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Merge branch 'topic/dmaengine_cleanups' into for-linus

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This commit is contained in:
Vinod Koul 2016-07-28 10:10:37 +05:30
commit 4bb0439626
23 changed files with 222 additions and 23 deletions
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30
drivers/dma/coh901318.c
View File

@ -266,7 +266,7 @@ static int dma_memcpy_channels[] = {
COH901318_CX_CTRL_DDMA_LEGACY | \
COH901318_CX_CTRL_PRDD_SOURCE)
const struct coh_dma_channel chan_config[U300_DMA_CHANNELS] = {
static const struct coh_dma_channel chan_config[U300_DMA_CHANNELS] = {
{
.number = U300_DMA_MSL_TX_0,
.name = "MSL TX 0",
@ -1280,6 +1280,7 @@ struct coh901318_desc {
struct coh901318_base {
struct device *dev;
void __iomem *virtbase;
unsigned int irq;
struct coh901318_pool pool;
struct powersave pm;
struct dma_device dma_slave;
@ -1364,7 +1365,6 @@ static int coh901318_debugfs_read(struct file *file, char __user *buf,
}
static const struct file_operations coh901318_debugfs_status_operations = {
.owner = THIS_MODULE,
.open = simple_open,
.read = coh901318_debugfs_read,
.llseek = default_llseek,
@ -2680,6 +2680,8 @@ static int __init coh901318_probe(struct platform_device *pdev)
if (err)
return err;
base->irq = irq;
err = coh901318_pool_create(&base->pool, &pdev->dev,
sizeof(struct coh901318_lli),
32);
@ -2755,11 +2757,31 @@ static int __init coh901318_probe(struct platform_device *pdev)
coh901318_pool_destroy(&base->pool);
return err;
}
static void coh901318_base_remove(struct coh901318_base *base, const int *pick_chans)
{
int chans_i;
int i = 0;
struct coh901318_chan *cohc;
for (chans_i = 0; pick_chans[chans_i] != -1; chans_i += 2) {
for (i = pick_chans[chans_i]; i <= pick_chans[chans_i+1]; i++) {
cohc = &base->chans[i];
tasklet_kill(&cohc->tasklet);
}
}
}
static int coh901318_remove(struct platform_device *pdev)
{
struct coh901318_base *base = platform_get_drvdata(pdev);
devm_free_irq(&pdev->dev, base->irq, base);
coh901318_base_remove(base, dma_slave_channels);
coh901318_base_remove(base, dma_memcpy_channels);
of_dma_controller_free(pdev->dev.of_node);
dma_async_device_unregister(&base->dma_memcpy);
dma_async_device_unregister(&base->dma_slave);
@ -2780,13 +2802,13 @@ static struct platform_driver coh901318_driver = {
},
};
int __init coh901318_init(void)
static int __init coh901318_init(void)
{
return platform_driver_probe(&coh901318_driver, coh901318_probe);
}
subsys_initcall(coh901318_init);
void __exit coh901318_exit(void)
static void __exit coh901318_exit(void)
{
platform_driver_unregister(&coh901318_driver);
}

3
drivers/dma/cppi41.c
View File

@ -497,16 +497,13 @@ static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg(
struct cppi41_desc *d;
struct scatterlist *sg;
unsigned int i;
unsigned int num;
num = 0;
d = c->desc;
for_each_sg(sgl, sg, sg_len, i) {
u32 addr;
u32 len;
/* We need to use more than one desc once musb supports sg */
BUG_ON(num > 0);
addr = lower_32_bits(sg_dma_address(sg));
len = sg_dma_len(sg);

14
drivers/dma/dma-jz4740.c
View File

@ -573,12 +573,26 @@ err_unregister:
return ret;
}
static void jz4740_cleanup_vchan(struct dma_device *dmadev)
{
struct jz4740_dmaengine_chan *chan, *_chan;
list_for_each_entry_safe(chan, _chan,
&dmadev->channels, vchan.chan.device_node) {
list_del(&chan->vchan.chan.device_node);
tasklet_kill(&chan->vchan.task);
}
}
static int jz4740_dma_remove(struct platform_device *pdev)
{
struct jz4740_dma_dev *dmadev = platform_get_drvdata(pdev);
int irq = platform_get_irq(pdev, 0);
free_irq(irq, dmadev);
jz4740_cleanup_vchan(&dmadev->ddev);
dma_async_device_unregister(&dmadev->ddev);
clk_disable_unprepare(dmadev->clk);

