From: Stanley Chu <stanley.chu@mediatek.com>
To: linux-scsi@vger.kernel.org, martin.petersen@oracle.com,
avri.altman@wdc.com, alim.akhtar@samsung.com,
pedrom.sousa@synopsys.com
Cc: marc.w.gonzalez@free.fr, andy.teng@mediatek.com,
chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
evgreen@chromium.org, subhashj@codeaurora.org,
linux-mediatek@lists.infradead.org, peter.wang@mediatek.com,
vivek.gautam@codeaurora.org, matthias.bgg@gmail.com,
sayalil@codeaurora.org, Stanley Chu <stanley.chu@mediatek.com>,
linux-arm-kernel@lists.infradead.org, beanhuo@micron.com
Subject: [PATCH v1 1/3] scsi: ufs: do not overwrite auto-hibern8 timer
Date: Mon, 13 May 2019 22:36:24 +0800 [thread overview]
Message-ID: <1557758186-18706-2-git-send-email-stanley.chu@mediatek.com> (raw)
In-Reply-To: <1557758186-18706-1-git-send-email-stanley.chu@mediatek.com>
Some vendor-specific initialization flow may set its own
auto-hibern8 timer. In this case, do not overwrite timer value
as "default value" in ufshcd_init().
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
drivers/scsi/ufs/ufshcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e040f9dd9ff3..1665820c22fd 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8309,7 +8309,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
UIC_LINK_HIBERN8_STATE);
/* Set the default auto-hiberate idle timer value to 150 ms */
- if (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT) {
+ if (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT & !hba->ahit) {
hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) |
FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3);
}
--
2.18.0
WARNING: multiple messages have this Message-ID (diff)
From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
<pedrom.sousa@synopsys.com>
Cc: marc.w.gonzalez@free.fr, andy.teng@mediatek.com,
chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
evgreen@chromium.org, subhashj@codeaurora.org,
linux-mediatek@lists.infradead.org, peter.wang@mediatek.com,
vivek.gautam@codeaurora.org, matthias.bgg@gmail.com,
sayalil@codeaurora.org, Stanley Chu <stanley.chu@mediatek.com>,
linux-arm-kernel@lists.infradead.org, beanhuo@micron.com
Subject: [PATCH v1 1/3] scsi: ufs: do not overwrite auto-hibern8 timer
Date: Mon, 13 May 2019 22:36:24 +0800 [thread overview]
Message-ID: <1557758186-18706-2-git-send-email-stanley.chu@mediatek.com> (raw)
In-Reply-To: <1557758186-18706-1-git-send-email-stanley.chu@mediatek.com>
Some vendor-specific initialization flow may set its own
auto-hibern8 timer. In this case, do not overwrite timer value
as "default value" in ufshcd_init().
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
drivers/scsi/ufs/ufshcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e040f9dd9ff3..1665820c22fd 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8309,7 +8309,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
UIC_LINK_HIBERN8_STATE);
/* Set the default auto-hiberate idle timer value to 150 ms */
- if (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT) {
+ if (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT & !hba->ahit) {
hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) |
FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3);
}
--
2.18.0
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next prev parent reply other threads:[~2019-05-13 14:36 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-13 14:36 [PATCH v1 0/3] scsi: ufs: add error handlings of auto-hibern8 Stanley Chu
2019-05-13 14:36 ` Stanley Chu
2019-05-13 14:36 ` Stanley Chu [this message]
2019-05-13 14:36 ` [PATCH v1 1/3] scsi: ufs: do not overwrite auto-hibern8 timer Stanley Chu
2019-05-13 14:36 ` [PATCH v1 2/3] scsi: ufs: add error handling of auto-hibern8 Stanley Chu
2019-05-13 14:36 ` Stanley Chu
2019-05-13 18:21 ` [EXT] " Bean Huo (beanhuo)
2019-05-13 18:21 ` Bean Huo (beanhuo)
[not found] ` <BN7PR08MB568438668FC7C90A1284F53DDB0F0-7KdolmqvL8eEpBUohhTomJNArRD3w/9+vxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2019-05-14 6:58 ` Stanley Chu
2019-05-14 6:58 ` Stanley Chu
2019-05-14 11:14 ` Bean Huo (beanhuo)
2019-05-14 11:14 ` Bean Huo (beanhuo)
2019-05-15 2:52 ` Stanley Chu
2019-05-15 2:52 ` Stanley Chu
[not found] ` <1557758186-18706-1-git-send-email-stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2019-05-13 14:36 ` [PATCH v1 3/3] scsi: ufs: use re-factored auto_hibern8 function Stanley Chu
2019-05-13 14:36 ` Stanley Chu
2019-05-13 14:51 ` [PATCH v1 0/3] scsi: ufs: add error handlings of auto-hibern8 Marc Gonzalez
2019-05-13 14:51 ` Marc Gonzalez
2019-05-14 6:25 ` Stanley Chu
2019-05-14 6:25 ` Stanley Chu
[not found] ` <55818bc4-d464-bb35-25bb-9ef87af8224e-GANU6spQydw@public.gmane.org>
2019-05-20 5:58 ` Avri Altman
2019-05-20 5:58 ` Avri Altman
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