diff options
Diffstat (limited to 'drivers/gpu/drm/aspeed/aspeed_gfx_drv.c')
| -rw-r--r-- | drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 80 |
1 files changed, 73 insertions, 7 deletions
diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c index 2b424b2b85cc..457ec04950f7 100644 --- a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c +++ b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c @@ -191,14 +191,9 @@ static void aspeed_gfx_unload(struct drm_device *drm) DEFINE_DRM_GEM_CMA_FOPS(fops); -static struct drm_driver aspeed_gfx_driver = { +static const struct drm_driver aspeed_gfx_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, - .gem_create_object = drm_gem_cma_create_object_default_funcs, - .dumb_create = drm_gem_cma_dumb_create, - .prime_handle_to_fd = drm_gem_prime_handle_to_fd, - .prime_fd_to_handle = drm_gem_prime_fd_to_handle, - .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, - .gem_prime_mmap = drm_gem_prime_mmap, + DRM_GEM_CMA_DRIVER_OPS, .fops = &fops, .name = "aspeed-gfx-drm", .desc = "ASPEED GFX DRM", @@ -212,6 +207,69 @@ static const struct of_device_id aspeed_gfx_match[] = { { } }; +#define ASPEED_SCU_VGA0 0x50 +#define ASPEED_SCU_MISC_CTRL 0x2c + +static ssize_t dac_mux_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct aspeed_gfx *priv = dev_get_drvdata(dev); + u32 val; + int rc; + + rc = kstrtou32(buf, 0, &val); + if (rc) + return rc; + + if (val > 3) + return -EINVAL; + + rc = regmap_update_bits(priv->scu, ASPEED_SCU_MISC_CTRL, 0x30000, val << 16); + if (rc < 0) + return 0; + + return count; +} + +static ssize_t dac_mux_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aspeed_gfx *priv = dev_get_drvdata(dev); + u32 reg; + int rc; + + rc = regmap_read(priv->scu, ASPEED_SCU_MISC_CTRL, ®); + if (rc) + return rc; + + return sprintf(buf, "%u\n", (reg >> 16) & 0x3); +} +static DEVICE_ATTR_RW(dac_mux); + +static ssize_t +vga_pw_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aspeed_gfx *priv = dev_get_drvdata(dev); + u32 reg; + int rc; + + rc = regmap_read(priv->scu, ASPEED_SCU_VGA0, ®); + if (rc) + return rc; + + return sprintf(buf, "%u\n", reg & 1); +} +static DEVICE_ATTR_RO(vga_pw); + +static struct attribute *aspeed_sysfs_entries[] = { + &dev_attr_vga_pw.attr, + &dev_attr_dac_mux.attr, + NULL, +}; + +static struct attribute_group aspeed_sysfs_attr_group = { + .attrs = aspeed_sysfs_entries, +}; + static int aspeed_gfx_probe(struct platform_device *pdev) { struct aspeed_gfx *priv; @@ -226,6 +284,12 @@ static int aspeed_gfx_probe(struct platform_device *pdev) if (ret) return ret; + dev_set_drvdata(&pdev->dev, priv); + + ret = sysfs_create_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); + if (ret) + return ret; + ret = drm_dev_register(&priv->drm, 0); if (ret) goto err_unload; @@ -234,6 +298,7 @@ static int aspeed_gfx_probe(struct platform_device *pdev) return 0; err_unload: + sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); aspeed_gfx_unload(&priv->drm); return ret; @@ -243,6 +308,7 @@ static int aspeed_gfx_remove(struct platform_device *pdev) { struct drm_device *drm = platform_get_drvdata(pdev); + sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); drm_dev_unregister(drm); aspeed_gfx_unload(drm); |