Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752722AbaKJKmR (ORCPT ); Mon, 10 Nov 2014 05:42:17 -0500 Received: from mail-yk0-f194.google.com ([209.85.160.194]:49813 "EHLO mail-yk0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751992AbaKJKmM (ORCPT ); Mon, 10 Nov 2014 05:42:12 -0500 From: Andy Yan To: airlied@linux.ie, Zubair.Kakakhel@imgtec.com, rmk+kernel@arm.linux.org.uk, fabio.estevam@freescale.com, heiko@sntech.de Cc: Yakir Yang , Andy Yan , Greg Kroah-Hartman , Philipp Zabel , Shawn Guo , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org Subject: [PATCH v6 6/7] drm: bridge/dw-hdmi: convert dw-hdmi to drm_bridge mode Date: Mon, 10 Nov 2014 18:41:01 +0800 Message-Id: <1415616062-30583-7-git-send-email-andy.yan@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1415616062-30583-1-git-send-email-andy.yan@rock-chips.com> References: <1415616062-30583-1-git-send-email-andy.yan@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yakir Yang handle encoder in dw_hdmi-imx.c, keep the connector & birdge in dw_hdmi.c Signed-off-by: Andy Yan Signed-off-by: Yakir Yang --- Changes in v6: - move some modification from patch#5 Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/gpu/drm/bridge/dw_hdmi.c | 228 +++++++++++++++------------------- drivers/staging/imx-drm/dw_hdmi-imx.c | 145 ++++++++++++++------- include/drm/bridge/dw_hdmi.h | 13 +- 3 files changed, 199 insertions(+), 187 deletions(-) diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index c15c86e..25f2caf 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -11,7 +11,6 @@ * Copyright (C) 2010, Guennadi Liakhovetski */ -#include #include #include #include @@ -107,7 +106,8 @@ union dw_reg_ptr { struct dw_hdmi { struct drm_connector connector; - struct drm_encoder encoder; + struct drm_encoder *encoder; + struct drm_bridge *bridge; enum dw_hdmi_devtype dev_type; struct device *dev; @@ -1319,6 +1319,50 @@ static void dw_hdmi_poweroff(struct dw_hdmi *hdmi) dw_hdmi_phy_disable(hdmi); } +static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct dw_hdmi *hdmi = bridge->driver_private; + + dw_hdmi_setup(hdmi, mode); + + /* Store the display mode for plugin/DKMS poweron events */ + memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode)); +} + +static bool dw_hdmi_bridge_mode_fixup(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +static void dw_hdmi_bridge_disable(struct drm_bridge *bridge) +{ + struct dw_hdmi *hdmi = bridge->driver_private; + + dw_hdmi_poweroff(hdmi); +} + +static void dw_hdmi_bridge_enable(struct drm_bridge *bridge) +{ + struct dw_hdmi *hdmi = bridge->driver_private; + + dw_hdmi_poweron(hdmi); +} + +static void dw_hdmi_bridge_destroy(struct drm_bridge *bridge) +{ + drm_bridge_cleanup(bridge); + kfree(bridge); +} + +static void dw_hdmi_bridge_nope(struct drm_bridge *bridge) +{ + /* do nothing */ +} + static enum drm_connector_status dw_hdmi_connector_detect(struct drm_connector *connector, bool force) { @@ -1360,60 +1404,7 @@ static struct drm_encoder *dw_hdmi_connector_best_encoder(struct drm_connector struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi, connector); - return &hdmi->encoder; -} - -static void dw_hdmi_encoder_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder); - - dw_hdmi_setup(hdmi, mode); - - /* Store the display mode for plugin/DKMS poweron events */ - memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode)); -} - -static bool dw_hdmi_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - return true; -} - -static void