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drivers: bluetooth: hci: BlueNRG-MS: Hold on CS

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In case of BlueNRG-MS, it is necessary to prevent SPI driver to release CS,
and instead, let current driver manage CS release.
So, add SPI_HOLD_ON_CS to operation field

Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
This commit is contained in:
Alexandre Bourdiol 2022-03-08 09:43:51 +01:00 • committed by Carles Cufí
commit 2c4d55042c
1 changed files with 9 additions and 0 deletions
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9
drivers/bluetooth/hci/spi.c
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@ -116,8 +116,17 @@ struct bluenrg_aci_cmd_ll_param {
static int bt_spi_send_aci_config_data_controller_mode(void);
#endif /* CONFIG_BT_BLUENRG_ACI */
#if defined(CONFIG_BT_SPI_BLUENRG)
/* In case of BlueNRG-MS, it is necessary to prevent SPI driver to release CS,
* and instead, let current driver manage CS release. see kick_cs()/release_cs()
* So, add SPI_HOLD_ON_CS to operation field.
*/
static const struct spi_dt_spec bus = SPI_DT_SPEC_INST_GET(
0, SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8) | SPI_HOLD_ON_CS, 0);
#else
static const struct spi_dt_spec bus = SPI_DT_SPEC_INST_GET(
0, SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8), 0);
#endif
static struct spi_buf spi_tx_buf;
static struct spi_buf spi_rx_buf;