* [PATCH 2/3] video: Rockchip: add MIPI-DSI support
2025-12-01 8:59 [PATCH 1/3] video: dw_mipi_dsi: drop unused and misleading dw_mipi_dsi_crtc_node() Ahmad Fatoum
@ 2025-12-01 8:59 ` Ahmad Fatoum
2025-12-01 8:59 ` [PATCH 3/3] video: dw_mipi_dsi: activate pattern generator during enable as a hack Ahmad Fatoum
2025-12-01 10:44 ` [PATCH 1/3] video: dw_mipi_dsi: drop unused and misleading dw_mipi_dsi_crtc_node() Sascha Hauer
2 siblings, 0 replies; 4+ messages in thread
From: Ahmad Fatoum @ 2025-12-01 8:59 UTC (permalink / raw)
To: barebox; +Cc: Ahmad Fatoum
This has been tested against the VOP2 on the RK3566 with a separate
workaround on top following in the next commit.
Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
drivers/video/rockchip/Kconfig | 8 +
drivers/video/rockchip/Makefile | 1 +
drivers/video/rockchip/dw-mipi-dsi-rockchip.c | 1381 +++++++++++++++++
drivers/video/rockchip/rockchip_drm_vop2.c | 3 +-
4 files changed, 1392 insertions(+), 1 deletion(-)
create mode 100644 drivers/video/rockchip/dw-mipi-dsi-rockchip.c
diff --git a/drivers/video/rockchip/Kconfig b/drivers/video/rockchip/Kconfig
index b91c6fc398e0..3453be7a7dfa 100644
--- a/drivers/video/rockchip/Kconfig
+++ b/drivers/video/rockchip/Kconfig
@@ -15,4 +15,12 @@ config DRIVER_VIDEO_ROCKCHIP_HDMI
select DRIVER_VIDEO_EDID
select DRIVER_VIDEO_DW_HDMI
+config DRIVER_VIDEO_ROCKCHIP_MIPI_DSI
+ bool "Rockchip MIPI-DSI driver"
+ select VIDEO_VPL
+ select OFTREE
+ select DRIVER_VIDEO_DW_MIPI_DSI
+ select GENERIC_PHY
+ select GENERIC_PHY_MIPI_DPHY
+
endif
diff --git a/drivers/video/rockchip/Makefile b/drivers/video/rockchip/Makefile
index 278ce1302d92..b7b6267c1d8f 100644
--- a/drivers/video/rockchip/Makefile
+++ b/drivers/video/rockchip/Makefile
@@ -1,2 +1,3 @@
obj-$(CONFIG_DRIVER_VIDEO_ROCKCHIP_VOP2) += rockchip_drm_vop2.o rockchip_vop2_reg.o
obj-$(CONFIG_DRIVER_VIDEO_ROCKCHIP_HDMI) += dw_hdmi-rockchip.o
+obj-$(CONFIG_DRIVER_VIDEO_ROCKCHIP_MIPI_DSI) += dw-mipi-dsi-rockchip.o
diff --git a/drivers/video/rockchip/dw-mipi-dsi-rockchip.c b/drivers/video/rockchip/dw-mipi-dsi-rockchip.c
new file mode 100644
index 000000000000..f065ebcefa00
--- /dev/null
+++ b/drivers/video/rockchip/dw-mipi-dsi-rockchip.c
@@ -0,0 +1,1381 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) Rockchip Electronics Co., Ltd.
+ * Author:
+ * Chris Zhong <zyw@rock-chips.com>
+ * Nickey Yang <nickey.yang@rock-chips.com>
+ */
+
+#include <linux/array_size.h>
+#include <linux/clk.h>
+#include <linux/iopoll.h>
+#include <linux/math.h>
+#include <mfd/syscon.h>
+#include <linux/module.h>
+#include <of_device.h>
+#include <of.h>
+#include <of_graph.h>
+#include <linux/phy/phy.h>
+#include <linux/device.h>
+#include <linux/regmap.h>
+
+#include <video/mipi_display.h>
+#include <video/mipi_dsi.h>
+#include <video/dw_mipi_dsi.h>
+#include <video/drm/drm_modes.h>
+
+#include "rockchip_drm_drv.h"
+
+#define DRM_DEV_ERROR dev_err
+#define DRM_DEV_DEBUG dev_dbg
+
+#define DSI_PHY_RSTZ 0xa0
+#define PHY_DISFORCEPLL 0
+#define PHY_ENFORCEPLL BIT(3)
+#define PHY_DISABLECLK 0
+#define PHY_ENABLECLK BIT(2)
+#define PHY_RSTZ 0
+#define PHY_UNRSTZ BIT(1)
+#define PHY_SHUTDOWNZ 0
+#define PHY_UNSHUTDOWNZ BIT(0)
+
+#define DSI_PHY_IF_CFG 0xa4
+#define N_LANES(n) ((((n) - 1) & 0x3) << 0)
+#define PHY_STOP_WAIT_TIME(cycle) (((cycle) & 0xff) << 8)
+
+#define DSI_PHY_STATUS 0xb0
+#define LOCK BIT(0)
+#define STOP_STATE_CLK_LANE BIT(2)
+
+#define DSI_PHY_TST_CTRL0 0xb4
+#define PHY_TESTCLK BIT(1)
+#define PHY_UNTESTCLK 0
+#define PHY_TESTCLR BIT(0)
+#define PHY_UNTESTCLR 0
+
+#define DSI_PHY_TST_CTRL1 0xb8
+#define PHY_TESTEN BIT(16)
+#define PHY_UNTESTEN 0
+#define PHY_TESTDOUT(n) (((n) & 0xff) << 8)
+#define PHY_TESTDIN(n) (((n) & 0xff) << 0)
+
+#define DSI_INT_ST0 0xbc
+#define DSI_INT_ST1 0xc0
+#define DSI_INT_MSK0 0xc4
+#define DSI_INT_MSK1 0xc8
+
+#define PHY_STATUS_TIMEOUT_US 10000
+#define CMD_PKT_STATUS_TIMEOUT_US 20000
+
+#define BYPASS_VCO_RANGE BIT(7)
+#define VCO_RANGE_CON_SEL(val) (((val) & 0x7) << 3)
+#define VCO_IN_CAP_CON_DEFAULT (0x0 << 1)
+#define VCO_IN_CAP_CON_LOW (0x1 << 1)
+#define VCO_IN_CAP_CON_HIGH (0x2 << 1)
+#define REF_BIAS_CUR_SEL BIT(0)
+
+#define CP_CURRENT_3UA 0x1
+#define CP_CURRENT_4_5UA 0x2
+#define CP_CURRENT_7_5UA 0x6
+#define CP_CURRENT_6UA 0x9
+#define CP_CURRENT_12UA 0xb
+#define CP_CURRENT_SEL(val) ((val) & 0xf)
+#define CP_PROGRAM_EN BIT(7)
+
+#define LPF_RESISTORS_15_5KOHM 0x1
+#define LPF_RESISTORS_13KOHM 0x2
+#define LPF_RESISTORS_11_5KOHM 0x4
+#define LPF_RESISTORS_10_5KOHM 0x8
+#define LPF_RESISTORS_8KOHM 0x10
+#define LPF_PROGRAM_EN BIT(6)
+#define LPF_RESISTORS_SEL(val) ((val) & 0x3f)
+
+#define HSFREQRANGE_SEL(val) (((val) & 0x3f) << 1)
+
+#define INPUT_DIVIDER(val) (((val) - 1) & 0x7f)
+#define LOW_PROGRAM_EN 0
+#define HIGH_PROGRAM_EN BIT(7)
+#define LOOP_DIV_LOW_SEL(val) (((val) - 1) & 0x1f)
+#define LOOP_DIV_HIGH_SEL(val) ((((val) - 1) >> 5) & 0xf)
+#define PLL_LOOP_DIV_EN BIT(5)
+#define PLL_INPUT_DIV_EN BIT(4)
+
+#define POWER_CONTROL BIT(6)
+#define INTERNAL_REG_CURRENT BIT(3)
+#define BIAS_BLOCK_ON BIT(2)
