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-rw-r--r--drivers/soc/fsl/Kconfig1
-rw-r--r--drivers/soc/fsl/dpio/dpio-cmd.h6
-rw-r--r--drivers/soc/fsl/dpio/dpio-driver.c93
-rw-r--r--drivers/soc/fsl/dpio/dpio-service.c46
-rw-r--r--drivers/soc/fsl/dpio/dpio.c39
-rw-r--r--drivers/soc/fsl/dpio/dpio.h9
-rw-r--r--drivers/soc/fsl/dpio/qbman-portal.c5
-rw-r--r--drivers/soc/fsl/guts.c10
-rw-r--r--drivers/soc/fsl/qbman/dpaa_sys.c2
-rw-r--r--drivers/soc/fsl/qbman/qman.c9
-rw-r--r--drivers/soc/fsl/qe/qe_tdm.c55
11 files changed, 186 insertions, 89 deletions
diff --git a/drivers/soc/fsl/Kconfig b/drivers/soc/fsl/Kconfig
index 8f80e8bbf29e..61f8e1433d0a 100644
--- a/drivers/soc/fsl/Kconfig
+++ b/drivers/soc/fsl/Kconfig
@@ -22,6 +22,7 @@ config FSL_GUTS
config FSL_MC_DPIO
tristate "QorIQ DPAA2 DPIO driver"
depends on FSL_MC_BUS
+ select SOC_BUS
help
Driver for the DPAA2 DPIO object. A DPIO provides queue and
buffer management facilities for software to interact with
diff --git a/drivers/soc/fsl/dpio/dpio-cmd.h b/drivers/soc/fsl/dpio/dpio-cmd.h
index ab8f82ee7ee5..e13fd3ac1939 100644
--- a/drivers/soc/fsl/dpio/dpio-cmd.h
+++ b/drivers/soc/fsl/dpio/dpio-cmd.h
@@ -25,6 +25,8 @@
#define DPIO_CMDID_ENABLE DPIO_CMD(0x002)
#define DPIO_CMDID_DISABLE DPIO_CMD(0x003)
#define DPIO_CMDID_GET_ATTR DPIO_CMD(0x004)
+#define DPIO_CMDID_RESET DPIO_CMD(0x005)
+#define DPIO_CMDID_SET_STASHING_DEST DPIO_CMD(0x120)
struct dpio_cmd_open {
__le32 dpio_id;
@@ -46,4 +48,8 @@ struct dpio_rsp_get_attr {
__le32 qbman_version;
};
+struct dpio_stashing_dest {
+ u8 sdest;
+};
+
#endif /* _FSL_DPIO_CMD_H */
diff --git a/drivers/soc/fsl/dpio/dpio-driver.c b/drivers/soc/fsl/dpio/dpio-driver.c
index e58fcc9096e8..c0cdc8946031 100644
--- a/drivers/soc/fsl/dpio/dpio-driver.c
+++ b/drivers/soc/fsl/dpio/dpio-driver.c
@@ -14,6 +14,7 @@
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/io.h>
+#include <linux/sys_soc.h>
#include <linux/fsl/mc.h>
#include <soc/fsl/dpaa2-io.h>
@@ -30,6 +31,48 @@ struct dpio_priv {
struct dpaa2_io *io;
};
+static cpumask_var_t cpus_unused_mask;
+
+static const struct soc_device_attribute ls1088a_soc[] = {
+ {.family = "QorIQ LS1088A"},
+ { /* sentinel */ }
+};
+
+static const struct soc_device_attribute ls2080a_soc[] = {
+ {.family = "QorIQ LS2080A"},
+ { /* sentinel */ }
+};
+
+static const struct soc_device_attribute ls2088a_soc[] = {
+ {.family = "QorIQ LS2088A"},
+ { /* sentinel */ }
+};
+
+static const struct soc_device_attribute lx2160a_soc[] = {
+ {.family = "QorIQ LX2160A"},
+ { /* sentinel */ }
+};
+
+static int dpaa2_dpio_get_cluster_sdest(struct fsl_mc_device *dpio_dev, int cpu)
+{
+ int cluster_base, cluster_size;
+
+ if (soc_device_match(ls1088a_soc)) {
+ cluster_base = 2;
+ cluster_size = 4;
+ } else if (soc_device_match(ls2080a_soc) ||
+ soc_device_match(ls2088a_soc) ||
+ soc_device_match(lx2160a_soc)) {
+ cluster_base = 0;
+ cluster_size = 2;
+ } else {
