kernel/drivers/hsi/controllers, branch linux-6.9.y

HSI: omap_ssi: Remove usage of the deprecated ida_simple_xx() API

2023-11-13T20:48:46Z

ida_alloc() and ida_free() should be preferred to the deprecated ida_simple_get() and ida_simple_remove(). This is less verbose. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/d72106fc9de28ef8db2ed653febe366d141362a4.1698831563.git.christophe.jaillet@wanadoo.fr Signed-off-by: Sebastian Reichel

hsi: omap_ssi: Explicitly include correct DT includes

2023-07-31T21:17:57Z

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230714174554.4056851-1-robh@kernel.org Signed-off-by: Sebastian Reichel

HSI: omap_ssi_port: Drop error checking for debugfs_create_dir

2023-05-27T16:50:27Z

This patch fixes the error checking in omap_ssi_port.c. The DebugFS kernel API is developed in a way that the caller can safely ignore the errors that occur during the creation of DebugFS nodes. Signed-off-by: Osama Muhammad Signed-off-by: Sebastian Reichel

HSI: fix ssi_waketest() declaration

2023-05-20T17:20:30Z

The ssi_waketest() function definition causes a 'make W=1' warning because the declaration is hidden away in ssi_protocol.c: drivers/hsi/controllers/omap_ssi_core.c:147:6: error: no previous prototype for 'ssi_waketest' Move it into a header file instead. Fixes: dc7bf5d71868 ("HSI: Introduce driver for SSI Protocol") Signed-off-by: Arnd Bergmann Reviewed-by: Kees Cook Signed-off-by: Sebastian Reichel

HSI: omap_ssi_core: Fix error handling in ssi_init()

2022-11-25T00:04:21Z

The ssi_init() returns the platform_driver_register() directly without checking its return value, if platform_driver_register() failed, the ssi_pdriver is not unregistered. Fix by unregister ssi_pdriver when the last platform_driver_register() failed. Fixes: 0fae198988b8 ("HSI: omap_ssi: built omap_ssi and omap_ssi_port into one module") Signed-off-by: Yuan Can Signed-off-by: Sebastian Reichel

HSI: omap_ssi_core: fix possible memory leak in ssi_probe()

2022-11-17T21:49:39Z

If ssi_add_controller() returns error, it should call hsi_put_controller() to give up the reference that was set in hsi_alloc_controller(), so that it can call hsi_controller_release() to free controller and ports that allocated in hsi_alloc_controller(). Fixes: b209e047bc74 ("HSI: Introduce OMAP SSI driver") Signed-off-by: Yang Yingliang Signed-off-by: Sebastian Reichel

HSI: omap_ssi_core: fix unbalanced pm_runtime_disable()

2022-11-14T20:45:13Z

In error label 'out1' path in ssi_probe(), the pm_runtime_enable() has not been called yet, so pm_runtime_disable() is not needed. Fixes: b209e047bc74 ("HSI: Introduce OMAP SSI driver") Signed-off-by: Yang Yingliang Signed-off-by: Sebastian Reichel

HSI: omap_ssi_port: Fix dma_map_sg error check

2022-08-29T16:08:48Z

dma_map_sg return 0 on error, in case of error return -EIO to caller. Cc: Sebastian Reichel Cc: linux-kernel@vger.kernel.org (open list) Fixes: b209e047bc74 ("HSI: Introduce OMAP SSI driver") Signed-off-by: Jack Wang Signed-off-by: Sebastian Reichel

HSI: omap_ssi: Fix refcount leak in ssi_probe

2022-08-29T16:08:48Z

When returning or breaking early from a for_each_available_child_of_node() loop, we need to explicitly call of_node_put() on the child node to possibly release the node. Fixes: b209e047bc74 ("HSI: Introduce OMAP SSI driver") Signed-off-by: Miaoqian Lin Signed-off-by: Sebastian Reichel

HSI: Fix PM usage counter unbalance in ssi_hw_init

2020-12-29T22:57:06Z

pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. We fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: b209e047bc743 ("HSI: Introduce OMAP SSI driver") Signed-off-by: Zhang Qilong Signed-off-by: Sebastian Reichel