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-rw-r--r--drivers/dma/at_xdmac.c12
-rw-r--r--drivers/dma/dw-edma/dw-edma-v0-core.c7
-rw-r--r--drivers/dma/hisi_dma.c2
-rw-r--r--drivers/dma/idxd/device.c40
-rw-r--r--drivers/dma/idxd/idxd.h12
-rw-r--r--drivers/dma/idxd/init.c6
-rw-r--r--drivers/dma/idxd/registers.h14
-rw-r--r--drivers/dma/idxd/sysfs.c48
-rw-r--r--drivers/dma/imx-sdma.c32
-rw-r--r--drivers/dma/mediatek/mtk-uart-apdma.c9
-rw-r--r--drivers/dma/ptdma/ptdma-dev.c17
-rw-r--r--drivers/dma/sh/rcar-dmac.c9
-rw-r--r--drivers/dma/stm32-dmamux.c4
13 files changed, 120 insertions, 92 deletions
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 8177aed16006..177a537971a1 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1450,7 +1450,7 @@ at_xdmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
{
struct at_xdmac_chan *atchan = to_at_xdmac_chan(chan);
struct at_xdmac *atxdmac = to_at_xdmac(atchan->chan.device);
- struct at_xdmac_desc *desc, *_desc;
+ struct at_xdmac_desc *desc, *_desc, *iter;
struct list_head *descs_list;
enum dma_status ret;
int residue, retry;
@@ -1565,11 +1565,13 @@ at_xdmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
* microblock.
*/
descs_list = &desc->descs_list;
- list_for_each_entry_safe(desc, _desc, descs_list, desc_node) {
- dwidth = at_xdmac_get_dwidth(desc->lld.mbr_cfg);
- residue -= (desc->lld.mbr_ubc & 0xffffff) << dwidth;
- if ((desc->lld.mbr_nda & 0xfffffffc) == cur_nda)
+ list_for_each_entry_safe(iter, _desc, descs_list, desc_node) {
+ dwidth = at_xdmac_get_dwidth(iter->lld.mbr_cfg);
+ residue -= (iter->lld.mbr_ubc & 0xffffff) << dwidth;
+ if ((iter->lld.mbr_nda & 0xfffffffc) == cur_nda) {
+ desc = iter;
break;
+ }
}
residue += cur_ubc << dwidth;
diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.c b/drivers/dma/dw-edma/dw-edma-v0-core.c
index 329fc2e57b70..b5b8f8181e77 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-core.c
+++ b/drivers/dma/dw-edma/dw-edma-v0-core.c
@@ -415,8 +415,11 @@ void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
(DW_EDMA_V0_CCS | DW_EDMA_V0_LLE));
/* Linked list */
#ifdef CONFIG_64BIT
- SET_CH_64(dw, chan->dir, chan->id, llp.reg,
- chunk->ll_region.paddr);
+ /* llp is not aligned on 64bit -> keep 32bit accesses */
+ SET_CH_32(dw, chan->dir, chan->id, llp.lsb,
+ lower_32_bits(chunk->ll_region.paddr));
+ SET_CH_32(dw, chan->dir, chan->id, llp.msb,
+ upper_32_bits(chunk->ll_region.paddr));
#else /* CONFIG_64BIT */
SET_CH_32(dw, chan->dir, chan->id, llp.lsb,
lower_32_bits(chunk->ll_region.paddr));
diff --git a/drivers/dma/hisi_dma.c b/drivers/dma/hisi_dma.c
index c855a0e4f9ff..f680e9b40bf7 100644
--- a/drivers/dma/hisi_dma.c
+++ b/drivers/dma/hisi_dma.c
@@ -30,7 +30,7 @@
#define HISI_DMA_MODE 0x217c
#define HISI_DMA_OFFSET 0x100
-#define HISI_DMA_MSI_NUM 30
+#define HISI_DMA_MSI_NUM 32
#define HISI_DMA_CHAN_NUM 30
#define HISI_DMA_Q_DEPTH_VAL 1024
diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index b468ca36d3a0..e622245c9380 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -406,7 +406,6 @@ static void idxd_wq_device_reset_cleanup(struct idxd_wq *wq)
