Sudeep Holla 05e5e96324 i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended ... commit 331dcf421c upstream. If the i2c device is already runtime suspended, if qup_i2c_suspend is executed during suspend-to-idle or suspend-to-ram it will result in the following splat: WARNING: CPU: 3 PID: 1593 at drivers/clk/clk.c:476 clk_core_unprepare+0x80/0x90 Modules linked in: CPU: 3 PID: 1593 Comm: bash Tainted: G W 4.8.0-rc3 #14 Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) PC is at clk_core_unprepare+0x80/0x90 LR is at clk_unprepare+0x28/0x40 pc : [<ffff0000086eecf0>] lr : [<ffff0000086f0c58>] pstate: 60000145 Call trace: clk_core_unprepare+0x80/0x90 qup_i2c_disable_clocks+0x2c/0x68 qup_i2c_suspend+0x10/0x20 platform_pm_suspend+0x24/0x68 ... This patch fixes the issue by executing qup_i2c_pm_suspend_runtime conditionally in qup_i2c_suspend. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-09-30 10:18:38 +02:00
..
algos	i2c: algo-pca: fix typo in comment	2015-06-01 08:41:19 +09:00
busses	i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended	2016-09-30 10:18:38 +02:00
muxes	i2c: mux: reg: wrong condition checked for of_address_to_resource return value	2016-08-10 11:49:29 +02:00
i2c-boardinfo.c	i2c: remove FSF address	2014-11-07 18:35:33 +01:00
i2c-core.c	i2c: fix wakeup irq parsing	2015-11-20 16:19:08 +01:00
i2c-core.h	i2c: remove FSF address	2014-11-07 18:35:33 +01:00
i2c-dev.c	i2c-dev: Fix I2C_SLAVE ioctl comment	2015-10-23 23:26:44 +02:00
i2c-mux.c	i2c: add ACPI support for I2C mux ports	2015-10-25 15:49:46 +01:00
i2c-slave-eeprom.c	i2c: Drop owner assignment from i2c_driver	2015-08-10 08:37:35 +02:00
i2c-smbus.c	i2c: smbus: fix typo in commet	2015-06-01 08:41:26 +09:00
i2c-stub.c	i2c: remove FSF address	2014-11-07 18:35:33 +01:00
Kconfig	kconfig: use bool instead of boolean for type definition attributes	2015-01-07 13:08:04 +01:00
Makefile	i2c: slave-eeprom: add eeprom simulator driver	2014-12-11 22:25:54 +01:00