diff options
Diffstat (limited to 'drivers/gpu/drm/imx/imx-ldb.c')
| -rw-r--r-- | drivers/gpu/drm/imx/imx-ldb.c | 109 |
1 files changed, 62 insertions, 47 deletions
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c index 41e2978cb1eb..dbfe39e2f7f6 100644 --- a/drivers/gpu/drm/imx/imx-ldb.c +++ b/drivers/gpu/drm/imx/imx-ldb.c @@ -22,6 +22,7 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_fb_helper.h> +#include <drm/drm_managed.h> #include <drm/drm_of.h> #include <drm/drm_panel.h> #include <drm/drm_print.h> @@ -47,12 +48,18 @@ #define LDB_DI1_VS_POL_ACT_LOW (1 << 10) #define LDB_BGREF_RMODE_INT (1 << 15) +struct imx_ldb_channel; + +struct imx_ldb_encoder { + struct drm_connector connector; + struct drm_encoder encoder; + struct imx_ldb_channel *channel; +}; + struct imx_ldb; struct imx_ldb_channel { struct imx_ldb *ldb; - struct drm_connector connector; - struct drm_encoder encoder; /* Defines what is connected to the ldb, only one at a time */ struct drm_panel *panel; @@ -70,12 +77,12 @@ struct imx_ldb_channel { static inline struct imx_ldb_channel *con_to_imx_ldb_ch(struct drm_connector *c) { - return container_of(c, struct imx_ldb_channel, connector); + return container_of(c, struct imx_ldb_encoder, connector)->channel; } static inline struct imx_ldb_channel *enc_to_imx_ldb_ch(struct drm_encoder *e) { - return container_of(e, struct imx_ldb_channel, encoder); + return container_of(e, struct imx_ldb_encoder, encoder)->channel; } struct bus_mux { @@ -411,9 +418,20 @@ static int imx_ldb_register(struct drm_device *drm, struct imx_ldb_channel *imx_ldb_ch) { struct imx_ldb *ldb = imx_ldb_ch->ldb; - struct drm_encoder *encoder = &imx_ldb_ch->encoder; + struct imx_ldb_encoder *ldb_encoder; + struct drm_connector *connector; + struct drm_encoder *encoder; int ret; + ldb_encoder = drmm_simple_encoder_alloc(drm, struct imx_ldb_encoder, + encoder, DRM_MODE_ENCODER_LVDS); + if (IS_ERR(ldb_encoder)) + return PTR_ERR(ldb_encoder); + + ldb_encoder->channel = imx_ldb_ch; + connector = &ldb_encoder->connector; + encoder = &ldb_encoder->encoder; + ret = imx_drm_encoder_parse_of(drm, encoder, imx_ldb_ch->child); if (ret) return ret; @@ -429,11 +447,9 @@ static int imx_ldb_register(struct drm_device *drm, } drm_encoder_helper_add(encoder, &imx_ldb_encoder_helper_funcs); - drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_LVDS); if (imx_ldb_ch->bridge) { - ret = drm_bridge_attach(&imx_ldb_ch->encoder, - imx_ldb_ch->bridge, NULL, 0); + ret = drm_bridge_attach(encoder, imx_ldb_ch->bridge, NULL, 0); if (ret) { DRM_ERROR("Failed to initialize bridge with drm\n"); return ret; @@ -445,13 +461,13 @@ static int imx_ldb_register(struct drm_device *drm, * historical reasons, the ldb driver can also work without * a panel. */ - drm_connector_helper_add(&imx_ldb_ch->connector, - &imx_ldb_connector_helper_funcs); - drm_connector_init_with_ddc(drm, &imx_ldb_ch->connector, + drm_connector_helper_add(connector, + &imx_ldb_connector_helper_funcs); + drm_connector_init_with_ddc(drm, connector, &imx_ldb_connector_funcs, DRM_MODE_CONNECTOR_LVDS, imx_ldb_ch->ddc); - drm_connector_attach_encoder(&imx_ldb_ch->connector, encoder); + drm_connector_attach_encoder(connector, encoder); } return 0; @@ -559,17 +575,42 @@ static int imx_ldb_panel_ddc(struct device *dev, static int imx_ldb_bind(struct device *dev, struct device *master, void *data) { struct drm_device *drm = data; + struct imx_ldb *imx_ldb = dev_get_drvdata(dev); + int ret; + int i; + + for (i = 0; i < 2; i++) { + struct imx_ldb_channel *channel = &imx_ldb->channel[i]; + + if (!channel->ldb) + break; + + ret = imx_ldb_register(drm, channel); + if (ret) + return ret; + } + + return 0; +} + +static const struct component_ops imx_ldb_ops = { + .bind = imx_ldb_bind, +}; + +static int imx_ldb_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; - const struct of_device_id *of_id = - of_match_device(imx_ldb_dt_ids, dev); + const struct of_device_id *of_id = of_match_device(imx_ldb_dt_ids, dev); struct device_node *child; struct imx_ldb *imx_ldb; int dual; int ret; int i; - imx_ldb = dev_get_drvdata(dev); - memset(imx_ldb, 0, sizeof(*imx_ldb)); + imx_ldb = devm_kzalloc(dev, sizeof(*imx_ldb), GFP_KERNEL); + if (!imx_ldb) + return -ENOMEM; imx_ldb->regmap = syscon_regmap_lookup_by_phandle(np, "gpr"); if (IS_ERR(imx_ldb->regmap)) { @@ -669,25 +710,20 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data) } channel->bus_format = bus_format; channel->child = child; - - ret = imx_ldb_register(drm, channel); - if (ret) { - channel->child = NULL; - goto free_child; - } } - return 0; + platform_set_drvdata(pdev, imx_ldb); + + return component_add(&pdev->dev, &imx_ldb_ops); free_child: of_node_put(child); return ret; } -static void imx_ldb_unbind(struct device *dev, struct device *master, - void *data) +static int imx_ldb_remove(struct platform_device *pdev) { - struct imx_ldb *imx_ldb = dev_get_drvdata(dev); + struct imx_ldb *imx_ldb = platform_get_drvdata(pdev); int i; for (i = 0; i < 2; i++) { @@ -696,28 +732,7 @@ static void imx_ldb_unbind(struct device *dev, struct device *master, kfree(channel->edid); i2c_put_adapter(channel->ddc); } -} - -static const struct component_ops imx_ldb_ops = { - .bind = imx_ldb_bind, - .unbind = imx_ldb_unbind, -}; - -static int imx_ldb_probe(struct platform_device *pdev) -{ - struct imx_ldb *imx_ldb; - - imx_ldb = devm_kzalloc(&pdev->dev, sizeof(*imx_ldb), GFP_KERNEL); - if (!imx_ldb) - return -ENOMEM; - - platform_set_drvdata(pdev, imx_ldb); - - return component_add(&pdev->dev, &imx_ldb_ops); -} -static int imx_ldb_remove(struct platform_device *pdev) -{ component_del(&pdev->dev, &imx_ldb_ops); return 0; } |