kernel/linux.git/drivers/hsi/controllers, branch v4.14.85

HSI: omap_ssi: Delete an error message for a failed memory allocation in ssi_add_controller()

2017-06-08T11:21:43+00:00

The script "checkpatch.pl" pointed information out like the following. WARNING: Possible unnecessary 'out of memory' message Thus remove such a statement here. Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf Signed-off-by: Markus Elfring Signed-off-by: Sebastian Reichel

HSI: omap_ssi: Fix a typo in a comment line

2017-06-08T11:21:43+00:00

Add a missing character in this description for a function call. Signed-off-by: Markus Elfring Signed-off-by: Sebastian Reichel

HSI: omap_ssi: Use devm_kcalloc() in ssi_add_controller()

2017-06-08T11:21:43+00:00

* A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "devm_kcalloc". This issue was detected by using the Coccinelle software. * Replace the specification of a data type by a pointer dereference to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring Signed-off-by: Sebastian Reichel

HSI: omap_ssi: drop pm_runtime_irq_safe

2016-06-27T22:40:08+00:00

pm_runtime_irq_safe increases the parents runtime usage counter effectively keeping the OMAP SoC from idling. Signed-off-by: Sebastian Reichel Acked-by: Tony Lindgren Tested-by: Pavel Machek

HSI: omap_ssi_port: use rpm autosuspend API

2016-06-27T22:40:03+00:00

Instead of immediately sending the SSI module to sleep, wait some time in case of new incoming or outgoing traffic. Signed-off-by: Sebastian Reichel Tested-by: Pavel Machek

HSI: omap_ssi: call msg->complete() from process context

2016-06-27T22:40:00+00:00

msg->complete() should always be called from process context once irq_safe runtime pm flag is no longer set for omap-ssi. Signed-off-by: Sebastian Reichel Tested-by: Pavel Machek

HSI: omap_ssi_port: ensure clocks are kept enabled during transfer

2016-06-27T22:39:56+00:00

ensure, that clocks remain enabled, when a transfer is started. Signed-off-by: Sebastian Reichel Tested-by: Pavel Machek

HSI: omap_ssi_port: replace pm_runtime_put_sync with non-sync variant

2016-06-27T22:39:43+00:00

There is no need to wait for hardware to really reach idle states, so just release runtime PM asynchronously. Signed-off-by: Sebastian Reichel Tested-by: Pavel Machek

HSI: omap_ssi_port: avoid calling runtime_pm_*_sync inside spinlock

2016-06-27T22:39:39+00:00

runtime_pm_*_sync can block when irq_safe flag is removed from omap-ssi driver, so it may not be called while a spinlock is held. Signed-off-by: Sebastian Reichel Tested-by: Pavel Machek

HSI: omap_ssi_port: avoid pm_runtime_get_sync in ssi_start_dma and ssi_start_pio

2016-06-27T22:39:36+00:00

These functions may be called from atomic context, so avoid synchronous runtime pm calls. Signed-off-by: Sebastian Reichel Tested-by: Pavel Machek