From: Ondrej Jirman megi@xff.cz

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 --- drivers/video/rockchip/dw_mipi_dsi_rockchip.c | 99 +++++++++++++++++++ 1 file changed, 99 insertions(+)

diff --git a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c index 1bb1c7c67d07..9ec3a48bf2a5 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 dw_rockchip_dsi_priv {

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; @@ -844,6 +872,28 @@ static int dw_mipi_dsi_rockchip_probe(struct udevice *dev) } }

+ 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); if (IS_ERR(priv->rst)) { ret = PTR_ERR(priv->rst); @@ -864,6 +914,52 @@ struct video_bridge_ops dw_mipi_dsi_rockchip_ops = { .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 rockchip_dw_dsi_chip_data rk3568_chip_data[] = { };

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, },