Merge branch 'samsung/exynos-multiplatform' into next/multiplatform

These patches get us closer to adding multiplatform support on
the Exynos platform, they are part of a longer series of
patches.  This would get all the simple stuff out of the
way, and I don't think there is a big risk of introducing
regressions with these.

A lot of the other patches have already been merged into
subsystem trees. After this series in in arm-soc, what is
left comes down to

* The ASoC conversion to dmaengine won't make it unless someone
  who knows that code better steps up to do it right away. This
  means that we won't have audio in a 3.10 multiplatform kernel
  on Exynos, but it will still work for users that don't enable
  multiplatform.

* The irqchip (combiner), clk and clksource patches are all based
  on top   of other changesets we pulled in from your trees, so I
  would not make them part of the next/multiplatform branch. We can
  apply them on top of the next/drivers branch once they are
  tested successfully.

* A trivial patch is needed in the end to actually make
  CONFIG_ARCH_EXYNOS visible in multiplatform configurations.
  We will do that as a separate patch once everything else is
  there.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 56 insertions, 0 deletions

diff --git a/include/linux/platform_data/mmc-sdhci-s3c.h b/include/linux/platform_data/mmc-sdhci-s3c.h
new file mode 100644
index 000000000000..249f02387a35
--- /dev/null
+++ b/include/linux/platform_data/mmc-sdhci-s3c.h
@@ -0,0 +1,56 @@
+#ifndef __PLATFORM_DATA_SDHCI_S3C_H
+#define __PLATFORM_DATA_SDHCI_S3C_H
+
+struct platform_device;
+
+enum cd_types {
+        S3C_SDHCI_CD_INTERNAL,  /* use mmc internal CD line */
+        S3C_SDHCI_CD_EXTERNAL,  /* use external callback */
+        S3C_SDHCI_CD_GPIO,      /* use external gpio pin for CD line */
+        S3C_SDHCI_CD_NONE,      /* no CD line, use polling to detect card */
+        S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */
+};
+
+/**
+ * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
+ * @max_width: The maximum number of data bits supported.
+ * @host_caps: Standard MMC host capabilities bit field.
+ * @host_caps2: The second standard MMC host capabilities bit field.
+ * @cd_type: Type of Card Detection method (see cd_types enum above)
+ * @ext_cd_init: Initialize external card detect subsystem. Called on
+ *               sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
+ *               notify_func argument is a callback to the sdhci-s3c driver
+ *               that triggers the card detection event. Callback arguments:
+ *               dev is pointer to platform device of the host controller,
+ *               state is new state of the card (0 - removed, 1 - inserted).
+ * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on
+ *               sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL.
+ *               notify_func argument is the same callback as for ext_cd_init.
+ * @ext_cd_gpio: gpio pin used for external CD line, valid only if
+ *               cd_type == S3C_SDHCI_CD_GPIO
+ * @ext_cd_gpio_invert: invert values for external CD gpio line
+ * @cfg_gpio: Configure the GPIO for a specific card bit-width
+ *
+ * Initialisation data specific to either the machine or the platform
+ * for the device driver to use or call-back when configuring gpio or
+ * card speed information.
+*/
+struct s3c_sdhci_platdata {
+        unsigned int    max_width;
+        unsigned int    host_caps;
+        unsigned int    host_caps2;
+        unsigned int    pm_caps;
+        enum cd_types   cd_type;
+
+        int             ext_cd_gpio;
+        bool            ext_cd_gpio_invert;
+        int     (*ext_cd_init)(void (*notify_func)(struct platform_device *,
+                                                   int state));
+        int     (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *,
+                                                      int state));
+
+        void    (*cfg_gpio)(struct platform_device *dev, int width);
+};
+
+
+#endif /* __PLATFORM_DATA_SDHCI_S3C_H */