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drivers: eswifi: Remove unused 'csn' field from struct

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The 'csn' field is not being used so remove it.

Signed-off-by: Kumar Gala <galak@kernel.org>
This commit is contained in:
Kumar Gala 2022-07-06 08:46:32 -05:00 • committed by Kumar Gala
commit 1cce353536
1 changed files with 1 additions and 2 deletions
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drivers/wifi/eswifi/eswifi_bus_spi.c
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@ -23,7 +23,6 @@ K_KERNEL_STACK_MEMBER(eswifi_spi_poll_stack, ESWIFI_SPI_THREAD_STACK_SIZE);
#define SPI_READ_CHUNK_SIZE 32 #define SPI_READ_CHUNK_SIZE 32
struct eswifi_spi_config { struct eswifi_spi_config {
struct gpio_dt_spec csn;
struct gpio_dt_spec dr; struct gpio_dt_spec dr;
struct spi_dt_spec bus; struct spi_dt_spec bus;
}; };
@ -116,7 +115,7 @@ static int eswifi_spi_request(struct eswifi_dev *eswifi, char *cmd, size_t clen,
/* /*
* CMD/DATA protocol: * CMD/DATA protocol:
* 1. Module raises data-ready when ready for **command phase** * 1. Module raises data-ready when ready for **command phase**
* 2. Host announces command start by lowering chip-select (csn) * 2. Host announces command start by lowering chip-select
* 3. Host write the command (possibly several spi transfers) * 3. Host write the command (possibly several spi transfers)
* 4. Host announces end of command by raising chip-select * 4. Host announces end of command by raising chip-select
* 5. Module lowers data-ready signal * 5. Module lowers data-ready signal