--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018 Liviu Dudau <liviu@dudau.co.uk>
+ *
+ * Based on the Linux driver, (C) 2012 Texas Instruments
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <display.h>
+#include <i2c.h>
+
+/*
+ * TDA19988 uses paged registers. We encode the page# in the upper
+ * bits of the register#. It also means that reads/writes to a register
+ * have to ensure that the register's page is selected as the current
+ * page.
+ */
+#define REG(page, addr) (((page) << 8) | (addr))
+#define REG2ADDR(reg) ((reg) & 0xff)
+#define REG2PAGE(reg) (((reg) >> 8) & 0xff)
+
+/* register for setting current page */
+#define REG_CURRENT_PAGE 0xff
+
+/* Page 00h: General Control */
+#define REG_VERSION_LSB REG(0x00, 0x00) /* read */
+#define REG_MAIN_CNTRL0 REG(0x00, 0x01) /* read/write */
+#define MAIN_CNTRL0_SR BIT(0)
+#define MAIN_CNTRL0_DECS BIT(1)
+#define MAIN_CNTRL0_DEHS BIT(2)
+#define MAIN_CNTRL0_CECS BIT(3)
+#define MAIN_CNTRL0_CEHS BIT(4)
+#define MAIN_CNTRL0_SCALER BIT(7)
+#define REG_VERSION_MSB REG(0x00, 0x02) /* read */
+#define REG_SOFTRESET REG(0x00, 0x0a) /* write */
+#define SOFTRESET_AUDIO BIT(0)
+#define SOFTRESET_I2C_MASTER BIT(1)
+#define REG_DDC_DISABLE REG(0x00, 0x0b) /* read/write */
+#define REG_I2C_MASTER REG(0x00, 0x0d) /* read/write */
+#define I2C_MASTER_DIS_MM BIT(0)
+#define I2C_MASTER_DIS_FILT BIT(1)
+#define I2C_MASTER_APP_STRT_LAT BIT(2)
+#define REG_FEAT_POWERDOWN REG(0x00, 0x0e) /* read/write */
+#define FEAT_POWERDOWN_PREFILT BIT(0)
+#define FEAT_POWERDOWN_CSC BIT(1)
+#define FEAT_POWERDOWN_SPDIF BIT(3)
+#define REG_INT_FLAGS_0 REG(0x00, 0x0f) /* read/write */
+#define REG_INT_FLAGS_1 REG(0x00, 0x10) /* read/write */
+#define REG_INT_FLAGS_2 REG(0x00, 0x11) /* read/write */
+#define INT_FLAGS_2_EDID_BLK_RD BIT(1)
+#define REG_ENA_VP_0 REG(0x00, 0x18) /* read/write */
+#define REG_ENA_VP_1 REG(0x00, 0x19) /* read/write */
+#define REG_ENA_VP_2 REG(0x00, 0x1a) /* read/write */
+#define REG_ENA_AP REG(0x00, 0x1e) /* read/write */
+#define REG_VIP_CNTRL_0 REG(0x00, 0x20) /* write */
+#define VIP_CNTRL_0_MIRR_A BIT(7)
+#define VIP_CNTRL_0_SWAP_A(x) (((x) & 7) << 4)
+#define VIP_CNTRL_0_MIRR_B BIT(3)
+#define VIP_CNTRL_0_SWAP_B(x) (((x) & 7) << 0)
+#define REG_VIP_CNTRL_1 REG(0x00, 0x21) /* write */
+#define VIP_CNTRL_1_MIRR_C BIT(7)
+#define VIP_CNTRL_1_SWAP_C(x) (((x) & 7) << 4)
+#define VIP_CNTRL_1_MIRR_D BIT(3)
+#define VIP_CNTRL_1_SWAP_D(x) (((x) & 7) << 0)
+#define REG_VIP_CNTRL_2 REG(0x00, 0x22) /* write */
+#define VIP_CNTRL_2_MIRR_E BIT(7)
+#define VIP_CNTRL_2_SWAP_E(x) (((x) & 7) << 4)
+#define VIP_CNTRL_2_MIRR_F BIT(3)
+#define VIP_CNTRL_2_SWAP_F(x) (((x) & 7) << 0)
+#define REG_VIP_CNTRL_3 REG(0x00, 0x23) /* write */
+#define VIP_CNTRL_3_X_TGL BIT(0)
+#define VIP_CNTRL_3_H_TGL BIT(1)
+#define VIP_CNTRL_3_V_TGL BIT(2)
+#define VIP_CNTRL_3_EMB BIT(3)
+#define VIP_CNTRL_3_SYNC_DE BIT(4)
+#define VIP_CNTRL_3_SYNC_HS BIT(5)
+#define VIP_CNTRL_3_DE_INT BIT(6)
