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-rw-r--r--drivers/soc/ti/knav_dma.c29
-rw-r--r--drivers/soc/ti/knav_qmss_queue.c21
-rw-r--r--drivers/soc/ti/omap_prm.c7
-rw-r--r--drivers/soc/ti/pm33xx.c6
-rw-r--r--drivers/soc/ti/pruss.c3
-rw-r--r--drivers/soc/ti/ti_sci_pm_domains.c2
-rw-r--r--drivers/soc/ti/wkup_m3_ipc.c210
7 files changed, 233 insertions, 45 deletions
diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 700d8eecd8c4..d756591de973 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -415,9 +415,8 @@ static int of_channel_match_helper(struct device_node *np, const char *name,
void *knav_dma_open_channel(struct device *dev, const char *name,
struct knav_dma_cfg *config)
{
- struct knav_dma_chan *chan;
- struct knav_dma_device *dma;
- bool found = false;
+ struct knav_dma_device *dma = NULL, *iter1;
+ struct knav_dma_chan *chan = NULL, *iter2;
int chan_num = -1;
const char *instance;
@@ -444,33 +443,32 @@ void *knav_dma_open_channel(struct device *dev, const char *name,
}
/* Look for correct dma instance */
- list_for_each_entry(dma, &kdev->list, list) {
- if (!strcmp(dma->name, instance)) {
- found = true;
+ list_for_each_entry(iter1, &kdev->list, list) {
+ if (!strcmp(iter1->name, instance)) {
+ dma = iter1;
break;
}
}
- if (!found) {
+ if (!dma) {
dev_err(kdev->dev, "No DMA instance with name %s\n", instance);
return (void *)-EINVAL;
}
/* Look for correct dma channel from dma instance */
- found = false;
- list_for_each_entry(chan, &dma->chan_list, list) {
+ list_for_each_entry(iter2, &dma->chan_list, list) {
if (config->direction == DMA_MEM_TO_DEV) {
- if (chan->channel == chan_num) {
- found = true;
+ if (iter2->channel == chan_num) {
+ chan = iter2;
break;
}
} else {
- if (chan->flow == chan_num) {
- found = true;
+ if (iter2->flow == chan_num) {
+ chan = iter2;
break;
}
}
}
- if (!found) {
+ if (!chan) {
dev_err(kdev->dev, "channel %d is not in DMA %s\n",
chan_num, instance);
return (void *)-EINVAL;
@@ -747,9 +745,8 @@ static int knav_dma_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&kdev->list);
pm_runtime_enable(kdev->dev);
- ret = pm_runtime_get_sync(kdev->dev);
+ ret = pm_runtime_resume_and_get(kdev->dev);
if (ret < 0) {
- pm_runtime_put_noidle(kdev->dev);
dev_err(kdev->dev, "unable to enable pktdma, err %d\n", ret);
goto err_pm_disable;
}
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 2ac3856b8d42..92af7d1b6f5b 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -758,10 +758,9 @@ void *knav_pool_create(const char *name,
int num_desc, int region_id)
{
struct knav_region *reg_itr, *region = NULL;
- struct knav_pool *pool, *pi;
+ struct knav_pool *pool, *pi = NULL, *iter;
struct list_head *node;
unsigned last_offset;
- bool slot_found;
int ret;
if (!kdev)
@@ -790,7 +789,7 @@ void *knav_pool_create(const char *name,
}
pool->queue = knav_queue_open(name, KNAV_QUEUE_GP, 0);
- if (IS_ERR_OR_NULL(pool->queue)) {
+ if (IS_ERR(pool->queue)) {
