video: rockchip: Add support for RK3399 to dw-mipi-dsi bridge
This just needs some extra clocks enabled, and different registers
configured. Copied from Linux, just like the original submitter
of this driver did for rk3568.
Tested on Pinephone Pro.
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
index 117c3db..0852b53 100644
--- a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
+++ b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
@@ -134,6 +134,32 @@
#define HS_RX_CONTROL_OF_LANE_2 0x84
#define HS_RX_CONTROL_OF_LANE_3 0x94
+#define DW_MIPI_NEEDS_PHY_CFG_CLK BIT(0)
+#define DW_MIPI_NEEDS_GRF_CLK BIT(1)
+
+#define RK3399_GRF_SOC_CON20 0x6250
+#define RK3399_DSI0_LCDC_SEL BIT(0)
+#define RK3399_DSI1_LCDC_SEL BIT(4)
+
+#define RK3399_GRF_SOC_CON22 0x6258
+#define RK3399_DSI0_TURNREQUEST (0xf << 12)
+#define RK3399_DSI0_TURNDISABLE (0xf << 8)
+#define RK3399_DSI0_FORCETXSTOPMODE (0xf << 4)
+#define RK3399_DSI0_FORCERXMODE (0xf << 0)
+
+#define RK3399_GRF_SOC_CON23 0x625c
+#define RK3399_DSI1_TURNDISABLE (0xf << 12)
+#define RK3399_DSI1_FORCETXSTOPMODE (0xf << 8)
+#define RK3399_DSI1_FORCERXMODE (0xf << 4)
+#define RK3399_DSI1_ENABLE (0xf << 0)
+
+#define RK3399_GRF_SOC_CON24 0x6260
+#define RK3399_TXRX_MASTERSLAVEZ BIT(7)
+#define RK3399_TXRX_ENABLECLK BIT(6)
+#define RK3399_TXRX_BASEDIR BIT(5)
+#define RK3399_TXRX_SRC_SEL_ISP0 BIT(4)
+#define RK3399_TXRX_TURNREQUEST GENMASK(3, 0)
+
#define RK3568_GRF_VO_CON2 0x0368
#define RK3568_DSI0_SKEWCALHS (0x1f << 11)
#define RK3568_DSI0_FORCETXSTOPMODE (0xf << 4)
@@ -209,6 +235,8 @@
struct clk *pclk;
struct clk *ref;
+ struct clk *grf_clk;
+ struct clk *phy_cfg_clk;
struct reset_ctl *rst;
unsigned int lane_mbps; /* per lane */
u16 input_div;
@@ -842,6 +870,28 @@
dev_err(dev, "pll reference clock get error %d\n", ret);
return ret;
}
+ }
+
+ if (cdata->flags & DW_MIPI_NEEDS_PHY_CFG_CLK) {
+ priv->phy_cfg_clk = devm_clk_get(dev, "phy_cfg");
+ if (IS_ERR(priv->phy_cfg_clk)) {
+ ret = PTR_ERR(priv->phy_cfg_clk);
+ dev_err(dev, "phy_cfg_clk clock get error %d\n", ret);
+ return ret;
+ }
+
+ clk_enable(priv->phy_cfg_clk);
+ }
+
+ if (cdata->flags & DW_MIPI_NEEDS_GRF_CLK) {
+ priv->grf_clk = devm_clk_get(dev, "grf");
+ if (IS_ERR(priv->grf_clk)) {
+ ret = PTR_ERR(priv->grf_clk);
+ dev_err(dev, "grf_clk clock get error %d\n", ret);
+ return ret;
+ }
+
+ clk_enable(priv->grf_clk);
}
priv->rst = devm_reset_control_get_by_index(device->dev, 0);
@@ -864,6 +914,52 @@
.set_backlight = dw_mipi_dsi_rockchip_set_bl,
};
+static const struct rockchip_dw_dsi_chip_data rk3399_chip_data[] = {
+ {
+ .reg = 0xff960000,
+ .lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
+ .lcdsel_big = HIWORD_UPDATE(0, RK3399_DSI0_LCDC_SEL),
+ .lcdsel_lit = HIWORD_UPDATE(RK3399_DSI0_LCDC_SEL,
+ RK3399_DSI0_LCDC_SEL),
+
+ .lanecfg1_grf_reg = RK3399_GRF_SOC_CON22,
+ .lanecfg1 = HIWORD_UPDATE(0, RK3399_DSI0_TURNREQUEST |
+ RK3399_DSI0_TURNDISABLE |
+ RK3399_DSI0_FORCETXSTOPMODE |
+ RK3399_DSI0_FORCERXMODE),
+
+ .flags = DW_MIPI_NEEDS_PHY_CFG_CLK | DW_MIPI_NEEDS_GRF_CLK,
+ .max_data_lanes = 4,
+ },
+ {
+ .reg = 0xff968000,
+ .lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
+ .lcdsel_big = HIWORD_UPDATE(0, RK3399_DSI1_LCDC_SEL),
+ .lcdsel_lit = HIWORD_UPDATE(RK3399_DSI1_LCDC_SEL,
+ RK3399_DSI1_LCDC_SEL),
+
+ .lanecfg1_grf_reg = RK3399_GRF_SOC_CON23,
+ .lanecfg1 = HIWORD_UPDATE(0, RK3399_DSI1_TURNDISABLE |
+ RK3399_DSI1_FORCETXSTOPMODE |
+ RK3399_DSI1_FORCERXMODE |
+ RK3399_DSI1_ENABLE),
+
+ .lanecfg2_grf_reg = RK3399_GRF_SOC_CON24,
+ .lanecfg2 = HIWORD_UPDATE(RK3399_TXRX_MASTERSLAVEZ |
+ RK3399_TXRX_ENABLECLK,
+ RK3399_TXRX_MASTERSLAVEZ |
+ RK3399_TXRX_ENABLECLK |
+ RK3399_TXRX_BASEDIR),
+
+ .enable_grf_reg = RK3399_GRF_SOC_CON23,
+ .enable = HIWORD_UPDATE(RK3399_DSI1_ENABLE, RK3399_DSI1_ENABLE),
+
+ .flags = DW_MIPI_NEEDS_PHY_CFG_CLK | DW_MIPI_NEEDS_GRF_CLK,
+ .max_data_lanes = 4,
+ },
+ { /* sentinel */ }
+};
+
static const struct rockchip_dw_dsi_chip_data rk3568_chip_data[] = {
{
.reg = 0xfe060000,
@@ -887,6 +983,9 @@
};
static const struct udevice_id dw_mipi_dsi_rockchip_dt_ids[] = {
+ { .compatible = "rockchip,rk3399-mipi-dsi",
+ .data = (long)&rk3399_chip_data,
+ },
{ .compatible = "rockchip,rk3568-mipi-dsi",
.data = (long)&rk3568_chip_data,
},