{
lockdep_assert_held(&wq->wq_lock);
- idxd_wq_disable_cleanup(wq);
wq->size = 0;
wq->group = NULL;
}
@@ -700,11 +699,16 @@ static void idxd_groups_clear_state(struct idxd_device *idxd)
memset(&group->grpcfg, 0, sizeof(group->grpcfg));
group->num_engines = 0;
group->num_wqs = 0;
- group->use_token_limit = false;
- group->tokens_allowed = 0;
- group->tokens_reserved = 0;
- group->tc_a = -1;
- group->tc_b = -1;
+ group->use_rdbuf_limit = false;
+ group->rdbufs_allowed = 0;
+ group->rdbufs_reserved = 0;
+ if (idxd->hw.version < DEVICE_VERSION_2 && !tc_override) {
+ group->tc_a = 1;
+ group->tc_b = 1;
+ } else {
+ group->tc_a = -1;
+ group->tc_b = -1;
+ }
}
}
@@ -718,14 +722,17 @@ static void idxd_device_wqs_clear_state(struct idxd_device *idxd)
if (wq->state == IDXD_WQ_ENABLED) {
idxd_wq_disable_cleanup(wq);
- idxd_wq_device_reset_cleanup(wq);
wq->state = IDXD_WQ_DISABLED;
}
+ idxd_wq_device_reset_cleanup(wq);
}
}
void idxd_device_clear_state(struct idxd_device *idxd)
{
+ if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags))
+ return;
+
idxd_groups_clear_state(idxd);
idxd_engines_clear_state(idxd);
idxd_device_wqs_clear_state(idxd);
@@ -800,10 +807,10 @@ static int idxd_groups_config_write(struct idxd_device *idxd)
int i;
struct device *dev = &idxd->pdev->dev;
- /* Setup bandwidth token limit */
- if (idxd->token_limit) {
+ /* Setup bandwidth rdbuf limit */
+ if (idxd->hw.gen_cap.config_en && idxd->rdbuf_limit) {
reg.bits = ioread32(idxd->reg_base + IDXD_GENCFG_OFFSET);
- reg.token_limit = idxd->token_limit;
+ reg.rdbuf_limit = idxd->rdbuf_limit;
iowrite32(reg.bits, idxd->reg_base + IDXD_GENCFG_OFFSET);
}
@@ -944,13 +951,12 @@ static void idxd_group_flags_setup(struct idxd_device *idxd)
group->tc_b = group->grpcfg.flags.tc_b = 1;
else
group->grpcfg.flags.tc_b = group->tc_b;
- group->grpcfg.flags.use_token_limit = group->use_token_limit;
- group->grpcfg.flags.tokens_reserved = group->tokens_reserved;
- if (group->tokens_allowed)
- group->grpcfg.flags.tokens_allowed =
- group->tokens_allowed;
+ group->grpcfg.flags.use_rdbuf_limit = group->use_rdbuf_limit;
+ group->grpcfg.flags.rdbufs_reserved = group->rdbufs_reserved;
+ if (group->rdbufs_allowed)
+ group->grpcfg.flags.rdbufs_allowed = group->rdbufs_allowed;
else
- group->grpcfg.flags.tokens_allowed = idxd->max_tokens;
+ group->grpcfg.flags.rdbufs_allowed = idxd->max_rdbufs;
}
}
@@ -1145,7 +1151,7 @@ int idxd_device_load_config(struct idxd_device *idxd)
int i, rc;
reg.bits = ioread32(idxd->reg_base + IDXD_GENCFG_OFFSET);
- idxd->token_limit = reg.token_limit;
+ idxd->rdbuf_limit = reg.rdbuf_limit;
for (i = 0; i < idxd->max_groups; i++) {
struct idxd_group *group = idxd->groups[i];
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
index bfcb03329f77..833af18a99ee 100644
--- a/drivers/dma/idxd/idxd.h
+++ b/drivers/dma/idxd/idxd.h
@@ -84,9 +84,9 @@ struct idxd_group {
int id;
int num_engines;
int num_wqs;
- bool use_token_limit;
- u8 tokens_allowed;
- u8 tokens_reserved;
+ bool use_rdbuf_limit;
+ u8 rdbufs_allowed;
+ u8 rdbufs_reserved;
int tc_a;
int tc_b;
};