+#define BANDGAP_ON BIT(0)
+
+#define TER_RESISTOR_HIGH BIT(7)
+#define TER_RESISTOR_LOW 0
+#define LEVEL_SHIFTERS_ON BIT(6)
+#define TER_CAL_DONE BIT(5)
+#define SETRD_MAX (0x7 << 2)
+#define POWER_MANAGE BIT(1)
+#define TER_RESISTORS_ON BIT(0)
+
+#define BIASEXTR_SEL(val) ((val) & 0x7)
+#define BANDGAP_SEL(val) ((val) & 0x7)
+#define TLP_PROGRAM_EN BIT(7)
+#define THS_PRE_PROGRAM_EN BIT(7)
+#define THS_ZERO_PROGRAM_EN BIT(6)
+
+#define PLL_BIAS_CUR_SEL_CAP_VCO_CONTROL 0x10
+#define PLL_CP_CONTROL_PLL_LOCK_BYPASS 0x11
+#define PLL_LPF_AND_CP_CONTROL 0x12
+#define PLL_INPUT_DIVIDER_RATIO 0x17
+#define PLL_LOOP_DIVIDER_RATIO 0x18
+#define PLL_INPUT_AND_LOOP_DIVIDER_RATIOS_CONTROL 0x19
+#define BANDGAP_AND_BIAS_CONTROL 0x20
+#define TERMINATION_RESISTER_CONTROL 0x21
+#define AFE_BIAS_BANDGAP_ANALOG_PROGRAMMABILITY 0x22
+#define HS_RX_CONTROL_OF_LANE_CLK 0x34
+#define HS_RX_CONTROL_OF_LANE_0 0x44
+#define HS_RX_CONTROL_OF_LANE_1 0x54
+#define HS_TX_CLOCK_LANE_REQUEST_STATE_TIME_CONTROL 0x60
+#define HS_TX_CLOCK_LANE_PREPARE_STATE_TIME_CONTROL 0x61
+#define HS_TX_CLOCK_LANE_HS_ZERO_STATE_TIME_CONTROL 0x62
+#define HS_TX_CLOCK_LANE_TRAIL_STATE_TIME_CONTROL 0x63
+#define HS_TX_CLOCK_LANE_EXIT_STATE_TIME_CONTROL 0x64
+#define HS_TX_CLOCK_LANE_POST_TIME_CONTROL 0x65
+#define HS_TX_DATA_LANE_REQUEST_STATE_TIME_CONTROL 0x70
+#define HS_TX_DATA_LANE_PREPARE_STATE_TIME_CONTROL 0x71
+#define HS_TX_DATA_LANE_HS_ZERO_STATE_TIME_CONTROL 0x72
+#define HS_TX_DATA_LANE_TRAIL_STATE_TIME_CONTROL 0x73
+#define HS_TX_DATA_LANE_EXIT_STATE_TIME_CONTROL 0x74
+#define HS_RX_DATA_LANE_THS_SETTLE_CONTROL 0x75
+#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 PX30_GRF_PD_VO_CON1 0x0438
+#define PX30_DSI_FORCETXSTOPMODE (0xf << 7)
+#define PX30_DSI_FORCERXMODE BIT(6)
+#define PX30_DSI_TURNDISABLE BIT(5)
+#define PX30_DSI_LCDC_SEL BIT(0)
+
+#define RK3128_GRF_LVDS_CON0 0x0150
+#define RK3128_DSI_FORCETXSTOPMODE GENMASK(13, 10)
+#define RK3128_DSI_FORCERXMODE BIT(9)
+#define RK3128_DSI_TURNDISABLE BIT(8)
+
+#define RK3288_GRF_SOC_CON6 0x025c
+#define RK3288_DSI0_LCDC_SEL BIT(6)
+#define RK3288_DSI1_LCDC_SEL BIT(9)
+
+#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)
+#define RK3568_DSI0_TURNDISABLE BIT(2)
+#define RK3568_DSI0_FORCERXMODE BIT(0)
+
+/*
+ * Note these registers do not appear in the datasheet, they are
+ * however present in the BSP driver which is where these values
+ * come from. Name GRF_VO_CON3 is assumed.
+ */
+#define RK3568_GRF_VO_CON3 0x36c
+#define RK3568_DSI1_SKEWCALHS (0x1f << 11)
+#define RK3568_DSI1_FORCETXSTOPMODE (0xf << 4)
+#define RK3568_DSI1_TURNDISABLE BIT(2)
+#define RK3568_DSI1_FORCERXMODE BIT(0)
+
+#define RV1126_GRF_DSIPHY_CON 0x10220
+#define RV1126_DSI_FORCETXSTOPMODE (0xf << 4)
+#define RV1126_DSI_TURNDISABLE BIT(2)
+#define RV1126_DSI_FORCERXMODE BIT(0)
+
+#define HIWORD_UPDATE(val, mask) (val | (mask) << 16)
+
+enum {
+ DW_DSI_USAGE_IDLE,
+ DW_DSI_USAGE_DSI,
+ DW_DSI_USAGE_PHY,
+};
+
+enum {
+ BANDGAP_97_07,
+ BANDGAP_98_05,
+ BANDGAP_99_02,
+ BANDGAP_100_00,
+ BANDGAP_93_17,
+ BANDGAP_94_15,
+ BANDGAP_95_12,
+ BANDGAP_96_10,
+};
+
+enum {
+ BIASEXTR_87_1,
+ BIASEXTR_91_5,
+ BIASEXTR_95_9,
+ BIASEXTR_100,
+ BIASEXTR_105_94,
+ BIASEXTR_111_88,
+ BIASEXTR_118_8,
+ BIASEXTR_127_7,
+};
+
+struct rockchip_dw_dsi_chip_data {
+ u32 reg;
+
+ u32 lcdsel_grf_reg;
+ u32 lcdsel_big;
+ u32 lcdsel_lit;
+
+ u32 enable_grf_reg;
+ u32 enable;
+
+ u32 lanecfg1_grf_reg;
+ u32 lanecfg1;
+ u32 lanecfg2_grf_reg;
+ u32 lanecfg2;
+
+ int (*dphy_rx_init)(struct phy *phy);
+ int (*dphy_rx_power_on)(struct phy *phy);
+ int (*dphy_rx_power_off)(struct phy *phy);
+
+ unsigned int flags;
+ unsigned int max_data_lanes;
+};
+
+struct dw_mipi_dsi_rockchip {
+ struct device *dev;
+ void __iomem *base;
+
+ struct regmap *grf_regmap;
+ struct clk *pclk;
+ struct clk *pllref_clk;
+ struct clk *grf_clk;
+ struct clk *phy_cfg_clk;
+
+ /* optional external dphy */
+ struct phy *phy;
+ union phy_configure_opts phy_opts;
+
+ /* being a phy for other mipi hosts */
+ unsigned int usage_mode;
+ struct phy *dphy;
+ struct phy_configure_opts_mipi_dphy dphy_config;
+
+ unsigned int lane_mbps; /* per lane */
+ u16 input_div;
+ u16 feedback_div;
+ u32 format;
+
+ struct dw_mipi_dsi *dmd;
+ const struct rockchip_dw_dsi_chip_data *cdata;
+ struct dw_mipi_dsi_plat_data pdata;
+
+ bool dsi_bound;
+};
+
+struct dphy_pll_parameter_map {
+ unsigned int max_mbps;
+ u8 hsfreqrange;
+ u8 icpctrl;
+ u8 lpfctrl;
+};
+
+/* The table is based on 27MHz DPHY pll reference clock. */
+static const struct dphy_pll_parameter_map dppa_map[] = {
+ { 89, 0x00, CP_CURRENT_3UA, LPF_RESISTORS_13KOHM },
+ { 99, 0x10, CP_CURRENT_3UA, LPF_RESISTORS_13KOHM },
+ { 109, 0x20, CP_CURRENT_3UA, LPF_RESISTORS_13KOHM },
+ { 129, 0x01, CP_CURRENT_3UA, LPF_RESISTORS_15_5KOHM },
+ { 139, 0x11, CP_CURRENT_3UA, LPF_RESISTORS_15_5KOHM },
+ { 149, 0x21, CP_CURRENT_3UA, LPF_RESISTORS_15_5KOHM },
+ { 169, 0x02, CP_CURRENT_6UA, LPF_RESISTORS_13KOHM },
+ { 179, 0x12, CP_CURRENT_6UA, LPF_RESISTORS_13KOHM },
+ { 199, 0x22, CP_CURRENT_6UA, LPF_RESISTORS_13KOHM },
