[v2 07/10] drm/mediatek: Add mfd support for mt8173

From: matthias . bgg
Date: Mon Apr 23 2018 - 12:16:08 EST


From: Matthias Brugger <mbrugger@xxxxxxxx>

Use the MFD device for SoC mt8173. Probing via devicetree
is no longer needed for any SoC, so delete it.

Signed-off-by: Matthias Brugger <mbrugger@xxxxxxxx>
Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 28 +++++++---------------------
1 file changed, 7 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 88ee35907744..3cc433ebfa8f 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -399,20 +399,12 @@ 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);

- /* 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;
- }
+ 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;

/* Iterate over sibling DISP function blocks */
for_each_child_of_node(parent_node, node) {
@@ -555,14 +547,9 @@ static int mtk_drm_sys_resume(struct device *dev)
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,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 },
+ { "drm-mt8173-mm", (kernel_ulong_t)&mt8173_mmsys_driver_data },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mtk_drm_ids);
@@ -572,7 +559,6 @@ static struct platform_driver mtk_drm_platform_driver = {
.remove = mtk_drm_remove,
.driver = {
.name = "mediatek-drm",
- .of_match_table = mtk_drm_of_ids,
.pm = &mtk_drm_pm_ops,
},
.id_table = mtk_drm_ids,
--
2.16.3