46 lines
1.3 KiB
Diff
46 lines
1.3 KiB
Diff
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From 1f890e9fd62d10449d74d0b66bc9648afbe8a0bd Mon Sep 17 00:00:00 2001
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From: The-going <48602507+The-going@users.noreply.github.com>
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Date: Wed, 2 Feb 2022 11:35:27 +0300
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Subject: [PATCH 07/50] drv:spi:spi.c fix cs_gpio spi support
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---
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drivers/spi/spi.c | 14 ++++++++++++++
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1 file changed, 14 insertions(+)
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diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
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index a42b9e852..b89f83df5 100644
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--- a/drivers/spi/spi.c
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+++ b/drivers/spi/spi.c
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@@ -3467,6 +3467,7 @@ int spi_setup(struct spi_device *spi)
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{
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unsigned bad_bits, ugly_bits;
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int status;
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+ int ret;
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/*
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* check mode to prevent that any two of DUAL, QUAD and NO_MOSI/MISO
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@@ -3539,6 +3540,19 @@ int spi_setup(struct spi_device *spi)
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}
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}
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+ if (gpio_is_valid(spi->cs_gpio)) {
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+ dev_info(&spi->dev, "spi_setup / gpio_is_valid(%d) ... doing gpio_request ...\n", spi->cs_gpio);
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+ ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));
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+ if (ret) {
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+ dev_err(&spi->dev, "failed to request gpio\n");
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+ }
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+ else {
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+ gpio_direction_output(spi->cs_gpio,
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+ !(spi->mode & SPI_CS_HIGH));
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+ dev_info(&spi->dev, "spi_setup / gpio_direction_output(%d) done !\n", spi->cs_gpio);
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+ }
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+ }
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+
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if (spi->controller->auto_runtime_pm && spi->controller->set_cs) {
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status = pm_runtime_get_sync(spi->controller->dev.parent);
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if (status < 0) {
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--
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2.34.1
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