+ { 219, 0x03, CP_CURRENT_4_5UA, LPF_RESISTORS_13KOHM },
+ { 239, 0x13, CP_CURRENT_4_5UA, LPF_RESISTORS_13KOHM },
+ { 249, 0x23, CP_CURRENT_4_5UA, LPF_RESISTORS_13KOHM },
+ { 269, 0x04, CP_CURRENT_6UA, LPF_RESISTORS_11_5KOHM },
+ { 299, 0x14, CP_CURRENT_6UA, LPF_RESISTORS_11_5KOHM },
+ { 329, 0x05, CP_CURRENT_3UA, LPF_RESISTORS_15_5KOHM },
+ { 359, 0x15, CP_CURRENT_3UA, LPF_RESISTORS_15_5KOHM },
+ { 399, 0x25, CP_CURRENT_3UA, LPF_RESISTORS_15_5KOHM },
+ { 449, 0x06, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 499, 0x16, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 549, 0x07, CP_CURRENT_7_5UA, LPF_RESISTORS_10_5KOHM },
+ { 599, 0x17, CP_CURRENT_7_5UA, LPF_RESISTORS_10_5KOHM },
+ { 649, 0x08, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 699, 0x18, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 749, 0x09, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 799, 0x19, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 849, 0x29, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 899, 0x39, CP_CURRENT_7_5UA, LPF_RESISTORS_11_5KOHM },
+ { 949, 0x0a, CP_CURRENT_12UA, LPF_RESISTORS_8KOHM },
+ { 999, 0x1a, CP_CURRENT_12UA, LPF_RESISTORS_8KOHM },
+ {1049, 0x2a, CP_CURRENT_12UA, LPF_RESISTORS_8KOHM },
+ {1099, 0x3a, CP_CURRENT_12UA, LPF_RESISTORS_8KOHM },
+ {1149, 0x0b, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM },
+ {1199, 0x1b, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM },
+ {1249, 0x2b, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM },
+ {1299, 0x3b, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM },
+ {1349, 0x0c, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM },
+ {1399, 0x1c, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM },
+ {1449, 0x2c, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM },
+ {1500, 0x3c, CP_CURRENT_12UA, LPF_RESISTORS_10_5KOHM }
+};
+
+static int max_mbps_to_parameter(unsigned int max_mbps)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dppa_map); i++)
+ if (dppa_map[i].max_mbps >= max_mbps)
+ return i;
+
+ return -EINVAL;
+}
+
+static inline void dsi_write(struct dw_mipi_dsi_rockchip *dsi, u32 reg, u32 val)
+{
+ writel(val, dsi->base + reg);
+}
+
+static void dw_mipi_dsi_phy_write(struct dw_mipi_dsi_rockchip *dsi,
+ u8 test_code,
+ u8 test_data)
+{
+ /*
+ * With the falling edge on TESTCLK, the TESTDIN[7:0] signal content
+ * is latched internally as the current test code. Test data is
+ * programmed internally by rising edge on TESTCLK.
+ */
+ dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLK | PHY_UNTESTCLR);
+
+ dsi_write(dsi, DSI_PHY_TST_CTRL1, PHY_TESTEN | PHY_TESTDOUT(0) |
+ PHY_TESTDIN(test_code));
+
+ dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLK | PHY_UNTESTCLR);
+
+ dsi_write(dsi, DSI_PHY_TST_CTRL1, PHY_UNTESTEN | PHY_TESTDOUT(0) |
+ PHY_TESTDIN(test_data));
+
+ dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLK | PHY_UNTESTCLR);
+}
+
+/*
+ * ns2bc - Nanoseconds to byte clock cycles
+ */
+static inline unsigned int ns2bc(struct dw_mipi_dsi_rockchip *dsi, int ns)
+{
+ return DIV_ROUND_UP(ns * dsi->lane_mbps / 8, 1000);
+}
+
+/*
+ * ns2ui - Nanoseconds to UI time periods
+ */
+static inline unsigned int ns2ui(struct dw_mipi_dsi_rockchip *dsi, int ns)
+{
+ return DIV_ROUND_UP(ns * dsi->lane_mbps, 1000);
+}
+
+static int dw_mipi_dsi_phy_init(void *priv_data)
+{
+ struct dw_mipi_dsi_rockchip *dsi = priv_data;
+ int ret, i, vco;
+
+ if (dsi->phy)
+ return 0;
+
+ /*
+ * Get vco from frequency(lane_mbps)
+ * vco frequency table
+ * 000 - between 80 and 200 MHz
+ * 001 - between 200 and 300 MHz
+ * 010 - between 300 and 500 MHz
+ * 011 - between 500 and 700 MHz
+ * 100 - between 700 and 900 MHz
+ * 101 - between 900 and 1100 MHz
+ * 110 - between 1100 and 1300 MHz
+ * 111 - between 1300 and 1500 MHz
+ */
+ vco = (dsi->lane_mbps < 200) ? 0 : (dsi->lane_mbps + 100) / 200;
+
+ i = max_mbps_to_parameter(dsi->lane_mbps);
+ if (i < 0) {
+ DRM_DEV_ERROR(dsi->dev,
+ "failed to get parameter for %dmbps clock\n",
+ dsi->lane_mbps);
+ return i;
+ }
+
+ ret = clk_prepare_enable(dsi->phy_cfg_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable phy_cfg_clk\n");
+ return ret;
+ }
+
+ dw_mipi_dsi_phy_write(dsi, PLL_BIAS_CUR_SEL_CAP_VCO_CONTROL,
+ BYPASS_VCO_RANGE |
+ VCO_RANGE_CON_SEL(vco) |
+ VCO_IN_CAP_CON_LOW |
+ REF_BIAS_CUR_SEL);
+
+ dw_mipi_dsi_phy_write(dsi, PLL_CP_CONTROL_PLL_LOCK_BYPASS,
+ CP_CURRENT_SEL(dppa_map[i].icpctrl));
+ dw_mipi_dsi_phy_write(dsi, PLL_LPF_AND_CP_CONTROL,
+ CP_PROGRAM_EN | LPF_PROGRAM_EN |
+ LPF_RESISTORS_SEL(dppa_map[i].lpfctrl));
+
+ dw_mipi_dsi_phy_write(dsi, HS_RX_CONTROL_OF_LANE_0,
+ HSFREQRANGE_SEL(dppa_map[i].hsfreqrange));
+
+ dw_mipi_dsi_phy_write(dsi, PLL_INPUT_DIVIDER_RATIO,
+ INPUT_DIVIDER(dsi->input_div));
+ dw_mipi_dsi_phy_write(dsi, PLL_LOOP_DIVIDER_RATIO,
+ LOOP_DIV_LOW_SEL(dsi->feedback_div) |
+ LOW_PROGRAM_EN);
+ /*
+ * We need set PLL_INPUT_AND_LOOP_DIVIDER_RATIOS_CONTROL immediately
+ * to make the configured LSB effective according to IP simulation
+ * and lab test results.
