From 1f890e9fd62d10449d74d0b66bc9648afbe8a0bd Mon Sep 17 00:00:00 2001
From: The-going <48602507+The-going@users.noreply.github.com>
Date: Wed, 2 Feb 2022 11:35:27 +0300
Subject: [PATCH 07/50] drv:spi:spi.c fix cs_gpio spi support

---
 drivers/spi/spi.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index a42b9e852..b89f83df5 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3467,6 +3467,7 @@ int spi_setup(struct spi_device *spi)
 {
 	unsigned	bad_bits, ugly_bits;
 	int		status;
+	int		ret;
 
 	/*
 	 * check mode to prevent that any two of DUAL, QUAD and NO_MOSI/MISO
@@ -3539,6 +3540,19 @@ int spi_setup(struct spi_device *spi)
 		}
 	}
 
+	if (gpio_is_valid(spi->cs_gpio)) {
+		dev_info(&spi->dev, "spi_setup / gpio_is_valid(%d) ... doing gpio_request ...\n", spi->cs_gpio);
+		ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));
+		if (ret) {
+			dev_err(&spi->dev, "failed to request gpio\n");
+		}
+		else {
+			gpio_direction_output(spi->cs_gpio,
+				 !(spi->mode & SPI_CS_HIGH));
+			dev_info(&spi->dev, "spi_setup / gpio_direction_output(%d) done !\n", spi->cs_gpio);
+		}
+	}
+
 	if (spi->controller->auto_runtime_pm && spi->controller->set_cs) {
 		status = pm_runtime_get_sync(spi->controller->dev.parent);
 		if (status < 0) {
-- 
2.34.1