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drivers: dma: atmel_sam0: Convert to use devicetree macros for dma dev

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Convert to using DT_INST_LABEL() in the dma driver and convert dma users
to use the DMA property macros to get the dma controller name.  We make
the assumption in the drivers that there is a single DMA controller
instance.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2020-05-05 05:24:57 -05:00 • committed by Kumar Gala
commit a58777e251
5 changed files with 15 additions and 4 deletions
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2
drivers/dma/dma_sam0.c
View file

@ -458,6 +458,6 @@ static const struct dma_driver_api dma_sam0_api = {
.get_status = dma_sam0_get_status,
};
DEVICE_AND_API_INIT(dma_sam0_0, CONFIG_DMA_0_NAME, &dma_sam0_init,
DEVICE_AND_API_INIT(dma_sam0_0, DT_INST_LABEL(0), &dma_sam0_init,
&dmac_data, NULL, POST_KERNEL,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &dma_sam0_api);

4
drivers/i2c/i2c_sam0.c
View file

@ -36,6 +36,7 @@ struct i2c_sam0_dev_config {
void (*irq_config_func)(struct device *dev);
#ifdef CONFIG_I2C_SAM0_DMA_DRIVEN
char *dma_dev;
u8_t write_dma_request;
u8_t read_dma_request;
u8_t dma_channel;
@ -711,7 +712,7 @@ static int i2c_sam0_initialize(struct device *dev)
#ifdef CONFIG_I2C_SAM0_DMA_DRIVEN
data->dma = device_get_binding(CONFIG_DMA_0_NAME);
data->dma = device_get_binding(cfg->dma_dev);
#endif
@ -733,6 +734,7 @@ static const struct i2c_driver_api i2c_sam0_driver_api = {
#ifdef CONFIG_I2C_SAM0_DMA_DRIVEN
#define I2C_SAM0_DMA_CHANNELS(n) \
.dma_dev = ATMEL_SAM0_DT_INST_DMA_NAME(n, tx), \
.write_dma_request = ATMEL_SAM0_DT_INST_DMA_TRIGSRC(n, tx), \
.read_dma_request = ATMEL_SAM0_DT_INST_DMA_TRIGSRC(n, rx), \
.dma_channel = ATMEL_SAM0_DT_INST_DMA_CHANNEL(n, rx),

4
drivers/serial/uart_sam0.c
View file

@ -36,6 +36,7 @@ struct uart_sam0_dev_cfg {
void (*irq_config_func)(struct device *dev);
#endif
#if CONFIG_UART_ASYNC_API
char *dma_dev;
u8_t tx_dma_request;
u8_t tx_dma_channel;
u8_t rx_dma_request;
@ -555,7 +556,7 @@ static int uart_sam0_init(struct device *dev)
#ifdef CONFIG_UART_ASYNC_API
dev_data->cfg = cfg;
dev_data->dma = device_get_binding(CONFIG_DMA_0_NAME);
dev_data->dma = device_get_binding(cfg->dma_dev);
k_delayed_work_init(&dev_data->tx_timeout_work, uart_sam0_tx_timeout);
k_delayed_work_init(&dev_data->rx_timeout_work, uart_sam0_rx_timeout);
@ -1084,6 +1085,7 @@ static void uart_sam0_irq_config_##n(struct device *dev) \
#if CONFIG_UART_ASYNC_API
#define UART_SAM0_DMA_CHANNELS(n) \
.dma_dev = ATMEL_SAM0_DT_INST_DMA_NAME(n, tx), \
.tx_dma_request = ATMEL_SAM0_DT_INST_DMA_TRIGSRC(n, tx), \
.tx_dma_channel = ATMEL_SAM0_DT_INST_DMA_CHANNEL(n, tx), \
.rx_dma_request = ATMEL_SAM0_DT_INST_DMA_TRIGSRC(n, rx), \

4
drivers/spi/spi_sam0.c
View file

@ -33,6 +33,7 @@ struct spi_sam0_config {
u16_t gclk_clkctrl_id;
#endif
#ifdef CONFIG_SPI_ASYNC
char *dma_dev;
u8_t tx_dma_request;
u8_t tx_dma_channel;
u8_t rx_dma_request;
@ -700,7 +701,7 @@ static int spi_sam0_init(struct device *dev)
#ifdef CONFIG_SPI_ASYNC
data->dma = device_get_binding(CONFIG_DMA_0_NAME);
data->dma = device_get_binding(cfg->dma_dev);
#endif
@ -723,6 +724,7 @@ static const struct spi_driver_api spi_sam0_driver_api = {
#if CONFIG_SPI_ASYNC
#define SPI_SAM0_DMA_CHANNELS(n) \
.dma_dev = ATMEL_SAM0_DT_INST_DMA_NAME(n, tx), \
.tx_dma_request = ATMEL_SAM0_DT_INST_DMA_TRIGSRC(n, tx), \
.tx_dma_channel = ATMEL_SAM0_DT_INST_DMA_CHANNEL(n, tx), \
.rx_dma_request = ATMEL_SAM0_DT_INST_DMA_TRIGSRC(n, rx), \

5
soc/arm/atmel_sam0/common/atmel_sam0_dt.h
View file

@ -29,6 +29,11 @@
ATMEL_SAM0_DT_INST_DMA_CELL(n, name, trigsrc)
#define ATMEL_SAM0_DT_INST_DMA_CHANNEL(n, name) \
ATMEL_SAM0_DT_INST_DMA_CELL(n, name, channel)
#define ATMEL_SAM0_DT_INST_DMA_NAME(n, name) \
COND_CODE_1(DT_INST_NODE_HAS_PROP(n, dmas), \
(DT_INST_DMAS_LABEL_BY_NAME(n, name)), \
(NULL))
/* Use to check if a sercom 'n' is enabled for a given 'compat' */
#define ATMEL_SAM0_DT_SERCOM_CHECK(n, compat) \