+ * Only in this way can we get correct mipi phy pll frequency.
+ */
+ dw_mipi_dsi_phy_write(dsi, PLL_INPUT_AND_LOOP_DIVIDER_RATIOS_CONTROL,
+ PLL_LOOP_DIV_EN | PLL_INPUT_DIV_EN);
+ dw_mipi_dsi_phy_write(dsi, PLL_LOOP_DIVIDER_RATIO,
+ LOOP_DIV_HIGH_SEL(dsi->feedback_div) |
+ HIGH_PROGRAM_EN);
+ dw_mipi_dsi_phy_write(dsi, PLL_INPUT_AND_LOOP_DIVIDER_RATIOS_CONTROL,
+ PLL_LOOP_DIV_EN | PLL_INPUT_DIV_EN);
+
+ dw_mipi_dsi_phy_write(dsi, AFE_BIAS_BANDGAP_ANALOG_PROGRAMMABILITY,
+ LOW_PROGRAM_EN | BIASEXTR_SEL(BIASEXTR_127_7));
+ dw_mipi_dsi_phy_write(dsi, AFE_BIAS_BANDGAP_ANALOG_PROGRAMMABILITY,
+ HIGH_PROGRAM_EN | BANDGAP_SEL(BANDGAP_96_10));
+
+ dw_mipi_dsi_phy_write(dsi, BANDGAP_AND_BIAS_CONTROL,
+ POWER_CONTROL | INTERNAL_REG_CURRENT |
+ BIAS_BLOCK_ON | BANDGAP_ON);
+
+ dw_mipi_dsi_phy_write(dsi, TERMINATION_RESISTER_CONTROL,
+ TER_RESISTOR_LOW | TER_CAL_DONE |
+ SETRD_MAX | TER_RESISTORS_ON);
+ dw_mipi_dsi_phy_write(dsi, TERMINATION_RESISTER_CONTROL,
+ TER_RESISTOR_HIGH | LEVEL_SHIFTERS_ON |
+ SETRD_MAX | POWER_MANAGE |
+ TER_RESISTORS_ON);
+
+ dw_mipi_dsi_phy_write(dsi, HS_TX_CLOCK_LANE_REQUEST_STATE_TIME_CONTROL,
+ TLP_PROGRAM_EN | ns2bc(dsi, 500));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_CLOCK_LANE_PREPARE_STATE_TIME_CONTROL,
+ THS_PRE_PROGRAM_EN | ns2ui(dsi, 40));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_CLOCK_LANE_HS_ZERO_STATE_TIME_CONTROL,
+ THS_ZERO_PROGRAM_EN | ns2bc(dsi, 300));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_CLOCK_LANE_TRAIL_STATE_TIME_CONTROL,
+ THS_PRE_PROGRAM_EN | ns2ui(dsi, 100));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_CLOCK_LANE_EXIT_STATE_TIME_CONTROL,
+ BIT(5) | ns2bc(dsi, 100));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_CLOCK_LANE_POST_TIME_CONTROL,
+ BIT(5) | (ns2bc(dsi, 60) + 7));
+
+ dw_mipi_dsi_phy_write(dsi, HS_TX_DATA_LANE_REQUEST_STATE_TIME_CONTROL,
+ TLP_PROGRAM_EN | ns2bc(dsi, 500));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_DATA_LANE_PREPARE_STATE_TIME_CONTROL,
+ THS_PRE_PROGRAM_EN | (ns2ui(dsi, 50) + 20));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_DATA_LANE_HS_ZERO_STATE_TIME_CONTROL,
+ THS_ZERO_PROGRAM_EN | (ns2bc(dsi, 140) + 2));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_DATA_LANE_TRAIL_STATE_TIME_CONTROL,
+ THS_PRE_PROGRAM_EN | (ns2ui(dsi, 60) + 8));
+ dw_mipi_dsi_phy_write(dsi, HS_TX_DATA_LANE_EXIT_STATE_TIME_CONTROL,
+ BIT(5) | ns2bc(dsi, 100));
+
+ clk_disable_unprepare(dsi->phy_cfg_clk);
+
+ return ret;
+}
+
+static void dw_mipi_dsi_phy_power_on(void *priv_data)
+{
+ struct dw_mipi_dsi_rockchip *dsi = priv_data;
+ int ret;
+
+ ret = phy_set_mode(dsi->phy, PHY_MODE_MIPI_DPHY);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "failed to set phy mode: %d\n", ret);
+ return;
+ }
+
+ phy_configure(dsi->phy, &dsi->phy_opts);
+ phy_power_on(dsi->phy);
+}
+
+static void dw_mipi_dsi_phy_power_off(void *priv_data)
+{
+ struct dw_mipi_dsi_rockchip *dsi = priv_data;
+
+ phy_power_off(dsi->phy);
+}
+
+static int
+dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode,
+ unsigned long mode_flags, u32 lanes, u32 format,
+ unsigned int *lane_mbps)
+{
+ struct dw_mipi_dsi_rockchip *dsi = priv_data;
+ int bpp;
+ unsigned long mpclk, tmp;
+ unsigned int target_mbps = 1000;
+ unsigned int max_mbps = dppa_map[ARRAY_SIZE(dppa_map) - 1].max_mbps;
+ unsigned long best_freq = 0;
+ unsigned long fvco_min, fvco_max, fin, fout;
+ unsigned int min_prediv, max_prediv;
+ unsigned int _prediv, best_prediv;
+ unsigned long _fbdiv, best_fbdiv;
+ unsigned long min_delta = ULONG_MAX;
+
+ dsi->format = format;
+ bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
+ if (bpp < 0) {
+ DRM_DEV_ERROR(dsi->dev,
+ "failed to get bpp for pixel format %d\n",
+ dsi->format);
+ return bpp;
+ }
+
+ mpclk = DIV_ROUND_UP(mode->clock, MSEC_PER_SEC);
+ if (mpclk) {
+ /* take 1 / 0.8, since mbps must big than bandwidth of RGB */
+ tmp = mpclk * (bpp / lanes) * 10 / 8;
+ if (tmp < max_mbps)
+ target_mbps = tmp;
+ else
+ DRM_DEV_ERROR(dsi->dev,
+ "DPHY clock frequency is out of range\n");
+ }
+
+ /* for external phy only a the mipi_dphy_config is necessary */
+ if (dsi->phy) {
+ phy_mipi_dphy_get_default_config(mode->clock * 1000 * 10 / 8,
+ bpp, lanes,
+ &dsi->phy_opts.mipi_dphy);
+ dsi->lane_mbps = target_mbps;
+ *lane_mbps = dsi->lane_mbps;
+
+ return 0;
+ }
+
+ fin = clk_get_rate(dsi->pllref_clk);
+ fout = target_mbps * USEC_PER_SEC;
+
+ /* constraint: 5Mhz <= Fref / N <= 40MHz */
+ min_prediv = DIV_ROUND_UP(fin, 40 * USEC_PER_SEC);
+ max_prediv = fin / (5 * USEC_PER_SEC);
+
+ /* constraint: 80MHz <= Fvco <= 1500Mhz */
+ fvco_min = 80 * USEC_PER_SEC;
+ fvco_max = 1500 * USEC_PER_SEC;
+
+ for (_prediv = min_prediv; _prediv <= max_prediv; _prediv++) {
+ u64 tmp;
+ u32 delta;
+ /* Fvco = Fref * M / N */
+ tmp = (u64)fout * _prediv;
+ do_div(tmp, fin);
+ _fbdiv = tmp;
+ /*
+ * Due to the use of a "by 2 pre-scaler," the range of the
+ * feedback multiplication value M is limited to even division
+ * numbers, and m must be greater than 6, not bigger than 512.
