kernel/linux.git/drivers/fsi, branch v6.6.132

fsi: i2cr: Switch to use struct i2c_driver's .probe()

2023-08-22T13:51:33+00:00

struct i2c_driver::probe_new is about to go away. Switch the driver to use the probe callback with the same prototype. Signed-off-by: Uwe Kleine-König Reviewed-by: Eddie James Reviewed-by: Joel Stanley Link: https://lore.kernel.org/r/20230816171944.123705-1-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman

fsi: fix some spelling mistakes in comment

2023-08-11T04:02:15+00:00

Fix typos in comment. Signed-off-by: Yu Zhe Reviewed-by: Andrew Jeffery Link: https://lore.kernel.org/r/20230203083721.23455-1-yuzhe@nfschina.com Signed-off-by: Joel Stanley

fsi: master-ast-cf: Add MODULE_FIRMWARE macro

2023-08-11T04:02:14+00:00

The module loads firmware so add a MODULE_FIRMWARE macro to provide that information via modinfo. Fixes: 6a794a27daca ("fsi: master-ast-cf: Add new FSI master using Aspeed ColdFire") Cc: stable@vger.kernel.org # 4.19+ Signed-off-by: Juerg Haefliger Link: https://lore.kernel.org/r/20230628095039.26218-1-juerg.haefliger@canonical.com Signed-off-by: Joel Stanley

fsi: Add I2C Responder SCOM driver

2023-08-11T04:02:14+00:00

The I2CR has the capability to directly perform SCOM operations, circumventing the need to drive the FSI2PIB engine. Add a new driver to perform SCOM operations through the I2CR. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20230612195657.245125-15-eajames@linux.ibm.com Signed-off-by: Joel Stanley

fsi: Add IBM I2C Responder virtual FSI master

2023-08-11T04:02:14+00:00

The I2C Responder (I2CR) is an I2C device that translates I2C commands to CFAM or SCOM operations, effectively implementing an FSI master and bus. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20230612195657.245125-14-eajames@linux.ibm.com Signed-off-by: Joel Stanley

fsi: Lock mutex for master device registration

2023-08-11T04:02:14+00:00

Because master device registration may cause hub master scans, or user scans may begin before device registration has ended, so the master scan lock must be held while registering the device. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20230809180814.151984-3-eajames@linux.ibm.com Signed-off-by: Joel Stanley

fsi: Improve master indexing

2023-08-11T04:01:57+00:00

Master indexing is problematic if a hub is rescanned while the root master is being rescanned. Always allocate an index for the FSI master, and set the device name if it hasn't already been set. Move the call to ida_free to the bottom of master unregistration and set the number of links to 0 in case another call to scan comes in before the device is removed. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20230809180814.151984-2-eajames@linux.ibm.com Signed-off-by: Joel Stanley

fsi: core: Switch to ida_alloc/free

2023-08-09T06:13:28+00:00

ida_simple_get/remove are deprecated, so switch to ida_alloc/free. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20230612195657.245125-11-eajames@linux.ibm.com Signed-off-by: Joel Stanley

fsi: core: Fix legacy minor numbering

2023-08-09T06:13:28+00:00

The legacy minor numbering shifts the chip id too much, resulting in ids that overlap with regular ids. Since there are only 2 bits for 4 types, only shift the chip id by 2 to fit the legacy ids in their reserved space. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20230612195657.245125-10-eajames@linux.ibm.com Signed-off-by: Joel Stanley

fsi: core: Add trace events for scan and unregister

2023-08-09T06:13:28+00:00

Add more trace events for the scanning and unregistration functions for debug purposes. Signed-off-by: Eddie James Reviewed-by: Joel Stanley Link: https://lore.kernel.org/r/20230612195657.245125-9-eajames@linux.ibm.com Signed-off-by: Joel Stanley