+#define VIP_CNTRL_3_EDGE BIT(7)
+#define REG_VIP_CNTRL_4 REG(0x00, 0x24) /* write */
+#define VIP_CNTRL_4_BLC(x) (((x) & 3) << 0)
+#define VIP_CNTRL_4_BLANKIT(x) (((x) & 3) << 2)
+#define VIP_CNTRL_4_CCIR656 BIT(4)
+#define VIP_CNTRL_4_656_ALT BIT(5)
+#define VIP_CNTRL_4_TST_656 BIT(6)
+#define VIP_CNTRL_4_TST_PAT BIT(7)
+#define REG_VIP_CNTRL_5 REG(0x00, 0x25) /* write */
+#define VIP_CNTRL_5_CKCASE BIT(0)
+#define VIP_CNTRL_5_SP_CNT(x) (((x) & 3) << 1)
+#define REG_MUX_VP_VIP_OUT REG(0x00, 0x27) /* read/write */
+#define REG_MAT_CONTRL REG(0x00, 0x80) /* write */
+#define MAT_CONTRL_MAT_SC(x) (((x) & 3) << 0)
+#define MAT_CONTRL_MAT_BP BIT(2)
+#define REG_VIDFORMAT REG(0x00, 0xa0) /* write */
+#define REG_REFPIX_MSB REG(0x00, 0xa1) /* write */
+#define REG_REFPIX_LSB REG(0x00, 0xa2) /* write */
+#define REG_REFLINE_MSB REG(0x00, 0xa3) /* write */
+#define REG_REFLINE_LSB REG(0x00, 0xa4) /* write */
+#define REG_NPIX_MSB REG(0x00, 0xa5) /* write */
+#define REG_NPIX_LSB REG(0x00, 0xa6) /* write */
+#define REG_NLINE_MSB REG(0x00, 0xa7) /* write */
+#define REG_NLINE_LSB REG(0x00, 0xa8) /* write */
+#define REG_VS_LINE_STRT_1_MSB REG(0x00, 0xa9) /* write */
+#define REG_VS_LINE_STRT_1_LSB REG(0x00, 0xaa) /* write */
+#define REG_VS_PIX_STRT_1_MSB REG(0x00, 0xab) /* write */
+#define REG_VS_PIX_STRT_1_LSB REG(0x00, 0xac) /* write */
+#define REG_VS_LINE_END_1_MSB REG(0x00, 0xad) /* write */
+#define REG_VS_LINE_END_1_LSB REG(0x00, 0xae) /* write */
+#define REG_VS_PIX_END_1_MSB REG(0x00, 0xaf) /* write */
+#define REG_VS_PIX_END_1_LSB REG(0x00, 0xb0) /* write */
+#define REG_VS_LINE_STRT_2_MSB REG(0x00, 0xb1) /* write */
+#define REG_VS_LINE_STRT_2_LSB REG(0x00, 0xb2) /* write */
+#define REG_VS_PIX_STRT_2_MSB REG(0x00, 0xb3) /* write */
+#define REG_VS_PIX_STRT_2_LSB REG(0x00, 0xb4) /* write */
+#define REG_VS_LINE_END_2_MSB REG(0x00, 0xb5) /* write */
+#define REG_VS_LINE_END_2_LSB REG(0x00, 0xb6) /* write */
+#define REG_VS_PIX_END_2_MSB REG(0x00, 0xb7) /* write */
+#define REG_VS_PIX_END_2_LSB REG(0x00, 0xb8) /* write */
+#define REG_HS_PIX_START_MSB REG(0x00, 0xb9) /* write */
+#define REG_HS_PIX_START_LSB REG(0x00, 0xba) /* write */
+#define REG_HS_PIX_STOP_MSB REG(0x00, 0xbb) /* write */
+#define REG_HS_PIX_STOP_LSB REG(0x00, 0xbc) /* write */
+#define REG_VWIN_START_1_MSB REG(0x00, 0xbd) /* write */
+#define REG_VWIN_START_1_LSB REG(0x00, 0xbe) /* write */
+#define REG_VWIN_END_1_MSB REG(0x00, 0xbf) /* write */
+#define REG_VWIN_END_1_LSB REG(0x00, 0xc0) /* write */
+#define REG_VWIN_START_2_MSB REG(0x00, 0xc1) /* write */
+#define REG_VWIN_START_2_LSB REG(0x00, 0xc2) /* write */
+#define REG_VWIN_END_2_MSB REG(0x00, 0xc3) /* write */
+#define REG_VWIN_END_2_LSB REG(0x00, 0xc4) /* write */
+#define REG_DE_START_MSB REG(0x00, 0xc5) /* write */
+#define REG_DE_START_LSB REG(0x00, 0xc6) /* write */
+#define REG_DE_STOP_MSB REG(0x00, 0xc7) /* write */
+#define REG_DE_STOP_LSB REG(0x00, 0xc8) /* write */
