#define SET_WRITE 0x7FFF /* usage: and operation */
#define SET_READ 0x8000 /* usage: or operation */
-#define WFX_RESET_INVERTED 1
+static const struct wfx_platform_data pdata_wf200 = {
+ .file_fw = "wfx/wfm_wf200",
+ .file_pds = "wfx/wf200.pds",
+ .use_rising_clk = true,
+};
+
+static const struct wfx_platform_data pdata_brd4001a = {
+ .file_fw = "wfx/wfm_wf200",
+ .file_pds = "wfx/brd4001a.pds",
+ .use_rising_clk = true,
+};
-static const struct wfx_platform_data wfx_spi_pdata = {
- .file_fw = "wfm_wf200",
- .file_pds = "wf200.pds",
+static const struct wfx_platform_data pdata_brd8022a = {
+ .file_fw = "wfx/wfm_wf200",
+ .file_pds = "wfx/brd8022a.pds",
+ .use_rising_clk = true,
+};
+
+static const struct wfx_platform_data pdata_brd8023a = {
+ .file_fw = "wfx/wfm_wf200",
+ .file_pds = "wfx/brd8023a.pds",
.use_rising_clk = true,
};
bool need_swab;
};
-/* The chip reads 16bits of data at time and place them directly into (little
- * endian) CPU register. So, the chip expects bytes order to be "B1 B0 B3 B2"
- * (while LE is "B0 B1 B2 B3" and BE is "B3 B2 B1 B0")
+/* The chip reads 16bits of data at time and place them directly into (little endian) CPU register.
+ * So, the chip expects bytes order to be "B1 B0 B3 B2" (while LE is "B0 B1 B2 B3" and BE is
+ * "B3 B2 B1 B0")
*
- * A little endian host with bits_per_word == 16 should do the right job
- * natively. The code below to support big endian host and commonly used SPI
- * 8bits.
+ * A little endian host with bits_per_word == 16 should do the right job natively. The code below to
+ * support big endian host and commonly used SPI 8bits.
*/
-static int wfx_spi_copy_from_io(void *priv, unsigned int addr,
- void *dst, size_t count)
+static int wfx_spi_copy_from_io(void *priv, unsigned int addr, void *dst, size_t count)
{
struct wfx_spi_priv *bus = priv;
u16 regaddr = (addr << 12) | (count / 2) | SET_READ;
- struct spi_message m;
- struct spi_transfer t_addr = {
- .tx_buf = ®addr,
- .len = sizeof(regaddr),
+ struct spi_message m;
+ struct spi_transfer t_addr = {
+ .tx_buf = ®addr,
+ .len = sizeof(regaddr),
};
- struct spi_transfer t_msg = {
- .rx_buf = dst,
- .len = count,
+ struct spi_transfer t_msg = {
+ .rx_buf = dst,
+ .len = count,
};
u16 *dst16 = dst;
int ret, i;
return ret;
}
-static int wfx_spi_copy_to_io(void *priv, unsigned int addr,
- const void *src, size_t count)
+static int wfx_spi_copy_to_io(void *priv, unsigned int addr, const void *src, size_t count)
{
struct wfx_spi_priv *bus = priv;
u16 regaddr = (addr << 12) | (count / 2);
/* FIXME: use a bounce buffer */
u16 *src16 = (void *)src;
int ret, i;
- struct spi_message m;
- struct spi_transfer t_addr = {
- .tx_buf = ®addr,
- .len = sizeof(regaddr),
+ struct spi_message m;
+ struct spi_transfer t_addr = {
+ .tx_buf = ®addr,
+ .len = sizeof(regaddr),
};
- struct spi_transfer t_msg = {
- .tx_buf = src,
- .len = count,
+ struct spi_transfer t_msg = {
+ .tx_buf = src,
+ .len = count,
};
WARN(count % 2, "buffer size must be a multiple of 2");
flags = IRQF_TRIGGER_HIGH;
flags |= IRQF_ONESHOT;
return devm_request_threaded_irq(&bus->func->dev, bus->func->irq, NULL,
- wfx_spi_irq_handler, IRQF_ONESHOT,
- "wfx", bus);
+ wfx_spi_irq_handler, flags, "wfx", bus);
}
static int wfx_spi_irq_unsubscribe(void *priv)
static size_t wfx_spi_align_size(void *priv, size_t size)
{
- /* Most of SPI controllers avoid DMA if buffer size is not 32bit aligned
- */
+ /* Most of SPI controllers avoid DMA if buffer size is not 32bit aligned */
