[PATCH 3/3] spi: clps711x: Use SPI-core "cs_gpios" property for storing GPIOs

[Alexander Shiyan]

Signed-off-by: Alexander Shiyan <shc_w...@mail.ru>
---
 drivers/spi/spi-clps711x.c | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c
index d9fa933..f973e97 100644
--- a/drivers/spi/spi-clps711x.c
+++ b/drivers/spi/spi-clps711x.c
@@ -33,17 +33,12 @@ struct spi_clps711x_data {
        u8                      *rx_buf;
        unsigned int            bpw;
        int                     len;
-
-       int                     chipselect[0];
 };
 
 static int spi_clps711x_setup(struct spi_device *spi)
 {
-       struct spi_clps711x_data *hw = spi_master_get_devdata(spi->master);
-
        /* We are expect that SPI-device is not selected */
-       gpio_direction_output(hw->chipselect[spi->chip_select],
-                             !(spi->mode & SPI_CS_HIGH));
+       gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
 
        return 0;
 }
@@ -84,7 +79,6 @@ static int spi_clps711x_transfer_one_message(struct 
spi_master *master,
        struct spi_clps711x_data *hw = spi_master_get_devdata(master);
        struct spi_device *spi = msg->spi;
        struct spi_transfer *xfer;
-       int cs = hw->chipselect[spi->chip_select];
 
        spi_clps711x_setup_mode(spi);
 
@@ -93,7 +87,7 @@ static int spi_clps711x_transfer_one_message(struct 
spi_master *master,
 
                spi_clps711x_setup_xfer(spi, xfer);
 
-               gpio_set_value(cs, !!(spi->mode & SPI_CS_HIGH));
+               gpio_set_value(spi->cs_gpio, !!(spi->mode & SPI_CS_HIGH));
 
                reinit_completion(&hw->done);
 
@@ -114,7 +108,7 @@ static int spi_clps711x_transfer_one_message(struct 
spi_master *master,
 
                if (xfer->cs_change ||
                    list_is_last(&xfer->transfer_list, &msg->transfers))
-                       gpio_set_value(cs, !(spi->mode & SPI_CS_HIGH));
+                       gpio_set_value(spi->cs_gpio, !(spi->mode & 
SPI_CS_HIGH));
 
                msg->actual_length += xfer->len;
        }
@@ -163,12 +157,15 @@ static int spi_clps711x_probe(struct platform_device 
*pdev)
                return -EINVAL;
        }
 
-       master = spi_alloc_master(&pdev->dev,
-                                 sizeof(struct spi_clps711x_data) +
-                                 sizeof(int) * pdata->num_chipselect);
-       if (!master) {
-               dev_err(&pdev->dev, "SPI allocating memory error\n");
+       master = spi_alloc_master(&pdev->dev, sizeof(*hw));
+       if (!master)
                return -ENOMEM;
+
+       master->cs_gpios = devm_kzalloc(&pdev->dev, sizeof(int) *
+                                       pdata->num_chipselect, GFP_KERNEL);
+       if (!master->cs_gpios) {
+               ret = -ENOMEM;
+               goto err_out;
        }
 
        master->bus_num = pdev->id;
@@ -181,13 +178,13 @@ static int spi_clps711x_probe(struct platform_device 
*pdev)
        hw = spi_master_get_devdata(master);
 
        for (i = 0; i < master->num_chipselect; i++) {
-               hw->chipselect[i] = pdata->chipselect[i];
-               if (!gpio_is_valid(hw->chipselect[i])) {
+               master->cs_gpios[i] = pdata->chipselect[i];
+               if (!gpio_is_valid(master->cs_gpios[i])) {
                        dev_err(&pdev->dev, "Invalid CS GPIO %i\n", i);
                        ret = -EINVAL;
                        goto err_out;
                }
-               if (devm_gpio_request(&pdev->dev, hw->chipselect[i], NULL)) {
+               if (devm_gpio_request(&pdev->dev, master->cs_gpios[i], NULL)) {
                        dev_err(&pdev->dev, "Can't get CS GPIO %i\n", i);
                        ret = -EINVAL;
                        goto err_out;
-- 
1.8.3.2

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