diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
commit | dc50eab76b709d68175a358d6e23a5a3890764d3 (patch) | |
tree | c754d0390db060af0213ff994f0ac310e4cfd6e9 /drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c | |
parent | Adding debian version 6.6.15-2. (diff) | |
download | linux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip |
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c')
-rw-r--r-- | drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c | 185 |
1 files changed, 85 insertions, 100 deletions
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c index 30493ce874..e83c3e5225 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c @@ -11,13 +11,17 @@ #include <linux/io.h> #include <linux/mm.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> +#include <drm/drm_atomic_helper.h> #include <drm/drm_drv.h> #include <drm/drm_fbdev_generic.h> #include <drm/drm_gem_dma_helper.h> +#include <drm/drm_modeset_helper.h> #include <drm/drm_module.h> #include <drm/drm_probe_helper.h> #include <drm/drm_vblank.h> @@ -31,57 +35,23 @@ * Hardware initialization */ -static int shmob_drm_init_interface(struct shmob_drm_device *sdev) -{ - static const u32 ldmt1r[] = { - [SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8, - [SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9, - [SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A, - [SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B, - [SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16, - [SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18, - [SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24, - [SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR, - [SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A, - [SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B, - [SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C, - [SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D, - [SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9, - [SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12, - [SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A, - [SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B, - [SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C, - [SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18, - [SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24, - }; - - if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) { - dev_err(sdev->dev, "invalid interface type %u\n", - sdev->pdata->iface.interface); - return -EINVAL; - } - - sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface]; - return 0; -} - static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev, - enum shmob_drm_clk_source clksrc) + enum shmob_drm_clk_source clksrc) { struct clk *clk; char *clkname; switch (clksrc) { case SHMOB_DRM_CLK_BUS: - clkname = "bus_clk"; + clkname = "fck"; sdev->lddckr = LDDCKR_ICKSEL_BUS; break; case SHMOB_DRM_CLK_PERIPHERAL: - clkname = "peripheral_clk"; + clkname = "media"; sdev->lddckr = LDDCKR_ICKSEL_MIPI; break; case SHMOB_DRM_CLK_EXTERNAL: - clkname = NULL; + clkname = "lclk"; sdev->lddckr = LDDCKR_ICKSEL_HDMI; break; default: @@ -105,7 +75,7 @@ static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev, static irqreturn_t shmob_drm_irq(int irq, void *arg) { struct drm_device *dev = arg; - struct shmob_drm_device *sdev = dev->dev_private; + struct shmob_drm_device *sdev = to_shmob_device(dev); unsigned long flags; u32 status; @@ -119,7 +89,7 @@ static irqreturn_t shmob_drm_irq(int irq, void *arg) spin_unlock_irqrestore(&sdev->irq_lock, flags); if (status & LDINTR_VES) { - drm_handle_vblank(dev, 0); + drm_crtc_handle_vblank(&sdev->crtc.base); shmob_drm_crtc_finish_page_flip(&sdev->crtc); } @@ -129,7 +99,7 @@ static irqreturn_t shmob_drm_irq(int irq, void *arg) DEFINE_DRM_GEM_DMA_FOPS(shmob_drm_fops); static const struct drm_driver shmob_drm_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET, + .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, DRM_GEM_DMA_DRIVER_OPS, .fops = &shmob_drm_fops, .name = "shmob-drm", @@ -147,67 +117,92 @@ static int shmob_drm_pm_suspend(struct device *dev) { struct shmob_drm_device *sdev = dev_get_drvdata(dev); - drm_kms_helper_poll_disable(sdev->ddev); - shmob_drm_crtc_suspend(&sdev->crtc); + return drm_mode_config_helper_suspend(&sdev->ddev); +} + +static int shmob_drm_pm_resume(struct device *dev) +{ + struct shmob_drm_device *sdev = dev_get_drvdata(dev); + + return drm_mode_config_helper_resume(&sdev->ddev); +} + +static int shmob_drm_pm_runtime_suspend(struct device *dev) +{ + struct shmob_drm_device *sdev = dev_get_drvdata(dev); + + if (sdev->clock) + clk_disable_unprepare(sdev->clock); return 0; } -static int shmob_drm_pm_resume(struct device *dev) +static int shmob_drm_pm_runtime_resume(struct device *dev) { struct shmob_drm_device *sdev = dev_get_drvdata(dev); + int