@@ -278,11 +278,11 @@ struct idxd_device {
u32 max_batch_size;
int max_groups;
int max_engines;
- int max_tokens;
+ int max_rdbufs;
int max_wqs;
int max_wq_size;
- int token_limit;
- int nr_tokens; /* non-reserved tokens */
+ int rdbuf_limit;
+ int nr_rdbufs; /* non-reserved read buffers */
unsigned int wqcfg_size;
union sw_err_reg sw_err;
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 7bf03f371ce1..6263d9825250 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -464,9 +464,9 @@ static void idxd_read_caps(struct idxd_device *idxd)
dev_dbg(dev, "group_cap: %#llx\n", idxd->hw.group_cap.bits);
idxd->max_groups = idxd->hw.group_cap.num_groups;
dev_dbg(dev, "max groups: %u\n", idxd->max_groups);
- idxd->max_tokens = idxd->hw.group_cap.total_tokens;
- dev_dbg(dev, "max tokens: %u\n", idxd->max_tokens);
- idxd->nr_tokens = idxd->max_tokens;
+ idxd->max_rdbufs = idxd->hw.group_cap.total_rdbufs;
+ dev_dbg(dev, "max read buffers: %u\n", idxd->max_rdbufs);
+ idxd->nr_rdbufs = idxd->max_rdbufs;
/* read engine capabilities */
idxd->hw.engine_cap.bits =
diff --git a/drivers/dma/idxd/registers.h b/drivers/dma/idxd/registers.h
index 97ffb06de9b0..c0961c1ac161 100644
--- a/drivers/dma/idxd/registers.h
+++ b/drivers/dma/idxd/registers.h
@@ -65,9 +65,9 @@ union wq_cap_reg {
union group_cap_reg {
struct {
u64 num_groups:8;
- u64 total_tokens:8;
- u64 token_en:1;
- u64 token_limit:1;
+ u64 total_rdbufs:8; /* formerly total_tokens */
+ u64 rdbuf_ctrl:1; /* formerly token_en */
+ u64 rdbuf_limit:1; /* formerly token_limit */
u64 rsvd:46;
};
u64 bits;
@@ -111,7 +111,7 @@ union offsets_reg {
#define IDXD_GENCFG_OFFSET 0x80
union gencfg_reg {
struct {
- u32 token_limit:8;
+ u32 rdbuf_limit:8;
u32 rsvd:4;
u32 user_int_en:1;
u32 rsvd2:19;
@@ -288,10 +288,10 @@ union group_flags {
u32 tc_a:3;
u32 tc_b:3;
u32 rsvd:1;
- u32 use_token_limit:1;
- u32 tokens_reserved:8;
+ u32 use_rdbuf_limit:1;
+ u32 rdbufs_reserved:8;
u32 rsvd2:4;
- u32 tokens_allowed:8;
+ u32 rdbufs_allowed:8;
u32 rsvd3:4;
};
u32 bits;
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index a9025be940db..33d94c67fedb 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -99,17 +99,17 @@ struct device_type idxd_engine_device_type = {
/* Group attributes */
-static void idxd_set_free_tokens(struct idxd_device *idxd)
+static void idxd_set_free_rdbufs(struct idxd_device *idxd)
{
- int i, tokens;
+ int i, rdbufs;
- for (i = 0, tokens = 0; i < idxd->max_groups; i++) {
+ for (i = 0, rdbufs = 0; i < idxd->max_groups; i++) {
struct idxd_group *g = idxd->groups[i];
- tokens += g->tokens_reserved;
+ rdbufs += g->rdbufs_reserved;
}
- idxd->nr_tokens = idxd->max_tokens - tokens;
+ idxd->nr_rdbufs = idxd->max_rdbufs - rdbufs;
}
static ssize_t group_tokens_reserved_show(struct device *dev,
@@ -118,7 +118,7 @@ static ssize_t group_tokens_reserved_show(struct device *dev,
{
struct idxd_group *group = confdev_to_group(dev);
- return sysfs_emit(buf, "%u\n", group->tokens_reserved);
+ return sysfs_emit(buf, "%u\n", group->rdbufs_reserved);
}
static ssize_t group_tokens_reserved_store(struct device *dev,
