linux-kernel - [PATCH] spi: sun4i: add support for GPIO chip select lines

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Message-ID: <20250410115303.5150-1-mans@mansr.com>
Date: Thu, 10 Apr 2025 12:53:03 +0100
From: Mans Rullgard <mans@...sr.com>
To: Mark Brown <broonie@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>
Cc: Pan Nan <pannan@...winnertech.com>,
	Maxime Ripard <mripard@...nel.org>,
	linux-spi@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] spi: sun4i: add support for GPIO chip select lines

Set use_gpio_descriptors to true so that GPIOs can be used for chip
select in accordance with the DT binding.

Signed-off-by: Mans Rullgard <mans@...sr.com>
---
 drivers/spi/spi-sun4i.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-sun4i.c b/drivers/spi/spi-sun4i.c
index 2ee6755b43f5..6645d218bcf3 100644
--- a/drivers/spi/spi-sun4i.c
+++ b/drivers/spi/spi-sun4i.c
@@ -462,6 +462,7 @@ static int sun4i_spi_probe(struct platform_device *pdev)
 	sspi->host = host;
 	host->max_speed_hz = 100 * 1000 * 1000;
 	host->min_speed_hz = 3 * 1000;
+	host->use_gpio_descriptors = true;
 	host->set_cs = sun4i_spi_set_cs;
 	host->transfer_one = sun4i_spi_transfer_one;
 	host->num_chipselect = 4;
-- 
2.49.0