diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 202 |
1 files changed, 152 insertions, 50 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index 6928015d11a4..ba067bb767e3 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -42,8 +42,9 @@ struct tegra_hdmi { struct device *dev; bool enabled; - struct regulator *vdd; + struct regulator *hdmi; struct regulator *pll; + struct regulator *vdd; void __iomem *regs; unsigned int irq; @@ -317,6 +318,85 @@ static const struct tmds_config tegra114_tmds_config[] = { }, }; +static const struct tmds_config tegra124_tmds_config[] = { + { /* 480p/576p / 25.2MHz/27MHz modes */ + .pclk = 27000000, + .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | + SOR_PLL_VCOCAP(0) | SOR_PLL_RESISTORSEL, + .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(0), + .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) | + PE_CURRENT1(PE_CURRENT_0_mA_T114) | + PE_CURRENT2(PE_CURRENT_0_mA_T114) | + PE_CURRENT3(PE_CURRENT_0_mA_T114), + .drive_current = + DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) | + DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) | + DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) | + DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114), + .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), + }, { /* 720p / 74.25MHz modes */ + .pclk = 74250000, + .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | + SOR_PLL_VCOCAP(1) | SOR_PLL_RESISTORSEL, + .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) | + SOR_PLL_TMDS_TERMADJ(0), + .pe_current = PE_CURRENT0(PE_CURRENT_15_mA_T114) | + PE_CURRENT1(PE_CURRENT_15_mA_T114) | + PE_CURRENT2(PE_CURRENT_15_mA_T114) | + PE_CURRENT3(PE_CURRENT_15_mA_T114), + .drive_current = + DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) | + DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) | + DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) | + DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114), + .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), + }, { /* 1080p / 148.5MHz modes */ + .pclk = 148500000, + .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | + SOR_PLL_VCOCAP(3) | SOR_PLL_RESISTORSEL, + .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) | + SOR_PLL_TMDS_TERMADJ(0), + .pe_current = PE_CURRENT0(PE_CURRENT_10_mA_T114) | + PE_CURRENT1(PE_CURRENT_10_mA_T114) | + PE_CURRENT2(PE_CURRENT_10_mA_T114) | + PE_CURRENT3(PE_CURRENT_10_mA_T114), + .drive_current = + DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_12_400_mA_T114) | + DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_12_400_mA_T114) | + DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_12_400_mA_T114) | + DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_12_400_mA_T114), + .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) | + PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA), + }, { /* 225/297MHz modes */ + .pclk = UINT_MAX, + .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) | + SOR_PLL_VCOCAP(0xf) | SOR_PLL_RESISTORSEL, + .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(7) + | SOR_PLL_TMDS_TERM_ENABLE, + .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) | + PE_CURRENT1(PE_CURRENT_0_mA_T114) | + PE_CURRENT2(PE_CURRENT_0_mA_T114) | + PE_CURRENT3(PE_CURRENT_0_mA_T114), + .drive_current = + DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_25_200_mA_T114) | + DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_25_200_mA_T114) | + DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_25_200_mA_T114) | + DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_19_200_mA_T114), + .