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011f2c26f1
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
From 4b40f23d8afba2fe227e515d0c793e95530350b2 Mon Sep 17 00:00:00 2001
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From: popcornmix <popcornmix@gmail.com>
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Date: Mon, 14 Nov 2016 17:46:54 +0000
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Subject: [PATCH] brcmvirt_gpio: Pass device structure into dma_zalloc_coherent
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---
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drivers/gpio/gpio-bcm-virt.c | 9 +++++----
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1 file changed, 5 insertions(+), 4 deletions(-)
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--- a/drivers/gpio/gpio-bcm-virt.c
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+++ b/drivers/gpio/gpio-bcm-virt.c
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@@ -102,7 +102,7 @@ static int brcmvirt_gpio_probe(struct pl
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goto out;
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}
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- ucb->ts_base = dma_zalloc_coherent(NULL, PAGE_SIZE, &ucb->bus_addr, GFP_KERNEL);
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+ ucb->ts_base = dma_zalloc_coherent(dev, PAGE_SIZE, &ucb->bus_addr, GFP_KERNEL);
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if (!ucb->ts_base) {
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pr_err("[%s]: failed to dma_alloc_coherent(%ld)\n",
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__func__, PAGE_SIZE);
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@@ -116,7 +116,7 @@ static int brcmvirt_gpio_probe(struct pl
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if (err || gpiovirtbuf != 0) {
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dev_warn(dev, "Failed to set gpiovirtbuf, trying to get err:%x\n", err);
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- dma_free_coherent(NULL, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
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+ dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
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ucb->ts_base = 0;
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ucb->bus_addr = 0;
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}
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@@ -168,7 +168,7 @@ static int brcmvirt_gpio_probe(struct pl
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return 0;
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out:
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if (ucb->bus_addr) {
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- dma_free_coherent(NULL, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
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+ dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
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ucb->bus_addr = 0;
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ucb->ts_base = NULL;
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} else if (ucb->ts_base) {
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@@ -180,12 +180,13 @@ out:
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static int brcmvirt_gpio_remove(struct platform_device *pdev)
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{
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+ struct device *dev = &pdev->dev;
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int err = 0;
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struct brcmvirt_gpio *ucb = platform_get_drvdata(pdev);
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gpiochip_remove(&ucb->gc);
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if (ucb->bus_addr)
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- dma_free_coherent(NULL, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
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+ dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
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else if (ucb->ts_base)
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iounmap(ucb->ts_base);
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return err;
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