Re: [PATCH 4/4] mailbox: mailbox-test: add support for separate tx/rx buffer with single channel

From: Sudeep Holla
Date: Fri Feb 12 2016 - 04:34:15 EST




On 12/02/16 09:15, Lee Jones wrote:
On Thu, 11 Feb 2016, Sudeep Holla wrote:


[...]

@@ -294,9 +295,13 @@ 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;

Nit: I'd prefer to see a new line separator here.


OK will add it

+ 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");
@@ -304,6 +309,9 @@ static int mbox_test_probe(struct platform_device *pdev)
if (!tdev->tx_channel && !tdev->rx_channel)
return -EPROBE_DEFER;

+ 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);

Otherwise code looks good. Nice extension.


Thanks for the review.

Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>


--
Regards,
Sudeep