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Diffstat (limited to 'drivers/mmc/core/pwrseq.h')
-rw-r--r--drivers/mmc/core/pwrseq.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/mmc/core/pwrseq.h b/drivers/mmc/core/pwrseq.h
new file mode 100644
index 000000000..819386f4e
--- /dev/null
+++ b/drivers/mmc/core/pwrseq.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2014 Linaro Ltd
+ *
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef _MMC_CORE_PWRSEQ_H
+#define _MMC_CORE_PWRSEQ_H
+
+#include <linux/types.h>
+
+struct mmc_host;
+struct device;
+struct module;
+
+struct mmc_pwrseq_ops {
+ void (*pre_power_on)(struct mmc_host *host);
+ void (*post_power_on)(struct mmc_host *host);
+ void (*power_off)(struct mmc_host *host);
+ void (*reset)(struct mmc_host *host);
+};
+
+struct mmc_pwrseq {
+ const struct mmc_pwrseq_ops *ops;
+ struct device *dev;
+ struct list_head pwrseq_node;
+ struct module *owner;
+};
+
+#ifdef CONFIG_OF
+
+int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq);
+void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq);
+
+int mmc_pwrseq_alloc(struct mmc_host *host);
+void mmc_pwrseq_pre_power_on(struct mmc_host *host);
+void mmc_pwrseq_post_power_on(struct mmc_host *host);
+void mmc_pwrseq_power_off(struct mmc_host *host);
+void mmc_pwrseq_reset(struct mmc_host *host);
+void mmc_pwrseq_free(struct mmc_host *host);
+
+#else
+
+static inline int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq)
+{
+ return -ENOSYS;
+}
+static inline void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq) {}
+static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }
+static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}
+static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}
+static inline void mmc_pwrseq_power_off(struct mmc_host *host) {}
+static inline void mmc_pwrseq_reset(struct mmc_host *host) {}
+static inline void mmc_pwrseq_free(struct mmc_host *host) {}
+
+#endif
+
+#endif