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Groups > linux.kernel > #1723301

[RFC 1/4] mmc: cqhci: Move CQHCI_ENABLE before setting TDLBA/TDLBAU

From Ritesh Harjani <rharjani@qti.qualcomm.com>
Newsgroups linux.kernel
Subject [RFC 1/4] mmc: cqhci: Move CQHCI_ENABLE before setting TDLBA/TDLBAU
Date 2017-08-30 15:10 +0200
Message-ID <ukaUO-i2-9@gated-at.bofh.it> (permalink)
References <ukaUO-i2-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Ritesh Harjani <riteshh@codeaurora.org>

Without this patch the CQHCI registers are getting reset
again.

Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
---
 drivers/mmc/host/cqhci.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/cqhci.c b/drivers/mmc/host/cqhci.c
index 8650a13..2a7351c 100644
--- a/drivers/mmc/host/cqhci.c
+++ b/drivers/mmc/host/cqhci.c
@@ -262,6 +262,9 @@ static void __cqhci_enable(struct cqhci_host *cq_host)
 
 	cqhci_writel(cq_host, cqcfg, CQHCI_CFG);
 
+	cqcfg |= CQHCI_ENABLE;
+	cqhci_writel(cq_host, cqcfg, CQHCI_CFG);
+
 	cqhci_writel(cq_host, lower_32_bits(cq_host->desc_dma_base),
 		     CQHCI_TDLBA);
 	cqhci_writel(cq_host, upper_32_bits(cq_host->desc_dma_base),
@@ -271,10 +274,6 @@ static void __cqhci_enable(struct cqhci_host *cq_host)
 
 	cqhci_set_irqs(cq_host, 0);
 
-	cqcfg |= CQHCI_ENABLE;
-
-	cqhci_writel(cq_host, cqcfg, CQHCI_CFG);
-
 	mmc->cqe_on = true;
 
 	if (cq_host->ops->enable)
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.

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[RFC 1/4] mmc: cqhci: Move CQHCI_ENABLE before setting TDLBA/TDLBAU Ritesh Harjani <rharjani@qti.qualcomm.com> - 2017-08-30 15:10 +0200

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