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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
43 lines
1.2 KiB
Diff
43 lines
1.2 KiB
Diff
From 7458efc95816cc9d716d94a4894172c2a9d9fba7 Mon Sep 17 00:00:00 2001
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From: Lukas Wunner <lukas@wunner.de>
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Date: Wed, 16 Jan 2019 12:22:32 +0100
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Subject: [PATCH] bcm2835-mmc: Fix DMA channel leak
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The BCM2835 MMC host driver requests a DMA channel on probe but neglects
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to release the channel in the probe error path and on driver unbind.
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I'm seeing this happen on every boot of the Compute Module 3: On first
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driver probe, DMA channel 2 is allocated and then leaked with a "could
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not get clk, deferring probe" message. On second driver probe, channel 4
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is allocated.
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Fix it.
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Signed-off-by: Lukas Wunner <lukas@wunner.de>
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Cc: Frank Pavlic <f.pavlic@kunbus.de>
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---
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drivers/mmc/host/bcm2835-mmc.c | 5 +++++
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1 file changed, 5 insertions(+)
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--- a/drivers/mmc/host/bcm2835-mmc.c
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+++ b/drivers/mmc/host/bcm2835-mmc.c
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@@ -1503,6 +1503,8 @@ static int bcm2835_mmc_probe(struct plat
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return 0;
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err:
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+ if (host->dma_chan_rxtx)
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+ dma_release_channel(host->dma_chan_rxtx);
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mmc_free_host(mmc);
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return ret;
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@@ -1548,6 +1550,9 @@ static int bcm2835_mmc_remove(struct pla
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tasklet_kill(&host->finish_tasklet);
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+ if (host->dma_chan_rxtx)
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+ dma_release_channel(host->dma_chan_rxtx);
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+
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mmc_free_host(host->mmc);
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platform_set_drvdata(pdev, NULL);
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