ENGR00137894-1 Add imx pwm driver support

This patch adds imx pwm driver support as
a misc device.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/include/asm-arm/imx_pwm.h b/include/asm-arm/imx_pwm.h
new file mode 100644
index 0000000..2e4a52a
--- /dev/null
+++ b/include/asm-arm/imx_pwm.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __IMX_PWM_H__
+#define __IMX_PWM_H__
+
+struct pwm_device {
+	unsigned long mmio_base;
+	unsigned int pwm_id;
+	int pwmo_invert;
+	void (*enable_pwm_pad)(void);
+	void (*disable_pwm_pad)(void);
+	void (*enable_pwm_clk)(void);
+	void (*disable_pwm_clk)(void);
+};
+
+int imx_pwm_config(struct pwm_device pwm, int duty_ns, int period_ns);
+int imx_pwm_enable(struct pwm_device pwm);
+int imx_pwm_disable(struct pwm_device pwm);
+
+#endif