| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jitao Shi | 1119 | 100.00% | 1 | 100.00% |
| Total | 1119 | 1 |
// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2019 MediaTek Inc. * Author: jitao.shi <jitao.shi@mediatek.com> */ #include "mtk_mipi_tx.h" #define MIPITX_DSI_CON 0x00 #define RG_DSI_LDOCORE_EN BIT(0) #define RG_DSI_CKG_LDOOUT_EN BIT(1) #define RG_DSI_BCLK_SEL (3 << 2) #define RG_DSI_LD_IDX_SEL (7 << 4) #define RG_DSI_PHYCLK_SEL (2 << 8) #define RG_DSI_DSICLK_FREQ_SEL BIT(10) #define RG_DSI_LPTX_CLMP_EN BIT(11) #define MIPITX_DSI_CLOCK_LANE 0x04 #define MIPITX_DSI_DATA_LANE0 0x08 #define MIPITX_DSI_DATA_LANE1 0x0c #define MIPITX_DSI_DATA_LANE2 0x10 #define MIPITX_DSI_DATA_LANE3 0x14 #define RG_DSI_LNTx_LDOOUT_EN BIT(0) #define RG_DSI_LNTx_CKLANE_EN BIT(1) #define RG_DSI_LNTx_LPTX_IPLUS1 BIT(2) #define RG_DSI_LNTx_LPTX_IPLUS2 BIT(3) #define RG_DSI_LNTx_LPTX_IMINUS BIT(4) #define RG_DSI_LNTx_LPCD_IPLUS BIT(5) #define RG_DSI_LNTx_LPCD_IMINUS BIT(6) #define RG_DSI_LNTx_RT_CODE (0xf << 8) #define MIPITX_DSI_TOP_CON 0x40 #define RG_DSI_LNT_INTR_EN BIT(0) #define RG_DSI_LNT_HS_BIAS_EN BIT(1) #define RG_DSI_LNT_IMP_CAL_EN BIT(2) #define RG_DSI_LNT_TESTMODE_EN BIT(3) #define RG_DSI_LNT_IMP_CAL_CODE (0xf << 4) #define RG_DSI_LNT_AIO_SEL (7 << 8) #define RG_DSI_PAD_TIE_LOW_EN BIT(11) #define RG_DSI_DEBUG_INPUT_EN BIT(12) #define RG_DSI_PRESERVE (7 << 13) #define MIPITX_DSI_BG_CON 0x44 #define RG_DSI_BG_CORE_EN BIT(0) #define RG_DSI_BG_CKEN BIT(1) #define RG_DSI_BG_DIV (0x3 << 2) #define RG_DSI_BG_FAST_CHARGE BIT(4) #define RG_DSI_VOUT_MSK (0x3ffff << 5) #define RG_DSI_V12_SEL (7 << 5) #define RG_DSI_V10_SEL (7 << 8) #define RG_DSI_V072_SEL (7 << 11) #define RG_DSI_V04_SEL (7 << 14) #define RG_DSI_V032_SEL (7 << 17) #define RG_DSI_V02_SEL (7 << 20) #define RG_DSI_BG_R1_TRIM (0xf << 24) #define RG_DSI_BG_R2_TRIM (0xf << 28) #define MIPITX_DSI_PLL_CON0 0x50 #define RG_DSI_MPPLL_PLL_EN BIT(0) #define RG_DSI_MPPLL_DIV_MSK (0x1ff << 1) #define RG_DSI_MPPLL_PREDIV (3 << 1) #define RG_DSI_MPPLL_TXDIV0 (3 << 3) #define RG_DSI_MPPLL_TXDIV1 (3 << 5) #define RG_DSI_MPPLL_POSDIV (7 << 7) #define RG_DSI_MPPLL_MONVC_EN BIT(10) #define RG_DSI_MPPLL_MONREF_EN BIT(11) #define RG_DSI_MPPLL_VOD_EN BIT(12) #define MIPITX_DSI_PLL_CON1 0x54 #define RG_DSI_MPPLL_SDM_FRA_EN BIT(0) #define RG_DSI_MPPLL_SDM_SSC_PH_INIT BIT(1) #define RG_DSI_MPPLL_SDM_SSC_EN BIT(2) #define RG_DSI_MPPLL_SDM_SSC_PRD (0xffff << 16) #define MIPITX_DSI_PLL_CON2 0x58 #define MIPITX_DSI_PLL_TOP 0x64 #define RG_DSI_MPPLL_PRESERVE (0xff << 8) #define MIPITX_DSI_PLL_PWR 0x68 #define RG_DSI_MPPLL_SDM_PWR_ON BIT(0) #define RG_DSI_MPPLL_SDM_ISO_EN BIT(1) #define RG_DSI_MPPLL_SDM_PWR_ACK BIT(8) #define MIPITX_DSI_SW_CTRL 0x80 #define SW_CTRL_EN BIT(0) #define MIPITX_DSI_SW_CTRL_CON0 0x84 #define SW_LNTC_LPTX_PRE_OE BIT(0) #define SW_LNTC_LPTX_OE BIT(1) #define SW_LNTC_LPTX_P BIT(2) #define SW_LNTC_LPTX_N BIT(3) #define SW_LNTC_HSTX_PRE_OE BIT(4) #define SW_LNTC_HSTX_OE BIT(5) #define SW_LNTC_HSTX_ZEROCLK BIT(6) #define SW_LNT0_LPTX_PRE_OE BIT(7) #define SW_LNT0_LPTX_OE BIT(8) #define SW_LNT0_LPTX_P BIT(9) #define SW_LNT0_LPTX_N BIT(10) #define SW_LNT0_HSTX_PRE_OE BIT(11) #define SW_LNT0_HSTX_OE BIT(12) #define SW_LNT0_LPRX_EN BIT(13) #define SW_LNT1_LPTX_PRE_OE BIT(14) #define SW_LNT1_LPTX_OE BIT(15) #define SW_LNT1_LPTX_P BIT(16) #define SW_LNT1_LPTX_N BIT(17) #define SW_LNT1_HSTX_PRE_OE BIT(18) #define SW_LNT1_HSTX_OE BIT(19) #define SW_LNT2_LPTX_PRE_OE BIT(20) #define SW_LNT2_LPTX_OE BIT(21) #define SW_LNT2_LPTX_P BIT(22) #define SW_LNT2_LPTX_N BIT(23) #define SW_LNT2_HSTX_PRE_OE BIT(24) #define SW_LNT2_HSTX_OE BIT(25) static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw) { struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw); u8 txdiv, txdiv0, txdiv1; u64 pcw; dev_dbg(mipi_tx->dev, "prepare: %u Hz\n", mipi_tx->data_rate); if (mipi_tx->data_rate >= 500000000) { txdiv = 1; txdiv0 = 0; txdiv1 = 0; } else if (mipi_tx->data_rate >= 250000000) { txdiv = 2; txdiv0 = 1; txdiv1 = 0; } else if (mipi_tx->data_rate >= 125000000) { txdiv = 4; txdiv0 = 2; txdiv1 = 0; } else if (mipi_tx->data_rate > 62000000) { txdiv = 8; txdiv0 = 2; txdiv1 = 1; } else if (mipi_tx->data_rate >= 50000000) { txdiv = 16; txdiv0 = 2; txdiv1 = 2; } else { return -EINVAL; } mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_BG_CON, RG_DSI_VOUT_MSK | RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN, (4 << 20) | (4 << 17) | (4 << 14) | (4 << 11) | (4 << 8) | (4 << 5) | RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN); usleep_range(30, 100); mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_TOP_CON, RG_DSI_LNT_IMP_CAL_CODE | RG_DSI_LNT_HS_BIAS_EN, (8 << 4) | RG_DSI_LNT_HS_BIAS_EN); mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_CON, RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN); mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_PWR, RG_DSI_MPPLL_SDM_PWR_ON | RG_DSI_MPPLL_SDM_ISO_EN, RG_DSI_MPPLL_SDM_PWR_ON); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN); mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_TXDIV0 | RG_DSI_MPPLL_TXDIV1 | RG_DSI_MPPLL_PREDIV, (txdiv0 << 3) | (txdiv1 << 5)); /* * PLL PCW config * PCW bit 24~30 = integer part of pcw * PCW bit 0~23 = fractional part of pcw * pcw = data_Rate*4*txdiv/(Ref_clk*2); * Post DIV =4, so need data_Rate*4 * Ref_clk is 26MHz */ pcw = div_u64(((u64)mipi_tx->data_rate * 2 * txdiv) << 24, 26000000); writel(pcw, mipi_tx->regs + MIPITX_DSI_PLL_CON2); mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_PLL_CON1, RG_DSI_MPPLL_SDM_FRA_EN); mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN); usleep_range(20, 100); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON1, RG_DSI_MPPLL_SDM_SSC_EN); mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP, RG_DSI_MPPLL_PRESERVE, mipi_tx->driver_data->mppll_preserve); return 0; } static void mtk_mipi_tx_pll_unprepare(struct clk_hw *hw) { struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw); dev_dbg(mipi_tx->dev, "unprepare\n"); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN); mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP, RG_DSI_MPPLL_PRESERVE, 0); mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_PWR, RG_DSI_MPPLL_SDM_ISO_EN | RG_DSI_MPPLL_SDM_PWR_ON, RG_DSI_MPPLL_SDM_ISO_EN); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON, RG_DSI_LNT_HS_BIAS_EN); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_CON, RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_BG_CON, RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_DIV_MSK); } static long mtk_mipi_tx_pll_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *prate) { return clamp_val(rate, 50000000, 1250000000); } static const struct clk_ops mtk_mipi_tx_pll_ops = { .prepare = mtk_mipi_tx_pll_prepare, .unprepare = mtk_mipi_tx_pll_unprepare, .round_rate = mtk_mipi_tx_pll_round_rate, .set_rate = mtk_mipi_tx_pll_set_rate, .recalc_rate = mtk_mipi_tx_pll_recalc_rate, }; static void mtk_mipi_tx_power_on_signal(struct phy *phy) { struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy); u32 reg; for (reg = MIPITX_DSI_CLOCK_LANE; reg <= MIPITX_DSI_DATA_LANE3; reg += 4) mtk_mipi_tx_set_bits(mipi_tx, reg, RG_DSI_LNTx_LDOOUT_EN); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON, RG_DSI_PAD_TIE_LOW_EN); } static void mtk_mipi_tx_power_off_signal(struct phy *phy) { struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy); u32 reg; mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_TOP_CON, RG_DSI_PAD_TIE_LOW_EN); for (reg = MIPITX_DSI_CLOCK_LANE; reg <= MIPITX_DSI_DATA_LANE3; reg += 4) mtk_mipi_tx_clear_bits(mipi_tx, reg, RG_DSI_LNTx_LDOOUT_EN); } const struct mtk_mipitx_data mt2701_mipitx_data = { .mppll_preserve = (3 << 8), .mipi_tx_clk_ops = &mtk_mipi_tx_pll_ops, .mipi_tx_enable_signal = mtk_mipi_tx_power_on_signal, .mipi_tx_disable_signal = mtk_mipi_tx_power_off_signal, }; const struct mtk_mipitx_data mt8173_mipitx_data = { .mppll_preserve = (0 << 8), .mipi_tx_clk_ops = &mtk_mipi_tx_pll_ops, .mipi_tx_enable_signal = mtk_mipi_tx_power_on_signal, .mipi_tx_disable_signal = mtk_mipi_tx_power_off_signal, };
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