From: Matthias Brugger <mbrugger@xxxxxxxx>
With the mtk-mmsys MFD device in place, we switch the probing for
mt2701 from device-tree to mfd.
Signed-off-by: Matthias Brugger <mbrugger@xxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 30 +++++++++++++++++++++++-------
1 file changed, 23 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index a48e28adad09..88ee35907744 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -386,7 +386,7 @@ static int mtk_drm_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct mtk_drm_private *private;
- struct device_node *node;
+ struct device_node *node, *parent_node, *mmsys_node;
struct component_match *match = NULL;
int ret;
int i;
@@ -399,12 +399,23 @@ static int mtk_drm_probe(struct platform_device *pdev)
INIT_WORK(&private->commit.work, mtk_atomic_work);
private->data = of_device_get_match_data(dev);
- private->config_regs = syscon_node_to_regmap(dev->of_node);
- if (IS_ERR(private->config_regs))
- return PTR_ERR(private->config_regs);
+ /* Check if called from mfd */
+ if (!dev->of_node) {
+ mmsys_node = pdev->dev.parent->of_node;
+ private->data = (struct mtk_mmsys_driver_data *)
+ platform_get_device_id(pdev)->driver_data;
+ private->config_regs =
+ syscon_node_to_regmap(mmsys_node);
+ parent_node = mmsys_node->parent;
+ } else {
+ private->config_regs = syscon_node_to_regmap(dev->of_node);
+ if (IS_ERR(private->config_regs))
+ return PTR_ERR(private->config_regs);
+ parent_node = dev->of_node->parent;
+ }
/* Iterate over sibling DISP function blocks */
- for_each_child_of_node(dev->of_node->parent, node) {
+ for_each_child_of_node(parent_node, node) {
const struct of_device_id *of_id;
enum mtk_ddp_comp_type comp_type;
int comp_id;
@@ -545,13 +556,17 @@ static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend,
mtk_drm_sys_resume);
static const struct of_device_id mtk_drm_of_ids[] = {
- { .compatible = "mediatek,mt2701-mmsys",
- .data = &mt2701_mmsys_driver_data},
{ .compatible = "mediatek,mt8173-mmsys",
.data = &mt8173_mmsys_driver_data},
{ }
};
+static const struct platform_device_id mtk_drm_ids[] = {
+ { "drm-mt2701-mm", (kernel_ulong_t)&mt2701_mmsys_driver_data },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(platform, mtk_drm_ids);
+
static struct platform_driver mtk_drm_platform_driver = {
.probe = mtk_drm_probe,
.remove = mtk_drm_remove,
@@ -560,6 +575,7 @@ static struct platform_driver mtk_drm_platform_driver = {
.of_match_table = mtk_drm_of_ids,
.pm = &mtk_drm_pm_ops,
},
+ .id_table = mtk_drm_ids,
};
static struct platform_driver * const mtk_drm_drivers[] = {
--
2.16.3
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