From 27dd04a59158f2c52974c3691163b8014c8195f1 Mon Sep 17 00:00:00 2001 From: Xu YiPing Date: Tue, 20 Aug 2019 23:06:23 +0000 Subject: [PATCH] drm: kirin: Make driver_data variable non-global As part of refactoring the kirin driver to better support different hardware revisions, this patch changes the driver_data value to not be a global variable. Instead the driver_data value is accessed via the of_device_get_match_data() when needed. Cc: Rongrong Zou Cc: Xinliang Liu Cc: David Airlie Cc: Daniel Vetter Cc: dri-devel Cc: Sam Ravnborg Acked-by: Xinliang Liu Reviewed-by: Sam Ravnborg Signed-off-by: Xu YiPing [jstultz: Reworded commit message] Signed-off-by: John Stultz Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20190820230626.23253-23-john.stultz@linaro.org --- .../gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 43 +++++++++++-------- 1 file changed, 24 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c index 7f8d4539b1a9..f5df88378591 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c @@ -29,18 +29,9 @@ #include "kirin_drm_drv.h" -static struct kirin_drm_data *driver_data; -static int kirin_drm_kms_cleanup(struct drm_device *dev) -{ - drm_kms_helper_poll_fini(dev); - driver_data->cleanup(to_platform_device(dev->dev)); - drm_mode_config_cleanup(dev); - - return 0; -} - -static int kirin_drm_kms_init(struct drm_device *dev) +static int kirin_drm_kms_init(struct drm_device *dev, + const struct kirin_drm_data *driver_data) { int ret; @@ -96,6 +87,21 @@ static int compare_of(struct device *dev, void *data) return dev->of_node == data; } +static int kirin_drm_kms_cleanup(struct drm_device *dev) +{ + const struct kirin_drm_data *driver_data; + + drm_kms_helper_poll_fini(dev); + + driver_data = of_device_get_match_data(dev->dev); + if (driver_data->cleanup) + driver_data->cleanup(to_platform_device(dev->dev)); + + drm_mode_config_cleanup(dev); + + return 0; +} + static int kirin_drm_connectors_register(struct drm_device *dev) { struct drm_connector *connector; @@ -132,15 +138,21 @@ err: static int kirin_drm_bind(struct device *dev) { + struct kirin_drm_data *driver_data; struct drm_device *drm_dev; int ret; + driver_data = (struct kirin_drm_data *)of_device_get_match_data(dev); + if (!driver_data) + return -EINVAL; + drm_dev = drm_dev_alloc(driver_data->driver, dev); if (IS_ERR(drm_dev)) return PTR_ERR(drm_dev); dev_set_drvdata(dev, drm_dev); - ret = kirin_drm_kms_init(drm_dev); + /* display controller init */ + ret = kirin_drm_kms_init(drm_dev, driver_data); if (ret) goto err_drm_dev_put; @@ -190,12 +202,6 @@ static int kirin_drm_platform_probe(struct platform_device *pdev) struct component_match *match = NULL; struct device_node *remote; - driver_data = (struct kirin_drm_data *)of_device_get_match_data(dev); - if (!driver_data) { - DRM_ERROR("failed to get dt id data\n"); - return -EINVAL; - } - remote = of_graph_get_remote_node(np, 0, 0); if (!remote) return -ENODEV; @@ -209,7 +215,6 @@ static int kirin_drm_platform_probe(struct platform_device *pdev) static int kirin_drm_platform_remove(struct platform_device *pdev) { component_master_del(&pdev->dev, &kirin_drm_ops); - driver_data = NULL; return 0; } -- 2.30.2