dw_hdmi_encoder_disable(struct drm_encoder *encoder) -{ -} - -static void dw_hdmi_encoder_dpms(struct drm_encoder *encoder, int mode) -{ - struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder); - - if (mode) - dw_hdmi_poweroff(hdmi); - else - dw_hdmi_poweron(hdmi); -} - -static void dw_hdmi_encoder_prepare(struct drm_encoder *encoder) -{ - struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder); - - dw_hdmi_poweroff(hdmi); - - if (hdmi->plat_data->encoder_prepare) - hdmi->plat_data->encoder_prepare(&hdmi->connector, encoder); -} - -static void dw_hdmi_encoder_commit(struct drm_encoder *encoder) -{ - struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder); - - if (hdmi->plat_data->encoder_commit) - hdmi->plat_data->encoder_commit(hdmi->priv, encoder); - - dw_hdmi_poweron(hdmi); + return hdmi->encoder; } void dw_hdmi_connector_destroy(struct drm_connector *connector) @@ -1422,19 +1413,6 @@ void dw_hdmi_connector_destroy(struct drm_connector *connector) drm_connector_cleanup(connector); } -static struct drm_encoder_funcs dw_hdmi_encoder_funcs = { - .destroy = drm_encoder_cleanup, -}; - -static struct drm_encoder_helper_funcs dw_hdmi_encoder_helper_funcs = { - .dpms = dw_hdmi_encoder_dpms, - .prepare = dw_hdmi_encoder_prepare, - .commit = dw_hdmi_encoder_commit, - .mode_set = dw_hdmi_encoder_mode_set, - .mode_fixup = dw_hdmi_encoder_mode_fixup, - .disable = dw_hdmi_encoder_disable, -}; - static struct drm_connector_funcs dw_hdmi_connector_funcs = { .dpms = drm_helper_connector_dpms, .fill_modes = drm_helper_probe_single_connector_modes, @@ -1447,6 +1425,16 @@ static struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = { .best_encoder = dw_hdmi_connector_best_encoder, }; +struct drm_bridge_funcs dw_hdmi_bridge_funcs = { + .enable = dw_hdmi_bridge_enable, + .disable = dw_hdmi_bridge_disable, + .pre_enable = dw_hdmi_bridge_nope, + .post_disable = dw_hdmi_bridge_nope, + .mode_set = dw_hdmi_bridge_mode_set, + .mode_fixup = dw_hdmi_bridge_mode_fixup, + .destroy = dw_hdmi_bridge_destroy, +}; + static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id) { struct dw_hdmi *hdmi = dev_id; @@ -1495,40 +1483,64 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id) static int dw_hdmi_register(struct drm_device *drm, struct dw_hdmi *hdmi) { - struct drm_encoder *encoder = &hdmi->encoder; - struct device *dev = hdmi->dev; + struct drm_encoder *encoder = hdmi->encoder; + struct drm_bridge *bridge; + int ret; - encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node); + bridge = devm_kzalloc(drm->dev, sizeof(*bridge), GFP_KERNEL); + if (!bridge) { + DRM_ERROR("Failed to allocate drm bridge\n"); + return -ENOMEM; + } - hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD; + hdmi->bridge = bridge; + bridge->driver_private = hdmi; - drm_encoder_helper_add(&hdmi->encoder, &dw_hdmi_encoder_helper_funcs); - drm_encoder_init(drm, &hdmi->encoder, &dw_hdmi_encoder_funcs, - DRM_MODE_ENCODER_TMDS); + ret = drm_bridge_init(drm, bridge, &dw_hdmi_bridge_funcs); + if (ret) { + DRM_ERROR("Failed to initialize bridge with drm\n"); + return -EINVAL; + } + + encoder->bridge = bridge; + hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD; drm_connector_helper_add(&hdmi->connector, &dw_hdmi_connector_helper_funcs); drm_connector_init(drm, &hdmi->connector, &dw_hdmi_connector_funcs, DRM_MODE_CONNECTOR_HDMIA); - hdmi->connector.encoder = &hdmi->encoder; + hdmi->connector.encoder = encoder; - drm_mode_connector_attach_encoder(&hdmi->connector, &hdmi->encoder); + drm_mode_connector_attach_encoder(&hdmi->connector, encoder); return 