+ */
+ if (_fbdiv < 6 || _fbdiv > 512)
+ continue;
+
+ _fbdiv += _fbdiv % 2;
+
+ tmp = (u64)_fbdiv * fin;
+ do_div(tmp, _prediv);
+ if (tmp < fvco_min || tmp > fvco_max)
+ continue;
+
+ delta = abs(fout - tmp);
+ if (delta < min_delta) {
+ best_prediv = _prediv;
+ best_fbdiv = _fbdiv;
+ min_delta = delta;
+ best_freq = tmp;
+ }
+ }
+
+ if (best_freq) {
+ dsi->lane_mbps = DIV_ROUND_UP(best_freq, USEC_PER_SEC);
+ *lane_mbps = dsi->lane_mbps;
+ dsi->input_div = best_prediv;
+ dsi->feedback_div = best_fbdiv;
+ } else {
+ DRM_DEV_ERROR(dsi->dev, "Can not find best_freq for DPHY\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+struct hstt {
+ unsigned int maxfreq;
+ struct dw_mipi_dsi_dphy_timing timing;
+};
+
+#define HSTT(_maxfreq, _c_lp2hs, _c_hs2lp, _d_lp2hs, _d_hs2lp) \
+{ \
+ .maxfreq = _maxfreq, \
+ .timing = { \
+ .clk_lp2hs = _c_lp2hs, \
+ .clk_hs2lp = _c_hs2lp, \
+ .data_lp2hs = _d_lp2hs, \
+ .data_hs2lp = _d_hs2lp, \
+ } \
+}
+
+/* Table A-3 High-Speed Transition Times */
+static struct hstt hstt_table[] = {
+ HSTT( 90, 32, 20, 26, 13),
+ HSTT( 100, 35, 23, 28, 14),
+ HSTT( 110, 32, 22, 26, 13),
+ HSTT( 130, 31, 20, 27, 13),
+ HSTT( 140, 33, 22, 26, 14),
+ HSTT( 150, 33, 21, 26, 14),
+ HSTT( 170, 32, 20, 27, 13),
+ HSTT( 180, 36, 23, 30, 15),
+ HSTT( 200, 40, 22, 33, 15),
+ HSTT( 220, 40, 22, 33, 15),
+ HSTT( 240, 44, 24, 36, 16),
+ HSTT( 250, 48, 24, 38, 17),
+ HSTT( 270, 48, 24, 38, 17),
+ HSTT( 300, 50, 27, 41, 18),
+ HSTT( 330, 56, 28, 45, 18),
+ HSTT( 360, 59, 28, 48, 19),
+ HSTT( 400, 61, 30, 50, 20),
+ HSTT( 450, 67, 31, 55, 21),
+ HSTT( 500, 73, 31, 59, 22),
+ HSTT( 550, 79, 36, 63, 24),
+ HSTT( 600, 83, 37, 68, 25),
+ HSTT( 650, 90, 38, 73, 27),
+ HSTT( 700, 95, 40, 77, 28),
+ HSTT( 750, 102, 40, 84, 28),
+ HSTT( 800, 106, 42, 87, 30),
+ HSTT( 850, 113, 44, 93, 31),
+ HSTT( 900, 118, 47, 98, 32),
+ HSTT( 950, 124, 47, 102, 34),
+ HSTT(1000, 130, 49, 107, 35),
+ HSTT(1050, 135, 51, 111, 37),
+ HSTT(1100, 139, 51, 114, 38),
+ HSTT(1150, 146, 54, 120, 40),
+ HSTT(1200, 153, 57, 125, 41),
+ HSTT(1250, 158, 58, 130, 42),
+ HSTT(1300, 163, 58, 135, 44),
+ HSTT(1350, 168, 60, 140, 45),
+ HSTT(1400, 172, 64, 144, 47),
+ HSTT(1450, 176, 65, 148, 48),
+ HSTT(1500, 181, 66, 153, 50)
+};
+
+static int
+dw_mipi_dsi_phy_get_timing(void *priv_data, unsigned int lane_mbps,
+ struct dw_mipi_dsi_dphy_timing *timing)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hstt_table); i++)
+ if (lane_mbps < hstt_table[i].maxfreq)
+ break;
+
+ if (i == ARRAY_SIZE(hstt_table))
+ i--;
+
+ *timing = hstt_table[i].timing;
+
+ return 0;
+}
+
+static const struct dw_mipi_dsi_phy_ops dw_mipi_dsi_rockchip_phy_ops = {
+ .init = dw_mipi_dsi_phy_init,
+ .power_on = dw_mipi_dsi_phy_power_on,
+ .power_off = dw_mipi_dsi_phy_power_off,
+ .get_lane_mbps = dw_mipi_dsi_get_lane_mbps,
+ .get_timing = dw_mipi_dsi_phy_get_timing,
+};
+
+static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi)
+{
+ if (dsi->cdata->lanecfg1_grf_reg)
+ regmap_write(dsi->grf_regmap, dsi->cdata->lanecfg1_grf_reg,
+ dsi->cdata->lanecfg1);
+
+ if (dsi->cdata->lanecfg2_grf_reg)
+ regmap_write(dsi->grf_regmap, dsi->cdata->lanecfg2_grf_reg,
+ dsi->cdata->lanecfg2);
+
+ if (dsi->cdata->enable_grf_reg)
+ regmap_write(dsi->grf_regmap, dsi->cdata->enable_grf_reg,
+ dsi->cdata->enable);
+}
+
+static void dw_mipi_dsi_rockchip_set_lcdsel(struct dw_mipi_dsi_rockchip *dsi,
+ int mux)
+{
+ if (!dsi->cdata->lcdsel_grf_reg)
+ return;
+
+ /* See comment inside dw_mipi_dsi_encoder_enable() for details */
+ pr_warn("lcdsel hardcoded to vopb\n");
+
+ regmap_write(dsi->grf_regmap, dsi->cdata->lcdsel_grf_reg,
+ mux ? dsi->cdata->lcdsel_lit : dsi->cdata->lcdsel_big);
+}
+
+static void dw_mipi_dsi_encoder_enable(struct dw_mipi_dsi_rockchip *dsi)
+{
+ int ret, mux;
+
+ /*
+ * TODO: We do not resolve the video pipeline ahead of time, so we
+ * currently have no easy way to impement Linux'
+ * drm_of_encoder_active_endpoint_id() in barebox.