21
drivers/dma/edma.c
View File

@ -239,6 +239,9 @@ struct edma_cc {
bool chmap_exist;
enum dma_event_q default_queue;
unsigned int ccint;
unsigned int ccerrint;
/*
* The slot_inuse bit for each PaRAM slot is clear unless the slot is
* in use by Linux or if it is allocated to be used by DSP.
@ -2283,6 +2286,7 @@ static int edma_probe(struct platform_device *pdev)
dev_err(dev, "CCINT (%d) failed --> %d\n", irq, ret);
return ret;
}
ecc->ccint = irq;
}
irq = platform_get_irq_byname(pdev, "edma3_ccerrint");
@ -2298,6 +2302,7 @@ static int edma_probe(struct platform_device *pdev)
dev_err(dev, "CCERRINT (%d) failed --> %d\n", irq, ret);
return ret;
}
ecc->ccerrint = irq;
}
ecc->dummy_slot = edma_alloc_slot(ecc, EDMA_SLOT_ANY);
@ -2388,11 +2393,27 @@ err_reg1:
return ret;
}
static void edma_cleanupp_vchan(struct dma_device *dmadev)
{
struct edma_chan *echan, *_echan;
list_for_each_entry_safe(echan, _echan,
&dmadev->channels, vchan.chan.device_node) {
list_del(&echan->vchan.chan.device_node);
tasklet_kill(&echan->vchan.task);
}
}
static int edma_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct edma_cc *ecc = dev_get_drvdata(dev);
devm_free_irq(dev, ecc->ccint, ecc);
devm_free_irq(dev, ecc->ccerrint, ecc);
edma_cleanupp_vchan(&ecc->dma_slave);
if (dev->of_node)
of_dma_controller_free(dev->of_node);
dma_async_device_unregister(&ecc->dma_slave);

24
drivers/dma/fsl-edma.c
View File

@ -852,6 +852,17 @@ fsl_edma_irq_init(struct platform_device *pdev, struct fsl_edma_engine *fsl_edma
return 0;
}
static void fsl_edma_irq_exit(
struct platform_device *pdev, struct fsl_edma_engine *fsl_edma)
{
if (fsl_edma->txirq == fsl_edma->errirq) {
devm_free_irq(&pdev->dev, fsl_edma->txirq, fsl_edma);
} else {
devm_free_irq(&pdev->dev, fsl_edma->txirq, fsl_edma);
devm_free_irq(&pdev->dev, fsl_edma->errirq, fsl_edma);
}
}
static void fsl_disable_clocks(struct fsl_edma_engine *fsl_edma)
{
int i;
@ -984,11 +995,24 @@ static int fsl_edma_probe(struct platform_device *pdev)
return 0;
}
static void fsl_edma_cleanup_vchan(struct dma_device *dmadev)
{
struct fsl_edma_chan *chan, *_chan;
list_for_each_entry_safe(chan, _chan,
&dmadev->channels, vchan.chan.device_node) {
list_del(&chan->vchan.chan.device_node);
tasklet_kill(&chan->vchan.task);
}
}
static int fsl_edma_remove(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct fsl_edma_engine *fsl_edma = platform_get_drvdata(pdev);
fsl_edma_irq_exit(pdev, fsl_edma);
fsl_edma_cleanup_vchan(&fsl_edma->dma_dev);
of_dma_controller_free(np);
dma_async_device_unregister(&fsl_edma->dma_dev);
fsl_disable_clocks(fsl_edma);