+ dev_err(&dpio_dev->dev, "unknown SoC version\n");
+ return -1;
+ }
+
+ return cluster_base + cpu / cluster_size;
+}
+
static irqreturn_t dpio_irq_handler(int irq_num, void *arg)
{
struct device *dev = (struct device *)arg;
@@ -86,7 +129,8 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
struct dpio_priv *priv;
int err = -ENOMEM;
struct device *dev = &dpio_dev->dev;
- static int next_cpu = -1;
+ int possible_next_cpu;
+ int sdest;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -108,6 +152,12 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
goto err_open;
}
+ err = dpio_reset(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpio_reset() failed\n");
+ goto err_reset;
+ }
+
err = dpio_get_attributes(dpio_dev->mc_io, 0, dpio_dev->mc_handle,
&dpio_attrs);
if (err) {
@@ -128,17 +178,24 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
desc.dpio_id = dpio_dev->obj_desc.id;
/* get the cpu to use for the affinity hint */
- if (next_cpu == -1)
- next_cpu = cpumask_first(cpu_online_mask);
- else
- next_cpu = cpumask_next(next_cpu, cpu_online_mask);
-
- if (!cpu_possible(next_cpu)) {
+ possible_next_cpu = cpumask_first(cpus_unused_mask);
+ if (possible_next_cpu >= nr_cpu_ids) {
dev_err(dev, "probe failed. Number of DPIOs exceeds NR_CPUS.\n");
err = -ERANGE;
goto err_allocate_irqs;
}
- desc.cpu = next_cpu;
+ desc.cpu = possible_next_cpu;
+ cpumask_clear_cpu(possible_next_cpu, cpus_unused_mask);
+
+ sdest = dpaa2_dpio_get_cluster_sdest(dpio_dev, desc.cpu);
+ if (sdest >= 0) {
+ err = dpio_set_stashing_destination(dpio_dev->mc_io, 0,
+ dpio_dev->mc_handle,
+ sdest);
+ if (err)
+ dev_err(dev, "dpio_set_stashing_destination failed for cpu%d\n",
+ desc.cpu);
+ }
/*
* Set the CENA regs to be the cache inhibited area of the portal to
@@ -171,7 +228,7 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
if (err)
goto err_register_dpio_irq;
- priv->io = dpaa2_io_create(&desc);
+ priv->io = dpaa2_io_create(&desc, dev);
if (!priv->io) {
dev_err(dev, "dpaa2_io_create failed\n");
err = -ENOMEM;
@@ -182,7 +239,6 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
dev_dbg(dev, " receives_notifications = %d\n",
desc.receives_notifications);
dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
- fsl_mc_portal_free(dpio_dev->mc_io);
return 0;
@@ -193,6 +249,7 @@ err_register_dpio_irq:
err_allocate_irqs:
dpio_disable(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
err_get_attr:
+err_reset:
dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
err_open:
fsl_mc_portal_free(dpio_dev->mc_io);
@@ -211,20 +268,17 @@ static int dpaa2_dpio_remove(struct fsl_mc_device *dpio_dev)
{
struct device *dev;
struct dpio_priv *priv;
- int err;
+ int err = 0, cpu;
dev = &dpio_dev->dev;
priv = dev_get_drvdata(dev);
+ cpu = dpaa2_io_get_cpu(priv->io);
dpaa2_io_down(priv->io);
dpio_teardown_irqs(dpio_dev);
- err = fsl_mc_portal_allocate(dpio_dev, 0, &dpio_dev->mc_io);
- if (err) {
