diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch')
-rw-r--r-- | target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch b/target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch deleted file mode 100644 index 0c03bc9f71..0000000000 --- a/target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch +++ /dev/null @@ -1,71 +0,0 @@ -From b9c998eb7735df8000cf48d77f9271823e8e73da Mon Sep 17 00:00:00 2001 -From: Ram Chandra Jangir <rjangi@codeaurora.org> -Date: Thu, 9 Mar 2017 09:39:05 +0100 -Subject: [PATCH 68/69] spi: add gpio cs support - -Signed-off-by: John Crispin <john@phrozen.org> ---- - drivers/spi/spi-qup.c | 38 ++++++++++++++++++++++++++++++++++++++ - 1 file changed, 38 insertions(+) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -24,6 +24,7 @@ - #include <linux/spi/spi.h> - #include <linux/dmaengine.h> - #include <linux/dma-mapping.h> -+#include <linux/gpio.h> - - #define QUP_CONFIG 0x0000 - #define QUP_STATE 0x0004 -@@ -1019,6 +1020,38 @@ err_tx: - return ret; - } - -+static void spi_qup_set_cs(struct spi_device *spi, bool val) -+{ -+ struct spi_qup *controller; -+ u32 spi_ioc; -+ u32 spi_ioc_orig; -+ -+ controller = spi_master_get_devdata(spi->master); -+ spi_ioc = readl_relaxed(controller->base + SPI_IO_CONTROL); -+ spi_ioc_orig = spi_ioc; -+ if (!val) -+ spi_ioc |= SPI_IO_C_FORCE_CS; -+ else -+ spi_ioc &= ~SPI_IO_C_FORCE_CS; -+ -+ if (spi_ioc != spi_ioc_orig) -+ writel_relaxed(spi_ioc, controller->base + SPI_IO_CONTROL); -+} -+ -+static int spi_qup_setup(struct spi_device *spi) -+{ -+ if (spi->cs_gpio >= 0) { -+ if (spi->mode & SPI_CS_HIGH) -+ gpio_set_value(spi->cs_gpio, 0); -+ else -+ gpio_set_value(spi->cs_gpio, 1); -+ -+ udelay(10); -+ } -+ -+ return 0; -+} -+ - static int spi_qup_probe(struct platform_device *pdev) - { - struct spi_master *master; -@@ -1115,6 +1148,11 @@ static int spi_qup_probe(struct platform - if (of_device_is_compatible(dev->of_node, "qcom,spi-qup-v1.1.1")) - controller->qup_v1 = 1; - -+ if (!controller->qup_v1) -+ master->set_cs = spi_qup_set_cs; -+ else -+ master->setup = spi_qup_setup; -+ - spin_lock_init(&controller->lock); - init_completion(&controller->done); - init_completion(&controller->dma_tx_done); |