+#define REG_TBG_CNTRL_0 REG(0x00, 0xca) /* write */
+#define TBG_CNTRL_0_TOP_TGL BIT(0)
+#define TBG_CNTRL_0_TOP_SEL BIT(1)
+#define TBG_CNTRL_0_DE_EXT BIT(2)
+#define TBG_CNTRL_0_TOP_EXT BIT(3)
+#define TBG_CNTRL_0_FRAME_DIS BIT(5)
+#define TBG_CNTRL_0_SYNC_MTHD BIT(6)
+#define TBG_CNTRL_0_SYNC_ONCE BIT(7)
+#define REG_TBG_CNTRL_1 REG(0x00, 0xcb) /* write */
+#define TBG_CNTRL_1_H_TGL BIT(0)
+#define TBG_CNTRL_1_V_TGL BIT(1)
+#define TBG_CNTRL_1_TGL_EN BIT(2)
+#define TBG_CNTRL_1_X_EXT BIT(3)
+#define TBG_CNTRL_1_H_EXT BIT(4)
+#define TBG_CNTRL_1_V_EXT BIT(5)
+#define TBG_CNTRL_1_DWIN_DIS BIT(6)
+#define REG_ENABLE_SPACE REG(0x00, 0xd6) /* write */
+#define REG_HVF_CNTRL_0 REG(0x00, 0xe4) /* write */
+#define HVF_CNTRL_0_SM BIT(7)
+#define HVF_CNTRL_0_RWB BIT(6)
+#define HVF_CNTRL_0_PREFIL(x) (((x) & 3) << 2)
+#define HVF_CNTRL_0_INTPOL(x) (((x) & 3) << 0)
+#define REG_HVF_CNTRL_1 REG(0x00, 0xe5) /* write */
+#define HVF_CNTRL_1_FOR BIT(0)
+#define HVF_CNTRL_1_YUVBLK BIT(1)
+#define HVF_CNTRL_1_VQR(x) (((x) & 3) << 2)
+#define HVF_CNTRL_1_PAD(x) (((x) & 3) << 4)
+#define REG_RPT_CNTRL REG(0x00, 0xf0) /* write */
+#define REG_AIP_CLKSEL REG(0x00, 0xfd) /* write */
+#define AIP_CLKSEL_AIP_SPDIF (0 << 3)
+#define AIP_CLKSEL_AIP_I2S BIT(3)
+#define AIP_CLKSEL_FS_ACLK (0 << 0)
+#define AIP_CLKSEL_FS_MCLK BIT(0)
+
+/* Page 02h: PLL settings */
+#define REG_PLL_SERIAL_1 REG(0x02, 0x00) /* read/write */
+#define PLL_SERIAL_1_SRL_FDN BIT(0)
+#define PLL_SERIAL_1_SRL_IZ(x) (((x) & 3) << 1)
+#define PLL_SERIAL_1_SRL_MAN_IZ BIT(6)
+#define REG_PLL_SERIAL_2 REG(0x02, 0x01) /* read/write */
+#define PLL_SERIAL_2_SRL_NOSC(x) ((x) << 0)
+#define PLL_SERIAL_2_SRL_PR(x) (((x) & 0xf) << 4)
+#define REG_PLL_SERIAL_3 REG(0x02, 0x02) /* read/write */
+#define PLL_SERIAL_3_SRL_CCIR BIT(0)
+#define PLL_SERIAL_3_SRL_DE BIT(2)
+#define PLL_SERIAL_3_SRL_PXIN_SEL BIT(4)
+#define REG_SERIALIZER REG(0x02, 0x03) /* read/write */
+#define REG_BUFFER_OUT REG(0x02, 0x04) /* read/write */
+#define REG_PLL_SCG1 REG(0x02, 0x05) /* read/write */
+#define REG_PLL_SCG2 REG(0x02, 0x06) /* read/write */
+#define REG_PLL_SCGN1 REG(0x02, 0x07) /* read/write */
+#define REG_PLL_SCGN2 REG(0x02, 0x08) /* read/write */
+#define REG_PLL_SCGR1 REG(0x02, 0x09) /* read/write */
+#define REG_PLL_SCGR2 REG(0x02, 0x0a) /* read/write */
+#define REG_AUDIO_DIV REG(0x02, 0x0e) /* read/write */
+#define AUDIO_DIV_SERCLK_1 0
+#define AUDIO_DIV_SERCLK_2 1
+#define AUDIO_DIV_SERCLK_4 2
+#define AUDIO_DIV_SERCLK_8 3
+#define AUDIO_DIV_SERCLK_16 4
+#define AUDIO_DIV_SERCLK_32 5
+#define REG_SEL_CLK REG(0x02, 0x11) /* read/write */
+#define SEL_CLK_SEL_CLK1 BIT(0)
+#define SEL_CLK_SEL_VRF_CLK(x) (((x) & 3) << 1)
+#define SEL_CLK_ENA_SC_CLK BIT(3)
+#define REG_ANA_GENERAL REG(0x02, 0x12) /* read/write */
+
+/* Page 09h: EDID Control */
+#define REG_EDID_DATA_0 REG(0x09, 0x00) /* read */
+/* next 127 successive registers are the EDID block */