9
drivers/dma/fsl_raid.c
View File

@ -337,7 +337,7 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_genq(
re_chan = container_of(chan, struct fsl_re_chan, chan);
if (len > FSL_RE_MAX_DATA_LEN) {
dev_err(re_chan->dev, "genq tx length %lu, max length %d\n",
dev_err(re_chan->dev, "genq tx length %zu, max length %d\n",
len, FSL_RE_MAX_DATA_LEN);
return NULL;
}
@ -424,7 +424,7 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_pq(
re_chan = container_of(chan, struct fsl_re_chan, chan);
if (len > FSL_RE_MAX_DATA_LEN) {
dev_err(re_chan->dev, "pq tx length is %lu, max length is %d\n",
dev_err(re_chan->dev, "pq tx length is %zu, max length is %d\n",
len, FSL_RE_MAX_DATA_LEN);
return NULL;
}
@ -545,7 +545,7 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_memcpy(
re_chan = container_of(chan, struct fsl_re_chan, chan);
if (len > FSL_RE_MAX_DATA_LEN) {
dev_err(re_chan->dev, "cp tx length is %lu, max length is %d\n",
dev_err(re_chan->dev, "cp tx length is %zu, max length is %d\n",
len, FSL_RE_MAX_DATA_LEN);
return NULL;
}
@ -856,6 +856,8 @@ static int fsl_re_probe(struct platform_device *ofdev)
static void fsl_re_remove_chan(struct fsl_re_chan *chan)
{
tasklet_kill(&chan->irqtask);
dma_pool_free(chan->re_dev->hw_desc_pool, chan->inb_ring_virt_addr,
chan->inb_phys_addr);
@ -890,7 +892,6 @@ static struct of_device_id fsl_re_ids[] = {
static struct platform_driver fsl_re_driver = {
.driver = {
.name = "fsl-raideng",
.owner = THIS_MODULE,
.of_match_table = fsl_re_ids,
},
.probe = fsl_re_probe,

31
drivers/dma/imx-dma.c
View File

@ -167,6 +167,7 @@ struct imxdma_channel {
u32 ccr_to_device;
bool enabled_2d;
int slot_2d;
unsigned int irq;
};
enum imx_dma_type {
@ -186,6 +187,9 @@ struct imxdma_engine {
struct imx_dma_2d_config slots_2d[IMX_DMA_2D_SLOTS];
struct imxdma_channel channel[IMX_DMA_CHANNELS];
enum imx_dma_type devtype;
unsigned int irq;
unsigned int irq_err;
};
struct imxdma_filter_data {
@ -1048,7 +1052,7 @@ static struct dma_chan *imxdma_xlate(struct of_phandle_args *dma_spec,
}
static int __init imxdma_probe(struct platform_device *pdev)
{
{
struct imxdma_engine *imxdma;
struct resource *res;
const struct of_device_id *of_id;
@ -1100,6 +1104,7 @@ static int __init imxdma_probe(struct platform_device *pdev)
dev_warn(imxdma->dev, "Can't register IRQ for DMA\n");
goto disable_dma_ahb_clk;
}
imxdma->irq = irq;
irq_err = platform_get_irq(pdev, 1);
if (irq_err < 0) {
@ -1113,6 +1118,7 @@ static int __init imxdma_probe(struct platform_device *pdev)
dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n");
goto disable_dma_ahb_clk;
}
imxdma->irq_err = irq_err;
}
/* enable DMA module */
@ -1150,6 +1156,8 @@ static int __init imxdma_probe(struct platform_device *pdev)
irq + i, i);
goto disable_dma_ahb_clk;
}
imxdmac->irq = irq + i;
init_timer(&imxdmac->watchdog);
imxdmac->watchdog.function = &imxdma_watchdog;
imxdmac->watchdog.data = (unsigned long)imxdmac;
@ -1217,10 +1225,31 @@ disable_dma_ipg_clk:
return ret;
}
static void imxdma_free_irq(struct platform_device *pdev, struct imxdma_engine *imxdma)
{
int i;
if (is_imx1_dma(imxdma)) {
disable_irq(imxdma->irq);
disable_irq(imxdma->irq_err);
}
for (i = 0; i < IMX_DMA_CHANNELS; i++) {
struct imxdma_channel *imxdmac = &imxdma->channel[i];
if (!is_imx1_dma(imxdma))
disable_irq(imxdmac->irq);
tasklet_kill(&imxdmac->dma_tasklet);
}
}
static int imxdma_remove(struct platform_device *pdev)
{
struct imxdma_engine *imxdma = platform_get_drvdata(pdev);
imxdma_free_irq(pdev, imxdma);
dma_async_device_unregister(&imxdma->dma_device);
if (pdev->dev.of_node)