ret; - drm_modeset_lock_all(sdev->ddev); - shmob_drm_crtc_resume(&sdev->crtc); - drm_modeset_unlock_all(sdev->ddev); + if (sdev->clock) { + ret = clk_prepare_enable(sdev->clock); + if (ret < 0) + return ret; + } - drm_kms_helper_poll_enable(sdev->ddev); return 0; } -static DEFINE_SIMPLE_DEV_PM_OPS(shmob_drm_pm_ops, - shmob_drm_pm_suspend, shmob_drm_pm_resume); +static const struct dev_pm_ops shmob_drm_pm_ops = { + SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume) + RUNTIME_PM_OPS(shmob_drm_pm_runtime_suspend, + shmob_drm_pm_runtime_resume, NULL) +}; /* ----------------------------------------------------------------------------- * Platform driver */ -static int shmob_drm_remove(struct platform_device *pdev) +static void shmob_drm_remove(struct platform_device *pdev) { struct shmob_drm_device *sdev = platform_get_drvdata(pdev); - struct drm_device *ddev = sdev->ddev; + struct drm_device *ddev = &sdev->ddev; drm_dev_unregister(ddev); + drm_atomic_helper_shutdown(ddev); drm_kms_helper_poll_fini(ddev); - free_irq(sdev->irq, ddev); - drm_dev_put(ddev); - - return 0; } static int shmob_drm_probe(struct platform_device *pdev) { struct shmob_drm_platform_data *pdata = pdev->dev.platform_data; + const struct shmob_drm_config *config; struct shmob_drm_device *sdev; struct drm_device *ddev; - unsigned int i; int ret; - if (pdata == NULL) { + config = of_device_get_match_data(&pdev->dev); + if (!config && !pdata) { dev_err(&pdev->dev, "no platform data\n"); return -EINVAL; } /* - * Allocate and initialize the driver private data, I/O resources and - * clocks. + * Allocate and initialize the DRM device, driver private data, I/O + * resources and clocks. */ - sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL); - if (sdev == NULL) - return -ENOMEM; + sdev = devm_drm_dev_alloc(&pdev->dev, &shmob_drm_driver, + struct shmob_drm_device, ddev); + if (IS_ERR(sdev)) + return PTR_ERR(sdev); + ddev = &sdev->ddev; sdev->dev = &pdev->dev; - sdev->pdata = pdata; + if (config) { + sdev->config = *config; + } else { + sdev->pdata = pdata; + sdev->config.clk_source = pdata->clk_source; + sdev->config.clk_div = pdata->iface.clk_div; + } spin_lock_init(&sdev->irq_lock); platform_set_drvdata(pdev, sdev); @@ -216,49 +211,32 @@ static int shmob_drm_probe(struct platform_device *pdev) if (IS_ERR(sdev->mmio)) return PTR_ERR(sdev->mmio); - ret = shmob_drm_setup_clocks(sdev, pdata->clk_source); + ret = shmob_drm_setup_clocks(sdev, sdev->config.clk_source); if (ret < 0) return ret; - ret = shmob_drm_init_interface(sdev); - if (ret < 0) + ret = devm_pm_runtime_enable(&pdev->dev); + if (ret) return ret; - /* Allocate and initialize the DRM device. */ - ddev = drm_dev_alloc(&shmob_drm_driver, &pdev->dev); - if (IS_ERR(ddev)) - return PTR_ERR(ddev); - - sdev->ddev = ddev; - ddev->dev_private = sdev; - - ret = shmob_drm_modeset_init(sdev); - if (ret < 0) { - dev_err(&pdev->dev, "failed to initialize mode setting\n"); - goto err_free_drm_dev; - } - - for (i = 0; i < 4; ++i) { - ret = shmob_drm_plane_create(sdev, i); - if (ret < 0) { - dev_err(&pdev->dev, "failed to create plane %u\n", i); - goto err_modeset_cleanup; - } - } - ret = drm_vblank_init(ddev, 1); if (ret < 0) { dev_err(&pdev->dev, "failed to initialize vblank\n"); - goto err_modeset_cleanup; + return ret; } + ret = shmob_drm_modeset_init(sdev); + if (ret < 0) + return dev_err_probe(&pdev->dev, ret, + "failed to initialize mode setting\n"); + ret = platform_get_irq(pdev, 0); if (ret < 0) goto err_modeset_cleanup; sdev->irq = ret; - ret = request_irq(sdev->irq, shmob_drm_irq, 0, ddev->driver->name, - ddev); + ret = devm_request_irq(&pdev->dev, sdev->irq, shmob_drm_irq, 0, + ddev->driver->name, ddev); if (ret < 0) { dev_err(&pdev->dev, "failed to install IRQ handler\n"); goto err_modeset_cleanup; @@ -270,28 +248,35 @@ static int shmob_drm_probe(struct platform_device *pdev) */ ret = drm_dev_register(ddev, 0); if (ret < 0) - goto err_irq_uninstall; + goto err_modeset_cleanup; drm_fbdev_generic_setup(ddev, 16); return 0; -err_irq_uninstall: - free_irq(sdev->irq, ddev); err_modeset_cleanup: drm_kms_helper_poll_fini(ddev); -err_free_drm_dev: - drm_dev_put(ddev); - return ret; } +static const struct shmob_drm_config shmob_arm_config = { + .clk_source = SHMOB_DRM_CLK_BUS, + .clk_div = 5, +}; + +static const struct of_device_id shmob_drm_of_table[] __maybe_unused = { + { .compatible = "renesas,r8a7740-lcdc", .data = &shmob_arm_config, }, + { .compatible = "renesas,sh73a0-lcdc", .data = &shmob_arm_config, }, + { /* sentinel */ } +}; + static struct platform_driver shmob_drm_platform_driver = { .probe = shmob_drm_probe, - .remove = shmob_drm_remove, + .remove_new = shmob_drm_remove, .driver = { .name = "shmob-drm", - .pm = pm_sleep_ptr(&shmob_drm_pm_ops), + .of_match_table = of_match_ptr(shmob_drm_of_table), + .pm = &shmob_drm_pm_ops, }, }; |