+#define REG_EDID_CTRL REG(0x09, 0xfa) /* read/write */
+#define REG_DDC_ADDR REG(0x09, 0xfb) /* read/write */
+#define REG_DDC_OFFS REG(0x09, 0xfc) /* read/write */
+#define REG_DDC_SEGM_ADDR REG(0x09, 0xfd) /* read/write */
+#define REG_DDC_SEGM REG(0x09, 0xfe) /* read/write */
+
+/* Page 11h: audio settings and content info packets */
+#define REG_AIP_CNTRL_0 REG(0x11, 0x00) /* read/write */
+#define AIP_CNTRL_0_RST_FIFO BIT(0)
+#define REG_ENC_CNTRL REG(0x11, 0x0d) /* read/write */
+#define ENC_CNTRL_RST_ENC BIT(0)
+#define ENC_CNTRL_RST_SEL BIT(1)
+#define ENC_CNTRL_CTL_CODE(x) (((x) & 3) << 2)
+
+/* Page 12h: HDCP and OTP */
+#define REG_TX3 REG(0x12, 0x9a) /* read/write */
+#define REG_TX4 REG(0x12, 0x9b) /* read/write */
+#define TX4_PD_RAM BIT(1)
+#define REG_TX33 REG(0x12, 0xb8) /* read/write */
+#define TX33_HDMI BIT(1)
+
+/* CEC registers, not paged */
+#define REG_CEC_FRO_IM_CLK_CTRL 0xfb /* read/write */
+#define CEC_FRO_IM_CLK_CTRL_GHOST_DIS BIT(7)
+#define CEC_FRO_IM_CLK_CTRL_ENA_OTP BIT(6)
+#define CEC_FRO_IM_CLK_CTRL_IMCLK_SEL BIT(1)
+#define CEC_FRO_IM_CLK_CTRL_FRO_DIV BIT(0)
+#define REG_CEC_RXSHPDINTENA 0xfc /* read/write */
+#define REG_CEC_RXSHPDINT 0xfd /* read */
+#define CEC_RXSHPDINT_RXSENS BIT(0)
+#define CEC_RXSHPDINT_HPD BIT(1)
+#define TDA19988_CEC_ENAMODS 0xff /* read/write */
+#define CEC_ENAMODS_EN_RXSENS BIT(2)
+#define CEC_ENAMODS_EN_HDMI BIT(1)
+#define CEC_ENAMODS_EN_CEC BIT(0)
+
+/* Device versions */
+#define TDA9989N2 0x0101
+#define TDA19989 0x0201
+#define TDA19989N2 0x0202
+#define TDA19988 0x0301
+
+struct tda19988_priv {
+ struct udevice *chip;
+ struct udevice *cec_chip;
+ u16 revision;
+ u8 current_page;
+};
+
+static void tda19988_register_set(struct tda19988_priv *priv, u16 reg, u8 val)
+{
+ u8 old_val, page = REG2PAGE(reg);
+
+ if (priv->current_page != page) {
+ dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
+ priv->current_page = page;
+ }
+ old_val = dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
+ old_val |= val;
+ dm_i2c_reg_write(priv->chip, REG2ADDR(reg), old_val);
+}
+
+static void tda19988_register_clear(struct tda19988_priv *priv, u16 reg, u8 val)
+{
+ u8 old_val, page = REG2PAGE(reg);
+
+ if (priv->current_page != page) {
+ dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
+ priv->current_page = page;
+ }
+ old_val = dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
+ old_val &= ~val;
+ dm_i2c_reg_write(priv->chip, REG2ADDR(reg), old_val);
+}
+
+static void tda19988_register_write(struct tda19988_priv *priv, u16 reg, u8 val)
+{
+ u8 page = REG2PAGE(reg);
+
+ if (priv->current_page != page) {
+ dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
+ priv->current_page = page;
+ }
+ dm_i2c_reg_write(priv->chip, REG2ADDR(reg), val);
+}
+
+static int tda19988_register_read(struct tda19988_priv *priv, u16 reg)
+{
+ u8 page = REG2PAGE(reg);
+
+ if (priv->current_page != page) {
+ dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
