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path: root/drivers/mailbox/mailbox-test.c
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Diffstat (limited to 'drivers/mailbox/mailbox-test.c')
-rw-r--r--drivers/mailbox/mailbox-test.c53
1 files changed, 31 insertions, 22 deletions
diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
index 684ae17dcf39..dc11bbf27274 100644
--- a/drivers/mailbox/mailbox-test.c
+++ b/drivers/mailbox/mailbox-test.c
@@ -31,7 +31,8 @@ static struct dentry *root_debugfs_dir;
struct mbox_test_device {
struct device *dev;
- void __iomem *mmio;
+ void __iomem *tx_mmio;
+ void __iomem *rx_mmio;
struct mbox_chan *tx_channel;
struct mbox_chan *rx_channel;
char *rx_buffer;
@@ -112,16 +113,16 @@ static ssize_t mbox_test_message_write(struct file *filp,
* A separate signal is only of use if there is
* MMIO to subsequently pass the message through
*/
- if (tdev->mmio && tdev->signal) {
- print_hex_dump(KERN_INFO, "Client: Sending: Signal: ", DUMP_PREFIX_ADDRESS,
- MBOX_BYTES_PER_LINE, 1, tdev->signal, MBOX_MAX_SIG_LEN, true);
+ if (tdev->tx_mmio && tdev->signal) {
+ print_hex_dump_bytes("Client: Sending: Signal: ", DUMP_PREFIX_ADDRESS,
+ tdev->signal, MBOX_MAX_SIG_LEN);
data = tdev->signal;
} else
data = tdev->message;
- print_hex_dump(KERN_INFO, "Client: Sending: Message: ", DUMP_PREFIX_ADDRESS,
- MBOX_BYTES_PER_LINE, 1, tdev->message, MBOX_MAX_MSG_LEN, true);
+ print_hex_dump_bytes("Client: Sending: Message: ", DUMP_PREFIX_ADDRESS,
+ tdev->message, MBOX_MAX_MSG_LEN);
ret = mbox_send_message(tdev->tx_channel, data);
if (ret < 0)
@@ -220,15 +221,13 @@ static void mbox_test_receive_message(struct mbox_client *client, void *message)
unsigned long flags;
spin_lock_irqsave(&tdev->lock, flags);
- if (tdev->mmio) {
- memcpy_fromio(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
- print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
- DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
- tdev->rx_buffer, MBOX_MAX_MSG_LEN, true);
+ if (tdev->rx_mmio) {
+ memcpy_fromio(tdev->rx_buffer, tdev->rx_mmio, MBOX_MAX_MSG_LEN);
+ print_hex_dump_bytes("Client: Received [MMIO]: ", DUMP_PREFIX_ADDRESS,
+ tdev->rx_buffer, MBOX_MAX_MSG_LEN);
} else if (message) {
- print_hex_dump(KERN_INFO, "Client: Received [API]: ",
- DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
- message, MBOX_MAX_MSG_LEN, true);
+ print_hex_dump_bytes("Client: Received [API]: ", DUMP_PREFIX_ADDRESS,
+ message, MBOX_MAX_MSG_LEN);
memcpy(tdev->rx_buffer, message, MBOX_MAX_MSG_LEN);
}
spin_unlock_irqrestore(&tdev->lock, flags);
@@ -238,11 +237,11 @@ static void mbox_test_prepare_message(struct mbox_client *client, void *message)
{
struct mbox_test_device *tdev = dev_get_drvdata(client->dev);
- if (tdev->mmio) {
+ if (tdev->tx_mmio) {
if (tdev->signal)
- memcpy_toio(tdev->mmio, tdev->message, MBOX_MAX_MSG_LEN);
+ memcpy_toio(tdev->tx_mmio, tdev->message, MBOX_MAX_MSG_LEN);
else
- memcpy_toio(tdev->mmio, message, MBOX_MAX_MSG_LEN);
+ memcpy_toio(tdev->tx_mmio, message, MBOX_MAX_MSG_LEN);
}
}
@@ -296,9 +295,15 @@ static int mbox_test_probe(struct platform_device *pdev)
/* It's okay for MMIO to be NULL */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- tdev->mmio = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(tdev->mmio))
- tdev->mmio = NULL;
+ tdev->tx_mmio = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(tdev->tx_mmio))
+ tdev->tx_mmio = NULL;
+
+ /* If specified, second reg entry is Rx MMIO */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ tdev->rx_mmio = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(tdev->rx_mmio))
+ tdev->rx_mmio = tdev->tx_mmio;
tdev->tx_channel = mbox_test_request_channel(pdev, "tx");
tdev->rx_channel = mbox_test_request_channel(pdev, "rx");
@@ -306,6 +311,10 @@ static int mbox_test_probe(struct platform_device *pdev)
if (!tdev->tx_channel && !tdev->rx_channel)
return -EPROBE_DEFER;
+ /* If Rx is not specified but has Rx MMIO, then Rx = Tx */
+ if (!tdev->rx_channel && (tdev->rx_mmio != tdev->tx_mmio))
+ tdev->rx_channel = tdev->tx_channel;
+
tdev->dev = &pdev->dev;
platform_set_drvdata(pdev, tdev);
@@ -342,13 +351,13 @@ static int mbox_test_remove(struct platform_device *pdev)
}
static const struct of_device_id mbox_test_match[] = {
- { .compatible = "mailbox_test" },
+ { .compatible = "mailbox-test" },
{},
};
static struct platform_driver mbox_test_driver = {
.driver = {
- .name = "mailbox_sti_test",
+ .name = "mailbox_test",
.of_match_table = mbox_test_match,
},
.probe = mbox_test_probe,