[PATCH 3/3] mailbox: mtk-cmdq: add mt6572 support

Roman Vivchar via B4 Relay devnull+rva333.protonmail.com at kernel.org
Tue Jul 28 02:42:48 PDT 2026


From: Roman Vivchar <rva333 at protonmail.com>

Add legacy_isa field forwarding to the cmdq helper and a platform data
for the mt6572 GCE.

Signed-off-by: Roman Vivchar <rva333 at protonmail.com>
---
 drivers/mailbox/mtk-cmdq-mailbox.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index e523c84b4808..5e7bc52baaa1 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -99,6 +99,7 @@ struct gce_plat {
 	bool control_by_sw;
 	bool sw_ddr_en;
 	bool gce_vm;
+	bool legacy_isa;
 	u32 gce_num;
 };
 
@@ -119,6 +120,7 @@ void cmdq_get_mbox_priv(struct mbox_chan *chan, struct cmdq_mbox_priv *priv)
 	struct cmdq *cmdq = container_of(chan->mbox, struct cmdq, mbox);
 
 	priv->shift_pa = cmdq->pdata->shift;
+	priv->legacy_isa = cmdq->pdata->legacy_isa;
 	priv->mminfra_offset = cmdq->pdata->mminfra_offset;
 }
 EXPORT_SYMBOL(cmdq_get_mbox_priv);
@@ -787,6 +789,14 @@ static const struct dev_pm_ops cmdq_pm_ops = {
 			   cmdq_runtime_resume, NULL)
 };
 
+static const struct gce_plat gce_plat_mt6572 = {
+	.thread_nr = 14,
+	.shift = 0,
+	.control_by_sw = false,
+	.legacy_isa = true,
+	.gce_num = 1
+};
+
 static const struct gce_plat gce_plat_mt6779 = {
 	.thread_nr = 24,
 	.shift = 3,
@@ -848,6 +858,7 @@ static const struct gce_plat gce_plat_mt8196 = {
 };
 
 static const struct of_device_id cmdq_of_ids[] = {
+	{.compatible = "mediatek,mt6572-gce", .data = (void *)&gce_plat_mt6572},
 	{.compatible = "mediatek,mt6779-gce", .data = (void *)&gce_plat_mt6779},
 	{.compatible = "mediatek,mt8173-gce", .data = (void *)&gce_plat_mt8173},
 	{.compatible = "mediatek,mt8183-gce", .data = (void *)&gce_plat_mt8183},

-- 
2.54.0





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