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_3_000_mA) | + PEAK_CURRENT_LANE1(PEAK_CURRENT_3_000_mA) | + PEAK_CURRENT_LANE2(PEAK_CURRENT_3_000_mA) | + PEAK_CURRENT_LANE3(PEAK_CURRENT_0_800_mA), + }, +}; + static const struct tegra_hdmi_audio_config * tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pclk) { @@ -716,13 +796,9 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) return err; } - /* - * This assumes that the display controller will divide its parent - * clock by 2 to generate the pixel clock. - */ - err = tegra_output_setup_clock(output, hdmi->clk, pclk * 2); + err = regulator_enable(hdmi->vdd); if (err < 0) { - dev_err(hdmi->dev, "failed to setup clock: %d\n", err); + dev_err(hdmi->dev, "failed to enable VDD regulator: %d\n", err); return err; } @@ -730,7 +806,7 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) if (err < 0) return err; - err = clk_enable(hdmi->clk); + err = clk_prepare_enable(hdmi->clk); if (err < 0) { dev_err(hdmi->dev, "failed to enable clock: %d\n", err); return err; @@ -740,6 +816,17 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) usleep_range(1000, 2000); reset_control_deassert(hdmi->rst); + /* power up sequence */ + value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0); + value &= ~SOR_PLL_PDBG; + tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0); + + usleep_range(10, 20); + + value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0); + value &= ~SOR_PLL_PWR; + tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0); + tegra_dc_writel(dc, VSYNC_H_POSITION(1), DC_DISP_DISP_TIMING_OPTIONS); tegra_dc_writel(dc, DITHER_CONTROL_DISABLE | BASE_COLOR_SIZE888, @@ -838,9 +925,13 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(0)); tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(8)); - value = 0x1c800; + value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_CSTM); value &= ~SOR_CSTM_ROTCLK(~0); value |= SOR_CSTM_ROTCLK(2); + value |= SOR_CSTM_PLLDIV; + value &= ~SOR_CSTM_LVDS_ENABLE; + value &= ~SOR_CSTM_MODE_MASK; + value |= SOR_CSTM_MODE_TMDS; tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_CSTM); /* start SOR */ @@ -930,10 +1021,18 @@ static int tegra_output_hdmi_disable(struct tegra_output *output) * sure it's only executed when the output is attached to one. */ if (dc) { + /* + * XXX: We can't do this here because it causes HDMI to go + * into an erroneous state with the result that HDMI won't + * properly work once disabled. See also a similar symptom + * for the SOR output. + */ + /* value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL); value &= ~(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE | PW4_ENABLE | PM0_ENABLE | PM1_ENABLE); tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL); + */ value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND); value &= ~DISP_CTRL_MODE_MASK; @@ -947,8 +1046,9 @@ static int tegra_output_hdmi_disable(struct tegra_output *output) tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL); } + clk_disable_unprepare(hdmi->clk); reset_control_assert(hdmi->rst); - clk_disable(hdmi->clk); + regulator_disable(hdmi->vdd); regulator_disable(hdmi->pll); hdmi->enabled = false; @@ -957,10 +1057,10 @@ static int tegra_output_hdmi_disable(struct tegra_output *output) } static int tegra_output_hdmi_setup_clock(struct tegra_output *output, - struct clk *clk, unsigned long pclk) + struct clk *clk, unsigned long pclk, + unsigned int *div) { struct tegra_hdmi *hdmi = to_hdmi(output); - struct clk *base; int err; err = clk_set_parent(clk, hdmi->clk_parent); @@ -969,17 +1069,12 @@ static int tegra_output_hdmi_setup_clock(struct tegra_output *output, return err; } - base = clk_get_parent(hdmi->clk_parent); - - /* - * This assumes that the parent clock is pll_d_out0 or pll_d2_out - * respectively, each of which divides the base pll_d by 2. - */ - err = clk_set_rate(base, pclk * 2); + err = clk_set_rate(hdmi->clk_parent, pclk); if (err < 0) - dev_err(output->dev, - "failed to set base clock rate to %lu Hz\n", - pclk * 2); + dev_err(output->dev, "failed to set clock rate to %lu Hz\n", + pclk); + + *div = 0; return 0; } @@ -1017,7 +1112,7 @@ static int tegra_hdmi_show_regs(struct seq_file *s, void *data) struct tegra_hdmi *hdmi = node->info_ent->data; int err; - err = clk_enable(hdmi->clk); + err = clk_prepare_enable(hdmi->clk); if (err) return