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authorOlof Johansson <olof@lixom.net>2019-04-29 09:40:30 -0700
committerOlof Johansson <olof@lixom.net>2019-04-29 09:40:30 -0700
commit782935d12ec2c942a793e90da2240093272d24ba (patch)
treef88729049d9e6a76728e273b5d53a1d537027b4f /drivers/soc
parent524feb799408e5d45c6aa82763a9f52489d1e19f (diff)
parent2616b3deaf9c5db18f78689968d4c998bda8a983 (diff)
Merge tag 'qcom-drivers-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into arm/drivers
Qualcomm ARM Based Driver Updates for v5.2 * Update MAINTAINERS for Andy Gross's new email address * Add support for mmap in RMTFS * Fixup for QMI to change txn wait to non-interruptible * Fixup for error code in probe of cmd-db * Fixup for slot number check in RMPH-RSC * tag 'qcom-drivers-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: MAINTAINERS: Update email for Qualcomm SoC maintainer drivers: soc: qcom: rpmh-rsc: Correct check for slot number soc: qcom: cmd-db: Fix an error code in cmd_db_dev_probe() soc: qcom: qmi: Change txn wait to non-interruptible soc: qcom: rmtfs: Add support for mmap functionality Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/qcom/cmd-db.c4
-rw-r--r--drivers/soc/qcom/qmi_interface.c7
-rw-r--r--drivers/soc/qcom/rmtfs_mem.c21
-rw-r--r--drivers/soc/qcom/rpmh-rsc.c2
4 files changed, 26 insertions, 8 deletions
diff --git a/drivers/soc/qcom/cmd-db.c b/drivers/soc/qcom/cmd-db.c
index c701b3b010f1..f6c3d17b05c7 100644
--- a/drivers/soc/qcom/cmd-db.c
+++ b/drivers/soc/qcom/cmd-db.c
@@ -248,8 +248,8 @@ static int cmd_db_dev_probe(struct platform_device *pdev)
}
cmd_db_header = memremap(rmem->base, rmem->size, MEMREMAP_WB);
- if (IS_ERR_OR_NULL(cmd_db_header)) {
- ret = PTR_ERR(cmd_db_header);
+ if (!cmd_db_header) {
+ ret = -ENOMEM;
cmd_db_header = NULL;
return ret;
}
diff --git a/drivers/soc/qcom/qmi_interface.c b/drivers/soc/qcom/qmi_interface.c
index c239a28e503f..f9e309f0acd3 100644
--- a/drivers/soc/qcom/qmi_interface.c
+++ b/drivers/soc/qcom/qmi_interface.c
@@ -345,8 +345,7 @@ int qmi_txn_wait(struct qmi_txn *txn, unsigned long timeout)
struct qmi_handle *qmi = txn->qmi;
int ret;
- ret = wait_for_completion_interruptible_timeout(&txn->completion,
- timeout);
+ ret = wait_for_completion_timeout(&txn->completion, timeout);
mutex_lock(&qmi->txn_lock);
mutex_lock(&txn->lock);
@@ -354,9 +353,7 @@ int qmi_txn_wait(struct qmi_txn *txn, unsigned long timeout)
mutex_unlock(&txn->lock);
mutex_unlock(&qmi->txn_lock);
- if (ret < 0)
- return ret;
- else if (ret == 0)
+ if (ret == 0)
return -ETIMEDOUT;
else
return txn->result;
diff --git a/drivers/soc/qcom/rmtfs_mem.c b/drivers/soc/qcom/rmtfs_mem.c
index 7200d762a951..6f5e8be9689c 100644
--- a/drivers/soc/qcom/rmtfs_mem.c
+++ b/drivers/soc/qcom/rmtfs_mem.c
@@ -137,6 +137,26 @@ static struct class rmtfs_class = {
.name = "rmtfs",
};
+static int qcom_rmtfs_mem_mmap(struct file *filep, struct vm_area_struct *vma)
+{
+ struct qcom_rmtfs_mem *rmtfs_mem = filep->private_data;
+
+ if (vma->vm_end - vma->vm_start > rmtfs_mem->size) {
+ dev_dbg(&rmtfs_mem->dev,
+ "vm_end[%lu] - vm_start[%lu] [%lu] > mem->size[%pa]\n",
+ vma->vm_end, vma->vm_start,
+ (vma->vm_end - vma->vm_start), &rmtfs_mem->size);
+ return -EINVAL;
+ }
+
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ return remap_pfn_range(vma,
+ vma->vm_start,
+ rmtfs_mem->addr >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot);
+}
+
static const struct file_operations qcom_rmtfs_mem_fops = {
.owner = THIS_MODULE,
.open = qcom_rmtfs_mem_open,
@@ -144,6 +164,7 @@ static const struct file_operations qcom_rmtfs_mem_fops = {
.write = qcom_rmtfs_mem_write,
.release = qcom_rmtfs_mem_release,
.llseek = default_llseek,
+ .mmap = qcom_rmtfs_mem_mmap,
};
static void qcom_rmtfs_mem_release_device(struct device *dev)
diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 75bd9a83aef0..e278fc11fe5c 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -459,7 +459,7 @@ static int find_slots(struct tcs_group *tcs, const struct tcs_request *msg,
do {
slot = bitmap_find_next_zero_area(tcs->slots, MAX_TCS_SLOTS,
i, msg->num_cmds, 0);
- if (slot == tcs->num_tcs * tcs->ncpt)
+ if (slot >= tcs->num_tcs * tcs->ncpt)
return -ENOMEM;
i += tcs->ncpt;
} while (slot + msg->num_cmds - 1 >= i);