[PATCH v2 1/1][SRU][Unstable/Kinetic/OEM-6.0] UBUNTU: SAUCE: t7xx: skip suspend to AP-CLDMA

You-Sheng Yang vicamo.yang at canonical.com
Wed Nov 2 08:38:50 UTC 2022


From: "Sethuraman, Muralidharan" <muralidharan.sethuraman at intel.com>

BugLink: https://bugs.launchpad.net/bugs/1990700

The t7xx contains two Cross Layer DMA (CLDMA) interfaces to
communicate with AP and Modem processors respectively. So far only
MD-CLDMA was being used, and the other AP-CLDMA is to be enabled in
following fixes.

This patch skips suspend command to AP-CLDMA that actually fails.

Signed-off-by: You-Sheng Yang (vicamo) <vicamo.yang at canonical.com>
---
 drivers/net/wwan/t7xx/t7xx_pci.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/wwan/t7xx/t7xx_pci.c b/drivers/net/wwan/t7xx/t7xx_pci.c
index 871f2a27a398..1b5bc5f57a76 100644
--- a/drivers/net/wwan/t7xx/t7xx_pci.c
+++ b/drivers/net/wwan/t7xx/t7xx_pci.c
@@ -308,13 +308,6 @@ static int __t7xx_pci_pm_suspend(struct pci_dev *pdev)
 		goto abort_suspend;
 	}
 
-	ret = t7xx_send_pm_request(t7xx_dev, H2D_CH_SUSPEND_REQ_AP);
-	if (ret) {
-		t7xx_send_pm_request(t7xx_dev, H2D_CH_RESUME_REQ);
-		dev_err(&pdev->dev, "[PM] SAP suspend error: %d\n", ret);
-		goto abort_suspend;
-	}
-
 	list_for_each_entry(entity, &t7xx_dev->md_pm_entities, entity) {
 		if (entity->suspend_late)
 			entity->suspend_late(t7xx_dev, entity->entity_param);
-- 
2.37.2




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