@@ -143,14 +143,14 @@ static ssize_t group_tokens_reserved_store(struct device *dev,
if (idxd->state == IDXD_DEV_ENABLED)
return -EPERM;
- if (val > idxd->max_tokens)
+ if (val > idxd->max_rdbufs)
return -EINVAL;
- if (val > idxd->nr_tokens + group->tokens_reserved)
+ if (val > idxd->nr_rdbufs + group->rdbufs_reserved)
return -EINVAL;
- group->tokens_reserved = val;
- idxd_set_free_tokens(idxd);
+ group->rdbufs_reserved = val;
+ idxd_set_free_rdbufs(idxd);
return count;
}
@@ -164,7 +164,7 @@ static ssize_t group_tokens_allowed_show(struct device *dev,
{
struct idxd_group *group = confdev_to_group(dev);
- return sysfs_emit(buf, "%u\n", group->tokens_allowed);
+ return sysfs_emit(buf, "%u\n", group->rdbufs_allowed);
}
static ssize_t group_tokens_allowed_store(struct device *dev,
@@ -190,10 +190,10 @@ static ssize_t group_tokens_allowed_store(struct device *dev,
return -EPERM;
if (val < 4 * group->num_engines ||
- val > group->tokens_reserved + idxd->nr_tokens)
+ val > group->rdbufs_reserved + idxd->nr_rdbufs)
return -EINVAL;
- group->tokens_allowed = val;
+ group->rdbufs_allowed = val;
return count;
}
@@ -207,7 +207,7 @@ static ssize_t group_use_token_limit_show(struct device *dev,
{
struct idxd_group *group = confdev_to_group(dev);
- return sysfs_emit(buf, "%u\n", group->use_token_limit);
+ return sysfs_emit(buf, "%u\n", group->use_rdbuf_limit);
}
static ssize_t group_use_token_limit_store(struct device *dev,
@@ -232,10 +232,10 @@ static ssize_t group_use_token_limit_store(struct device *dev,
if (idxd->state == IDXD_DEV_ENABLED)
return -EPERM;
- if (idxd->token_limit == 0)
+ if (idxd->rdbuf_limit == 0)
return -EPERM;
- group->use_token_limit = !!val;
+ group->use_rdbuf_limit = !!val;
return count;
}
@@ -842,6 +842,9 @@ static ssize_t wq_max_transfer_size_store(struct device *dev, struct device_attr
u64 xfer_size;
int rc;
+ if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags))
+ return -EPERM;
+
if (wq->state != IDXD_WQ_DISABLED)
return -EPERM;
@@ -876,6 +879,9 @@ static ssize_t wq_max_batch_size_store(struct device *dev, struct device_attribu
u64 batch_size;
int rc;
+ if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags))
+ return -EPERM;
+
if (wq->state != IDXD_WQ_DISABLED)
return -EPERM;
@@ -1161,7 +1167,7 @@ static ssize_t max_tokens_show(struct device *dev,
{
struct idxd_device *idxd = confdev_to_idxd(dev);
- return sysfs_emit(buf, "%u\n", idxd->max_tokens);
+ return sysfs_emit(buf, "%u\n", idxd->max_rdbufs);
}
static DEVICE_ATTR_RO(max_tokens);
@@ -1170,7 +1176,7 @@ static ssize_t token_limit_show(struct device *dev,
{
struct idxd_device *idxd = confdev_to_idxd(dev);
- return sysfs_emit(buf, "%u\n", idxd->token_limit);
+ return sysfs_emit(buf, "%u\n", idxd->rdbuf_limit);
}
static ssize_t token_limit_store(struct device *dev,
@@ -1191,13 +1197,13 @@ static ssize_t token_limit_store(struct device *dev,
if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags))
return -EPERM;
- if (!idxd->hw.group_cap.token_limit)
+ if (!idxd->hw.group_cap.rdbuf_limit)
return -EPERM;
- if (val > idxd->hw.group_cap.total_tokens)
