From d0b2f91bede3bd5e3d24dd6803e56eee959c1797 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Thu, 20 Oct 2016 00:10:27 -0300
Subject: Linux-libre 4.8.2-gnu
---
drivers/spi/spi-sun4i.c | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'drivers/spi/spi-sun4i.c')
diff --git a/drivers/spi/spi-sun4i.c b/drivers/spi/spi-sun4i.c
index cf007f3b8..4969dc106 100644
--- a/drivers/spi/spi-sun4i.c
+++ b/drivers/spi/spi-sun4i.c
@@ -167,6 +167,11 @@ static void sun4i_spi_set_cs(struct spi_device *spi, bool enable)
sun4i_spi_write(sspi, SUN4I_CTL_REG, reg);
}
+static size_t sun4i_spi_max_transfer_size(struct spi_device *spi)
+{
+ return SUN4I_FIFO_DEPTH - 1;
+}
+
static int sun4i_spi_transfer_one(struct spi_master *master,
struct spi_device *spi,
struct spi_transfer *tfr)
@@ -402,6 +407,8 @@ static int sun4i_spi_probe(struct platform_device *pdev)
}
sspi->master = master;
+ master->max_speed_hz = 100 * 1000 * 1000;
+ master->min_speed_hz = 3 * 1000;
master->set_cs = sun4i_spi_set_cs;
master->transfer_one = sun4i_spi_transfer_one;
master->num_chipselect = 4;
@@ -409,6 +416,7 @@ static int sun4i_spi_probe(struct platform_device *pdev)
master->bits_per_word_mask = SPI_BPW_MASK(8);
master->dev.of_node = pdev->dev.of_node;
master->auto_runtime_pm = true;
+ master->max_transfer_size = sun4i_spi_max_transfer_size;
sspi->hclk = devm_clk_get(&pdev->dev, "ahb");
if (IS_ERR(sspi->hclk)) {
--
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