dev_err(kdev->dev,
"failed to open queue for pool(%s), error %ld\n",
name, PTR_ERR(pool->queue));
@@ -816,18 +815,17 @@ void *knav_pool_create(const char *name,
* the request
*/
last_offset = 0;
- slot_found = false;
node = &region->pools;
- list_for_each_entry(pi, &region->pools, region_inst) {
- if ((pi->region_offset - last_offset) >= num_desc) {
- slot_found = true;
+ list_for_each_entry(iter, &region->pools, region_inst) {
+ if ((iter->region_offset - last_offset) >= num_desc) {
+ pi = iter;
break;
}
- last_offset = pi->region_offset + pi->num_desc;
+ last_offset = iter->region_offset + iter->num_desc;
}
- node = &pi->region_inst;
- if (slot_found) {
+ if (pi) {
+ node = &pi->region_inst;
pool->region = region;
pool->num_desc = num_desc;
pool->region_offset = last_offset;
@@ -1785,9 +1783,8 @@ static int knav_queue_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&kdev->pdsps);
pm_runtime_enable(&pdev->dev);
- ret = pm_runtime_get_sync(&pdev->dev);
+ ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret < 0) {
- pm_runtime_put_noidle(&pdev->dev);
dev_err(dev, "Failed to enable QMSS\n");
return ret;
}
diff --git a/drivers/soc/ti/omap_prm.c b/drivers/soc/ti/omap_prm.c
index f32e1cbbe8c5..913b964374a4 100644
--- a/drivers/soc/ti/omap_prm.c
+++ b/drivers/soc/ti/omap_prm.c
@@ -941,23 +941,20 @@ static int omap_prm_probe(struct platform_device *pdev)
struct resource *res;
const struct omap_prm_data *data;
struct omap_prm *prm;
- const struct of_device_id *match;
int ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
- match = of_match_device(omap_prm_id_table, &pdev->dev);
- if (!match)
+ data = of_device_get_match_data(&pdev->dev);
+ if (!data)
return -ENOTSUPP;
prm = devm_kzalloc(&pdev->dev, sizeof(*prm), GFP_KERNEL);
if (!prm)
return -ENOMEM;
- data = match->data;
-
while (data->base != res->start) {
if (!data->base)
return -EINVAL;
diff --git a/drivers/soc/ti/pm33xx.c b/drivers/soc/ti/pm33xx.c
index 7bab4bbaf02d..ce09c42eaed2 100644
--- a/drivers/soc/ti/pm33xx.c
+++ b/drivers/soc/ti/pm33xx.c
@@ -555,11 +555,9 @@ static int am33xx_pm_probe(struct platform_device *pdev)
#endif /* CONFIG_SUSPEND */
pm_runtime_enable(dev);
- ret = pm_runtime_get_sync(dev);
- if (ret < 0) {
- pm_runtime_put_noidle(dev);
+ ret = pm_runtime_resume_and_get(dev);
+ if (ret < 0)
goto err_pm_runtime_disable;
- }
ret = pm_ops->init(am33xx_do_sram_idle);
if (ret) {
diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c
index b36779309e49..0e4ba0f89533 100644
--- a/drivers/soc/ti/pruss.c
+++ b/drivers/soc/ti/pruss.c
@@ -279,10 +279,9 @@ static int pruss_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, pruss);
pm_runtime_enable(dev);
- ret = pm_runtime_get_sync(dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret < 0) {
dev_err(dev, "couldn't enable module\n");
- pm_runtime_put_noidle(dev);
goto rpm_disable;
}
diff --git a/drivers/soc/ti/ti_sci_pm_domains.c b/drivers/soc/ti/ti_sci_pm_domains.c