9
drivers/dma/imx-sdma.c
View File

@ -386,6 +386,7 @@ struct sdma_engine {
const struct sdma_driver_data *drvdata;
u32 spba_start_addr;
u32 spba_end_addr;
unsigned int irq;
};
static struct sdma_driver_data sdma_imx31 = {
@ -751,7 +752,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
* These are needed once we start to support transfers between
* two peripherals or memory-to-memory transfers
*/
int per_2_per = 0, emi_2_emi = 0;
int per_2_per = 0;
sdmac->pc_from_device = 0;
sdmac->pc_to_device = 0;
@ -759,7 +760,6 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
switch (peripheral_type) {
case IMX_DMATYPE_MEMORY:
emi_2_emi = sdma->script_addrs->ap_2_ap_addr;
break;
case IMX_DMATYPE_DSP:
emi_2_per = sdma->script_addrs->bp_2_ap_addr;
@ -992,8 +992,6 @@ static int sdma_config_channel(struct dma_chan *chan)
} else
__set_bit(sdmac->event_id0, sdmac->event_mask);
/* Watermark Level */
sdmac->watermark_level |= sdmac->watermark_level;
/* Address */
sdmac->shp_addr = sdmac->per_address;
sdmac->per_addr = sdmac->per_address2;
@ -1708,6 +1706,8 @@ static int sdma_probe(struct platform_device *pdev)
if (ret)
return ret;
sdma->irq = irq;
sdma->script_addrs = kzalloc(sizeof(*sdma->script_addrs), GFP_KERNEL);
if (!sdma->script_addrs)
return -ENOMEM;
@ -1833,6 +1833,7 @@ static int sdma_remove(struct platform_device *pdev)
struct sdma_engine *sdma = platform_get_drvdata(pdev);
int i;
devm_free_irq(&pdev->dev, sdma->irq, sdma);
dma_async_device_unregister(&sdma->dma_device);
kfree(sdma->script_addrs);
/* Kill the tasklet */

2
drivers/dma/ioat/init.c
View File

@ -1212,7 +1212,7 @@ static void ioat_shutdown(struct pci_dev *pdev)
ioat_disable_interrupts(ioat_dma);
}
void ioat_resume(struct ioatdma_device *ioat_dma)
static void ioat_resume(struct ioatdma_device *ioat_dma)
{
struct ioatdma_chan *ioat_chan;
u32 chanerr;

5
drivers/dma/k3dma.c
View File

@ -102,6 +102,7 @@ struct k3_dma_dev {
struct clk *clk;
u32 dma_channels;
u32 dma_requests;
unsigned int irq;
};
#define to_k3_dma(dmadev) container_of(dmadev, struct k3_dma_dev, slave)
@ -703,6 +704,8 @@ static int k3_dma_probe(struct platform_device *op)
if (ret)
return ret;
d->irq = irq;
/* init phy channel */
d->phy = devm_kzalloc(&op->dev,
d->dma_channels * sizeof(struct k3_dma_phy), GFP_KERNEL);
@ -787,6 +790,8 @@ static int k3_dma_remove(struct platform_device *op)
dma_async_device_unregister(&d->slave);
of_dma_controller_free((&op->dev)->of_node);
devm_free_irq(&op->dev, d->irq, d);
list_for_each_entry_safe(c, cn, &d->slave.channels, vc.chan.device_node) {
list_del(&c->vc.chan.device_node);
tasklet_kill(&c->vc.task);