- dev_err(dev, "MC portal allocation failed\n");
- goto err_mcportal;
- }
+ cpumask_set_cpu(cpu, cpus_unused_mask);
err = dpio_open(dpio_dev->mc_io, 0, dpio_dev->obj_desc.id,
&dpio_dev->mc_handle);
@@ -243,7 +297,7 @@ static int dpaa2_dpio_remove(struct fsl_mc_device *dpio_dev)
err_open:
fsl_mc_portal_free(dpio_dev->mc_io);
-err_mcportal:
+
return err;
}
@@ -267,11 +321,16 @@ static struct fsl_mc_driver dpaa2_dpio_driver = {
static int dpio_driver_init(void)
{
+ if (!zalloc_cpumask_var(&cpus_unused_mask, GFP_KERNEL))
+ return -ENOMEM;
+ cpumask_copy(cpus_unused_mask, cpu_online_mask);
+
return fsl_mc_driver_register(&dpaa2_dpio_driver);
}
static void dpio_driver_exit(void)
{
+ free_cpumask_var(cpus_unused_mask);
fsl_mc_driver_unregister(&dpaa2_dpio_driver);
}
module_init(dpio_driver_init);
diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpio-service.c
index ec0837ff039a..b9539ef2c3cd 100644
--- a/drivers/soc/fsl/dpio/dpio-service.c
+++ b/drivers/soc/fsl/dpio/dpio-service.c
@@ -27,6 +27,7 @@ struct dpaa2_io {
/* protect notifications list */
spinlock_t lock_notifications;
struct list_head notifications;
+ struct device *dev;
};
struct dpaa2_io_store {
@@ -98,13 +99,15 @@ EXPORT_SYMBOL_GPL(dpaa2_io_service_select);
/**
* dpaa2_io_create() - create a dpaa2_io object.
* @desc: the dpaa2_io descriptor
+ * @dev: the actual DPIO device
*
* Activates a "struct dpaa2_io" corresponding to the given config of an actual
* DPIO object.
*
* Return a valid dpaa2_io object for success, or NULL for failure.
*/
-struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
+struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc,
+ struct device *dev)
{
struct dpaa2_io *obj = kmalloc(sizeof(*obj), GFP_KERNEL);
@@ -146,6 +149,8 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
dpio_by_cpu[desc->cpu] = obj;
spin_unlock(&dpio_list_lock);
+ obj->dev = dev;
+
return obj;
}
@@ -160,6 +165,11 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
*/
void dpaa2_io_down(struct dpaa2_io *d)
{
+ spin_lock(&dpio_list_lock);
+ dpio_by_cpu[d->dpio_desc.cpu] = NULL;
+ list_del(&d->node);
+ spin_unlock(&dpio_list_lock);
+
kfree(d);
}
@@ -210,10 +220,24 @@ done:
}
/**
+ * dpaa2_io_get_cpu() - get the cpu associated with a given DPIO object
+ *
+ * @d: the given DPIO object.
+ *
+ * Return the cpu associated with the DPIO object
+ */
+int dpaa2_io_get_cpu(struct dpaa2_io *d)
+{
+ return d->dpio_desc.cpu;
+}
+EXPORT_SYMBOL(dpaa2_io_get_cpu);
+
+/**
* dpaa2_io_service_register() - Prepare for servicing of FQDAN or CDAN
* notifications on the given DPIO service.
* @d: the given DPIO service.
* @ctx: the notification context.
+ * @dev: the device that requests the register
*
* The caller should make the MC command to attach a DPAA2 object to
* a DPIO after this function completes successfully. In that way:
@@ -228,14 +252,20 @@ done:
* Return 0 for success, or -ENODEV for failure.
