Remove irq polling from Goodix driver. Use interrupt based
mechanism to process interrupts from touch controller.
Change-Id: I0a9037eac6e30a6319919043dd2ef1c226663af9
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
Signed-off-by: Sudhakar Manapati <smanap@codeaurora.org>
Add threaded irq support to Goodix touchscreen driver to reduce
the time spent with interrupts diabled to a bare minimum by
pushing the processing out into the kernel thread.
Change-Id: I3ade13181957d327ad9d0266b1999a4b0f2d8d1a
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
Add debugfs entry for suspend/resume that allow suspending/
resuming of Goodix CTP driver from userspace. Also change
the return type of goodix_ts_resume and goodix_ts_suspend
functions and set the status of gtp_is_suspended in the last
of above functions.
Change-Id: Ic2b1b2562b63ccecdf15bdc64ad7e45996d196d3
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
This change removes source files from the kernel tree that
were not being used during make.
Change-Id: I5132854367330a9b47f678409cbe6a45f2b5abb3
Signed-off-by: Sudhakar Manapati <smanap@codeaurora.org>
Fix errors and warnings found by checkpatch script in
goodix_tool.c and gt9xx_update.c. Correct debug messages
in goodix_update.c. Remove magic numbers for read-write
flags with macros in goodix_tool.c
Change-Id: I3a00fb46106f859128f0fa9b8c99b5d6ba24bc7b
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
Add support for VENUS PIL which facilitates the loading of venus
firmware, authentication and bringing it out of reset.
Change-Id: I53657d42b5cfe7dba63d8331127aca6551e553e1
Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org>
Commit 984d74a720 ("sysrq: rcu-ify __handle_sysrq") replaced
spin_lock_irqsave() calls with rcu_read_lock() calls in sysrq. Since
rcu_read_lock() does not disable preemption, faulthandler_disabled() in
__do_page_fault() in x86/fault.c returns false. When the code later calls
might_sleep() in the pagefault handler, we get the following warning:
BUG: sleeping function called from invalid context at ../arch/x86/mm/fault.c:1187
in_atomic(): 0, irqs_disabled(): 0, pid: 4706, name: bash
Preemption disabled at:[<ffffffff81484339>] printk+0x48/0x4a
To fix this, we release the RCU read lock before we crash.
Tested this patch on linux 3.18 by booting off one of our boards.
Fixes: 984d74a720 ("sysrq: rcu-ify __handle_sysrq")
Change-Id: I1827413e7e4fede197b3ebb6216239c07ae33a71
Signed-off-by: Ani Sinha <ani@arista.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Git-commit: 984cf355aeaa8f2eda3861b50d0e8d3e3f77e83b
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org>