19
drivers/dma/mmp_pdma.c
View File

@ -931,6 +931,25 @@ static void dma_do_tasklet(unsigned long data)
static int mmp_pdma_remove(struct platform_device *op)
{
struct mmp_pdma_device *pdev = platform_get_drvdata(op);
struct mmp_pdma_phy *phy;
int i, irq = 0, irq_num = 0;
for (i = 0; i < pdev->dma_channels; i++) {
if (platform_get_irq(op, i) > 0)
irq_num++;
}
if (irq_num != pdev->dma_channels) {
irq = platform_get_irq(op, 0);
devm_free_irq(&op->dev, irq, pdev);
} else {
for (i = 0; i < pdev->dma_channels; i++) {
phy = &pdev->phy[i];
irq = platform_get_irq(op, i);
devm_free_irq(&op->dev, irq, phy);
}
}
dma_async_device_unregister(&pdev->device);
return 0;

4
drivers/dma/mmp_tdma.c
View File

@ -404,7 +404,7 @@ static void mmp_tdma_free_chan_resources(struct dma_chan *chan)
return;
}
struct mmp_tdma_desc *mmp_tdma_alloc_descriptor(struct mmp_tdma_chan *tdmac)
static struct mmp_tdma_desc *mmp_tdma_alloc_descriptor(struct mmp_tdma_chan *tdmac)
{
struct gen_pool *gpool;
int size = tdmac->desc_num * sizeof(struct mmp_tdma_desc);
@ -592,7 +592,7 @@ static bool mmp_tdma_filter_fn(struct dma_chan *chan, void *fn_param)
return true;
}
struct dma_chan *mmp_tdma_xlate(struct of_phandle_args *dma_spec,
static struct dma_chan *mmp_tdma_xlate(struct of_phandle_args *dma_spec,
struct of_dma *ofdma)
{
struct mmp_tdma_device *tdev = ofdma->of_dma_data;

4
drivers/dma/moxart-dma.c
View File

@ -148,6 +148,7 @@ struct moxart_chan {
struct moxart_dmadev {
struct dma_device dma_slave;
struct moxart_chan slave_chans[APB_DMA_MAX_CHANNEL];
unsigned int irq;
};
struct moxart_filter_data {
@ -615,6 +616,7 @@ static int moxart_probe(struct platform_device *pdev)
dev_err(dev, "devm_request_irq failed\n");
return ret;
}
mdc->irq = irq;
ret = dma_async_device_register(&mdc->dma_slave);
if (ret) {
@ -638,6 +640,8 @@ static int moxart_remove(struct platform_device *pdev)
{
struct moxart_dmadev *m = platform_get_drvdata(pdev);
devm_free_irq(&pdev->dev, m->irq, m);
dma_async_device_unregister(&m->dma_slave);
if (pdev->dev.of_node)

1
drivers/dma/mpc512x_dma.c
View File

@ -1110,6 +1110,7 @@ static int mpc_dma_remove(struct platform_device *op)
}
free_irq(mdma->irq, mdma);
irq_dispose_mapping(mdma->irq);
tasklet_kill(&mdma->tasklet);
return 0;
}

13
drivers/dma/nbpfaxi.c
View File

@ -227,6 +227,7 @@ struct nbpf_device {
void __iomem *base;
struct clk *clk;
const struct nbpf_config *config;
unsigned int eirq;
struct nbpf_channel chan[];
};
@ -1375,6 +1376,7 @@ static int nbpf_probe(struct platform_device *pdev)
IRQF_SHARED, "dma error", nbpf);
if (ret < 0)
return ret;
nbpf->eirq = eirq;
INIT_LIST_HEAD(&dma_dev->channels);
@ -1446,6 +1448,17 @@ e_clk_off:
static int nbpf_remove(struct platform_device *pdev)
{
struct nbpf_device *nbpf = platform_get_drvdata(pdev);
int i;
devm_free_irq(&pdev->dev, nbpf->eirq, nbpf);
for (i = 0; i < nbpf->config->num_channels; i++) {
struct nbpf_channel *chan = nbpf->chan + i;
devm_free_irq(&pdev->dev, chan->irq, chan);
tasklet_kill(&chan->tasklet);
}
of_dma_controller_free(pdev->dev.of_node);
dma_async_device_unregister(&nbpf->dma_dev);

