Commit Graph

18 Commits

Author SHA1 Message Date
Gustavo A. R. Silva
65f9e1becb clk: socfpga: agilex: Add bounds-checking coverage for struct stratix10_clock_data
In order to gain the bounds-checking coverage that __counted_by provides
to flexible-array members at run-time via CONFIG_UBSAN_BOUNDS (for array
indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions),
we must make sure that the counter member, in this case `num`, is updated
before the first access to the flex-array member, in this case array `hws`.

commit f316cdff8d ("clk: Annotate struct clk_hw_onecell_data with
__counted_by") introduced `__counted_by` for `struct clk_hw_onecell_data`
together with changes to relocate some of assignments of counter `num`
before `hws` is accessed:

include/linux/clk-provider.h:
1380 struct clk_hw_onecell_data {
1381         unsigned int num;
1382         struct clk_hw *hws[] __counted_by(num);
1383 };

However, this structure is used as a member in other structs, in this
case in `struct sstratix10_clock_data`:

drivers/clk/socfpga/stratix10-clk.h:
  9 struct stratix10_clock_data {
 10         void __iomem            *base;
 11
 12         /* Must be last */
 13         struct clk_hw_onecell_data      clk_data;
 14 };

Hence, we need to move the assignments to `clk_data->clk_data.num` after
allocations for `struct stratix10_clock_data` and before accessing the
flexible array `clk_data->clk_data.hws`. And, as assignments for both
`clk_data->clk_data.num` and `clk_data->base` are originally adjacent to
each other, relocate both assignments together.

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/385c516c498e07eb9a521107e16a7efd26e86ea5.1698117815.git.gustavoars@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-10-23 20:34:39 -07:00
Yangtao Li
90f79ac5bf clk: socfpga: agilex: 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/20230705065313.67043-11-frank.li@vivo.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-08-22 14:28:34 -07:00
Rob Herring
a96cbb146a 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>
2023-07-19 13:13:16 -07:00
Cai Huoqing
ee4abc4c5c clk: socfpga: agilex: Make use of the helper function devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20210907085137.4407-1-caihuoqing@baidu.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-01-05 16:43:41 -08:00
Dinh Nguyen
09540fa337 clk: socfpga: agilex: fix duplicate s2f_user0_clk
Remove the duplicate s2f_user0_clk and the unused s2f_usr0_mux define.

Fixes: f817c132db ("clk: socfpga: agilex: fix up s2f_user0_clk representation")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210916225126.1427700-1-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-09-24 16:03:08 -07:00
Dinh Nguyen
d17929eb10 clk: socfpga: agilex: add the bypass register for s2f_usr0 clock
Add the bypass register for the s2f_user0_clk.

Fixes: 80c6b7a089 ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Kris Chaplin <kris.chaplin@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210713144621.605140-3-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-07-26 17:56:21 -07:00
Dinh Nguyen
f817c132db clk: socfpga: agilex: fix up s2f_user0_clk representation
Correct the s2f_user0_mux clock representation.

Fixes: 80c6b7a089 ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Kris Chaplin <kris.chaplin@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210713144621.605140-2-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-07-26 17:56:21 -07:00
Dinh Nguyen
9d563236cc clk: socfpga: agilex: fix the parents of the psi_ref_clk
The psi_ref_clk comes from the C2 node of the main_pll and periph_pll,
not the C3.

Fixes: 80c6b7a089 ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Kris Chaplin <kris.chaplin@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210713144621.605140-1-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-07-26 17:56:21 -07:00
Dinh Nguyen
c2c9c5661a clk: agilex/stratix10: add support for the 2nd bypass
The EMAC clocks on Stratix10/Agilex/N5X have an additional bypass that
was not being accounted for. The bypass selects between
emaca_clk/emacb_clk and boot_clk.

Because the bypass register offset is different between Stratix10 and
Agilex/N5X, it's best to create a new function to calculate the bypass.

Fixes: 80c6b7a089 ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210611025201.118799-3-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-27 16:39:59 -07:00
Dinh Nguyen
6855ee8396 clk: agilex/stratix10: fix bypass representation
Each of these clocks(s2f_usr0/1, sdmmc_clk, gpio_db, emac_ptp,
emac0/1/2) have a bypass setting that can use the boot_clk. The
previous representation was not correct.

Fix the representation.

Fixes: 80c6b7a089 ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210611025201.118799-2-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-27 16:39:59 -07:00
Dinh Nguyen
efbe21df3e clk: agilex/stratix10: remove noc_clk
Early documentation had a noc_clk, but in reality, it's just the
noc_free_clk. Remove the noc_clk clock and just use the noc_free_clk.

Fixes: 80c6b7a089 ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210611025201.118799-1-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-27 16:39:59 -07:00
Stephen Boyd
abbe1eff90 clk: socfpga: Fix code formatting
This function's parameters are oddly formatted. Looks like a newline was
missed or something. Fix it.

Cc: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210331023119.3294893-1-sboyd@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-03-30 19:31:26 -07:00
Dinh Nguyen
ba7e258425 clk: socfpga: Convert to s10/agilex/n5x to use clk_hw
As recommended by Stephen Boyd, convert the Agilex/Stratix10/n5x clock
driver to use the clk_hw registration method.

Suggested-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210302214151.1333447-3-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-03-30 19:26:26 -07:00
Dinh Nguyen
a0f9819cbe clk: socfpga: agilex: add clock driver for eASIC N5X platform
Add support for Intel's eASIC N5X platform. The clock manager driver for
the N5X is very similar to the Agilex platform, we can re-use most of
the Agilex clock driver.

This patch makes the necessary changes for the driver to differentiate
between the Agilex and the N5X platforms.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210212143059.478554-2-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-02-12 13:04:58 -08:00
YueHaibing
b10f224935 clk: socfpga: agilex: Remove unused variable 'cntr_mux'
drivers/clk/socfpga/clk-agilex.c:24:37: warning: ‘cntr_mux’ defined but not used [-Wunused-const-variable=]
 static const struct clk_parent_data cntr_mux[] = {
                                     ^~~~~~~~

There is no caller in tree, so can remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200915020950.4688-1-yuehaibing@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-09-22 12:46:12 -07:00
Dinh Nguyen
44a7f3e822 clk: socfpga: agilex: mpu_l2ram_clk should be mpu_ccu_clk
Preliminary documentation documented the mpu_l2ram_clk, but since then,
the mpu_l2ram_clk is no longer documented. It's now referred to as
mpu_ccu_clk.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20200616202417.14376-3-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-06-19 19:27:33 -07:00
Dinh Nguyen
6f3bcf56f8 clk: socfpga: agilex: add nand_x_clk and nand_ecc_clk
And the nand_x_clk and nand_ecc_clk. Make the nand_x_clk be the main
clock that is feeding the NAND IP and correct it's parent to be the
l4_mp_clk.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20200616202417.14376-2-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-06-19 19:27:33 -07:00
Dinh Nguyen
80c6b7a089 clk: socfpga: agilex: add clock driver for the Agilex platform
For the most part the Agilex clock structure is very similar to
Stratix10, so we re-use most of the Stratix10 clock driver.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lkml.kernel.org/r/20200512181647.5071-5-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-05-26 19:13:05 -07:00