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From: Adrian Hunter <adrian.hunter@intel.com>
To: Martin K Petersen <martin.petersen@oracle.com>
Cc: James EJ Bottomley <James.Bottomley@HansenPartnership.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Avri Altman <avri.altman@sandisk.com>,
	Archana Patni <archana.patni@intel.com>,
	linux-scsi@vger.kernel.org
Subject: [PATCH V2 8/8] scsi: ufs: ufs-pci: Remove control of UIC Completion interrupt for Intel MTL
Date: Wed, 23 Jul 2025 19:58:56 +0300	[thread overview]
Message-ID: <20250723165856.145750-9-adrian.hunter@intel.com> (raw)
In-Reply-To: <20250723165856.145750-1-adrian.hunter@intel.com>

Now that UFS core enables the UIC Completion interrupt only when needed,
Intel MTL driver no longer needs to control the interrupt itself.  So
remove the associated code.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/ufs/host/ufshcd-pci.c | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/drivers/ufs/host/ufshcd-pci.c b/drivers/ufs/host/ufshcd-pci.c
index b29ec1904482..b39239f641f2 100644
--- a/drivers/ufs/host/ufshcd-pci.c
+++ b/drivers/ufs/host/ufshcd-pci.c
@@ -211,32 +211,6 @@ static int ufs_intel_lkf_apply_dev_quirks(struct ufs_hba *hba)
 	return ret;
 }
 
-static void ufs_intel_ctrl_uic_compl(struct ufs_hba *hba, bool enable)
-{
-	u32 set = ufshcd_readl(hba, REG_INTERRUPT_ENABLE);
-
-	if (enable)
-		set |= UIC_COMMAND_COMPL;
-	else
-		set &= ~UIC_COMMAND_COMPL;
-	ufshcd_writel(hba, set, REG_INTERRUPT_ENABLE);
-}
-
-static void ufs_intel_mtl_h8_notify(struct ufs_hba *hba,
-				    enum uic_cmd_dme cmd,
-				    enum ufs_notify_change_status status)
-{
-	/*
-	 * Disable UIC COMPL INTR to prevent access to UFSHCI after
-	 * checking HCS.UPMCRS
-	 */
-	if (status == PRE_CHANGE && cmd == UIC_CMD_DME_HIBER_ENTER)
-		ufs_intel_ctrl_uic_compl(hba, false);
-
-	if (status == POST_CHANGE && cmd == UIC_CMD_DME_HIBER_EXIT)
-		ufs_intel_ctrl_uic_compl(hba, true);
-}
-
 #define INTEL_ACTIVELTR		0x804
 #define INTEL_IDLELTR		0x808
 
@@ -549,7 +523,6 @@ static struct ufs_hba_variant_ops ufs_intel_mtl_hba_vops = {
 	.init			= ufs_intel_mtl_init,
 	.exit			= ufs_intel_common_exit,
 	.hce_enable_notify	= ufs_intel_hce_enable_notify,
-	.hibern8_notify		= ufs_intel_mtl_h8_notify,
 	.link_startup_notify	= ufs_intel_link_startup_notify,
 	.resume			= ufs_intel_resume,
 	.device_reset		= ufs_intel_device_reset,
-- 
2.48.1


  parent reply	other threads:[~2025-07-23 16:59 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-23 16:58 [PATCH V2 0/8] scsi: ufs: ufs-pci: Fix hibernate state transition for Intel MTL-like host controllers Adrian Hunter
2025-07-23 16:58 ` [PATCH V2 1/8] " Adrian Hunter
2025-07-23 16:58 ` [PATCH V2 2/8] scsi: ufs: ufs-pci: Fix default runtime and system PM levels Adrian Hunter
2025-07-23 16:58 ` [PATCH V2 3/8] scsi: ufs: ufs-pci: Remove UFS PCI driver's ->late_init() call back Adrian Hunter
2025-07-23 16:58 ` [PATCH V2 4/8] scsi: ufs: core: Move ufshcd_enable_intr() and ufshcd_disable_intr() Adrian Hunter
2025-07-23 16:58 ` [PATCH V2 5/8] scsi: ufs: core: Remove duplicated code in ufshcd_send_bsg_uic_cmd() Adrian Hunter
2025-07-23 16:58 ` [PATCH V2 6/8] scsi: ufs: core: Set and clear UIC Completion interrupt as needed Adrian Hunter
2025-07-23 16:58 ` [PATCH V2 7/8] scsi: ufs: core: Do not write interrupt enable register unnecessarily Adrian Hunter
2025-07-23 16:58 ` Adrian Hunter [this message]
2025-07-23 17:14 ` [PATCH V2 0/8] scsi: ufs: ufs-pci: Fix hibernate state transition for Intel MTL-like host controllers Bart Van Assche
2025-07-25  2:46 ` Martin K. Petersen
2025-07-31  4:44 ` Martin K. Petersen

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