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

Ritesh Harjani
2017-08-30T13:04:08Z

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)
--
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Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.