+ priv->current_page = page;
+ }
+ return dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
+}
+
+static void tda19988_register_write16(struct tda19988_priv *priv,
+ u16 reg, u16 val)
+{
+ u8 buf[] = { val >> 8, val }, page = REG2PAGE(reg);
+
+ if (priv->current_page != page) {
+ dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
+ priv->current_page = page;
+ }
+ dm_i2c_write(priv->chip, REG2ADDR(reg), buf, 2);
+}
+
+static int tda19988_read_edid(struct udevice *dev, u8 *buf, int buf_size)
+{
+ struct tda19988_priv *priv = dev_get_priv(dev);
+ int i, val = 0, offset = 0;
+
+ /*
+ * The TDA998x has a problem when trying to read the EDID close to a
+ * HPD assertion: it needs a delay of 100ms to avoid timing out while
+ * trying to read EDID data.
+ */
+ mdelay(120);
+
+ if (priv->revision == TDA19988)
+ tda19988_register_clear(priv, REG_TX4, TX4_PD_RAM);
+
+ while (offset < buf_size) {
+ tda19988_register_write(priv, REG_DDC_ADDR, 0xa0);
+ tda19988_register_write(priv, REG_DDC_OFFS, offset);
+ tda19988_register_write(priv, REG_DDC_SEGM_ADDR, 0x60);
+ tda19988_register_write(priv, REG_DDC_SEGM, 0);
+
+ /* enable reading EDID */
+ tda19988_register_write(priv, REG_EDID_CTRL, 1);
+
+ /* flags must be cleared by software */
+ tda19988_register_write(priv, REG_EDID_CTRL, 0);
+
+ /* wait for block read to complete */
+ for (i = 300; i > 0; i--) {
+ mdelay(1);
+ val = tda19988_register_read(priv, REG_INT_FLAGS_2);
+ if (val < 0)
+ return val;
+ if (val & INT_FLAGS_2_EDID_BLK_RD)
+ break;
+ }
+
+ if (i == 0)
+ return -ETIMEDOUT;
+
+ priv->current_page = REG2PAGE(REG_EDID_DATA_0);
+ dm_i2c_reg_write(priv->chip,
+ REG_CURRENT_PAGE, REG2PAGE(REG_EDID_DATA_0));
+ val = dm_i2c_read(priv->chip,
+ REG2ADDR(REG_EDID_DATA_0), buf + offset, 128);
+ offset += 128;
+ }
+
+ if (priv->revision == TDA19988)
+ tda19988_register_set(priv, REG_TX4, TX4_PD_RAM);
+
+ return offset;
+}
+
+static int tda19988_enable(struct udevice *dev, int panel_bpp,
+ const struct display_timing *timing)
+{
+ struct tda19988_priv *priv = dev_get_priv(dev);
+ u8 div = 148500000 / timing->pixelclock.typ, reg;
+ u16 line_clocks, lines;
+
+ if (dev != 0) {
+ div--;
+ if (div > 3)
+ div = 3;
+ }
+ /* first disable the video ports */
+ tda19988_register_write(priv, REG_ENA_VP_0, 0);
+ tda19988_register_write(priv, REG_ENA_VP_1, 0);
+ tda19988_register_write(priv, REG_ENA_VP_2, 0);
+
+ /* shutdown audio */
+ tda19988_register_write(priv, REG_ENA_AP, 0);
+
+ line_clocks = timing->hsync_len.typ + timing->hback_porch.typ +
+ timing->hactive.typ + timing->hfront_porch.typ;
+ lines = timing->vsync_len.typ + timing->vback_porch.typ +
+ timing->vactive.typ + timing->vfront_porch.typ;
+
+ /* mute the audio FIFO */
+ tda19988_register_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
+ /* HDMI HDCP: off */
+ tda19988_register_write(priv, REG_TBG_CNTRL_1, TBG_CNTRL_1_DWIN_DIS);
+ tda19988_register_clear(priv, REG_TX33, TX33_HDMI);