*/
int dpaa2_io_service_register(struct dpaa2_io *d,
- struct dpaa2_io_notification_ctx *ctx)
+ struct dpaa2_io_notification_ctx *ctx,
+ struct device *dev)
{
+ struct device_link *link;
unsigned long irqflags;
d = service_select_by_cpu(d, ctx->desired_cpu);
if (!d)
return -ENODEV;
+ link = device_link_add(dev, d->dev, DL_FLAG_AUTOREMOVE_CONSUMER);
+ if (!link)
+ return -EINVAL;
+
ctx->dpio_id = d->dpio_desc.dpio_id;
ctx->qman64 = (u64)(uintptr_t)ctx;
ctx->dpio_private = d;
@@ -256,12 +286,14 @@ EXPORT_SYMBOL_GPL(dpaa2_io_service_register);
* dpaa2_io_service_deregister - The opposite of 'register'.
* @service: the given DPIO service.
* @ctx: the notification context.
+ * @dev: the device that requests to be deregistered
*
* This function should be called only after sending the MC command to
* to detach the notification-producing device from the DPIO.
*/
void dpaa2_io_service_deregister(struct dpaa2_io *service,
- struct dpaa2_io_notification_ctx *ctx)
+ struct dpaa2_io_notification_ctx *ctx,
+ struct device *dev)
{
struct dpaa2_io *d = ctx->dpio_private;
unsigned long irqflags;
@@ -272,6 +304,9 @@ void dpaa2_io_service_deregister(struct dpaa2_io *service,
spin_lock_irqsave(&d->lock_notifications, irqflags);
list_del(&ctx->node);
spin_unlock_irqrestore(&d->lock_notifications, irqflags);
+
+ if (dev)
+ device_link_remove(dev, d->dev);
}
EXPORT_SYMBOL_GPL(dpaa2_io_service_deregister);
@@ -438,7 +473,7 @@ EXPORT_SYMBOL_GPL(dpaa2_io_service_enqueue_qd);
* Return 0 for success, and negative error code for failure.
*/
int dpaa2_io_service_release(struct dpaa2_io *d,
- u32 bpid,
+ u16 bpid,
const u64 *buffers,
unsigned int num_buffers)
{
@@ -467,7 +502,7 @@ EXPORT_SYMBOL_GPL(dpaa2_io_service_release);
* Eg. if the buffer pool is empty, this will return zero.
*/
int dpaa2_io_service_acquire(struct dpaa2_io *d,
- u32 bpid,
+ u16 bpid,
u64 *buffers,
unsigned int num_buffers)
{
@@ -595,6 +630,7 @@ struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last)
if (!(dpaa2_dq_flags(ret) & DPAA2_DQ_STAT_VALIDFRAME))
ret = NULL;
} else {
+ prefetch(&s->vaddr[s->idx]);
*is_last = 0;
}
diff --git a/drivers/soc/fsl/dpio/dpio.c b/drivers/soc/fsl/dpio/dpio.c
index ff37c80e11a0..af74c597a675 100644
--- a/drivers/soc/fsl/dpio/dpio.c
+++ b/drivers/soc/fsl/dpio/dpio.c
@@ -166,6 +166,22 @@ int dpio_get_attributes(struct fsl_mc_io *mc_io,
return 0;
}
+int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 sdest)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpio_stashing_dest *dpio_cmd;
+
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_SET_STASHING_DEST,
+ cmd_flags, token);
+ dpio_cmd = (struct dpio_stashing_dest *)cmd.params;
+ dpio_cmd->sdest = sdest;
+
+ return mc_send_command(mc_io, &cmd);
+}
+
/**
* dpio_get_api_version - Get Data Path I/O API version
* @mc_io: Pointer to MC portal's DPIO object
@@ -196,3 +212,26 @@ int dpio_get_api_version(struct fsl_mc_io *mc_io,
return 0;
}
+
+/**
+ * dpio_reset() - Reset the DPIO, returns the object to initial state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_RESET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
