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In Linux the ops in struct clk_ops take a struct clk_hw * argument
instead of a struct clk * argument as in barebox. With this taking
new clk drivers from Linux requires a lot of mechanical conversions.
Instead of doing this over and over again swallow the pill once and
convert the existing barebox code over to clk_hw.
The implementation is a little different from Linux. In Linux struct clk
is only known to the core clock code. In barebox struct clk is
publically known and it is embedded into struct clk_hw. This allows
us to still use struct clk members in the clock drivers which we
currently still need, because otherwise this patch would be even
bigger.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.barebox.org/20210602095507.24609-5-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Linux has a clk_register() function with a different semantics than
barebox. Rename this function to bclk_register() so that we later
can introduce a clk_register() function with the same semantics as
Linux.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20210602095507.24609-4-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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<asm-generic/div64.h> isn't meant for direct usage as <asm/div64.h> may
override this on a per-architecture basis. We don't do that currently,
but in the future we might. Include the <linux/math64.h> instead.
No functional change.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Use do_div() to avoid undefined references to `__aeabi_uldivmod'
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Some of these are a product of source sync with Linux, the other were
done with macro assistance by searching for /later/, deleting license text,
adding appropriate SPDX-License-Identifier and manual post-review.
Devices without a license indicated where assumed GPL-2.0-only according
with the project's license.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This is based on Lucas' patch sent as "[PATCH v2 4/4] clk: imx: add
clock driver for i.MX8MQ CCM" to the mailing list.
It will likely need some rework before it is finally merged, so apply
the reworks here before merging into barebox.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[andrew.smirnov@gmail.com: Fix pll type for IMX8MQ_VIDEO2_PLL1]
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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