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FROMLIST: scsi: ufs: core: Add host quirk UFSHCD_QUIRK_MCQ_BROKEN_INTR

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Quirk UFSHCD_QUIRK_MCQ_BROKEN_INTR is introduced for host that
implement different interrupt topology from UFSHCI 4.0 spec.
Some host raise per hw queue interrupt in addition to
CQES (traditional) when ESI is disabled.

Enable this quirk will disable CQES and use only per hw queue
interrupt.

Bug: 267974767
Link: https://lore.kernel.org/all/20230612085817.12275-2-powen.kao@mediatek.com/
Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Change-Id: I42b24f668ed501bc6c7511898d5b90e8d9fd1492
This commit is contained in:
Po-Wen Kao 2023-03-22 13:32:30 +08:00 • committed by Akilesh Kailash
parent 46554e08b3
commit 27b569b568
2 changed files with 12 additions and 1 deletions
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6
drivers/ufs/core/ufshcd.c
View file

@ -8712,11 +8712,15 @@ err:
static void ufshcd_config_mcq(struct ufs_hba *hba)
{
int ret;
u32 intrs;
ret = ufshcd_mcq_vops_config_esi(hba);
dev_info(hba->dev, "ESI %sconfigured\n", ret ? "is not " : "");
ufshcd_enable_intr(hba, UFSHCD_ENABLE_MCQ_INTRS);
intrs = UFSHCD_ENABLE_MCQ_INTRS;
if (hba->quirks & UFSHCD_QUIRK_MCQ_BROKEN_INTR)
intrs &= ~MCQ_CQ_EVENT_STATUS;
ufshcd_enable_intr(hba, intrs);
ufshcd_mcq_make_queues_operational(hba);
ufshcd_mcq_config_mac(hba, hba->nutrs);

7
include/ufs/ufshcd.h
View file

@ -616,6 +616,13 @@ enum ufshcd_quirks {
* auto-hibernate capability but it's FASTAUTO only.
*/
UFSHCD_QUIRK_HIBERN_FASTAUTO = 1 << 18,
/*
* Some host raises interrupt (per queue) in addition to
* CQES (traditional) when ESI is disabled.
* Enable this quirk will disable CQES and use per queue interrupt.
*/
UFSHCD_QUIRK_MCQ_BROKEN_INTR = 1 << 20,
};
enum ufshcd_android_quirks {