0; } -static int dw_hdmi_bind(struct device *dev, struct device *master, void *data) +int dw_hdmi_bind(struct device *dev, struct device *master, + void *data, struct drm_encoder *encoder, + const struct dw_hdmi_plat_data *plat_data) { struct platform_device *pdev = to_platform_device(dev); - struct dw_hdmi *hdmi = platform_get_drvdata(pdev); struct drm_device *drm = data; struct device_node *np = dev->of_node; struct device_node *ddc_node; struct resource *iores; + struct dw_hdmi *hdmi; int ret, irq; u32 val = 1; + hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL); + if (!hdmi) + return -ENOMEM; + + hdmi->plat_data = plat_data; + hdmi->dev = &pdev->dev; + hdmi->dev_type = plat_data->dev_type; + hdmi->sample_rate = 48000; + hdmi->ratio = 100; + hdmi->encoder = encoder; + of_property_read_u32(np, "reg-io-width", &val); switch (val) { @@ -1574,8 +1586,6 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data) if (IS_ERR(hdmi->regs.p32)) return PTR_ERR(hdmi->regs.p32); - if (hdmi->plat_data->setup) - hdmi->priv = hdmi->plat_data->setup(pdev); /* Product and revision IDs */ dev_info(dev, "Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n", @@ -1616,9 +1626,9 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data) return 0; } +EXPORT_SYMBOL_GPL(dw_hdmi_bind); -static void dw_hdmi_unbind(struct device *dev, struct device *master, - void *data) +void dw_hdmi_unbind(struct device *dev, struct device *master, void *data) { struct dw_hdmi *hdmi = dev_get_drvdata(dev); @@ -1626,57 +1636,15 @@ static void dw_hdmi_unbind(struct device *dev, struct device *master, hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0); hdmi->connector.funcs->destroy(&hdmi->connector); - hdmi->encoder.funcs->destroy(&hdmi->encoder); - if (hdmi->plat_data->exit) - hdmi->plat_data->exit(hdmi->priv); - i2c_put_adapter(hdmi->ddc); -} - -static const struct component_ops hdmi_ops = { - .bind = dw_hdmi_bind, - .unbind = dw_hdmi_unbind, -}; - -static int dw_hdmi_platform_probe(struct platform_device *pdev) -{ - return component_add(&pdev->dev, &hdmi_ops); -} - -static int dw_hdmi_platform_remove(struct platform_device *pdev) -{ - component_del(&pdev->dev, &hdmi_ops); - return 0; -} - -int dw_hdmi_platform_register(struct platform_device *pdev, - const struct dw_hdmi_plat_data *plat_data) -{ - struct dw_hdmi *hdmi; - - hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL); - if (!hdmi) - return -ENOMEM; - - hdmi->plat_data = plat_data; - hdmi->dev = &pdev->dev; - hdmi->dev_type = plat_data->dev_type; - hdmi->sample_rate = 48000; - hdmi->ratio = 100; + hdmi->encoder->funcs->destroy(hdmi->encoder); - platform_set_drvdata(pdev, hdmi); - - return dw_hdmi_platform_probe(pdev); -} -EXPORT_SYMBOL_GPL(dw_hdmi_platform_register); - -int dw_hdmi_platform_unregister(struct platform_device *pdev) -{ - return dw_hdmi_platform_remove(pdev); + i2c_put_adapter(hdmi->ddc); } -EXPORT_SYMBOL_GPL(dw_hdmi_platform_unregister); +EXPORT_SYMBOL_GPL(dw_hdmi_unbind); MODULE_AUTHOR("Sascha Hauer "); MODULE_AUTHOR("Andy Yan "); +MODULE_AUTHOR("Yakir Yang "); MODULE_DESCRIPTION("DW HDMI transmitter driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:dw-hdmi"); diff --git a/drivers/staging/imx-drm/dw_hdmi-imx.c b/drivers/staging/imx-drm/dw_hdmi-imx.c index d205874..12d04c2 100644 --- a/drivers/staging/imx-drm/dw_hdmi-imx.c +++ b/drivers/staging/imx-drm/dw_hdmi-imx.c @@ -5,12 +5,19 @@ */ #include #include +#include #include #include #include #include