+ if (val > idxd->hw.group_cap.total_rdbufs)
return -EINVAL;
- idxd->token_limit = val;
+ idxd->rdbuf_limit = val;
return count;
}
static DEVICE_ATTR_RW(token_limit);
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index cacc725ca545..2300d965a3f4 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -198,12 +198,12 @@ struct sdma_script_start_addrs {
s32 per_2_firi_addr;
s32 mcu_2_firi_addr;
s32 uart_2_per_addr;
- s32 uart_2_mcu_ram_addr;
+ s32 uart_2_mcu_addr;
s32 per_2_app_addr;
s32 mcu_2_app_addr;
s32 per_2_per_addr;
s32 uartsh_2_per_addr;
- s32 uartsh_2_mcu_ram_addr;
+ s32 uartsh_2_mcu_addr;
s32 per_2_shp_addr;
s32 mcu_2_shp_addr;
s32 ata_2_mcu_addr;
@@ -232,8 +232,8 @@ struct sdma_script_start_addrs {
s32 mcu_2_ecspi_addr;
s32 mcu_2_sai_addr;
s32 sai_2_mcu_addr;
- s32 uart_2_mcu_addr;
- s32 uartsh_2_mcu_addr;
+ s32 uart_2_mcu_rom_addr;
+ s32 uartsh_2_mcu_rom_addr;
/* End of v3 array */
s32 mcu_2_zqspi_addr;
/* End of v4 array */
@@ -1780,17 +1780,17 @@ static void sdma_add_scripts(struct sdma_engine *sdma,
saddr_arr[i] = addr_arr[i];
/*
- * get uart_2_mcu_addr/uartsh_2_mcu_addr rom script specially because
- * they are now replaced by uart_2_mcu_ram_addr/uartsh_2_mcu_ram_addr
- * to be compatible with legacy freescale/nxp sdma firmware, and they
- * are located in the bottom part of sdma_script_start_addrs which are
- * beyond the SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1.
+ * For compatibility with NXP internal legacy kernel before 4.19 which
+ * is based on uart ram script and mainline kernel based on uart rom
+ * script, both uart ram/rom scripts are present in newer sdma
+ * firmware. Use the rom versions if they are present (V3 or newer).
*/
- if (addr->uart_2_mcu_addr)
- sdma->script_addrs->uart_2_mcu_addr = addr->uart_2_mcu_addr;
- if (addr->uartsh_2_mcu_addr)
- sdma->script_addrs->uartsh_2_mcu_addr = addr->uartsh_2_mcu_addr;
-
+ if (sdma->script_number >= SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3) {
+ if (addr->uart_2_mcu_rom_addr)
+ sdma->script_addrs->uart_2_mcu_addr = addr->uart_2_mcu_rom_addr;
+ if (addr->uartsh_2_mcu_rom_addr)
+ sdma->script_addrs->uartsh_2_mcu_addr = addr->uartsh_2_mcu_rom_addr;
+ }
}
static void sdma_load_firmware(const struct firmware *fw, void *context)
@@ -1869,7 +1869,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
u32 reg, val, shift, num_map, i;
int ret = 0;
- if (IS_ERR(np) || IS_ERR(gpr_np))
+ if (IS_ERR(np) || !gpr_np)
goto out;
event_remap = of_find_property(np, propname, NULL);
@@ -1917,7 +1917,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
}
out:
- if (!IS_ERR(gpr_np))
+ if (gpr_np)
of_node_put(gpr_np);
return ret;
diff --git a/drivers/dma/mediatek/mtk-uart-apdma.c b/drivers/dma/mediatek/mtk-uart-apdma.c
index 375e7e647df6..a1517ef1f4a0 100644
--- a/drivers/dma/mediatek/mtk-uart-apdma.c
+++ b/drivers/dma/mediatek/mtk-uart-apdma.c
@@ -274,7 +274,7 @@ static int mtk_uart_apdma_alloc_chan_resources(struct dma_chan *chan)
unsigned int status;
int ret;
- ret = pm_runtime_get_sync(mtkd->ddev.dev);
+ ret = pm_runtime_resume_and_get(mtkd->ddev.dev);
if (ret < 0) {