diff --git a/drivers/soc/fsl/dpio/dpio.h b/drivers/soc/fsl/dpio/dpio.h
index 49194c8e45f1..da06f7258098 100644
--- a/drivers/soc/fsl/dpio/dpio.h
+++ b/drivers/soc/fsl/dpio/dpio.h
@@ -75,9 +75,18 @@ int dpio_get_attributes(struct fsl_mc_io *mc_io,
u16 token,
struct dpio_attr *attr);
+int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 dest);
+
int dpio_get_api_version(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 *major_ver,
u16 *minor_ver);
+int dpio_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
#endif /* __FSL_DPIO_H */
diff --git a/drivers/soc/fsl/dpio/qbman-portal.c b/drivers/soc/fsl/dpio/qbman-portal.c
index 0bddb85c0ae5..d02013556a1b 100644
--- a/drivers/soc/fsl/dpio/qbman-portal.c
+++ b/drivers/soc/fsl/dpio/qbman-portal.c
@@ -169,9 +169,9 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
3, /* RPM: Valid bit mode, RCR in array mode */
2, /* DCM: Discrete consumption ack mode */
3, /* EPM: Valid bit mode, EQCR in array mode */
- 0, /* mem stashing drop enable == FALSE */
+ 1, /* mem stashing drop enable == TRUE */
1, /* mem stashing priority == TRUE */
- 0, /* mem stashing enable == FALSE */
+ 1, /* mem stashing enable == TRUE */
1, /* dequeue stashing priority == TRUE */
0, /* dequeue stashing enable == FALSE */
0); /* EQCR_CI stashing priority == FALSE */
@@ -180,6 +180,7 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
reg = qbman_read_register(p, QBMAN_CINH_SWP_CFG);
if (!reg) {
pr_err("qbman: the portal is not enabled!\n");
+ kfree(p);
return NULL;
}
diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
index 302e0c8d69d9..63f6df86f9e5 100644
--- a/drivers/soc/fsl/guts.c
+++ b/drivers/soc/fsl/guts.c
@@ -32,6 +32,7 @@ struct fsl_soc_die_attr {
static struct guts *guts;
static struct soc_device_attribute soc_dev_attr;
static struct soc_device *soc_dev;
+static struct device_node *root;
/* SoC die attribute definition for QorIQ platform */
@@ -114,7 +115,7 @@ static const struct fsl_soc_die_attr *fsl_soc_die_match(
return NULL;
}
-u32 fsl_guts_get_svr(void)
+static u32 fsl_guts_get_svr(void)
{
u32 svr = 0;
@@ -128,11 +129,10 @@ u32 fsl_guts_get_svr(void)
return svr;
}
-EXPORT_SYMBOL(fsl_guts_get_svr);
static int fsl_guts_probe(struct platform_device *pdev)
{
- struct device_node *root, *np = pdev->dev.of_node;
+ struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
struct resource *res;
const struct fsl_soc_die_attr *soc_die;
@@ -155,9 +155,8 @@ static int fsl_guts_probe(struct platform_device *pdev)
root = of_find_node_by_path("/");
if (of_property_read_string(root, "model", &machine))
of_property_read_string_index(root, "compatible", 0, &machine);
- of_node_put(root);
if (machine)
- soc_dev_attr.machine = devm_kstrdup(dev, machine, GFP_KERNEL);
+ soc_dev_attr.machine = machine;
svr = fsl_guts_get_svr();
soc_die = fsl_soc_die_match(svr, fsl_soc_die);
@@ -192,6 +191,7 @@ static int fsl_guts_probe(struct platform_device *pdev)
static int fsl_guts_remove(struct platform_device *dev)
{
soc_device_unregister(soc_dev);
+ of_node_put(root);
return 0;
}
diff --git a/drivers/soc/fsl/qbman/dpaa_sys.c b/drivers/soc/fsl/qbman/dpaa_sys.c
index 9436aa83ff1b..e6d48dccb8d5 100644