index 8afb3f45d263..a33ec7eaf23d 100644
--- a/drivers/soc/ti/ti_sci_pm_domains.c
+++ b/drivers/soc/ti/ti_sci_pm_domains.c
@@ -183,6 +183,8 @@ static int ti_sci_pm_domain_probe(struct platform_device *pdev)
devm_kcalloc(dev, max_id + 1,
sizeof(*pd_provider->data.domains),
GFP_KERNEL);
+ if (!pd_provider->data.domains)
+ return -ENOMEM;
pd_provider->data.num_domains = max_id + 1;
pd_provider->data.xlate = ti_sci_pd_xlate;
diff --git a/drivers/soc/ti/wkup_m3_ipc.c b/drivers/soc/ti/wkup_m3_ipc.c
index 2f03ced0f411..0076d467ff6b 100644
--- a/drivers/soc/ti/wkup_m3_ipc.c
+++ b/drivers/soc/ti/wkup_m3_ipc.c
@@ -7,7 +7,9 @@
* Dave Gerlach <d-gerlach@ti.com>
*/
+#include <linux/debugfs.h>
#include <linux/err.h>
+#include <linux/firmware.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/interrupt.h>
@@ -40,12 +42,30 @@
#define M3_FW_VERSION_MASK 0xffff
#define M3_WAKE_SRC_MASK 0xff
+#define IPC_MEM_TYPE_SHIFT (0x0)
+#define IPC_MEM_TYPE_MASK (0x7 << 0)
+#define IPC_VTT_STAT_SHIFT (0x3)
+#define IPC_VTT_STAT_MASK (0x1 << 3)
+#define IPC_VTT_GPIO_PIN_SHIFT (0x4)
+#define IPC_VTT_GPIO_PIN_MASK (0x3f << 4)
+#define IPC_IO_ISOLATION_STAT_SHIFT (10)
+#define IPC_IO_ISOLATION_STAT_MASK (0x1 << 10)
+
+#define IPC_DBG_HALT_SHIFT (11)
+#define IPC_DBG_HALT_MASK (0x1 << 11)
+
#define M3_STATE_UNKNOWN 0
#define M3_STATE_RESET 1
#define M3_STATE_INITED 2
#define M3_STATE_MSG_FOR_LP 3
#define M3_STATE_MSG_FOR_RESET 4
+#define WKUP_M3_SD_FW_MAGIC 0x570C
+
+#define WKUP_M3_DMEM_START 0x80000
+#define WKUP_M3_AUXDATA_OFFSET 0x1000
+#define WKUP_M3_AUXDATA_SIZE 0xFF
+
static struct wkup_m3_ipc *m3_ipc_state;
static const struct wkup_m3_wakeup_src wakeups[] = {
@@ -66,6 +86,148 @@ static const struct wkup_m3_wakeup_src wakeups[] = {
{.irq_nr = 0, .src = "Unknown"},
};
+/**
+ * wkup_m3_copy_aux_data - Copy auxiliary data to special region of m3 dmem
+ * @data - pointer to data
+ * @sz - size of data to copy (limit 256 bytes)
+ *
+ * Copies any additional blob of data to the wkup_m3 dmem to be used by the
+ * firmware
+ */
+static unsigned long wkup_m3_copy_aux_data(struct wkup_m3_ipc *m3_ipc,
+ const void *data, int sz)
+{
+ unsigned long aux_data_dev_addr;
+ void *aux_data_addr;
+
+ aux_data_dev_addr = WKUP_M3_DMEM_START + WKUP_M3_AUXDATA_OFFSET;
+ aux_data_addr = rproc_da_to_va(m3_ipc->rproc,
+ aux_data_dev_addr,
+ WKUP_M3_AUXDATA_SIZE,
+ NULL);
+ memcpy(aux_data_addr, data, sz);
+
+ return WKUP_M3_AUXDATA_OFFSET;
+}
+
+static void wkup_m3_scale_data_fw_cb(const struct firmware *fw, void *context)
+{
+ unsigned long val, aux_base;
+ struct wkup_m3_scale_data_header hdr;
+ struct wkup_m3_ipc *m3_ipc = context;
+ struct device *dev = m3_ipc->dev;
+
+ if (!fw) {
+ dev_err(dev, "Voltage scale fw name given but file missing.\n");
+ return;
+ }
+
+ memcpy(&hdr, fw->data, sizeof(hdr));
+
+ if (hdr.magic != WKUP_M3_SD_FW_MAGIC) {
+ dev_err(dev, "PM: Voltage Scale Data binary does not appear valid.\n");