+ tda19988_register_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(0));
+
+ /* no pre-filter or interpolator */
+ tda19988_register_write(priv, REG_HVF_CNTRL_0, HVF_CNTRL_0_PREFIL(0) |
+ HVF_CNTRL_0_INTPOL(0));
+ tda19988_register_set(priv, REG_FEAT_POWERDOWN,
+ FEAT_POWERDOWN_PREFILT);
+ tda19988_register_write(priv, REG_VIP_CNTRL_5, VIP_CNTRL_5_SP_CNT(0));
+ tda19988_register_write(priv, REG_VIP_CNTRL_4,
+ VIP_CNTRL_4_BLANKIT(0) | VIP_CNTRL_4_BLC(0) |
+ VIP_CNTRL_4_TST_PAT);
+
+ tda19988_register_clear(priv, REG_PLL_SERIAL_1,
+ PLL_SERIAL_1_SRL_MAN_IZ);
+ tda19988_register_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR |
+ PLL_SERIAL_3_SRL_DE);
+
+ tda19988_register_write(priv, REG_SERIALIZER, 0);
+ tda19988_register_write(priv, REG_HVF_CNTRL_1, HVF_CNTRL_1_VQR(0));
+
+ tda19988_register_write(priv, REG_RPT_CNTRL, 0);
+ tda19988_register_write(priv, REG_SEL_CLK, SEL_CLK_SEL_VRF_CLK(0) |
+ SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
+ tda19988_register_write(priv, REG_PLL_SERIAL_2,
+ PLL_SERIAL_2_SRL_NOSC(div) |
+ PLL_SERIAL_2_SRL_PR(0));
+
+ /* set color matrix bypass flag: */
+ tda19988_register_write(priv, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP |
+ MAT_CONTRL_MAT_SC(1));
+ tda19988_register_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
+
+ /* set BIAS tmds value: */
+ tda19988_register_write(priv, REG_ANA_GENERAL, 0x09);
+
+ /*
+ * Sync on rising HSYNC/VSYNC
+ */
+ reg = VIP_CNTRL_3_SYNC_HS;
+
+ /*
+ * TDA19988 requires high-active sync at input stage,
+ * so invert low-active sync provided by master encoder here
+ */
+ if (timing->flags & DISPLAY_FLAGS_HSYNC_LOW)
+ reg |= VIP_CNTRL_3_H_TGL;
+ if (timing->flags & DISPLAY_FLAGS_VSYNC_LOW)
+ reg |= VIP_CNTRL_3_V_TGL;
+ tda19988_register_write(priv, REG_VIP_CNTRL_3, reg);
+
+ tda19988_register_write(priv, REG_VIDFORMAT, 0x00);
+ tda19988_register_write16(priv, REG_REFPIX_MSB,
+ timing->hfront_porch.typ + 3);
+ tda19988_register_write16(priv, REG_REFLINE_MSB,
+ timing->vfront_porch.typ + 1);
+ tda19988_register_write16(priv, REG_NPIX_MSB, line_clocks);
+ tda19988_register_write16(priv, REG_NLINE_MSB, lines);
+ tda19988_register_write16(priv, REG_VS_LINE_STRT_1_MSB,
+ timing->vfront_porch.typ);
+ tda19988_register_write16(priv, REG_VS_PIX_STRT_1_MSB,
+ timing->hfront_porch.typ);
+ tda19988_register_write16(priv, REG_VS_LINE_END_1_MSB,
+ timing->vfront_porch.typ +
+ timing->vsync_len.typ);
+ tda19988_register_write16(priv, REG_VS_PIX_END_1_MSB,
+ timing->hfront_porch.typ);
+ tda19988_register_write16(priv, REG_VS_LINE_STRT_2_MSB, 0);
+ tda19988_register_write16(priv, REG_VS_PIX_STRT_2_MSB, 0);
+ tda19988_register_write16(priv, REG_VS_LINE_END_2_MSB, 0);
+ tda19988_register_write16(priv, REG_VS_PIX_END_2_MSB, 0);
+ tda19988_register_write16(priv, REG_HS_PIX_START_MSB,
+ timing->hfront_porch.typ);
+ tda19988_register_write16(priv, REG_HS_PIX_STOP_MSB,
+ timing->hfront_porch.typ +
+ timing->hsync_len.typ);
+ tda19988_register_write16(priv, REG_VWIN_START_1_MSB,
