linux-kernel - [PATCH] spi: cs42l43: Don't limit native CS to the first chip select

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Message-ID: <20240306161004.2205113-1-ckeepax@opensource.cirrus.com>
Date: Wed, 6 Mar 2024 16:10:04 +0000
From: Charles Keepax <ckeepax@...nsource.cirrus.com>
To: <broonie@...nel.org>
CC: <linux-spi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>
Subject: [PATCH] spi: cs42l43: Don't limit native CS to the first chip select

As the chip selects can be configured through ACPI/OF/swnode, and
the set_cs() callback will only be called when a native chip select
is being used, there is no reason for the driver to only support the
native chip select as the first chip select. Remove the check that
introduces this limitation.

Fixes: ef75e767167a ("spi: cs42l43: Add SPI controller support")
Signed-off-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
---
 drivers/spi/spi-cs42l43.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-cs42l43.c b/drivers/spi/spi-cs42l43.c
index d45d9e2e16116..27c995b657f2c 100644
--- a/drivers/spi/spi-cs42l43.c
+++ b/drivers/spi/spi-cs42l43.c
@@ -148,8 +148,7 @@ static void cs42l43_set_cs(struct spi_device *spi, bool is_high)
 {
 	struct cs42l43_spi *priv = spi_controller_get_devdata(spi->controller);
 
-	if (spi_get_chipselect(spi, 0) == 0)
-		regmap_write(priv->regmap, CS42L43_SPI_CONFIG2, !is_high);
+	regmap_write(priv->regmap, CS42L43_SPI_CONFIG2, !is_high);
 }
 
 static int cs42l43_prepare_message(struct spi_controller *ctlr, struct spi_message *msg)
-- 
2.39.2