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spi: atmel: simplify MR register update in cs_activate()

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simplified the MR register configuration by updating only the PCS field
using SPI_BFINS() instead of rewriting the entire register.
Avoids code duplication.

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Link: https://patch.msgid.link/20250730101015.323964-1-manikandan.m@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Manikandan Muralidharan
2025-07-30 15:40:13 +05:30
committed by Mark Brown
parent f1ac30a862
commit 379f819733
1 changed files with 2 additions and 12 deletions
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14
drivers/spi/spi-atmel.c
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@@ -397,20 +397,10 @@ static void cs_activate(struct atmel_spi *as, struct spi_device *spi)
* on CS1,2,3 needs SPI_CSR0.BITS config as SPI_CSR1,2,3.BITS
*/
spi_writel(as, CSR0, asd->csr);
if (as->caps.has_wdrbt) {
spi_writel(as, MR,
SPI_BF(PCS, ~(0x01 << chip_select))
| SPI_BIT(WDRBT)
| SPI_BIT(MODFDIS)
| SPI_BIT(MSTR));
} else {
spi_writel(as, MR,
SPI_BF(PCS, ~(0x01 << chip_select))
| SPI_BIT(MODFDIS)
| SPI_BIT(MSTR));
}
mr = spi_readl(as, MR);
mr = SPI_BFINS(PCS, ~(0x01 << chip_select), mr);
spi_writel(as, MR, mr);
/*
* Ensures the clock polarity is valid before we actually