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authorArnd Bergmann <arnd@arndb.de>2016-04-25 23:50:41 +0200
committerArnd Bergmann <arnd@arndb.de>2016-04-25 23:50:41 +0200
commitd3e2442b51c33c77a7d409ddcec4805b7ad991c4 (patch)
tree873168f5bad4a7d6cbf4a8e7f627d98e4c6c883b /drivers/soc
parentc6ba3f693297fb900ad7435cc963abd2582b1176 (diff)
parentb853cb9628bfbcc4017da46d5f5b46e3eba9d8c6 (diff)
downloadlinux-d3e2442b51c33c77a7d409ddcec4805b7ad991c4.tar.bz2
Merge tag 'qcom-soc-for-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers
Merge "Qualcomm ARM Based SoC Updates for v4.7 part 2" from Andy Gross: * Change SMD callback parameters * Use writecombine mapping for SMEM * tag 'qcom-soc-for-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: soc: qcom: smd: Make callback pass channel reference soc: qcom: smem: Use write-combine remap for SMEM
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/qcom/smd-rpm.c9
-rw-r--r--drivers/soc/qcom/smd.c22
-rw-r--r--drivers/soc/qcom/smem.c3
-rw-r--r--drivers/soc/qcom/wcnss_ctrl.c8
4 files changed, 29 insertions, 13 deletions
diff --git a/drivers/soc/qcom/smd-rpm.c b/drivers/soc/qcom/smd-rpm.c
index 731fa066f712..6609d7e0edb0 100644
--- a/drivers/soc/qcom/smd-rpm.c
+++ b/drivers/soc/qcom/smd-rpm.c
@@ -33,6 +33,7 @@
*/
struct qcom_smd_rpm {
struct qcom_smd_channel *rpm_channel;
+ struct device *dev;
struct completion ack;
struct mutex lock;
@@ -149,14 +150,14 @@ out:
}
EXPORT_SYMBOL(qcom_rpm_smd_write);
-static int qcom_smd_rpm_callback(struct qcom_smd_device *qsdev,
+static int qcom_smd_rpm_callback(struct qcom_smd_channel *channel,
const void *data,
size_t count)
{
const struct qcom_rpm_header *hdr = data;
size_t hdr_length = le32_to_cpu(hdr->length);
const struct qcom_rpm_message *msg;
- struct qcom_smd_rpm *rpm = dev_get_drvdata(&qsdev->dev);
+ struct qcom_smd_rpm *rpm = qcom_smd_get_drvdata(channel);
const u8 *buf = data + sizeof(struct qcom_rpm_header);
const u8 *end = buf + hdr_length;
char msgbuf[32];
@@ -165,7 +166,7 @@ static int qcom_smd_rpm_callback(struct qcom_smd_device *qsdev,
if (le32_to_cpu(hdr->service_type) != RPM_SERVICE_TYPE_REQUEST ||
hdr_length < sizeof(struct qcom_rpm_message)) {
- dev_err(&qsdev->dev, "invalid request\n");
+ dev_err(rpm->dev, "invalid request\n");
return 0;
}
@@ -206,7 +207,9 @@ static int qcom_smd_rpm_probe(struct qcom_smd_device *sdev)
mutex_init(&rpm->lock);
init_completion(&rpm->ack);
+ rpm->dev = &sdev->dev;
rpm->rpm_channel = sdev->channel;
+ qcom_smd_set_drvdata(sdev->channel, rpm);
dev_set_drvdata(&sdev->dev, rpm);
diff --git a/drivers/soc/qcom/smd.c b/drivers/soc/qcom/smd.c
index b6434c4be86a..ac1957dfdf24 100644
--- a/drivers/soc/qcom/smd.c
+++ b/drivers/soc/qcom/smd.c
@@ -194,6 +194,8 @@ struct qcom_smd_channel {
int pkt_size;
+ void *drvdata;
+
struct list_head list;
struct list_head dev_list;
};
@@ -513,7 +515,6 @@ static void qcom_smd_channel_advance(struct qcom_smd_channel *channel,
*/
static int qcom_smd_channel_recv_single(struct qcom_smd_channel *channel)
{
- struct qcom_smd_device *qsdev = channel->qsdev;
unsigned tail;
size_t len;
void *ptr;
