clkdev: Update clkdev id usage to allow for longer names
authorMichael J. Ruhl <michael.j.ruhl@intel.com>
Fri, 23 Feb 2024 20:25:56 +0000 (15:25 -0500)
committerStephen Boyd <sboyd@kernel.org>
Wed, 28 Feb 2024 22:14:44 +0000 (14:14 -0800)
commit99f4570cfba1e60daafde737cb7e395006d719e6
treec78f1ad81ca2fb3c6f4437608dbaada2908aa665
parent6613476e225e090cc9aad49be7fa504e290dd33d
clkdev: Update clkdev id usage to allow for longer names

clkdev DEV ID information is limited to an array of 20 bytes
(MAX_DEV_ID).  It is possible that the ID could be longer than
that.  If so, the lookup will fail because the "real ID" will
not match the copied value.

For instance, generating a device name for the I2C Designware
module using the PCI ID can result in a name of:

i2c_designware.39424

clkdev_create() will store:

i2c_designware.3942

The stored name is one off and will not match correctly during probe.

Increase the size of the ID to allow for a longer name.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://lore.kernel.org/r/20240223202556.2194021-1-michael.j.ruhl@intel.com
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
drivers/clk/clkdev.c