+ *
+ * It's only needed for MIPI-DSI hosts with vopb/vopl ports though,
+ * not for the RK356x, so let's harcode the 0 and print a warning
+ * should we get e.g. RK3399 VOP1 support in future.
+ */
+ mux = 0;
+
+ /*
+ * For the RK3399, the clk of grf must be enabled before writing grf
+ * register. And for RK3288 or other soc, this grf_clk must be NULL,
+ * the clk_prepare_enable return true directly.
+ */
+ ret = clk_prepare_enable(dsi->grf_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
+ return;
+ }
+
+ dw_mipi_dsi_rockchip_set_lcdsel(dsi, mux);
+
+ clk_disable_unprepare(dsi->grf_clk);
+}
+
+static int dw_mipi_dsi_rockchip_bind(struct dw_mipi_dsi_rockchip *dsi)
+{
+ struct device *dev = dsi->dev;
+ int ret;
+
+ ret = clk_prepare_enable(dsi->pllref_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dev, "Failed to enable pllref_clk: %d\n", ret);
+ goto out_pm_runtime;
+ }
+
+ /*
+ * With the GRF clock running, write lane and dual-mode configurations
+ * that won't change immediately. If we waited until enable() to do
+ * this, things like panel preparation would not be able to send
+ * commands over DSI.
+ */
+ ret = clk_prepare_enable(dsi->grf_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
+ goto out_pll_clk;
+ }
+
+ dw_mipi_dsi_rockchip_config(dsi);
+
+ clk_disable_unprepare(dsi->grf_clk);
+
+ dw_mipi_dsi_encoder_enable(dsi);
+
+ dsi->dsi_bound = true;
+
+ return 0;
+
+out_pll_clk:
+ clk_disable_unprepare(dsi->pllref_clk);
+out_pm_runtime:
+
+ return ret;
+}
+
+static int dw_mipi_dsi_rockchip_host_attach(void *priv_data,
+ struct mipi_dsi_device *device)
+{
+ struct dw_mipi_dsi_rockchip *dsi = priv_data;
+ int ret;
+
+ if (dsi->usage_mode != DW_DSI_USAGE_IDLE) {
+ DRM_DEV_ERROR(dsi->dev, "dsi controller already in use\n");
+ return -EBUSY;
+ }
+
+ dsi->usage_mode = DW_DSI_USAGE_DSI;
+
+ ret = dw_mipi_dsi_rockchip_bind(dsi);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to register component: %d\n",
+ ret);
+ goto out;
+ }
+
+ return 0;
+
+out:
+ dsi->usage_mode = DW_DSI_USAGE_IDLE;
+ return ret;
+}
+
+static const struct dw_mipi_dsi_host_ops dw_mipi_dsi_rockchip_host_ops = {
+ .attach = dw_mipi_dsi_rockchip_host_attach,
+};
+
+static int dw_mipi_dsi_dphy_init(struct phy *phy)
+{
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+ int ret;
+
+ if (dsi->usage_mode != DW_DSI_USAGE_IDLE) {
+ DRM_DEV_ERROR(dsi->dev, "dsi controller already in use\n");
+ return -EBUSY;
+ }
+
+ dsi->usage_mode = DW_DSI_USAGE_PHY;
+
+ if (dsi->cdata->dphy_rx_init) {
+ ret = clk_prepare_enable(dsi->pclk);
+ if (ret < 0)
+ goto err_init;
+
+ ret = clk_prepare_enable(dsi->grf_clk);
+ if (ret) {
+ clk_disable_unprepare(dsi->pclk);
+ goto err_init;
+ }
+
+ ret = dsi->cdata->dphy_rx_init(phy);
+ clk_disable_unprepare(dsi->grf_clk);
+ clk_disable_unprepare(dsi->pclk);
+ if (ret < 0)
+ goto err_init;
+ }
+
+ return 0;
+
+err_init:
+ dsi->usage_mode = DW_DSI_USAGE_IDLE;
+
+ return ret;
+}
+
+static int dw_mipi_dsi_dphy_exit(struct phy *phy)
+{
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+
+ dsi->usage_mode = DW_DSI_USAGE_IDLE;
+
+ return 0;
+}
+
+static int dw_mipi_dsi_dphy_configure(struct phy *phy, union phy_configure_opts *opts)
+{
+ struct phy_configure_opts_mipi_dphy *config = &opts->mipi_dphy;
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+ int ret;
+
+ ret = phy_mipi_dphy_config_validate(&opts->mipi_dphy);
+ if (ret)
+ return ret;
+
+ dsi->dphy_config = *config;
+ dsi->lane_mbps = div_u64(config->hs_clk_rate, 1000 * 1000 * 1);
+
+ return 0;
+}
+
+static int dw_mipi_dsi_dphy_power_on(struct phy *phy)
+{
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+ int i, ret;
+
+ DRM_DEV_DEBUG(dsi->dev, "lanes %d - data_rate_mbps %u\n",
+ dsi->dphy_config.lanes, dsi->lane_mbps);
+
+ i = max_mbps_to_parameter(dsi->lane_mbps);
+ if (i < 0) {
+ DRM_DEV_ERROR(dsi->dev, "failed to get parameter for %dmbps clock\n",
+ dsi->lane_mbps);
+ return i;
+ }
+
+ ret = clk_prepare_enable(dsi->pclk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable pclk: %d\n", ret);
+ goto err_pclk;
+ }
+
+ ret = clk_prepare_enable(dsi->grf_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
+ goto err_grf_clk;
+ }
+
+ ret = clk_prepare_enable(dsi->phy_cfg_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable phy_cfg_clk: %d\n", ret);
+ goto err_phy_cfg_clk;
+ }
+
+ /* do soc-variant specific init */
+ if (dsi->cdata->dphy_rx_power_on) {
+ ret = dsi->cdata->dphy_rx_power_on(phy);
+ if (ret < 0) {
+ DRM_DEV_ERROR(dsi->dev, "hardware-specific phy bringup failed: %d\n", ret);
+ goto err_pwr_on;
+ }
+ }
+
+ /*
+ * Configure hsfreqrange according to frequency values
+ * Set clock lane and hsfreqrange by lane0(test code 0x44)
+ */
+ dw_mipi_dsi_phy_write(dsi, HS_RX_CONTROL_OF_LANE_CLK, 0);
+ dw_mipi_dsi_phy_write(dsi, HS_RX_CONTROL_OF_LANE_0,
+ HSFREQRANGE_SEL(dppa_map[i].hsfreqrange));
+ dw_mipi_dsi_phy_write(dsi, HS_RX_CONTROL_OF_LANE_1, 0);
+ dw_mipi_dsi_phy_write(dsi, HS_RX_CONTROL_OF_LANE_2, 0);
+ dw_mipi_dsi_phy_write(dsi, HS_RX_CONTROL_OF_LANE_3, 0);
+
+ /* Normal operation */
+ dw_mipi_dsi_phy_write(dsi, 0x0, 0);
+
+ clk_disable_unprepare(dsi->phy_cfg_clk);
+ clk_disable_unprepare(dsi->grf_clk);
+
+ return ret;
+
+err_pwr_on:
+ clk_disable_unprepare(dsi->phy_cfg_clk);
+err_phy_cfg_clk:
+ clk_disable_unprepare(dsi->grf_clk);
+err_grf_clk:
+ clk_disable_unprepare(dsi->pclk);
+err_pclk:
+ return ret;
+}
+
