1 files changed, 37 insertions, 18 deletions

diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index a50ee9b644ae..a69ccb75f7d7 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -631,14 +631,47 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 static int spi_sirfsoc_setup(struct spi_device *spi)
 {
 	struct sirfsoc_spi *sspi;
+	int ret = 0;
 
 	sspi = spi_master_get_devdata(spi->master);
 
 	if (spi->cs_gpio == -ENOENT)
 		sspi->hw_cs = true;
-	else
+	else {
 		sspi->hw_cs = false;
-	return spi_sirfsoc_setup_transfer(spi, NULL);
+		if (!spi_get_ctldata(spi)) {
+			void *cs = kmalloc(sizeof(int), GFP_KERNEL);
+			if (!cs) {
+				ret = -ENOMEM;
+				goto exit;
+			}
+			ret = gpio_is_valid(spi->cs_gpio);
+			if (!ret) {
+				dev_err(&spi->dev, "no valid gpio\n");
+				ret = -ENOENT;
+				goto exit;
+			}
+			ret = gpio_request(spi->cs_gpio, DRIVER_NAME);
+			if (ret) {
+				dev_err(&spi->dev, "failed to request gpio\n");
+				goto exit;
+			}
+			spi_set_ctldata(spi, cs);
+		}
+	}
+	writel(readl(sspi->base + SIRFSOC_SPI_CTRL) | SIRFSOC_SPI_CS_IO_MODE,
+			sspi->base + SIRFSOC_SPI_CTRL);
+	spi_sirfsoc_chipselect(spi, BITBANG_CS_INACTIVE);
+exit:
+	return ret;
+}
+
+static void spi_sirfsoc_cleanup(struct spi_device *spi)
+{
+	if (spi_get_ctldata(spi)) {
+		gpio_free(spi->cs_gpio);
+		kfree(spi_get_ctldata(spi));
+	}
 }
 
 static int spi_sirfsoc_probe(struct platform_device *pdev)
@@ -647,7 +680,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
 	struct spi_master *master;
 	struct resource *mem_res;
 	int irq;
-	int i, ret;
+	int ret;
 
 	ret = device_reset(&pdev->dev);
 	if (ret) {
@@ -685,6 +718,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
 	sspi->bitbang.setup_transfer = spi_sirfsoc_setup_transfer;
 	sspi->bitbang.txrx_bufs = spi_sirfsoc_transfer;
 	sspi->bitbang.master->setup = spi_sirfsoc_setup;
+	sspi->bitbang.master->cleanup = spi_sirfsoc_cleanup;
 	master->bus_num = pdev->id;
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST | SPI_CS_HIGH;
 	master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(12) |
@@ -733,21 +767,6 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
 	ret = spi_bitbang_start(&sspi->bitbang);
 	if (ret)
 		goto free_dummypage;
-	for (i = 0; master->cs_gpios && i < master->num_chipselect; i++) {
-		if (master->cs_gpios[i] == -ENOENT)
-			continue;
-		if (!gpio_is_valid(master->cs_gpios[i])) {
-			dev_err(&pdev->dev, "no valid gpio\n");
-			ret = -EINVAL;
-			goto free_dummypage;
-		}
-		ret = devm_gpio_request(&pdev->dev,
-				master->cs_gpios[i], DRIVER_NAME);
-		if (ret) {
-			dev_err(&pdev->dev, "failed to request gpio\n");
-			goto free_dummypage;
-		}
-	}
 	dev_info(&pdev->dev, "registerred, bus number = %d\n", master->bus_num);
 
 	return 0;