--- a/drivers/soc/fsl/qbman/dpaa_sys.c
+++ b/drivers/soc/fsl/qbman/dpaa_sys.c
@@ -62,7 +62,7 @@ int qbman_init_private_mem(struct device *dev, int idx, dma_addr_t *addr,
return -ENODEV;
}
- if (!dma_zalloc_coherent(dev, *size, addr, 0)) {
+ if (!dma_alloc_coherent(dev, *size, addr, 0)) {
dev_err(dev, "DMA Alloc memory failed\n");
return -ENODEV;
}
diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
index 52c153cd795a..636f83f781f5 100644
--- a/drivers/soc/fsl/qbman/qman.c
+++ b/drivers/soc/fsl/qbman/qman.c
@@ -1143,18 +1143,19 @@ static void qm_mr_process_task(struct work_struct *work);
static irqreturn_t portal_isr(int irq, void *ptr)
{
struct qman_portal *p = ptr;
-
- u32 clear = QM_DQAVAIL_MASK | p->irq_sources;
u32 is = qm_in(&p->p, QM_REG_ISR) & p->irq_sources;
+ u32 clear = 0;
if (unlikely(!is))
return IRQ_NONE;
/* DQRR-handling if it's interrupt-driven */
- if (is & QM_PIRQ_DQRI)
+ if (is & QM_PIRQ_DQRI) {
__poll_portal_fast(p, QMAN_POLL_LIMIT);
+ clear = QM_DQAVAIL_MASK | QM_PIRQ_DQRI;
+ }
/* Handling of anything else that's interrupt-driven */
- clear |= __poll_portal_slow(p, is);
+ clear |= __poll_portal_slow(p, is) & QM_PIRQ_SLOW;
qm_out(&p->p, QM_REG_ISR, clear);
return IRQ_HANDLED;
}
diff --git a/drivers/soc/fsl/qe/qe_tdm.c b/drivers/soc/fsl/qe/qe_tdm.c
index f78c34647ca2..76480df195a8 100644
--- a/drivers/soc/fsl/qe/qe_tdm.c
+++ b/drivers/soc/fsl/qe/qe_tdm.c
@@ -44,10 +44,6 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
const char *sprop;
int ret = 0;
u32 val;
- struct resource *res;
- struct device_node *np2;
- static int siram_init_flag;
- struct platform_device *pdev;
sprop = of_get_property(np, "fsl,rx-sync-clock", NULL);
if (sprop) {
@@ -124,57 +120,6 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
utdm->siram_entry_id = val;
set_si_param(utdm, ut_info);
-
- np2 = of_find_compatible_node(NULL, NULL, "fsl,t1040-qe-si");
- if (!np2)
- return -EINVAL;
-
- pdev = of_find_device_by_node(np2);
- if (!pdev) {
- pr_err("%pOFn: failed to lookup pdev\n", np2);
- of_node_put(np2);
- return -EINVAL;
- }
-
- of_node_put(np2);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- utdm->si_regs = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(utdm->si_regs)) {
- ret = PTR_ERR(utdm->si_regs);
- goto err_miss_siram_property;
- }
-
- np2 = of_find_compatible_node(NULL, NULL, "fsl,t1040-qe-siram");
- if (!np2) {
- ret = -EINVAL;
- goto err_miss_siram_property;
- }
-
- pdev = of_find_device_by_node(np2);
- if (!pdev) {
- ret = -EINVAL;
- pr_err("%pOFn: failed to lookup pdev\n", np2);
- of_node_put(np2);
- goto err_miss_siram_property;
- }
-
- of_node_put(np2);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- utdm->siram = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(utdm->siram)) {
- ret = PTR_ERR(utdm->siram);
- goto err_miss_siram_property;
- }
-
- if (siram_init_flag == 0) {
- memset_io(utdm->siram, 0, resource_size(res));
- siram_init_flag = 1;
- }
-
- return ret;
-
-err_miss_siram_property:
- devm_iounmap(&pdev->dev, utdm->si_regs);
return ret;
}
EXPORT_SYMBOL(ucc_of_parse_tdm);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-28 13:31:20 +0300