+static int dw_mipi_dsi_dphy_power_off(struct phy *phy)
+{
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+ int ret;
+
+ ret = clk_prepare_enable(dsi->grf_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
+ return ret;
+ }
+
+ if (dsi->cdata->dphy_rx_power_off) {
+ ret = dsi->cdata->dphy_rx_power_off(phy);
+ if (ret < 0)
+ DRM_DEV_ERROR(dsi->dev, "hardware-specific phy shutdown failed: %d\n", ret);
+ }
+
+ clk_disable_unprepare(dsi->grf_clk);
+ clk_disable_unprepare(dsi->pclk);
+
+ return ret;
+}
+
+static const struct phy_ops dw_mipi_dsi_dphy_ops = {
+ .configure = dw_mipi_dsi_dphy_configure,
+ .power_on = dw_mipi_dsi_dphy_power_on,
+ .power_off = dw_mipi_dsi_dphy_power_off,
+ .init = dw_mipi_dsi_dphy_init,
+ .exit = dw_mipi_dsi_dphy_exit,
+};
+
+static int dw_mipi_dsi_rockchip_probe(struct device *dev)
+{
+ struct device_node *np = dev->of_node;
+ struct dw_mipi_dsi_rockchip *dsi;
+ struct phy_provider *phy_provider;
+ struct resource *res;
+ const struct rockchip_dw_dsi_chip_data *cdata =
+ of_device_get_match_data(dev);
+ int ret, i;
+
+ dsi = calloc(sizeof(*dsi), 1);
+ if (!dsi)
+ return -ENOMEM;
+
+ dsi->base = dev_platform_get_and_ioremap_resource(dev, 0, &res);
+ if (IS_ERR(dsi->base)) {
+ DRM_DEV_ERROR(dev, "Unable to get dsi registers\n");
+ return PTR_ERR(dsi->base);
+ }
+
+ i = 0;
+ while (cdata[i].reg) {
+ if (cdata[i].reg == res->start) {
+ dsi->cdata = &cdata[i];
+ break;
+ }
+
+ i++;
+ }
+
+ if (!dsi->cdata) {
+ DRM_DEV_ERROR(dev, "no dsi-config for %s node\n", np->name);
+ return -EINVAL;
+ }
+
+ /* try to get a possible external dphy */
+ dsi->phy = phy_optional_get(dev, "dphy");
+ if (IS_ERR(dsi->phy)) {
+ ret = PTR_ERR(dsi->phy);
+ DRM_DEV_ERROR(dev, "failed to get mipi dphy: %d\n", ret);
+ return ret;
+ }
+
+ dsi->pclk = clk_get(dev, "pclk");
+ if (IS_ERR(dsi->pclk)) {
+ ret = PTR_ERR(dsi->pclk);
+ DRM_DEV_ERROR(dev, "Unable to get pclk: %d\n", ret);
+ return ret;
+ }
+
+ dsi->pllref_clk = clk_get(dev, "ref");
+ if (IS_ERR(dsi->pllref_clk)) {
+ if (dsi->phy) {
+ /*
+ * if external phy is present, pll will be
+ * generated there.
+ */
+ dsi->pllref_clk = NULL;
+ } else {
+ ret = PTR_ERR(dsi->pllref_clk);
+ DRM_DEV_ERROR(dev,
+ "Unable to get pll reference clock: %d\n",
+ ret);
+ return ret;
+ }
+ }
+
+ if (dsi->cdata->flags & DW_MIPI_NEEDS_PHY_CFG_CLK) {
+ dsi->phy_cfg_clk = clk_get(dev, "phy_cfg");
+ if (IS_ERR(dsi->phy_cfg_clk)) {
+ ret = PTR_ERR(dsi->phy_cfg_clk);
+ DRM_DEV_ERROR(dev,
+ "Unable to get phy_cfg_clk: %d\n", ret);
+ return ret;
+ }
+ }
+
+ if (dsi->cdata->flags & DW_MIPI_NEEDS_GRF_CLK) {
+ dsi->grf_clk = clk_get(dev, "grf");
+ if (IS_ERR(dsi->grf_clk)) {
+ ret = PTR_ERR(dsi->grf_clk);
+ DRM_DEV_ERROR(dev, "Unable to get grf_clk: %d\n", ret);
+ return ret;
+ }
+ }
+
+ dsi->grf_regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
+ if (IS_ERR(dsi->grf_regmap)) {
+ DRM_DEV_ERROR(dev, "Unable to get rockchip,grf\n");
+ return PTR_ERR(dsi->grf_regmap);
+ }
+
+ dsi->dev = dev;
+ dsi->pdata.base = dsi->base;
+ dsi->pdata.max_data_lanes = dsi->cdata->max_data_lanes;
+ dsi->pdata.phy_ops = &dw_mipi_dsi_rockchip_phy_ops;
+ dsi->pdata.host_ops = &dw_mipi_dsi_rockchip_host_ops;
+ dsi->pdata.priv_data = dsi;
+ dev_set_drvdata(dev, dsi);
+
+ dsi->dphy = phy_create(dev, NULL, &dw_mipi_dsi_dphy_ops);
+ if (IS_ERR(dsi->dphy)) {
+ DRM_DEV_ERROR(dev, "failed to create PHY\n");
+ return PTR_ERR(dsi->dphy);
+ }
+
+ phy_set_drvdata(dsi->dphy, dsi);
+ phy_provider = of_phy_provider_register(dev, of_phy_simple_xlate);
+ if (IS_ERR(phy_provider))
+ return PTR_ERR(phy_provider);
+
+ ret = clk_prepare_enable(dsi->pllref_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dev, "Failed to enable pllref_clk: %d\n", ret);
+ return ret;
+ }
+
+ dw_mipi_dsi_rockchip_config(dsi);
+
+ dsi->dmd = dw_mipi_dsi_bind(dev, &dsi->pdata);
+ if (IS_ERR(dsi->dmd)) {
+ dev_err(dev, "failed to bind: %pe\n", dsi->dmd);
+ return PTR_ERR(dsi->dmd);
+ }
+
+ return 0;
+}
+
+static const struct rockchip_dw_dsi_chip_data px30_chip_data[] = {
+ {
+ .reg = 0xff450000,
+ .lcdsel_grf_reg = PX30_GRF_PD_VO_CON1,
+ .lcdsel_big = HIWORD_UPDATE(0, PX30_DSI_LCDC_SEL),
+ .lcdsel_lit = HIWORD_UPDATE(PX30_DSI_LCDC_SEL,
+ PX30_DSI_LCDC_SEL),
+
+ .lanecfg1_grf_reg = PX30_GRF_PD_VO_CON1,
+ .lanecfg1 = HIWORD_UPDATE(0, PX30_DSI_TURNDISABLE |
+ PX30_DSI_FORCERXMODE |
+ PX30_DSI_FORCETXSTOPMODE),
+
+ .max_data_lanes = 4,
+ },
+ { /* sentinel */ }
+};
+
+static const struct rockchip_dw_dsi_chip_data rk3128_chip_data[] = {
+ {
+ .reg = 0x10110000,
+ .lanecfg1_grf_reg = RK3128_GRF_LVDS_CON0,
+ .lanecfg1 = HIWORD_UPDATE(0, RK3128_DSI_TURNDISABLE |
+ RK3128_DSI_FORCERXMODE |
+ RK3128_DSI_FORCETXSTOPMODE),
+ .max_data_lanes = 4,
+ },
+ { /* sentinel */ }
+};
+
+static const struct rockchip_dw_dsi_chip_data rk3288_chip_data[] = {
+ {
+ .reg = 0xff960000,
+ .lcdsel_grf_reg = RK3288_GRF_SOC_CON6,
+ .lcdsel_big = HIWORD_UPDATE(0, RK3288_DSI0_LCDC_SEL),
+ .lcdsel_lit = HIWORD_UPDATE(RK3288_DSI0_LCDC_SEL, RK3288_DSI0_LCDC_SEL),
+
+ .max_data_lanes = 4,
+ },
+ {
+ .reg = 0xff964000,
+ .lcdsel_grf_reg = RK3288_GRF_SOC_CON6,
+ .lcdsel_big = HIWORD_UPDATE(0, RK3288_DSI1_LCDC_SEL),
+ .lcdsel_lit = HIWORD_UPDATE(RK3288_DSI1_LCDC_SEL, RK3288_DSI1_LCDC_SEL),
+
+ .max_data_lanes = 4,
+ },
+ { /* sentinel */ }
+};
+
+static int rk3399_dphy_tx1rx1_init(struct phy *phy)
+{
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+
+ /*
+ * Set TX1RX1 source to isp1.
