diff mbox series

[v1,11/11] soc: mediatek: cmdq: add set event function

Message ID 1592749115-24158-12-git-send-email-dennis-yc.hsieh@mediatek.com (mailing list archive)
State New, archived
Headers show
Series support cmdq helper function on mt6779 platform | expand

Commit Message

Dennis-YC Hsieh June 21, 2020, 2:18 p.m. UTC 
Add set event function in cmdq helper functions to set specific event.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
---
 drivers/soc/mediatek/mtk-cmdq-helper.c   |   15 +++++++++++++++
 include/linux/mailbox/mtk-cmdq-mailbox.h |    1 +
 include/linux/soc/mediatek/mtk-cmdq.h    |    9 +++++++++
 3 files changed, 25 insertions(+)
diff mbox series

Patch

diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 13f78c9b5901..e6133a42d229 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -346,6 +346,21 @@  int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event)
 }
 EXPORT_SYMBOL(cmdq_pkt_clear_event);
 
+int cmdq_pkt_set_event(struct cmdq_pkt *pkt, u16 event)
+{
+	struct cmdq_instruction inst = {};
+
+	if (event >= CMDQ_MAX_EVENT)
+		return -EINVAL;
+
+	inst.op = CMDQ_CODE_WFE;
+	inst.value = CMDQ_WFE_UPDATE | CMDQ_WFE_UPDATE_VALUE;
+	inst.event = event;
+
+	return cmdq_pkt_append_command(pkt, inst);
+}
+EXPORT_SYMBOL(cmdq_pkt_set_event);
+
 int cmdq_pkt_poll(struct cmdq_pkt *pkt, u8 subsys,
 		  u16 offset, u32 value)
 {
diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
index 42d2a30e6a70..ba2d811183a9 100644
--- a/include/linux/mailbox/mtk-cmdq-mailbox.h
+++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
@@ -17,6 +17,7 @@ 
 #define CMDQ_JUMP_PASS			CMDQ_INST_SIZE
 
 #define CMDQ_WFE_UPDATE			BIT(31)
+#define CMDQ_WFE_UPDATE_VALUE		BIT(16)
 #define CMDQ_WFE_WAIT			BIT(15)
 #define CMDQ_WFE_WAIT_VALUE		0x1
 
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
index 4b5f5d154bad..960704d75994 100644
--- a/include/linux/soc/mediatek/mtk-cmdq.h
+++ b/include/linux/soc/mediatek/mtk-cmdq.h
@@ -199,6 +199,15 @@  int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,
 int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event);
 
 /**
+ * cmdq_pkt_set_event() - append set event command to the CMDQ packet
+ * @pkt:	the CMDQ packet
+ * @event:	the desired event to be set
+ *
+ * Return: 0 for success; else the error code is returned
+ */
+int cmdq_pkt_set_event(struct cmdq_pkt *pkt, u16 event);
+
+/**
  * cmdq_pkt_poll() - Append polling command to the CMDQ packet, ask GCE to
  *		     execute an instruction that wait for a specified
  *		     hardware register to check for the value w/o mask.