+ goto release_sd_fw;
+ }
+
+ aux_base = wkup_m3_copy_aux_data(m3_ipc, fw->data + sizeof(hdr),
+ fw->size - sizeof(hdr));
+
+ val = (aux_base + hdr.sleep_offset);
+ val |= ((aux_base + hdr.wake_offset) << 16);
+
+ m3_ipc->volt_scale_offsets = val;
+
+release_sd_fw:
+ release_firmware(fw);
+};
+
+static int wkup_m3_init_scale_data(struct wkup_m3_ipc *m3_ipc,
+ struct device *dev)
+{
+ int ret = 0;
+
+ /*
+ * If no name is provided, user has already been warned, pm will
+ * still work so return 0
+ */
+
+ if (!m3_ipc->sd_fw_name)
+ return ret;
+
+ ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
+ m3_ipc->sd_fw_name, dev, GFP_ATOMIC,
+ m3_ipc, wkup_m3_scale_data_fw_cb);
+
+ return ret;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void wkup_m3_set_halt_late(bool enabled)
+{
+ if (enabled)
+ m3_ipc_state->halt = (1 << IPC_DBG_HALT_SHIFT);
+ else
+ m3_ipc_state->halt = 0;
+}
+
+static int option_get(void *data, u64 *val)
+{
+ u32 *option = data;
+
+ *val = *option;
+
+ return 0;
+}
+
+static int option_set(void *data, u64 val)
+{
+ u32 *option = data;
+
+ *option = val;
+
+ if (option == &m3_ipc_state->halt) {
+ if (val)
+ wkup_m3_set_halt_late(true);
+ else
+ wkup_m3_set_halt_late(false);
+ }
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(wkup_m3_ipc_option_fops, option_get, option_set,
+ "%llu\n");
+
+static int wkup_m3_ipc_dbg_init(struct wkup_m3_ipc *m3_ipc)
+{
+ m3_ipc->dbg_path = debugfs_create_dir("wkup_m3_ipc", NULL);
+
+ if (!m3_ipc->dbg_path)
+ return -EINVAL;
+
+ (void)debugfs_create_file("enable_late_halt", 0644,
+ m3_ipc->dbg_path,
+ &m3_ipc->halt,
+ &wkup_m3_ipc_option_fops);
+
+ return 0;
+}
+
+static inline void wkup_m3_ipc_dbg_destroy(struct wkup_m3_ipc *m3_ipc)
+{
+ debugfs_remove_recursive(m3_ipc->dbg_path);
+}
+#else
+static inline int wkup_m3_ipc_dbg_init(struct wkup_m3_ipc *m3_ipc)
+{
+ return 0;
+}
+
+static inline void wkup_m3_ipc_dbg_destroy(struct wkup_m3_ipc *m3_ipc)
+{
+}
+#endif /* CONFIG_DEBUG_FS */
+
static void am33xx_txev_eoi(struct wkup_m3_ipc *m3_ipc)
{
writel(AM33XX_M3_TXEV_ACK,
@@ -130,6 +292,7 @@ static irqreturn_t wkup_m3_txev_handler(int irq, void *ipc_data)
}
m3_ipc->state = M3_STATE_INITED;
+ wkup_m3_init_scale_data(m3_ipc, dev);
complete(&m3_ipc->sync_complete);
break;
case M3_STATE_MSG_FOR_RESET:
@@ -215,6 +378,17 @@ static int wkup_m3_is_available(struct wkup_m3_ipc *m3_ipc)
(m3_ipc->state != M3_STATE_UNKNOWN));
}
+static void wkup_m3_set_vtt_gpio(struct wkup_m3_ipc *m3_ipc, int gpio)
+{
+ m3_ipc->vtt_conf = (1 << IPC_VTT_STAT_SHIFT) |
+ (gpio << IPC_VTT_GPIO_PIN_SHIFT);
+}
+
+static void wkup_m3_set_io_isolation(struct wkup_m3_ipc *m3_ipc)
+{
+ m3_ipc->isolation_conf = (1 << IPC_IO_ISOLATION_STAT_SHIFT);
+}
+
/* Public functions */
/**
* wkup_m3_set_mem_type - Pass wkup_m3 which type of memory is in use
@@ -280,12 +454,15 @@ static int wkup_m3_prepare_low_power(struct wkup_m3_ipc *m3_ipc, int state)
switch (state) {
