michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: spi: nrfx_spim: max chunk length is SoC specific

Browse source 
The maximum transfer chunk length is SoC specific, not instance
specific. This patch defines MAX_CHUNK_LEN at driver level in a SoC
specific manner instead of using HAL values that are instance specific
but that always take the same value depending on the SoC.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2022-06-20 17:03:47 +02:00 • committed by Marti Bolivar
commit 72cc583dc9
1 changed files with 5 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

9
drivers/spi/spi_nrfx_spim.c
View file

@ -26,6 +26,9 @@ LOG_MODULE_REGISTER(spi_nrfx_spim, CONFIG_SPI_LOG_LEVEL);
#define SPI_BUFFER_IN_RAM 1
#endif
/* Maximum chunk length (depends on the EasyDMA bits, equal for all instances) */
#define MAX_CHUNK_LEN BIT_MASK(SPIM0_EASYDMA_MAXCNT_SIZE)
struct spi_nrfx_data {
struct spi_context ctx;
const struct device *dev;
@ -44,7 +47,6 @@ struct spi_nrfx_data {
struct spi_nrfx_config {
nrfx_spim_t spim;
size_t max_chunk_len;
uint32_t max_freq;
nrfx_spim_config_t def_config;
#ifdef CONFIG_PINCTRL
@ -304,8 +306,8 @@ static void transfer_next_chunk(const struct device *dev)
tx_buf = dev_data->buffer;
}
#endif
if (chunk_len > dev_config->max_chunk_len) {
chunk_len = dev_config->max_chunk_len;
if (chunk_len > MAX_CHUNK_LEN) {
chunk_len = MAX_CHUNK_LEN;
}
dev_data->chunk_len = chunk_len;
@ -567,7 +569,6 @@ static int spim_nrfx_pm_action(const struct device *dev,
IF_ENABLED(CONFIG_PINCTRL, (PINCTRL_DT_DEFINE(SPIM(idx)))); \
static const struct spi_nrfx_config spi_##idx##z_config = { \
.spim = NRFX_SPIM_INSTANCE(idx), \
.max_chunk_len = (1 << SPIM##idx##_EASYDMA_MAXCNT_SIZE) - 1, \
.max_freq = SPIM_PROP(idx, max_frequency), \
.def_config = { \
SPI_NRFX_SPIM_PIN_CFG(idx) \