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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-13 23:12:38 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-13 23:12:38 +0300
commit91fa58840ae22cbf6d7c505ce6564c4c48f29af3 (patch)
tree02aa51d6ffac7e4b0871f0e67895a143b3a8447a /include/linux
parentac911b316336ad3d22b09e82698f0463347a5507 (diff)
parentd790eeb3db6aefac39ffa06e598eb31b7352ca4f (diff)
downloadlinux-91fa58840ae22cbf6d7c505ce6564c4c48f29af3.tar.xz
Merge branch 'i2c/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: "I2C has quite some patches for you this time. I hope it is the move to per-driver-maintainers which is now showing results. We will see. The big news is two new drivers (Nuvoton NPCM and Qualcomm CCI), larger refactoring of the Designware, Tegra, and PXA drivers, the Cadence driver supports being a slave now, and there is support to instanciate SPD eeproms for well-known cases (which will be user-visible because the i801 driver supports it), and some devm_platform_ioremap_resource() conversions which blow up the diffstat. Note that I applied the Nuvoton driver quite late, so some minor fixup patches arrived during the merge window. I chose to apply them right away because they were trivial" * 'i2c/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (109 commits) i2c: Drop stray comma in MODULE_AUTHOR statements i2c: npcm7xx: npcm_i2caddr[] can be static MAINTAINERS: npcm7xx: Add maintainer for Nuvoton NPCM BMC i2c: npcm7xx: Fix a couple of error codes in probe i2c: icy: Fix build with CONFIG_AMIGA_PCMCIA=n i2c: npcm7xx: Remove unnecessary parentheses i2c: npcm7xx: Add support for slave mode for Nuvoton i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver dt-bindings: i2c: npcm7xx: add NPCM I2C controller i2c: pxa: don't error out if there's no pinctrl i2c: add 'single-master' property to generic bindings i2c: designware: Add Baikal-T1 System I2C support i2c: designware: Move reg-space remapping into a dedicated function i2c: designware: Retrieve quirk flags as early as possible i2c: designware: Convert driver to using regmap API i2c: designware: Discard Cherry Trail model flag i2c: designware: Add Baytrail sem config DW I2C platform dependency i2c: designware: slave: Set DW I2C core module dependency i2c: designware: Use `-y` to build multi-object modules dt-bindings: i2c: dw: Add Baikal-T1 SoC I2C controller ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/i2c-smbus.h8
-rw-r--r--include/linux/i2c.h8
-rw-r--r--include/linux/platform_data/i2c-pxa.h48
3 files changed, 11 insertions, 53 deletions
diff --git a/include/linux/i2c-smbus.h b/include/linux/i2c-smbus.h
index 8c5459034f92..1e4e0de4ef8b 100644
--- a/include/linux/i2c-smbus.h
+++ b/include/linux/i2c-smbus.h
@@ -2,7 +2,7 @@
/*
* i2c-smbus.h - SMBus extensions to the I2C protocol
*
- * Copyright (C) 2010 Jean Delvare <jdelvare@suse.de>
+ * Copyright (C) 2010-2019 Jean Delvare <jdelvare@suse.de>
*/
#ifndef _LINUX_I2C_SMBUS_H
@@ -39,4 +39,10 @@ static inline int of_i2c_setup_smbus_alert(struct i2c_adapter *adap)
}
#endif
+#if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_DMI)
+void i2c_register_spd(struct i2c_adapter *adap);
+#else
+static inline void i2c_register_spd(struct i2c_adapter *adap) { }
+#endif
+
#endif /* _LINUX_I2C_SMBUS_H */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 49d29054e657..c10617bb980a 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -351,14 +351,14 @@ static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
return to_i2c_client(dev);
}
-static inline void *i2c_get_clientdata(const struct i2c_client *dev)
+static inline void *i2c_get_clientdata(const struct i2c_client *client)
{
- return dev_get_drvdata(&dev->dev);
+ return dev_get_drvdata(&client->dev);
}
-static inline void i2c_set_clientdata(struct i2c_client *dev, void *data)
+static inline void i2c_set_clientdata(struct i2c_client *client, void *data)
{
- dev_set_drvdata(&dev->dev, data);
+ dev_set_drvdata(&client->dev, data);
}
/* I2C slave support */
diff --git a/include/linux/platform_data/i2c-pxa.h b/include/linux/platform_data/i2c-pxa.h
index 6a9b28399b39..24953981bd9f 100644
--- a/include/linux/platform_data/i2c-pxa.h
+++ b/include/linux/platform_data/i2c-pxa.h
@@ -7,54 +7,6 @@
#ifndef _I2C_PXA_H_
#define _I2C_PXA_H_
-#if 0
-#define DEF_TIMEOUT 3
-#else
-/* need a longer timeout if we're dealing with the fact we may well be
- * looking at a multi-master environment
-*/
-#define DEF_TIMEOUT 32
-#endif
-
-#define BUS_ERROR (-EREMOTEIO)
-#define XFER_NAKED (-ECONNREFUSED)
-#define I2C_RETRY (-2000) /* an error has occurred retry transmit */
-
-/* ICR initialize bit values
-*
-* 15. FM 0 (100 Khz operation)
-* 14. UR 0 (No unit reset)
-* 13. SADIE 0 (Disables the unit from interrupting on slave addresses
-* matching its slave address)
-* 12. ALDIE 0 (Disables the unit from interrupt when it loses arbitration
-* in master mode)
-* 11. SSDIE 0 (Disables interrupts from a slave stop detected, in slave mode)
-* 10. BEIE 1 (Enable interrupts from detected bus errors, no ACK sent)
-* 9. IRFIE 1 (Enable interrupts from full buffer received)
-* 8. ITEIE 1 (Enables the I2C unit to interrupt when transmit buffer empty)
-* 7. GCD 1 (Disables i2c unit response to general call messages as a slave)
-* 6. IUE 0 (Disable unit until we change settings)
-* 5. SCLE 1 (Enables the i2c clock output for master mode (drives SCL)
-* 4. MA 0 (Only send stop with the ICR stop bit)
-* 3. TB 0 (We are not transmitting a byte initially)
-* 2. ACKNAK 0 (Send an ACK after the unit receives a byte)
-* 1. STOP 0 (Do not send a STOP)
-* 0. START 0 (Do not send a START)
-*
-*/
-#define I2C_ICR_INIT (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
-
-/* I2C status register init values
- *
- * 10. BED 1 (Clear bus error detected)
- * 9. SAD 1 (Clear slave address detected)
- * 7. IRF 1 (Clear IDBR Receive Full)
- * 6. ITE 1 (Clear IDBR Transmit Empty)
- * 5. ALD 1 (Clear Arbitration Loss Detected)
- * 4. SSD 1 (Clear Slave Stop Detected)
- */
-#define I2C_ISR_INIT 0x7FF /* status register init */
-
struct i2c_pxa_platform_data {
unsigned int class;
unsigned int use_pio :1;