case WKUP_M3_DEEPSLEEP:
m3_power_state = IPC_CMD_DS0;
+ wkup_m3_ctrl_ipc_write(m3_ipc, m3_ipc->volt_scale_offsets, 5);
break;
case WKUP_M3_STANDBY:
m3_power_state = IPC_CMD_STANDBY;
+ wkup_m3_ctrl_ipc_write(m3_ipc, DS_IPC_DEFAULT, 5);
break;
case WKUP_M3_IDLE:
m3_power_state = IPC_CMD_IDLE;
+ wkup_m3_ctrl_ipc_write(m3_ipc, DS_IPC_DEFAULT, 5);
break;
default:
return 1;
@@ -294,11 +471,13 @@ static int wkup_m3_prepare_low_power(struct wkup_m3_ipc *m3_ipc, int state)
/* Program each required IPC register then write defaults to others */
wkup_m3_ctrl_ipc_write(m3_ipc, m3_ipc->resume_addr, 0);
wkup_m3_ctrl_ipc_write(m3_ipc, m3_power_state, 1);
- wkup_m3_ctrl_ipc_write(m3_ipc, m3_ipc->mem_type, 4);
+ wkup_m3_ctrl_ipc_write(m3_ipc, m3_ipc->mem_type |
+ m3_ipc->vtt_conf |
+ m3_ipc->isolation_conf |
+ m3_ipc->halt, 4);
wkup_m3_ctrl_ipc_write(m3_ipc, DS_IPC_DEFAULT, 2);
wkup_m3_ctrl_ipc_write(m3_ipc, DS_IPC_DEFAULT, 3);
- wkup_m3_ctrl_ipc_write(m3_ipc, DS_IPC_DEFAULT, 5);
wkup_m3_ctrl_ipc_write(m3_ipc, DS_IPC_DEFAULT, 6);
wkup_m3_ctrl_ipc_write(m3_ipc, DS_IPC_DEFAULT, 7);
@@ -433,12 +612,13 @@ static int wkup_m3_rproc_boot_thread(void *arg)
static int wkup_m3_ipc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- int irq, ret;
+ int irq, ret, temp;
phandle rproc_phandle;
struct rproc *m3_rproc;
struct resource *res;
struct task_struct *task;
struct wkup_m3_ipc *m3_ipc;
+ struct device_node *np = dev->of_node;
m3_ipc = devm_kzalloc(dev, sizeof(*m3_ipc), GFP_KERNEL);
if (!m3_ipc)
@@ -450,10 +630,8 @@ static int wkup_m3_ipc_probe(struct platform_device *pdev)
return PTR_ERR(m3_ipc->ipc_mem_base);
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(&pdev->dev, "no irq resource\n");
+ if (irq < 0)
return irq;
- }
ret = devm_request_irq(dev, irq, wkup_m3_txev_handler,
0, "wkup_m3_txev", m3_ipc);
@@ -496,6 +674,22 @@ static int wkup_m3_ipc_probe(struct platform_device *pdev)
m3_ipc->ops = &ipc_ops;
+ if (!of_property_read_u32(np, "ti,vtt-gpio-pin", &temp)) {
+ if (temp >= 0 && temp <= 31)
+ wkup_m3_set_vtt_gpio(m3_ipc, temp);
+ else
+ dev_warn(dev, "Invalid VTT GPIO(%d) pin\n", temp);
+ }
+
+ if (of_find_property(np, "ti,set-io-isolation", NULL))
+ wkup_m3_set_io_isolation(m3_ipc);
+
+ ret = of_property_read_string(np, "firmware-name",
+ &m3_ipc->sd_fw_name);
+ if (ret) {
+ dev_dbg(dev, "Voltage scaling data blob not provided from DT.\n");
+ };
+
/*
* Wait for firmware loading completion in a thread so we
* can boot the wkup_m3 as soon as it's ready without holding
@@ -510,6 +704,8 @@ static int wkup_m3_ipc_probe(struct platform_device *pdev)
goto err_put_rproc;
}
+ wkup_m3_ipc_dbg_init(m3_ipc);
+
return 0;
err_put_rproc:
@@ -521,6 +717,8 @@ err_free_mbox:
static int wkup_m3_ipc_remove(struct platform_device *pdev)
{
+ wkup_m3_ipc_dbg_destroy(m3_ipc_state);
+
mbox_free_channel(m3_ipc_state->mbox);
rproc_shutdown(m3_ipc_state->rproc);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 11:00:28 +0100