[PATCH v3 1/3] staging: pi433: fix validation for min bit rate supported by the device

From: Paulo Miguel Almeida
Date: Tue Jan 18 2022 - 18:04:25 EST


rf69 datasheets establishes that the minimum supported bit rate is
1.2 kbps regardless of modulation.

this patch replaces the errouneous validation with the correct value

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@xxxxxxxxx>
---
drivers/staging/pi433/rf69.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c
index ee8c81d164e1..f4ac17adcd83 100644
--- a/drivers/staging/pi433/rf69.c
+++ b/drivers/staging/pi433/rf69.c
@@ -226,14 +226,12 @@ int rf69_set_modulation_shaping(struct spi_device *spi,
int rf69_set_bit_rate(struct spi_device *spi, u16 bit_rate)
{
int retval;
- u32 bit_rate_min;
u32 bit_rate_reg;
u8 msb;
u8 lsb;

// check input value
- bit_rate_min = F_OSC / 8388608; // 8388608 = 2^23;
- if (bit_rate < bit_rate_min) {
+ if (bit_rate < 1200) {
dev_dbg(&spi->dev, "setBitRate: illegal input param");
return -EINVAL;
}
--
2.25.4