4
drivers/dma/omap-dma.c
View File

@ -1292,10 +1292,14 @@ static int omap_dma_probe(struct platform_device *pdev)
static int omap_dma_remove(struct platform_device *pdev)
{
struct omap_dmadev *od = platform_get_drvdata(pdev);
int irq;
if (pdev->dev.of_node)
of_dma_controller_free(pdev->dev.of_node);
irq = platform_get_irq(pdev, 1);
devm_free_irq(&pdev->dev, irq, od);
dma_async_device_unregister(&od->ddev);
if (!od->legacy) {

6
drivers/dma/pl330.c
View File

@ -3002,12 +3002,18 @@ static int pl330_remove(struct amba_device *adev)
{
struct pl330_dmac *pl330 = amba_get_drvdata(adev);
struct dma_pl330_chan *pch, *_p;
int i, irq;
pm_runtime_get_noresume(pl330->ddma.dev);
if (adev->dev.of_node)
of_dma_controller_free(adev->dev.of_node);
for (i = 0; i < AMBA_NR_IRQS; i++) {
irq = adev->irq[i];
devm_free_irq(&adev->dev, irq, pl330);
}
dma_async_device_unregister(&pl330->ddma);
/* Idle the DMAC */

16
drivers/dma/pxa_dma.c
View File

@ -21,6 +21,7 @@
#include <linux/of_device.h>
#include <linux/of_dma.h>
#include <linux/of.h>
#include <linux/wait.h>
#include <linux/dma/pxa-dma.h>
#include "dmaengine.h"
@ -118,6 +119,8 @@ struct pxad_chan {
struct pxad_phy *phy;
struct dma_pool *desc_pool; /* Descriptors pool */
dma_cookie_t bus_error;
wait_queue_head_t wq_state;
};
struct pxad_device {
@ -318,7 +321,6 @@ static int dbg_open_##name(struct inode *inode, struct file *file) \
return single_open(file, dbg_show_##name, inode->i_private); \
} \
static const struct file_operations dbg_fops_##name = { \
.owner = THIS_MODULE, \
.open = dbg_open_##name, \
.llseek = seq_lseek, \
.read = seq_read, \
@ -572,6 +574,7 @@ static void pxad_launch_chan(struct pxad_chan *chan,
*/
phy_writel(chan->phy, desc->first, DDADR);
phy_enable(chan->phy, chan->misaligned);
wake_up(&chan->wq_state);
}
static void set_updater_desc(struct pxad_desc_sw *sw_desc,
@ -717,6 +720,7 @@ static irqreturn_t pxad_chan_handler(int irq, void *dev_id)
}
}
spin_unlock_irqrestore(&chan->vc.lock, flags);
wake_up(&chan->wq_state);
return IRQ_HANDLED;
}
@ -1268,6 +1272,14 @@ static enum dma_status pxad_tx_status(struct dma_chan *dchan,
return ret;
}
static void pxad_synchronize(struct dma_chan *dchan)
{
struct pxad_chan *chan = to_pxad_chan(dchan);
wait_event(chan->wq_state, !is_chan_running(chan));
vchan_synchronize(&chan->vc);
}
static void pxad_free_channels(struct dma_device *dmadev)
{
struct pxad_chan *c, *cn;
@ -1372,6 +1384,7 @@ static int pxad_init_dmadev(struct platform_device *op,
pdev->slave.device_tx_status = pxad_tx_status;
pdev->slave.device_issue_pending = pxad_issue_pending;
pdev->slave.device_config = pxad_config;
pdev->slave.device_synchronize = pxad_synchronize;
pdev->slave.device_terminate_all = pxad_terminate_all;
if (op->dev.coherent_dma_mask)
@ -1389,6 +1402,7 @@ static int pxad_init_dmadev(struct platform_device *op,
return -ENOMEM;
c->vc.desc_free = pxad_free_desc;
vchan_init(&c->vc, &pdev->slave);
init_waitqueue_head(&c->wq_state);
}
return dma_async_device_register(&pdev->slave);

