Merge tag 'hwlock-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc...

Pull hwspinlock updates from Bjorn Andersson:
 "This removes the need for representing the Qualcomm SFPB mutex using
  an intermediate syscon node and it clean up the pm_runtime_get_sync()
  usage in the OMAP hwspinlock driver"

* tag 'hwlock-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
  hwspinlock: qcom: Add support for mmio usage to sfpb-mutex
  hwspinlock: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

diff --git a/drivers/hwspinlock/omap_hwspinlock.c b/drivers/hwspinlock/omap_hwspinlock.c
index 33eeff9..1fb3a25 100644 (file)
--- a/drivers/hwspinlock/omap_hwspinlock.c
+++ b/drivers/hwspinlock/omap_hwspinlock.c
@@ -94,11 +94,9 @@ static int omap_hwspinlock_probe(struct platform_device *pdev)
         * the module SYSSTATUS register
         */
        pm_runtime_enable(&pdev->dev);
-       ret = pm_runtime_get_sync(&pdev->dev);
-       if (ret < 0) {
-               pm_runtime_put_noidle(&pdev->dev);
+       ret = pm_runtime_resume_and_get(&pdev->dev);
+       if (ret < 0)
                goto runtime_err;
-       }
 
        /* Determine number of locks */
        i = readl(io_base + SYSSTATUS_OFFSET);

diff --git a/drivers/hwspinlock/qcom_hwspinlock.c b/drivers/hwspinlock/qcom_hwspinlock.c
index 3647109..80ea45b 100644 (file)
--- a/drivers/hwspinlock/qcom_hwspinlock.c
+++ b/drivers/hwspinlock/qcom_hwspinlock.c
@@ -19,6 +19,11 @@
 #define QCOM_MUTEX_APPS_PROC_ID        1
 #define QCOM_MUTEX_NUM_LOCKS   32
 
+struct qcom_hwspinlock_of_data {
+       u32 offset;
+       u32 stride;
+};
+
 static int qcom_hwspinlock_trylock(struct hwspinlock *lock)
 {
        struct regmap_field *field = lock->priv;
@@ -63,9 +68,20 @@ static const struct hwspinlock_ops qcom_hwspinlock_ops = {
        .unlock         = qcom_hwspinlock_unlock,
 };
 
+static const struct qcom_hwspinlock_of_data of_sfpb_mutex = {
+       .offset = 0x4,
+       .stride = 0x4,
+};
+
+/* All modern platform has offset 0 and stride of 4k */
+static const struct qcom_hwspinlock_of_data of_tcsr_mutex = {
+       .offset = 0,
+       .stride = 0x1000,
+};
+
 static const struct of_device_id qcom_hwspinlock_of_match[] = {
-       { .compatible = "qcom,sfpb-mutex" },
-       { .compatible = "qcom,tcsr-mutex" },
+       { .compatible = "qcom,sfpb-mutex", .data = &of_sfpb_mutex },
+       { .compatible = "qcom,tcsr-mutex", .data = &of_tcsr_mutex },
        { }
 };
 MODULE_DEVICE_TABLE(of, qcom_hwspinlock_of_match);
@@ -112,12 +128,14 @@ static const struct regmap_config tcsr_mutex_config = {
 static struct regmap *qcom_hwspinlock_probe_mmio(struct platform_device *pdev,
                                                 u32 *offset, u32 *stride)
 {
+       const struct qcom_hwspinlock_of_data *data;
        struct device *dev = &pdev->dev;
        void __iomem *base;
 
-       /* All modern platform has offset 0 and stride of 4k */
-       *offset = 0;
-       *stride = 0x1000;
+       data = of_device_get_match_data(dev);
+
+       *offset = data->offset;
+       *stride = data->stride;
 
        base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(base))