err; @@ -1186,7 +1281,7 @@ static int tegra_hdmi_show_regs(struct seq_file *s, void *data) #undef DUMP_REG - clk_disable(hdmi->clk); + clk_disable_unprepare(hdmi->clk); return 0; } @@ -1252,33 +1347,33 @@ static int tegra_hdmi_debugfs_exit(struct tegra_hdmi *hdmi) static int tegra_hdmi_init(struct host1x_client *client) { - struct tegra_drm *tegra = dev_get_drvdata(client->parent); + struct drm_device *drm = dev_get_drvdata(client->parent); struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); int err; - err = regulator_enable(hdmi->vdd); - if (err < 0) { - dev_err(client->dev, "failed to enable VDD regulator: %d\n", - err); - return err; - } - hdmi->output.type = TEGRA_OUTPUT_HDMI; hdmi->output.dev = client->dev; hdmi->output.ops = &hdmi_ops; - err = tegra_output_init(tegra->drm, &hdmi->output); + err = tegra_output_init(drm, &hdmi->output); if (err < 0) { dev_err(client->dev, "output setup failed: %d\n", err); return err; } if (IS_ENABLED(CONFIG_DEBUG_FS)) { - err = tegra_hdmi_debugfs_init(hdmi, tegra->drm->primary); + err = tegra_hdmi_debugfs_init(hdmi, drm->primary); if (err < 0) dev_err(client->dev, "debugfs setup failed: %d\n", err); } + err = regulator_enable(hdmi->hdmi); + if (err < 0) { + dev_err(client->dev, "failed to enable HDMI regulator: %d\n", + err); + return err; + } + return 0; } @@ -1287,6 +1382,8 @@ static int tegra_hdmi_exit(struct host1x_client *client) struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); int err; + regulator_disable(hdmi->hdmi); + if (IS_ENABLED(CONFIG_DEBUG_FS)) { err = tegra_hdmi_debugfs_exit(hdmi); if (err < 0) @@ -1306,8 +1403,6 @@ static int tegra_hdmi_exit(struct host1x_client *client) return err; } - regulator_disable(hdmi->vdd); - return 0; } @@ -1340,7 +1435,16 @@ static const struct tegra_hdmi_config tegra114_hdmi_config = { .has_sor_io_peak_current = true, }; +static const struct tegra_hdmi_config tegra124_hdmi_config = { + .tmds = tegra124_tmds_config, + .num_tmds = ARRAY_SIZE(tegra124_tmds_config), + .fuse_override_offset = HDMI_NV_PDISP_SOR_PAD_CTLS0, + .fuse_override_value = 1 << 31, + .has_sor_io_peak_current = true, +}; + static const struct of_device_id tegra_hdmi_of_match[] = { + { .compatible = "nvidia,tegra124-hdmi", .data = &tegra124_hdmi_config }, { .compatible = "nvidia,tegra114-hdmi", .data = &tegra114_hdmi_config }, { .compatible = "nvidia,tegra30-hdmi", .data = &tegra30_hdmi_config }, { .compatible = "nvidia,tegra20-hdmi", .data = &tegra20_hdmi_config }, @@ -1381,28 +1485,20 @@ static int tegra_hdmi_probe(struct platform_device *pdev) return PTR_ERR(hdmi->rst); } - err = clk_prepare(hdmi->clk); - if (err < 0) - return err; - hdmi->clk_parent = devm_clk_get(&pdev->dev, "parent"); if (IS_ERR(hdmi->clk_parent)) return PTR_ERR(hdmi->clk_parent); - err = clk_prepare(hdmi->clk_parent); - if (err < 0) - return err; - err = clk_set_parent(hdmi->clk, hdmi->clk_parent); if (err < 0) { dev_err(&pdev->dev, "failed to setup clocks: %d\n", err); return err; } - hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd"); - if (IS_ERR(hdmi->vdd)) { - dev_err(&pdev->dev, "failed to get VDD regulator\n"); - return PTR_ERR(hdmi->vdd); + hdmi->hdmi = devm_regulator_get(&pdev->dev, "hdmi"); + if (IS_ERR(hdmi->hdmi)) { + dev_err(&pdev->dev, "failed to get HDMI regulator\n"); + return PTR_ERR(hdmi->hdmi); } hdmi->pll = devm_regulator_get(&pdev->dev, "pll"); @@ -1411,6 +1507,12 @@ static int tegra_hdmi_probe(struct platform_device *pdev) return PTR_ERR(hdmi->pll); } + hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd"); + if (IS_ERR(hdmi->vdd)) { + dev_err(&pdev->dev, "failed to get VDD regulator\n"); + return PTR_ERR(hdmi->vdd); + } + hdmi->output.dev = &pdev->dev; err = tegra_output_probe(&hdmi->output); @@ -1462,8 +1564,8 @@ static int tegra_hdmi_remove(struct platform_device *pdev) return err; } - clk_unprepare(hdmi->clk_parent); - clk_unprepare(hdmi->clk); + clk_disable_unprepare(hdmi->clk_parent); + clk_disable_unprepare(hdmi->clk); return 0; } |