power: sequencing: qcom-wcn: fix bluetooth-wifi copypasta for WCN6855

Prevent a name conflict (which is surprisingly not caught by the
framework).

Fixes: bd4c8bafcf50 ("power: sequencing: qcom-wcn:

power: sequencing: qcom-wcn: fix bluetooth-wifi copypasta for WCN6855

Prevent a name conflict (which is surprisingly not caught by the
framework).

Fixes: bd4c8bafcf50 ("power: sequencing: qcom-wcn: improve support for wcn6855")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250625-topic-wcn6855_pwrseq-v1-1-cfb96d599ff8@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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power: sequencing: thead-gpu: use new defines for match() return values

Replace the magic numbers with proper defines we now have in the header.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Li

power: sequencing: thead-gpu: use new defines for match() return values

Replace the magic numbers with proper defines we now have in the header.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624-pwrseq-match-defines-v1-5-a59d90a951f1@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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power: sequencing: qcom-wcn: use new defines for match() return values

Replace the magic numbers with proper defines we now have in the header.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Lin

power: sequencing: qcom-wcn: use new defines for match() return values

Replace the magic numbers with proper defines we now have in the header.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624-pwrseq-match-defines-v1-4-a59d90a951f1@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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power: sequencing: add defines for return values of the match() callback

Instead of using 0 and 1 as magic numbers, let's add proper defines
whose names tell the reader what the meaning behind them

power: sequencing: add defines for return values of the match() callback

Instead of using 0 and 1 as magic numbers, let's add proper defines
whose names tell the reader what the meaning behind them is.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624-pwrseq-match-defines-v1-3-a59d90a951f1@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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power: sequencing: extend build coverage with COMPILE_TEST=y

Enable building the pwrseq drivers with COMPILE_TEST enabled. This makes
it easier to build-test them.

Reviewed-by: Ulf Hansson <ulf.han

power: sequencing: extend build coverage with COMPILE_TEST=y

Enable building the pwrseq drivers with COMPILE_TEST enabled. This makes
it easier to build-test them.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624-pwrseq-match-defines-v1-2-a59d90a951f1@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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power: sequencing: thead-gpu: add missing header

When using kcalloc(), kfree() etc., we need to include linux/slab.h.
While on some architectures it may work fine because the header is
pulled in imp

power: sequencing: thead-gpu: add missing header

When using kcalloc(), kfree() etc., we need to include linux/slab.h.
While on some architectures it may work fine because the header is
pulled in implicitly, on others it triggers the following errors:

drivers/power/sequencing/pwrseq-thead-gpu.c: In function ‘pwrseq_thead_gpu_match’:
drivers/power/sequencing/pwrseq-thead-gpu.c:147:21: error: implicit declaration of function ‘kcalloc’ [-Wimplicit-function-declaration]
147 | ctx->clks = kcalloc(ctx->num_clks, sizeof(*ctx->clks), GFP_KERNEL);

Fixes: d4c2d9b5b7ce ("power: sequencing: Add T-HEAD TH1520 GPU power sequencer driver")
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624-pwrseq-match-defines-v1-1-a59d90a951f1@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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power: sequencing: Add T-HEAD TH1520 GPU power sequencer driver

Introduce the pwrseq-thead-gpu driver, a power sequencer provider for
the Imagination BXM-4-64 GPU on the T-HEAD TH1520 SoC. This driv

power: sequencing: Add T-HEAD TH1520 GPU power sequencer driver

Introduce the pwrseq-thead-gpu driver, a power sequencer provider for
the Imagination BXM-4-64 GPU on the T-HEAD TH1520 SoC. This driver
controls an auxiliary device instantiated by the AON power domain.

The TH1520 GPU requires a specific sequence to correctly initialize and
power down its resources:
- Enable GPU clocks (core and sys).
- De-assert the GPU clock generator reset (clkgen_reset).
- Introduce a short hardware-required delay.
- De-assert the GPU core reset. The power-down sequence performs these
steps in reverse.

Implement this sequence via the pwrseq_power_on and pwrseq_power_off
callbacks.

Crucially, the driver's match function is called when a consumer (the
Imagination GPU driver) requests the "gpu-power" target. During this
match, the sequencer uses clk_bulk_get() and
reset_control_get_exclusive() on the consumer's device to obtain handles
to the GPU's "core" and "sys" clocks, and the GPU core reset. These,
along with clkgen_reset obtained from parent aon node, allow it to
perform the complete sequence.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
Link: https://lore.kernel.org/r/20250623-apr_14_for_sending-v6-1-6583ce0f6c25@samsung.com
[Bartosz: use a ternary operator instead of implicitly casting the
result of a boolean expression to int]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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