1
drivers/dma/qcom/hidma.c
View File

@ -708,6 +708,7 @@ static int hidma_remove(struct platform_device *pdev)
pm_runtime_get_sync(dmadev->ddev.dev);
dma_async_device_unregister(&dmadev->ddev);
devm_free_irq(dmadev->ddev.dev, dmadev->irq, dmadev->lldev);
tasklet_kill(&dmadev->task);
hidma_debug_uninit(dmadev);
hidma_ll_uninit(dmadev->lldev);
hidma_free(dmadev);

1
drivers/dma/qcom/hidma_ll.c
View File

@ -831,6 +831,7 @@ int hidma_ll_uninit(struct hidma_lldev *lldev)
required_bytes = sizeof(struct hidma_tre) * lldev->nr_tres;
tasklet_kill(&lldev->task);
tasklet_kill(&lldev->rst_task);
memset(lldev->trepool, 0, required_bytes);
lldev->trepool = NULL;
lldev->pending_tre_count = 0;

18
drivers/dma/s3c24xx-dma.c
View File

@ -1136,8 +1136,10 @@ static void s3c24xx_dma_free_virtual_channels(struct dma_device *dmadev)
struct s3c24xx_dma_chan *next;
list_for_each_entry_safe(chan,
next, &dmadev->channels, vc.chan.device_node)
next, &dmadev->channels, vc.chan.device_node) {
list_del(&chan->vc.chan.device_node);
tasklet_kill(&chan->vc.task);
}
}
/* s3c2410, s3c2440 and s3c2442 have a 0x40 stride without separate clocks */
@ -1359,6 +1361,18 @@ err_memcpy:
return ret;
}
static void s3c24xx_dma_free_irq(struct platform_device *pdev,
struct s3c24xx_dma_engine *s3cdma)
{
int i;
for (i = 0; i < s3cdma->pdata->num_phy_channels; i++) {
struct s3c24xx_dma_phy *phy = &s3cdma->phy_chans[i];
devm_free_irq(&pdev->dev, phy->irq, phy);
}
}
static int s3c24xx_dma_remove(struct platform_device *pdev)
{
const struct s3c24xx_dma_platdata *pdata = dev_get_platdata(&pdev->dev);
@ -1369,6 +1383,8 @@ static int s3c24xx_dma_remove(struct platform_device *pdev)
dma_async_device_unregister(&s3cdma->slave);
dma_async_device_unregister(&s3cdma->memcpy);
s3c24xx_dma_free_irq(pdev, s3cdma);
s3c24xx_dma_free_virtual_channels(&s3cdma->slave);
s3c24xx_dma_free_virtual_channels(&s3cdma->memcpy);

1
drivers/dma/sirf-dma.c
View File

@ -980,6 +980,7 @@ static int sirfsoc_dma_remove(struct platform_device *op)
of_dma_controller_free(op->dev.of_node);
dma_async_device_unregister(&sdma->dma);
free_irq(sdma->irq, sdma);
tasklet_kill(&sdma->tasklet);
irq_dispose_mapping(sdma->irq);
pm_runtime_disable(&op->dev);
if (!pm_runtime_status_suspended(&op->dev))

9
drivers/dma/txx9dmac.c
View File

@ -1165,9 +1165,12 @@ static int txx9dmac_chan_remove(struct platform_device *pdev)
{
struct txx9dmac_chan *dc = platform_get_drvdata(pdev);
dma_async_device_unregister(&dc->dma);
if (dc->irq >= 0)
if (dc->irq >= 0) {
devm_free_irq(&pdev->dev, dc->irq, dc);
tasklet_kill(&dc->tasklet);
}
dc->ddev->chan[pdev->id % TXX9_DMA_MAX_NR_CHANNELS] = NULL;
return 0;
}
@ -1228,8 +1231,10 @@ static int txx9dmac_remove(struct platform_device *pdev)
struct txx9dmac_dev *ddev = platform_get_drvdata(pdev);
txx9dmac_off(ddev);
if (ddev->irq >= 0)
if (ddev->irq >= 0) {
devm_free_irq(&pdev->dev, ddev->irq, ddev);
tasklet_kill(&ddev->tasklet);
}
return 0;
}