clk: bm1880: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230705065313.67043-4-frank.li@vivo.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

clk: Explicitly include correct DT includes

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.

Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> # samsung
Acked-by: Heiko Stuebner <heiko@sntech.de> #rockchip
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # versaclock5
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230718143156.1066339-1-robh@kernel.org
Acked-by: Abel Vesa <abel.vesa@linaro.org> #imx
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

clk: bm1880: remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: linux-modules@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-clk@vger.kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>

clk: bm1880: remove kfrees on static allocations

bm1880_clk_unregister_pll & bm1880_clk_unregister_div both try to
free statically allocated variables, so remove those kfrees.

For example, if we take L703 kfree(div_hw):
- div_hw is a bm1880_div_hw_clock pointer
- in bm1880_clk_register_plls this is pointed to an element of arg1:
struct bm1880_div_hw_clock *clks
- in the probe, where bm1880_clk_register_plls is called arg1 is
bm1880_div_clks, defined on L371:
static struct bm1880_div_hw_clock bm1880_div_clks[]

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Fixes: 1ab4601da55b ("clk: Add common clock driver for BM1880 SoC")
Link: https://lore.kernel.org/r/20211223154244.1024062-1-conor.dooley@microchip.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

clk: bm1800: Remove set but not used variable 'fref'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/clk/clk-bm1880.c: In function 'bm1880_pll_rate_calc':
drivers/clk/clk-bm1880.c:477:13: warning:
variable 'fref' set but not used [-Wunused-but-set-variable]

It is never used, so remove it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lkml.kernel.org/r/20191129033534.188257-1-yuehaibing@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

clk: Add common clock driver for BM1880 SoC

Add common clock driver for Bitmain BM1880 SoC. The clock controller on
BM1880 has supplies clocks to all peripherals in the form of gate clocks
and composite clocks (fixed factor + gate).

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lkml.kernel.org/r/20191115162901.17456-7-manivannan.sadhasivam@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>