_SOC_CON2 0x0408
@@ -325,6 +333,25 @@ static void dw_hdmi_rockchip_genphy_disable(struct dw_hdmi *dw_hdmi, void *data)
phy_power_off(hdmi->phy);
}
+static void dw_hdmi_rk3228_setup_hpd(struct dw_hdmi *dw_hdmi, void *data)
+{
+ struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data;
+
+ dw_hdmi_phy_setup_hpd(dw_hdmi, data);
+
+ regmap_write(hdmi->regmap,
+ RK3228_GRF_SOC_CON6,
+ HIWORD_UPDATE(RK3228_HDMI_HPD_VSEL | RK3228_HDMI_SDA_VSEL |
+ RK3228_HDMI_SCL_VSEL,
+ RK3228_HDMI_HPD_VSEL | RK3228_HDMI_SDA_VSEL |
+ RK3228_HDMI_SCL_VSEL));
+
+ regmap_write(hdmi->regmap,
+ RK3228_GRF_SOC_CON2,
+ HIWORD_UPDATE(RK3228_HDMI_SDAIN_MSK | RK3228_HDMI_SCLIN_MSK,
+ RK3228_HDMI_SDAIN_MSK | RK3228_HDMI_SCLIN_MSK));
+}
+
static enum drm_connector_status
dw_hdmi_rk3328_read_hpd(struct dw_hdmi *dw_hdmi, void *data)
{
@@ -370,6 +397,29 @@ static void dw_hdmi_rk3328_setup_hpd(struct dw_hdmi *dw_hdmi, void *data)
RK3328_HDMI_HPD_IOE));
}
+static const struct dw_hdmi_phy_ops rk3228_hdmi_phy_ops = {
+ .init = dw_hdmi_rockchip_genphy_init,
+ .disable = dw_hdmi_rockchip_genphy_disable,
+ .read_hpd = dw_hdmi_phy_read_hpd,
+ .update_hpd = dw_hdmi_phy_update_hpd,
+ .setup_hpd = dw_hdmi_rk3228_setup_hpd,
+};
+
+static struct rockchip_hdmi_chip_data rk3228_chip_data = {
+ .lcdsel_grf_reg = -1,
+};
+
+static const struct dw_hdmi_plat_data rk3228_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 = &rk3228_chip_data,
+ .phy_ops = &rk3228_hdmi_phy_ops,
+ .phy_name = "inno_dw_hdmi_phy2",
+ .phy_force_vendor = true,
+};
+
static struct rockchip_hdmi_chip_data rk3288_chip_data = {
.lcdsel_grf_reg = RK3288_GRF_SOC_CON6,
.lcdsel_big = HIWORD_UPDATE(0, RK3288_HDMI_LCDC_SEL),
@@ -422,6 +472,9 @@ static const struct dw_hdmi_plat_data rk3399_hdmi_drv_data = {
};
static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
+ { .compatible = "rockchip,rk3228-dw-hdmi",
+ .data = &rk3228_hdmi_drv_data
+ },
{ .compatible = "rockchip,rk3288-dw-hdmi",
.data = &rk3288_hdmi_drv_data
},
--
2.11.0
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