summaryrefslogtreecommitdiff
path: root/include/linux/platform_data/i2c-omap.h
diff options
context:
space:
mode:
authorJiri Kosina <jkosina@suse.cz>2018-08-20 18:05:17 +0200
committerJiri Kosina <jkosina@suse.cz>2018-08-20 18:05:17 +0200
commit415d2b3392d7a80903e0f97f051201aa02bf20e9 (patch)
tree47492d2386a0e7f00ef645313cb44ae4960b7e7e /include/linux/platform_data/i2c-omap.h
parent4f65245f2d178b9cba48350620d76faa4a098841 (diff)
parentb8e759b8f6dab1c473c30ac12709095d0b81078e (diff)
Merge branch 'for-4.19/cougar' into for-linus
New device support for hid-cougar
Diffstat (limited to 'include/linux/platform_data/i2c-omap.h')
-rw-r--r--include/linux/platform_data/i2c-omap.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/platform_data/i2c-omap.h b/include/linux/platform_data/i2c-omap.h
new file mode 100644
index 000000000000..3444265ee8ee
--- /dev/null
+++ b/include/linux/platform_data/i2c-omap.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __I2C_OMAP_H__
+#define __I2C_OMAP_H__
+
+#include <linux/platform_device.h>
+
+/*
+ * Version 2 of the I2C peripheral unit has a different register
+ * layout and extra registers. The ID register in the V2 peripheral
+ * unit on the OMAP4430 reports the same ID as the V1 peripheral
+ * unit on the OMAP3530, so we must inform the driver which IP
+ * version we know it is running on from platform / cpu-specific
+ * code using these constants in the hwmod class definition.
+ */
+
+#define OMAP_I2C_IP_VERSION_1 1
+#define OMAP_I2C_IP_VERSION_2 2
+
+/* struct omap_i2c_bus_platform_data .flags meanings */
+
+#define OMAP_I2C_FLAG_NO_FIFO BIT(0)
+#define OMAP_I2C_FLAG_SIMPLE_CLOCK BIT(1)
+#define OMAP_I2C_FLAG_16BIT_DATA_REG BIT(2)
+#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5)
+#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK BIT(6)
+/* how the CPU address bus must be translated for I2C unit access */
+#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0
+#define OMAP_I2C_FLAG_BUS_SHIFT_1 BIT(7)
+#define OMAP_I2C_FLAG_BUS_SHIFT_2 BIT(8)
+#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7
+
+struct omap_i2c_bus_platform_data {
+ u32 clkrate;
+ u32 rev;
+ u32 flags;
+ void (*set_mpu_wkup_lat)(struct device *dev, long set);
+};
+
+#endif