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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-14 09:21:46 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-14 09:21:46 +0200
commit9bca19a01d50143b736f0f59eb3ccc05b1106172 (patch)
tree3321118b4a6bd4c949634bbdbb3d2c03454ae33b /drivers/i2c/busses/i2c-tegra.c
parentMerge tag 'apparmor-pr-2018-06-13' of git://git.kernel.org/pub/scm/linux/kern... (diff)
parenti2c: qup: fix building without CONFIG_ACPI (diff)
downloadlinux-9bca19a01d50143b736f0f59eb3ccc05b1106172.tar.xz
linux-9bca19a01d50143b736f0f59eb3ccc05b1106172.zip
Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: - mainly feature additions to drivers (stm32f7, qup, xlp9xx, mlxcpld, ...) - conversion to use the i2c_8bit_addr_from_msg macro consistently - move includes to platform_data - core updates to allow the (still in review) I3C subsystem to connect - and the regular share of smaller driver updates * 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (68 commits) i2c: qup: fix building without CONFIG_ACPI i2c: tegra: Remove suspend-resume i2c: imx-lpi2c: Switch to SPDX identifier i2c: mxs: Switch to SPDX identifier i2c: busses: make use of i2c_8bit_addr_from_msg i2c: algos: make use of i2c_8bit_addr_from_msg i2c: rcar: document R8A77980 bindings i2c: qup: Add command-line parameter to override SCL frequency i2c: qup: Correct duty cycle for FM and FM+ i2c: qup: Add support for Fast Mode Plus i2c: qup: add probe path for Centriq ACPI devices i2c: robotfuzz-osif: drop pointless test i2c: robotfuzz-osif: remove pointless local variable i2c: rk3x: Don't print visible virtual mapping MMIO address i2c: opal: don't check number of messages in the driver i2c: ibm_iic: don't check number of messages in the driver i2c: imx: Switch to SPDX identifier i2c: mux: pca954x: merge calls to of_match_device and of_device_get_match_data i2c: mux: demux-pinctrl: use proper parent device for demux adapter i2c: mux: improve error message for failed symlink ...
Diffstat (limited to 'drivers/i2c/busses/i2c-tegra.c')
-rw-r--r--drivers/i2c/busses/i2c-tegra.c33
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 60292d243e24..5fccd1f1bca8 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -173,7 +173,6 @@ struct tegra_i2c_hw_feature {
* @msg_buf_remaining: size of unsent data in the message buffer
* @msg_read: identifies read transfers
* @bus_clk_rate: current i2c bus clock rate
- * @is_suspended: prevents i2c controller accesses after suspend is called
*/
struct tegra_i2c_dev {
struct device *dev;
@@ -194,7 +193,6 @@ struct tegra_i2c_dev {
int msg_read;
u32 bus_clk_rate;
u16 clk_divisor_non_hs_mode;
- bool is_suspended;
bool is_multimaster_mode;
spinlock_t xfer_lock;
};
@@ -734,9 +732,6 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
int i;
int ret = 0;
- if (i2c_dev->is_suspended)
- return -EBUSY;
-
ret = pm_runtime_get_sync(i2c_dev->dev);
if (ret < 0) {
dev_err(i2c_dev->dev, "runtime resume failed %d\n", ret);
@@ -1051,37 +1046,9 @@ static int tegra_i2c_remove(struct platform_device *pdev)
}
#ifdef CONFIG_PM_SLEEP
-static int tegra_i2c_suspend(struct device *dev)
-{
- struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev);
-
- i2c_lock_adapter(&i2c_dev->adapter);
- i2c_dev->is_suspended = true;
- i2c_unlock_adapter(&i2c_dev->adapter);
-
- return 0;
-}
-
-static int tegra_i2c_resume(struct device *dev)
-{
- struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev);
- int ret;
-
- i2c_lock_adapter(&i2c_dev->adapter);
-
- ret = tegra_i2c_init(i2c_dev);
- if (!ret)
- i2c_dev->is_suspended = false;
-
- i2c_unlock_adapter(&i2c_dev->adapter);
-
- return ret;
-}
-
static const struct dev_pm_ops tegra_i2c_pm = {
SET_RUNTIME_PM_OPS(tegra_i2c_runtime_suspend, tegra_i2c_runtime_resume,
NULL)
- SET_SYSTEM_SLEEP_PM_OPS(tegra_i2c_suspend, tegra_i2c_resume)
};
#define TEGRA_I2C_PM (&tegra_i2c_pm)
#else