From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Sep 2015 01:01:14 -0300 Subject: Linux-libre 4.2-gnu --- drivers/gpu/drm/msm/dsi/dsi_host.c | 120 +++++++++++++++++++++---------------- 1 file changed, 67 insertions(+), 53 deletions(-) (limited to 'drivers/gpu/drm/msm/dsi/dsi_host.c') diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 649d20d29..de0400923 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -36,35 +37,19 @@ #define DSI_6G_REG_SHIFT 4 -#define DSI_REGULATOR_MAX 8 -struct dsi_reg_entry { - char name[32]; - int min_voltage; - int max_voltage; - int enable_load; - int disable_load; -}; - -struct dsi_reg_config { - int num; - struct dsi_reg_entry regs[DSI_REGULATOR_MAX]; -}; - struct dsi_config { u32 major; u32 minor; u32 io_offset; - enum msm_dsi_phy_type phy_type; struct dsi_reg_config reg_cfg; }; static const struct dsi_config dsi_cfgs[] = { - {MSM_DSI_VER_MAJOR_V2, 0, 0, MSM_DSI_PHY_UNKNOWN}, + {MSM_DSI_VER_MAJOR_V2, 0, 0, {0,} }, { /* 8974 v1 */ .major = MSM_DSI_VER_MAJOR_6G, .minor = MSM_DSI_6G_VER_MINOR_V1_0, .io_offset = DSI_6G_REG_SHIFT, - .phy_type = MSM_DSI_PHY_28NM, .reg_cfg = { .num = 4, .regs = { @@ -79,7 +64,6 @@ static const struct dsi_config dsi_cfgs[] = { .major = MSM_DSI_VER_MAJOR_6G, .minor = MSM_DSI_6G_VER_MINOR_V1_1, .io_offset = DSI_6G_REG_SHIFT, - .phy_type = MSM_DSI_PHY_28NM, .reg_cfg = { .num = 4, .regs = { @@ -94,7 +78,6 @@ static const struct dsi_config dsi_cfgs[] = { .major = MSM_DSI_VER_MAJOR_6G, .minor = MSM_DSI_6G_VER_MINOR_V1_1_1, .io_offset = DSI_6G_REG_SHIFT, - .phy_type = MSM_DSI_PHY_28NM, .reg_cfg = { .num = 4, .regs = { @@ -109,7 +92,6 @@ static const struct dsi_config dsi_cfgs[] = { .major = MSM_DSI_VER_MAJOR_6G, .minor = MSM_DSI_6G_VER_MINOR_V1_2, .io_offset = DSI_6G_REG_SHIFT, - .phy_type = MSM_DSI_PHY_28NM, .reg_cfg = { .num = 4, .regs = { @@ -124,7 +106,6 @@ static const struct dsi_config dsi_cfgs[] = { .major = MSM_DSI_VER_MAJOR_6G, .minor = MSM_DSI_6G_VER_MINOR_V1_3_1, .io_offset = DSI_6G_REG_SHIFT, - .phy_type = MSM_DSI_PHY_28NM, .reg_cfg = { .num = 4, .regs = { @@ -197,7 +178,7 @@ struct msm_dsi_host { int id; void __iomem *ctrl_base; - struct regulator_bulk_data supplies[DSI_REGULATOR_MAX]; + struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX]; struct clk *mdp_core_clk; struct clk *ahb_clk; struct clk *axi_clk; @@ -205,6 +186,9 @@ struct msm_dsi_host { struct clk *byte_clk; struct clk *esc_clk; struct clk *pixel_clk; + struct clk *byte_clk_src; + struct clk *pixel_clk_src; + u32 byte_clk_rate; struct gpio_desc *disp_en_gpio; @@ -273,7 +257,7 @@ static const struct dsi_config *dsi_get_config(struct msm_dsi_host *msm_host) u32 major = 0, minor = 0; gdsc_reg = regulator_get(&msm_host->pdev->dev, "gdsc"); - if (IS_ERR_OR_NULL(gdsc_reg)) { + if (IS_ERR(gdsc_reg)) { pr_err("%s: cannot get gdsc\n", __func__); goto fail; } @@ -463,6 +447,22 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host) goto exit; } + msm_host->byte_clk_src = devm_clk_get(dev, "byte_clk_src"); + if (IS_ERR(msm_host->byte_clk_src)) { + ret = PTR_ERR(msm_host->byte_clk_src); + pr_err("%s: can't find byte_clk_src. ret=%d\n", __func__, ret); + msm_host->byte_clk_src = NULL; + goto exit; + } + + msm_host->pixel_clk_src = devm_clk_get(dev, "pixel_clk_src"); + if (IS_ERR(msm_host->pixel_clk_src)) { + ret = PTR_ERR(msm_host->pixel_clk_src); + pr_err("%s: can't find pixel_clk_src. ret=%d\n", __func__, ret); + msm_host->pixel_clk_src = NULL; + goto exit; + } + exit: return ret; } @@ -787,6 +787,11 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable, dsi_write(msm_host, REG_DSI_LANE_SWAP_CTRL, DSI_LANE_SWAP_CTRL_DLN_SWAP_SEL(LANE_SWAP_0123)); } + + if (!(flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)) + dsi_write(msm_host, REG_DSI_LANE_CTRL, + DSI_LANE_CTRL_CLKLN_HS_FORCE_REQUEST); + data |= DSI_CTRL_ENABLE; dsi_write(msm_host, REG_DSI_CTRL, data); @@ -1345,36 +1350,19 @@ static irqreturn_t dsi_host_irq(int irq, void *ptr) static int dsi_host_init_panel_gpios(struct msm_dsi_host *msm_host, struct device *panel_device) { - int ret; - - msm_host->disp_en_gpio = devm_gpiod_get(panel_device, - "disp-enable"); + msm_host->disp_en_gpio = devm_gpiod_get_optional(panel_device, + "disp-enable", + GPIOD_OUT_LOW); if (IS_ERR(msm_host->disp_en_gpio)) { DBG("cannot get disp-enable-gpios %ld", PTR_ERR(msm_host->disp_en_gpio)); - msm_host->disp_en_gpio = NULL; - } - if (msm_host->disp_en_gpio) { - ret = gpiod_direction_output(msm_host->disp_en_gpio, 0); - if (ret) { - pr_err("cannot set dir to disp-en-gpios %d\n", ret); - return ret; - } + return PTR_ERR(msm_host->disp_en_gpio); } - msm_host->te_gpio = devm_gpiod_get(panel_device, "disp-te"); + msm_host->te_gpio = devm_gpiod_get(panel_device, "disp-te", GPIOD_IN); if (IS_ERR(msm_host->te_gpio)) { DBG("cannot get disp-te-gpios %ld", PTR_ERR(msm_host->te_gpio)); - msm_host->te_gpio = NULL; - } - - if (msm_host->te_gpio) { - ret = gpiod_direction_input(msm_host->te_gpio); - if (ret) { - pr_err("%s: cannot set dir to disp-te-gpios, %d\n", - __func__, ret); - return ret; - } + return PTR_ERR(msm_host->te_gpio); } return 0; @@ -1508,13 +1496,6 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi) msm_host->workqueue = alloc_ordered_workqueue("dsi_drm_work", 0); INIT_WORK(&msm_host->err_work, dsi_err_worker); - msm_dsi->phy = msm_dsi_phy_init(pdev, msm_host->cfg->phy_type, - msm_host->id); - if (!msm_dsi->phy) { - ret = -EINVAL; - pr_err("%s: phy init failed\n", __func__); - goto fail; - } msm_dsi->host = &msm_host->base; msm_dsi->id = msm_host->id; @@ -1824,6 +1805,39 @@ void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, u32 iova, u32 len) wmb(); } +int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, + struct msm_dsi_pll *src_pll) +{ + struct msm_dsi_host *msm_host = to_msm_dsi_host(host); + struct clk *byte_clk_provider, *pixel_clk_provider; + int ret; + + ret = msm_dsi_pll_get_clk_provider(src_pll, + &byte_clk_provider, &pixel_clk_provider); + if (ret) { + pr_info("%s: can't get provider from pll, don't set parent\n", + __func__); + return 0; + } + + ret = clk_set_parent(msm_host->byte_clk_src, byte_clk_provider); + if (ret) { + pr_err("%s: can't set parent to byte_clk_src. ret=%d\n", + __func__, ret); + goto exit; + } + + ret = clk_set_parent(msm_host->pixel_clk_src, pixel_clk_provider); + if (ret) { + pr_err("%s: can't set parent to pixel_clk_src. ret=%d\n", + __func__, ret); + goto exit; + } + +exit: + return ret; +} + int msm_dsi_host_enable(struct mipi_dsi_host *host) { struct msm_dsi_host *msm_host = to_msm_dsi_host(host); -- cgit v1.2.3-54-g00ecf