openwrt/target/linux/ipq806x/patches-4.1/032-hwspinlock-qcom-Correct-msb-in-regmap_field.patch
John Crispin 6b775f4517 ipq806x: add hwspinlock support
This change cherry-picks the following 3 changes from linux-next:
*fb7737 hwspinlock/core: add device tree support
*19a0f6 hwspinlock: qcom: Add support for Qualcomm HW Mutex block
*bd5717 hwspinlock: qcom: Correct msb in regmap_field

We're also adding a patch to add the hardware spinlock device nodes on
IPQ806x platforms (033-soc-qcom-Add-sfbp-device-to-IPQ806x-dts.patch).

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 46655
2015-08-17 06:17:47 +00:00

27 lines
1003 B
Diff

From bd5717a4632cdecafe82d03de7dcb3b1876e2828 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Date: Fri, 26 Jun 2015 14:47:21 -0700
Subject: [PATCH] hwspinlock: qcom: Correct msb in regmap_field
msb of the regmap_field was mistakenly given the value 32, to set all bits
in the regmap update mask; although incorrect this worked until 921cc294,
where the mask calculation was corrected.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
---
drivers/hwspinlock/qcom_hwspinlock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hwspinlock/qcom_hwspinlock.c
+++ b/drivers/hwspinlock/qcom_hwspinlock.c
@@ -123,7 +123,7 @@ static int qcom_hwspinlock_probe(struct
for (i = 0; i < QCOM_MUTEX_NUM_LOCKS; i++) {
field.reg = base + i * stride;
field.lsb = 0;
- field.msb = 32;
+ field.msb = 31;
bank->lock[i].priv = devm_regmap_field_alloc(&pdev->dev,
regmap, field);