+ * Assume ISP0 is supplied by the RX0 dphy.
+ */
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON24,
+ HIWORD_UPDATE(0, RK3399_TXRX_SRC_SEL_ISP0));
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON24,
+ HIWORD_UPDATE(0, RK3399_TXRX_MASTERSLAVEZ));
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON24,
+ HIWORD_UPDATE(0, RK3399_TXRX_BASEDIR));
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON23,
+ HIWORD_UPDATE(0, RK3399_DSI1_ENABLE));
+
+ return 0;
+}
+
+static int rk3399_dphy_tx1rx1_power_on(struct phy *phy)
+{
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+
+ /* tester reset pulse */
+ dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLK | PHY_TESTCLR);
+ udelay(100);
+
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON24,
+ HIWORD_UPDATE(0, RK3399_TXRX_MASTERSLAVEZ));
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON24,
+ HIWORD_UPDATE(RK3399_TXRX_BASEDIR, RK3399_TXRX_BASEDIR));
+
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON23,
+ HIWORD_UPDATE(0, RK3399_DSI1_FORCERXMODE));
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON23,
+ HIWORD_UPDATE(0, RK3399_DSI1_FORCETXSTOPMODE));
+
+ /* Disable lane turn around, which is ignored in receive mode */
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON24,
+ HIWORD_UPDATE(0, RK3399_TXRX_TURNREQUEST));
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON23,
+ HIWORD_UPDATE(RK3399_DSI1_TURNDISABLE,
+ RK3399_DSI1_TURNDISABLE));
+ udelay(100);
+
+ dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLK | PHY_UNTESTCLR);
+ udelay(100);
+
+ /* Enable dphy lanes */
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON23,
+ HIWORD_UPDATE(GENMASK(dsi->dphy_config.lanes - 1, 0),
+ RK3399_DSI1_ENABLE));
+
+ udelay(100);
+
+ return 0;
+}
+
+static int rk3399_dphy_tx1rx1_power_off(struct phy *phy)
+{
+ struct dw_mipi_dsi_rockchip *dsi = phy_get_drvdata(phy);
+
+ regmap_write(dsi->grf_regmap, RK3399_GRF_SOC_CON23,
+ HIWORD_UPDATE(0, RK3399_DSI1_ENABLE));
+
+ return 0;
+}
+
+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,
+
+ .dphy_rx_init = rk3399_dphy_tx1rx1_init,
+ .dphy_rx_power_on = rk3399_dphy_tx1rx1_power_on,
+ .dphy_rx_power_off = rk3399_dphy_tx1rx1_power_off,
+ },
+ { /* sentinel */ }
+};
+
+static const struct rockchip_dw_dsi_chip_data rk3568_chip_data[] = {
+ {
+ .reg = 0xfe060000,
+ .lanecfg1_grf_reg = RK3568_GRF_VO_CON2,
+ .lanecfg1 = HIWORD_UPDATE(0, RK3568_DSI0_SKEWCALHS |
+ RK3568_DSI0_FORCETXSTOPMODE |
+ RK3568_DSI0_TURNDISABLE |
+ RK3568_DSI0_FORCERXMODE),
+ .max_data_lanes = 4,
+ },
+ {
+ .reg = 0xfe070000,
+ .lanecfg1_grf_reg = RK3568_GRF_VO_CON3,
+ .lanecfg1 = HIWORD_UPDATE(0, RK3568_DSI1_SKEWCALHS |
+ RK3568_DSI1_FORCETXSTOPMODE |
+ RK3568_DSI1_TURNDISABLE |
+ RK3568_DSI1_FORCERXMODE),
+ .max_data_lanes = 4,
+ },
+ { /* sentinel */ }
+};
+
+static const struct rockchip_dw_dsi_chip_data rv1126_chip_data[] = {
+ {
+ .reg = 0xffb30000,
+ .lanecfg1_grf_reg = RV1126_GRF_DSIPHY_CON,
+ .lanecfg1 = HIWORD_UPDATE(0, RV1126_DSI_TURNDISABLE |
+ RV1126_DSI_FORCERXMODE |
+ RV1126_DSI_FORCETXSTOPMODE),
+ .max_data_lanes = 4,
+ },
+ { /* sentinel */ }
+};
+
+static const struct of_device_id dw_mipi_dsi_rockchip_dt_ids[] = {
+ {
+ .compatible = "rockchip,px30-mipi-dsi",
+ .data = &px30_chip_data,
+ }, {
+ .compatible = "rockchip,rk3128-mipi-dsi",
+ .data = &rk3128_chip_data,
+ }, {
+ .compatible = "rockchip,rk3288-mipi-dsi",
+ .data = &rk3288_chip_data,
+ }, {
+ .compatible = "rockchip,rk3399-mipi-dsi",
+ .data = &rk3399_chip_data,
+ }, {
+ .compatible = "rockchip,rk3568-mipi-dsi",
+ .data = &rk3568_chip_data,
+ }, {
+ .compatible = "rockchip,rv1126-mipi-dsi",
+ .data = &rv1126_chip_data,
+ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dw_mipi_dsi_rockchip_dt_ids);
+
+struct driver dw_mipi_dsi_rockchip_driver = {
+ .name = "dw-mipi-dsi-rockchip",
+ .probe = dw_mipi_dsi_rockchip_probe,
+ .of_match_table = dw_mipi_dsi_rockchip_dt_ids,
+};
+device_platform_driver(dw_mipi_dsi_rockchip_driver);
diff --git a/drivers/video/rockchip/rockchip_drm_vop2.c b/drivers/video/rockchip/rockchip_drm_vop2.c
index f42b0c48eede..fd3493c0a802 100644
--- a/drivers/video/rockchip/rockchip_drm_vop2.c
+++ b/drivers/video/rockchip/rockchip_drm_vop2.c
@@ -1420,7 +1420,8 @@ static int vop2_output_mode(u32 bus_format, int crtc_endpoint_id)
if (vop2_output_if_is_hdmi(crtc_endpoint_id))
return ROCKCHIP_OUT_MODE_AAAA;
- if (vop2_output_if_is_dpi(crtc_endpoint_id))
+ if (vop2_output_if_is_dpi(crtc_endpoint_id) ||
+ vop2_output_if_is_mipi(crtc_endpoint_id))
switch (bus_format) {
case MEDIA_BUS_FMT_RGB666_1X18:
return ROCKCHIP_OUT_MODE_P666;
--
2.47.3
^ permalink raw reply [flat|nested] 4+ messages in thread