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soc: mediatek: cmdq: add set event function

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Add set event function in cmdq helper functions to set specific event.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1592749115-24158-12-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Dennis YC Hsieh 2020-06-21 22:18:35 +08:00 committed by Matthias Brugger
parent 995818588b
commit 7de796cac4
3 changed files with 25 additions and 0 deletions
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15
drivers/soc/mediatek/mtk-cmdq-helper.c
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@ -253,6 +253,21 @@ 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)
{

1
include/linux/mailbox/mtk-cmdq-mailbox.h
View File

@ -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

9
include/linux/soc/mediatek/mtk-cmdq.h
View File

@ -120,6 +120,15 @@ int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event);
*/
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