+ lines - timing->vactive.typ - 1);
+ tda19988_register_write16(priv, REG_VWIN_END_1_MSB, lines - 1);
+ tda19988_register_write16(priv, REG_VWIN_START_2_MSB, 0);
+ tda19988_register_write16(priv, REG_VWIN_END_2_MSB, 0);
+ tda19988_register_write16(priv, REG_DE_START_MSB,
+ line_clocks - timing->hactive.typ);
+ tda19988_register_write16(priv, REG_DE_STOP_MSB, line_clocks);
+
+ if (priv->revision == TDA19988) {
+ /* let incoming pixels fill the active space (if any) */
+ tda19988_register_write(priv, REG_ENABLE_SPACE, 0x00);
+ }
+
+ /*
+ * Always generate sync polarity relative to input sync and
+ * revert input stage toggled sync at output stage
+ */
+ reg = TBG_CNTRL_1_DWIN_DIS | TBG_CNTRL_1_TGL_EN;
+ if (timing->flags & DISPLAY_FLAGS_HSYNC_LOW)
+ reg |= TBG_CNTRL_1_H_TGL;
+ if (timing->flags & DISPLAY_FLAGS_VSYNC_LOW)
+ reg |= TBG_CNTRL_1_V_TGL;
+ tda19988_register_write(priv, REG_TBG_CNTRL_1, reg);
+
+ /* must be last register set: */
+ tda19988_register_write(priv, REG_TBG_CNTRL_0, 0);
+
+ /* turn on HDMI HDCP */
+ reg &= ~TBG_CNTRL_1_DWIN_DIS;
+ tda19988_register_write(priv, REG_TBG_CNTRL_1, reg);
+ tda19988_register_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
+ tda19988_register_set(priv, REG_TX33, TX33_HDMI);
+
+ mdelay(400);
+
+ /* enable video ports */
+ tda19988_register_write(priv, REG_ENA_VP_0, 0xff);
+ tda19988_register_write(priv, REG_ENA_VP_1, 0xff);
+ tda19988_register_write(priv, REG_ENA_VP_2, 0xff);
+ /* set muxing after enabling ports: */
+ tda19988_register_write(priv, REG_VIP_CNTRL_0,
+ VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3));
+ tda19988_register_write(priv, REG_VIP_CNTRL_1,
+ VIP_CNTRL_1_SWAP_C(4) | VIP_CNTRL_1_SWAP_D(5));
+ tda19988_register_write(priv, REG_VIP_CNTRL_2,
+ VIP_CNTRL_2_SWAP_E(0) | VIP_CNTRL_2_SWAP_F(1));
+
+ return 0;
+}
+
+struct dm_display_ops tda19988_ops = {
+ .read_edid = tda19988_read_edid,
+ .enable = tda19988_enable,
+};
+
+static const struct udevice_id tda19988_ids[] = {
+ { .compatible = "nxp,tda998x" },
+ { }
+};
+
+static int tda19988_probe(struct udevice *dev)
+{
+ u8 cec_addr, chip_addr, rev_lo, rev_hi;
+ int err;
+ struct tda19988_priv *priv = dev_get_priv(dev);
+
+ chip_addr = dev_read_addr(dev);
+ /* CEC I2C address is using TDA19988 I2C address configuration pins */
+ cec_addr = 0x34 + (chip_addr & 0x03);
+
+ err = i2c_get_chip_for_busnum(0, cec_addr, 1, &priv->cec_chip);
+ if (err) {
+ printf("cec i2c_get_chip_for_busnum returned %d\n", err);
+ return err;
+ }
+
+ err = i2c_get_chip_for_busnum(0, chip_addr, 1, &priv->chip);
+ if (err) {
+ printf("i2c_get_chip_for_busnum returned %d\n", err);
+ return err;
+ }
+
+ priv->current_page = 0xff;
+
+ /* wake up device */
+ dm_i2c_reg_write(priv->cec_chip, TDA19988_CEC_ENAMODS,
+ CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
+
+ /* reset audio and I2C master */
+ tda19988_register_write(priv, REG_SOFTRESET,
+ SOFTRESET_AUDIO | SOFTRESET_I2C_MASTER);
+ mdelay(50);