pm_runtime_put_noidle(chan->device->dev);
return ret;
@@ -288,18 +288,21 @@ static int mtk_uart_apdma_alloc_chan_resources(struct dma_chan *chan)
ret = readx_poll_timeout(readl, c->base + VFF_EN,
status, !status, 10, 100);
if (ret)
- return ret;
+ goto err_pm;
ret = request_irq(c->irq, mtk_uart_apdma_irq_handler,
IRQF_TRIGGER_NONE, KBUILD_MODNAME, chan);
if (ret < 0) {
dev_err(chan->device->dev, "Can't request dma IRQ\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_pm;
}
if (mtkd->support_33bits)
mtk_uart_apdma_write(c, VFF_4G_SUPPORT, VFF_4G_SUPPORT_CLR_B);
+err_pm:
+ pm_runtime_put_noidle(mtkd->ddev.dev);
return ret;
}
diff --git a/drivers/dma/ptdma/ptdma-dev.c b/drivers/dma/ptdma/ptdma-dev.c
index 8a6bf291a73f..daafea5bc35d 100644
--- a/drivers/dma/ptdma/ptdma-dev.c
+++ b/drivers/dma/ptdma/ptdma-dev.c
@@ -207,7 +207,7 @@ int pt_core_init(struct pt_device *pt)
if (!cmd_q->qbase) {
dev_err(dev, "unable to allocate command queue\n");
ret = -ENOMEM;
- goto e_dma_alloc;
+ goto e_destroy_pool;
}
cmd_q->qidx = 0;
@@ -229,8 +229,10 @@ int pt_core_init(struct pt_device *pt)
/* Request an irq */
ret = request_irq(pt->pt_irq, pt_core_irq_handler, 0, dev_name(pt->dev), pt);
- if (ret)
- goto e_pool;
+ if (ret) {
+ dev_err(dev, "unable to allocate an IRQ\n");
+ goto e_free_dma;
+ }
/* Update the device registers with queue information. */
cmd_q->qcontrol &= ~CMD_Q_SIZE;
@@ -250,21 +252,20 @@ int pt_core_init(struct pt_device *pt)
/* Register the DMA engine support */
ret = pt_dmaengine_register(pt);
if (ret)
- goto e_dmaengine;
+ goto e_free_irq;
/* Set up debugfs entries */
ptdma_debugfs_setup(pt);
return 0;
-e_dmaengine:
+e_free_irq:
free_irq(pt->pt_irq, pt);
-e_dma_alloc:
+e_free_dma:
dma_free_coherent(dev, cmd_q->qsize, cmd_q->qbase, cmd_q->qbase_dma);
-e_pool:
- dev_err(dev, "unable to allocate an IRQ\n");
+e_destroy_pool:
dma_pool_destroy(pt->cmd_q.dma_pool);
return ret;
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 6885b3dcd7a9..f4c46b3b6d9d 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1868,8 +1868,13 @@ static int rcar_dmac_probe(struct platform_device *pdev)
dmac->dev = &pdev->dev;
platform_set_drvdata(pdev, dmac);
- dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
- dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
+ ret = dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
+ if (ret)
+ return ret;
+
+ ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
+ if (ret)
+ return ret;
ret = rcar_dmac_parse_of(&pdev->dev, dmac);
if (ret < 0)
diff --git a/drivers/dma/stm32-dmamux.c b/drivers/dma/stm32-dmamux.c
index a42164389ebc..d5d55732adba 100644
--- a/drivers/dma/stm32-dmamux.c
+++ b/drivers/dma/stm32-dmamux.c
@@ -292,10 +292,12 @@ static int stm32_dmamux_probe(struct platform_device *pdev)
ret = of_dma_router_register(node, stm32_dmamux_route_allocate,
&stm32_dmamux->dmarouter);
if (ret)
- goto err_clk;
+ goto pm_disable;
return 0;
+pm_disable:
+ pm_runtime_disable(&pdev->dev);
err_clk:
clk_disable_unprepare(stm32_dmamux->clk);
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-02 18:55:59 +0300