mmc: mvsdio: delete platform data code path

There are no in-kernel users of the MVSDIO platform data method
(instantiating from a board file) so just delete this code and
make this a DT-only driver. We depend on OF and check that we have
an OF node in probe().

Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

2 files changed, 15 insertions, 49 deletions

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 1dee533634c9..1526b8a10b09 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -455,6 +455,7 @@ config MMC_TIFM_SD
 config MMC_MVSDIO
         tristate "Marvell MMC/SD/SDIO host driver"
         depends on PLAT_ORION
+        depends on OF
         ---help---
           This selects the Marvell SDIO host driver.
           SDIO may currently be found on the Kirkwood 88F6281 and 88F6192
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 18c70380ea93..42296e55b9de 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -20,8 +20,6 @@
 #include <linux/scatterlist.h>
 #include <linux/irq.h>
 #include <linux/clk.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
 #include <linux/of_irq.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/slot-gpio.h>
@@ -36,12 +34,6 @@
 static int maxfreq;
 static int nodma;
 
-struct mvsdio_platform_data {
-        unsigned int clock;
-        int gpio_card_detect;
-        int gpio_write_protect;
-};
-
 struct mvsd_host {
         void __iomem *base;
         struct mmc_request *mrq;
@@ -709,6 +701,10 @@ static int mvsd_probe(struct platform_device *pdev)
         struct resource *r;
         int ret, irq;
 
+        if (!np) {
+                dev_err(&pdev->dev, "no DT node\n");
+                return -ENODEV;
+        }
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         irq = platform_get_irq(pdev, 0);
         if (!r || irq < 0)
@@ -732,8 +728,12 @@ static int mvsd_probe(struct platform_device *pdev)
          * fixed rate clock).
          */
         host->clk = devm_clk_get(&pdev->dev, NULL);
-        if (!IS_ERR(host->clk))
-                clk_prepare_enable(host->clk);
+        if (IS_ERR(host->clk)) {
+                dev_err(&pdev->dev, "no clock associated\n");
+                ret = -EINVAL;
+                goto out;
+        }
+        clk_prepare_enable(host->clk);
 
         mmc->ops = &mvsd_ops;
 
@@ -749,45 +749,10 @@ static int mvsd_probe(struct platform_device *pdev)
         mmc->max_seg_size = mmc->max_blk_size * mmc->max_blk_count;
         mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
 
-        if (np) {
-                if (IS_ERR(host->clk)) {
-                        dev_err(&pdev->dev, "DT platforms must have a clock associated\n");
-                        ret = -EINVAL;
-                        goto out;
-                }
-
-                host->base_clock = clk_get_rate(host->clk) / 2;
-                ret = mmc_of_parse(mmc);
-                if (ret < 0)
-                        goto out;
-        } else {
-                const struct mvsdio_platform_data *mvsd_data;
-
-                mvsd_data = pdev->dev.platform_data;
-                if (!mvsd_data) {
-                        ret = -ENXIO;
-                        goto out;
-                }
-                mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ |
-                            MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
-                host->base_clock = mvsd_data->clock / 2;
-                /* GPIO 0 regarded as invalid for backward compatibility */
-                if (mvsd_data->gpio_card_detect &&
-                    gpio_is_valid(mvsd_data->gpio_card_detect)) {
-                        ret = mmc_gpio_request_cd(mmc,
-                                                  mvsd_data->gpio_card_detect,
-                                                  0);
-                        if (ret)
-                                goto out;
-                } else {
-                        mmc->caps |= MMC_CAP_NEEDS_POLL;
-                }
-
-                if (mvsd_data->gpio_write_protect &&
-                    gpio_is_valid(mvsd_data->gpio_write_protect))
-                        mmc_gpio_request_ro(mmc, mvsd_data->gpio_write_protect);
-        }
-
+        host->base_clock = clk_get_rate(host->clk) / 2;
+        ret = mmc_of_parse(mmc);
+        if (ret < 0)
+                goto out;
         if (maxfreq)
                 mmc->f_max = maxfreq;