+ tda19988_register_write(priv, REG_SOFTRESET, 0);
+ mdelay(50);
+
+ /* reset transmitter */
+ tda19988_register_set(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
+ tda19988_register_clear(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
+
+ /* PLL registers common configuration */
+ tda19988_register_write(priv, REG_PLL_SERIAL_1, 0x00);
+ tda19988_register_write(priv, REG_PLL_SERIAL_2,
+ PLL_SERIAL_2_SRL_NOSC(1));
+ tda19988_register_write(priv, REG_PLL_SERIAL_3, 0x00);
+ tda19988_register_write(priv, REG_SERIALIZER, 0x00);
+ tda19988_register_write(priv, REG_BUFFER_OUT, 0x00);
+ tda19988_register_write(priv, REG_PLL_SCG1, 0x00);
+ tda19988_register_write(priv, REG_AUDIO_DIV, AUDIO_DIV_SERCLK_8);
+ tda19988_register_write(priv, REG_SEL_CLK,
+ SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
+ tda19988_register_write(priv, REG_PLL_SCGN1, 0xfa);
+ tda19988_register_write(priv, REG_PLL_SCGN2, 0x00);
+ tda19988_register_write(priv, REG_PLL_SCGR1, 0x5b);
+ tda19988_register_write(priv, REG_PLL_SCGR2, 0x00);
+ tda19988_register_write(priv, REG_PLL_SCG2, 0x10);
+
+ /* Write the default value MUX register */
+ tda19988_register_write(priv, REG_MUX_VP_VIP_OUT, 0x24);
+
+ /* read version */
+ rev_lo = dm_i2c_reg_read(priv->chip, REG_VERSION_LSB);
+ rev_hi = dm_i2c_reg_read(priv->chip, REG_VERSION_MSB);
+
+ /* mask off feature bits */
+ priv->revision = ((rev_hi << 8) | rev_lo) & ~0x30;
+
+ printf("HDMI: ");
+ switch (priv->revision) {
+ case TDA9989N2:
+ printf("TDA9989 n2\n");
+ break;
+ case TDA19989:
+ printf("TDA19989\n");
+ break;
+ case TDA19989N2:
+ printf("TDA19989 n2\n");
+ break;
+ case TDA19988:
+ printf("TDA19988\n");
+ break;
+ default:
+ printf("unknown TDA device: 0x%04x\n", priv->revision);
+ return -ENXIO;
+ }
+
+ /* after reset, enable DDC */
+ tda19988_register_write(priv, REG_DDC_DISABLE, 0x00);
+
+ /* set clock on DDC channel */
+ tda19988_register_write(priv, REG_TX3, 39);
+
+ /* if necessary, disable multi-master */
+ if (priv->revision == TDA19989)
+ tda19988_register_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
+
+ dm_i2c_reg_write(priv->cec_chip, REG_CEC_FRO_IM_CLK_CTRL,
+ CEC_FRO_IM_CLK_CTRL_GHOST_DIS |
+ CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
+ /* ensure interrupts are disabled */
+ dm_i2c_reg_write(priv->cec_chip, REG_CEC_RXSHPDINTENA, 0);
+ /* clear pending interrupts */
+ dm_i2c_reg_read(priv->cec_chip, REG_CEC_RXSHPDINT);
+ tda19988_register_read(priv, REG_INT_FLAGS_0);
+ tda19988_register_read(priv, REG_INT_FLAGS_1);
+ tda19988_register_read(priv, REG_INT_FLAGS_2);
+
+ /* enable EDID read irq */
+ tda19988_register_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
+
+ return 0;
+}
+
+U_BOOT_DRIVER(tda19988) = {
+ .name = "tda19988",
+ .id = UCLASS_DISPLAY,
+ .of_match = tda19988_ids,
+ .ops = &tda19988_ops,
+ .probe = tda19988_probe,
+ .priv_auto_alloc_size = sizeof(struct tda19988_priv),
+};
projects / oweals / u-boot.git / commitdiff