return ALIGN(size, 4);
}
-static const struct hwbus_ops wfx_spi_hwbus_ops = {
- .copy_from_io = wfx_spi_copy_from_io,
- .copy_to_io = wfx_spi_copy_to_io,
- .irq_subscribe = wfx_spi_irq_subscribe,
+static const struct wfx_hwbus_ops wfx_spi_hwbus_ops = {
+ .copy_from_io = wfx_spi_copy_from_io,
+ .copy_to_io = wfx_spi_copy_to_io,
+ .irq_subscribe = wfx_spi_irq_subscribe,
.irq_unsubscribe = wfx_spi_irq_unsubscribe,
- .lock = wfx_spi_lock,
- .unlock = wfx_spi_unlock,
- .align_size = wfx_spi_align_size,
+ .lock = wfx_spi_lock,
+ .unlock = wfx_spi_unlock,
+ .align_size = wfx_spi_align_size,
};
static int wfx_spi_probe(struct spi_device *func)
{
+ struct wfx_platform_data *pdata;
struct wfx_spi_priv *bus;
int ret;
ret = spi_setup(func);
if (ret)
return ret;
+ pdata = (struct wfx_platform_data *)spi_get_device_id(func)->driver_data;
+ if (!pdata) {
+ dev_err(&func->dev, "unable to retrieve driver data (please report)\n");
+ return -ENODEV;
+ }
+
/* Trace below is also displayed by spi_setup() if compiled with DEBUG */
dev_dbg(&func->dev, "SPI params: CS=%d, mode=%d bits/word=%d speed=%d\n",
- func->chip_select, func->mode, func->bits_per_word,
- func->max_speed_hz);
+ func->chip_select, func->mode, func->bits_per_word, func->max_speed_hz);
if (func->bits_per_word != 16 && func->bits_per_word != 8)
- dev_warn(&func->dev, "unusual bits/word value: %d\n",
- func->bits_per_word);
+ dev_warn(&func->dev, "unusual bits/word value: %d\n", func->bits_per_word);
if (func->max_speed_hz > 50000000)
- dev_warn(&func->dev, "%dHz is a very high speed\n",
- func->max_speed_hz);
+ dev_warn(&func->dev, "%dHz is a very high speed\n", func->max_speed_hz);
bus = devm_kzalloc(&func->dev, sizeof(*bus), GFP_KERNEL);
if (!bus)
bus->need_swab = true;
spi_set_drvdata(func, bus);
- bus->gpio_reset = devm_gpiod_get_optional(&func->dev, "reset",
- GPIOD_OUT_LOW);
+ bus->gpio_reset = devm_gpiod_get_optional(&func->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(bus->gpio_reset))
return PTR_ERR(bus->gpio_reset);
if (!bus->gpio_reset) {
- dev_warn(&func->dev,
- "gpio reset is not defined, trying to load firmware anyway\n");
+ dev_warn(&func->dev, "gpio reset is not defined, trying to load firmware anyway\n");
} else {
gpiod_set_consumer_name(bus->gpio_reset, "wfx reset");
- if (spi_get_device_id(func)->driver_data & WFX_RESET_INVERTED)
- gpiod_toggle_active_low(bus->gpio_reset);
gpiod_set_value_cansleep(bus->gpio_reset, 1);
usleep_range(100, 150);
gpiod_set_value_cansleep(bus->gpio_reset, 0);
usleep_range(2000, 2500);
}
- bus->core = wfx_init_common(&func->dev, &wfx_spi_pdata,
- &wfx_spi_hwbus_ops, bus);
+ bus->core = wfx_init_common(&func->dev, pdata, &wfx_spi_hwbus_ops, bus);
if (!bus->core)
return -EIO;
* stripped.
*/
static const struct spi_device_id wfx_spi_id[] = {
- { "wfx-spi", WFX_RESET_INVERTED },
- { "wf200", 0 },
+ { "wf200", (kernel_ulong_t)&pdata_wf200 },
+ { "brd4001a", (kernel_ulong_t)&pdata_brd4001a },
+ { "brd8022a", (kernel_ulong_t)&pdata_brd8022a },
+ { "brd8023a", (kernel_ulong_t)&pdata_brd8023a },
{ },
};
MODULE_DEVICE_TABLE(spi, wfx_spi_id);
#ifdef CONFIG_OF
static const struct of_device_id wfx_spi_of_match[] = {
- { .compatible = "silabs,wfx-spi", .data = (void *)WFX_RESET_INVERTED },
{ .compatible = "silabs,wf200" },
+ { .compatible = "silabs,brd4001a" },
+ { .compatible = "silabs,brd8022a" },
+ { .compatible = "silabs,brd8023a" },
{ },
};
MODULE_DEVICE_TABLE(of, wfx_spi_of_match);
projects / platform / kernel / linux-starfive.git / blobdiff