spi: clps711x: Migrate to the new clk subsystem

Currently clps711x arch have a fully functional CLK driver.
This patch migrates clps711x-spi driver to use the new CLK subsystem.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c
index ce538da..181cf22 100644 (file)
--- a/drivers/spi/spi-clps711x.c
+++ b/drivers/spi/spi-clps711x.c
@@ -30,7 +30,6 @@
 struct spi_clps711x_data {
        void __iomem            *syncio;
        struct regmap           *syscon;
-       struct regmap           *syscon1;
        struct clk              *spi_clk;
 
        u8                      *tx_buf;
@@ -47,27 +46,6 @@ static int spi_clps711x_setup(struct spi_device *spi)
        return 0;
 }
 
-static void spi_clps711x_setup_xfer(struct spi_device *spi,
-                                   struct spi_transfer *xfer)
-{
-       struct spi_master *master = spi->master;
-       struct spi_clps711x_data *hw = spi_master_get_devdata(master);
-
-       /* Setup SPI frequency divider */
-       if (xfer->speed_hz >= master->max_speed_hz)
-               regmap_update_bits(hw->syscon1, SYSCON_OFFSET,
-                                  SYSCON1_ADCKSEL_MASK, SYSCON1_ADCKSEL(3));
-       else if (xfer->speed_hz >= (master->max_speed_hz / 2))
-               regmap_update_bits(hw->syscon1, SYSCON_OFFSET,
-                                  SYSCON1_ADCKSEL_MASK, SYSCON1_ADCKSEL(2));
-       else if (xfer->speed_hz >= (master->max_speed_hz / 8))
-               regmap_update_bits(hw->syscon1, SYSCON_OFFSET,
-                                  SYSCON1_ADCKSEL_MASK, SYSCON1_ADCKSEL(1));
-       else
-               regmap_update_bits(hw->syscon1, SYSCON_OFFSET,
-                                  SYSCON1_ADCKSEL_MASK, SYSCON1_ADCKSEL(0));
-}
-
 static int spi_clps711x_prepare_message(struct spi_master *master,
                                        struct spi_message *msg)
 {
@@ -87,7 +65,7 @@ static int spi_clps711x_transfer_one(struct spi_master *master,
        struct spi_clps711x_data *hw = spi_master_get_devdata(master);
        u8 data;
 
-       spi_clps711x_setup_xfer(spi, xfer);
+       clk_set_rate(hw->spi_clk, xfer->speed_hz ? : spi->max_speed_hz);
 
        hw->len = xfer->len;
        hw->bpw = xfer->bits_per_word;
@@ -176,13 +154,11 @@ static int spi_clps711x_probe(struct platform_device *pdev)
                }
        }
 
-       hw->spi_clk = devm_clk_get(&pdev->dev, "spi");
+       hw->spi_clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(hw->spi_clk)) {
-               dev_err(&pdev->dev, "Can't get clocks\n");
                ret = PTR_ERR(hw->spi_clk);
                goto err_out;
        }
-       master->max_speed_hz = clk_get_rate(hw->spi_clk);
 
        hw->syscon = syscon_regmap_lookup_by_pdevname("syscon.3");
        if (IS_ERR(hw->syscon)) {
@@ -190,12 +166,6 @@ static int spi_clps711x_probe(struct platform_device *pdev)
                goto err_out;
        }
 
-       hw->syscon1 = syscon_regmap_lookup_by_pdevname("syscon.1");
-       if (IS_ERR(hw->syscon1)) {
-               ret = PTR_ERR(hw->syscon1);
-               goto err_out;
-       }
-
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        hw->syncio = devm_ioremap_resource(&pdev->dev, res);
        if (IS_ERR(hw->syncio)) {