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Author SHA1 Message Date
Dan Carpenter
53cf1dc480 clk: ep93xx: Fix off by one in ep93xx_div_recalc_rate() 
The psc->div[] array has psc->num_div elements.  These values come from
when we call clk_hw_register_div().  It's adc_divisors and
ARRAY_SIZE(adc_divisors)) and so on.  So this condition needs to be >=
instead of > to prevent an out of bounds read.

Fixes: 9645ccc7bd ("ep93xx: clock: convert in-place to COMMON_CLK")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Nikita Shubin <nikita.shubin@maquefel.me>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/1caf01ad4c0a8069535813c26c7f0b8ea011155e.camel@linaro.org
[arnd: the original patch was for arch/arm/mach-ep93xx/clock.c,
but the same bug ended up in arch/arm/mach-ep93xx/clock.c.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2024-09-12 14:33:12 +00:00
Arnd Bergmann
e2a7910590 clk: ep93xx: add module license 
When configured as a lodable module, this driver produces
a build time warning:

ERROR: modpost: missing MODULE_LICENSE() in drivers/clk/clk-ep93xx.o

All all three tags for license, author and description based
on the header.

Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2024-09-12 14:33:12 +00:00
Nikita Shubin
8a6b7e2b3a clk: ep93xx: add DT support for Cirrus EP93xx 
Rewrite EP93xx clock driver located in arch/arm/mach-ep93xx/clock.c
trying to do everything the device tree way:

- provide clock acces via of
- drop clk_hw_register_clkdev
- drop init code and use module_auxiliary_driver

Co-developed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2024-09-12 14:33:10 +00:00