@@ -533,7 +534,7 @@ static int qcom_smd_channel_recv_single(struct qcom_smd_channel *channel)
len = channel->pkt_size;
}
- ret = channel->cb(qsdev, ptr, len);
+ ret = channel->cb(channel, ptr, len);
if (ret < 0)
return ret;
@@ -1034,6 +1035,18 @@ int qcom_smd_driver_register(struct qcom_smd_driver *qsdrv)
}
EXPORT_SYMBOL(qcom_smd_driver_register);
+void *qcom_smd_get_drvdata(struct qcom_smd_channel *channel)
+{
+ return channel->drvdata;
+}
+EXPORT_SYMBOL(qcom_smd_get_drvdata);
+
+void qcom_smd_set_drvdata(struct qcom_smd_channel *channel, void *data)
+{
+ channel->drvdata = data;
+}
+EXPORT_SYMBOL(qcom_smd_set_drvdata);
+
/**
* qcom_smd_driver_unregister - unregister a smd driver
* @qsdrv: qcom_smd_driver struct
@@ -1079,12 +1092,13 @@ qcom_smd_find_channel(struct qcom_smd_edge *edge, const char *name)
* Returns a channel handle on success, or -EPROBE_DEFER if the channel isn't
* ready.
*/
-struct qcom_smd_channel *qcom_smd_open_channel(struct qcom_smd_device *sdev,
+struct qcom_smd_channel *qcom_smd_open_channel(struct qcom_smd_channel *parent,
const char *name,
qcom_smd_cb_t cb)
{
struct qcom_smd_channel *channel;
- struct qcom_smd_edge *edge = sdev->channel->edge;
+ struct qcom_smd_device *sdev = parent->qsdev;
+ struct qcom_smd_edge *edge = parent->edge;
int ret;
/* Wait up to HZ for the channel to appear */
diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
index 19019aa092e8..2e1aa9f130f4 100644
--- a/drivers/soc/qcom/smem.c
+++ b/drivers/soc/qcom/smem.c
@@ -684,8 +684,7 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev,
smem->regions[i].aux_base = (u32)r.start;
smem->regions[i].size = resource_size(&r);
- smem->regions[i].virt_base = devm_ioremap_nocache(dev, r.start,
- resource_size(&r));
+ smem->regions[i].virt_base = devm_ioremap_wc(dev, r.start, resource_size(&r));
if (!smem->regions[i].virt_base)
return -ENOMEM;
diff --git a/drivers/soc/qcom/wcnss_ctrl.c b/drivers/soc/qcom/wcnss_ctrl.c
index 7a986f881d5c..c544f3d2c6ee 100644
--- a/drivers/soc/qcom/wcnss_ctrl.c
+++ b/drivers/soc/qcom/wcnss_ctrl.c
@@ -100,17 +100,17 @@ struct wcnss_download_nv_resp {
/**
* wcnss_ctrl_smd_callback() - handler from SMD responses
- * @qsdev: smd device handle
+ * @channel: smd channel handle
* @data: pointer to the incoming data packet
* @count: size of the incoming data packet
*
* Handles any incoming packets from the remote WCNSS_CTRL service.
*/
-static int wcnss_ctrl_smd_callback(struct qcom_smd_device *qsdev,
+static int wcnss_ctrl_smd_callback(struct qcom_smd_channel *channel,
const void *data,
size_t count)
{
- struct wcnss_ctrl *wcnss = dev_get_drvdata(&qsdev->dev);
+ struct wcnss_ctrl *wcnss = qcom_smd_get_drvdata(channel);
const struct wcnss_download_nv_resp *nvresp;
const struct wcnss_version_resp *version;
const struct wcnss_msg_hdr *hdr = data;
@@ -246,7 +246,7 @@ static int wcnss_ctrl_probe(struct qcom_smd_device *sdev)
init_completion(&wcnss->ack);
INIT_WORK(&wcnss->download_nv_work, wcnss_download_nv);
- dev_set_drvdata(&sdev->dev, wcnss);
+ qcom_smd_set_drvdata(sdev->channel, wcnss);
return wcnss_request_version(wcnss);
}