diff options
| -rw-r--r-- | drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 51 | ||||
| -rw-r--r-- | drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h | 2 |
2 files changed, 38 insertions, 15 deletions
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c index b08274e5dfcf..85074e0c3cc4 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c @@ -34,10 +34,23 @@ #define RZG2L_DCS_BUF_SIZE 128 /* Maximum DCS buffer size in external memory. */ +struct rzg2l_mipi_dsi; + +struct rzg2l_mipi_dsi_hw_info { + int (*dphy_init)(struct rzg2l_mipi_dsi *dsi, unsigned long hsfreq); + void (*dphy_exit)(struct rzg2l_mipi_dsi *dsi); + u32 phy_reg_offset; + u32 link_reg_offset; + unsigned long min_dclk; + unsigned long max_dclk; +}; + struct rzg2l_mipi_dsi { struct device *dev; void __iomem *mmio; + const struct rzg2l_mipi_dsi_hw_info *info; + struct reset_control *rstc; struct reset_control *arstc; struct reset_control *prstc; @@ -174,22 +187,22 @@ static const struct rzg2l_mipi_dsi_timings rzg2l_mipi_dsi_global_timings[] = { static void rzg2l_mipi_dsi_phy_write(struct rzg2l_mipi_dsi *dsi, u32 reg, u32 data) { - iowrite32(data, dsi->mmio + reg); + iowrite32(data, dsi->mmio + dsi->info->phy_reg_offset + reg); } static void rzg2l_mipi_dsi_link_write(struct rzg2l_mipi_dsi *dsi, u32 reg, u32 data) { - iowrite32(data, dsi->mmio + LINK_REG_OFFSET + reg); + iowrite32(data, dsi->mmio + dsi->info->link_reg_offset + reg); } static u32 rzg2l_mipi_dsi_phy_read(struct rzg2l_mipi_dsi *dsi, u32 reg) { - return ioread32(dsi->mmio + reg); + return ioread32(dsi->mmio + dsi->info->phy_reg_offset + reg); } static u32 rzg2l_mipi_dsi_link_read(struct rzg2l_mipi_dsi *dsi, u32 reg) { - return ioread32(dsi->mmio + LINK_REG_OFFSET + reg); + return ioread32(dsi->mmio + dsi->info->link_reg_offset + reg); } /* ----------------------------------------------------------------------------- @@ -305,7 +318,7 @@ static int rzg2l_mipi_dsi_startup(struct rzg2l_mipi_dsi *dsi, bpp = mipi_dsi_pixel_format_to_bpp(dsi->format); hsfreq = DIV_ROUND_CLOSEST_ULL(vclk_rate * bpp, dsi->lanes); - ret = rzg2l_mipi_dsi_dphy_init(dsi, hsfreq); + ret = dsi->info->dphy_init(dsi, hsfreq); if (ret < 0) goto err_phy; @@ -357,7 +370,7 @@ static int rzg2l_mipi_dsi_startup(struct rzg2l_mipi_dsi *dsi, return 0; err_phy: - rzg2l_mipi_dsi_dphy_exit(dsi); + dsi->info->dphy_exit(dsi); pm_runtime_put(dsi->dev); return ret; @@ -365,7 +378,7 @@ err_phy: static void rzg2l_mipi_dsi_stop(struct rzg2l_mipi_dsi *dsi) { - rzg2l_mipi_dsi_dphy_exit(dsi); + dsi->info->dphy_exit(dsi); pm_runtime_put(dsi->dev); } @@ -615,10 +628,12 @@ rzg2l_mipi_dsi_bridge_mode_valid(struct drm_bridge *bridge, const struct drm_display_info *info, const struct drm_display_mode *mode) { - if (mode->clock > 148500) + struct rzg2l_mipi_dsi *dsi = bridge_to_rzg2l_mipi_dsi(bridge); + + if (mode->clock > dsi->info->max_dclk) return MODE_CLOCK_HIGH; - if (mode->clock < 5803) + if (mode->clock < dsi->info->min_dclk) return MODE_CLOCK_LOW; return MODE_OK; @@ -905,6 +920,8 @@ static int rzg2l_mipi_dsi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dsi); dsi->dev = &pdev->dev; + dsi->info = of_device_get_match_data(&pdev->dev); + ret = drm_of_get_data_lanes_count_ep(dsi->dev->of_node, 1, 0, 1, 4); if (ret < 0) return dev_err_probe(dsi->dev, ret, @@ -948,13 +965,13 @@ static int rzg2l_mipi_dsi_probe(struct platform_device *pdev) * mode->clock and format are not available. So initialize DPHY with * timing parameters for 80Mbps. */ - ret = rzg2l_mipi_dsi_dphy_init(dsi, 80000000); + ret = dsi->info->dphy_init(dsi, 80000000); if (ret < 0) goto err_phy; txsetr = rzg2l_mipi_dsi_link_read(dsi, TXSETR); dsi->num_data_lanes = min(((txsetr >> 16) & 3) + 1, num_data_lanes); - rzg2l_mipi_dsi_dphy_exit(dsi); + dsi->info->dphy_exit(dsi); pm_runtime_put(dsi->dev); /* Initialize the DRM bridge. */ @@ -975,7 +992,7 @@ static int rzg2l_mipi_dsi_probe(struct platform_device *pdev) return 0; err_phy: - rzg2l_mipi_dsi_dphy_exit(dsi); + dsi->info->dphy_exit(dsi); pm_runtime_put(dsi->dev); err_pm_disable: pm_runtime_disable(dsi->dev); @@ -992,8 +1009,16 @@ static void rzg2l_mipi_dsi_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); } +static const struct rzg2l_mipi_dsi_hw_info rzg2l_mipi_dsi_info = { + .dphy_init = rzg2l_mipi_dsi_dphy_init, + .dphy_exit = rzg2l_mipi_dsi_dphy_exit, + .link_reg_offset = 0x10000, + .min_dclk = 5803, + .max_dclk = 148500, +}; + static const struct of_device_id rzg2l_mipi_dsi_of_table[] = { - { .compatible = "renesas,rzg2l-mipi-dsi" }, + { .compatible = "renesas,rzg2l-mipi-dsi", .data = &rzg2l_mipi_dsi_info, }, { /* sentinel */ } }; diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h index 26d8a37ee635..d8082a87d874 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi_regs.h @@ -41,8 +41,6 @@ #define DSIDPHYTIM3_THS_ZERO(x) ((x) << 0) /* --------------------------------------------------------*/ -/* Link Registers */ -#define LINK_REG_OFFSET 0x10000 /* Link Status Register */ #define LINKSR 0x10 |