Граф коммитов

6 Коммитов

Автор SHA1 Сообщение Дата
Marc Zyngier 046a6ee234 irqchip: Bulk conversion to generic_handle_domain_irq()
Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
2021-06-10 13:09:19 +01:00
Anson Huang c201f43255 irqchip/imx-intmux: Use dev_err_probe() to simplify error handling
dev_err_probe() can reduce code size, uniform error handling and record the
defer probe reason etc., use it to simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1597126576-18383-1-git-send-email-Anson.Huang@nxp.com
2020-09-13 17:38:52 +01:00
Wei Yongjun 5b6570bbb2 irqchip/imx-intmux: Fix irqdata regs save in imx_intmux_runtime_suspend()
Gcc report warning as follows:

drivers/irqchip/irq-imx-intmux.c:316:29: warning:
 variable 'irqchip_data' set but not used [-Wunused-but-set-variable]
  316 |  struct intmux_irqchip_data irqchip_data;
      |                             ^~~~~~~~~~~~

irqdata regs is stored to this variable on the stack in
imx_intmux_runtime_suspend(), which means a nop. this commit
fix to save regs to the right place.

Fixes: bb403111e0 ("irqchip/imx-intmux: Implement intmux runtime power management")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200729155849.33919-1-weiyongjun1@huawei.com
2020-07-30 09:20:48 +01:00
Joakim Zhang bb403111e0 irqchip/imx-intmux: Implement intmux runtime power management
When the system is suspended, we can explicitly disable clock to save
power. To achieve this, we need save registers' state since it could be
lost after power off.

Implement power management which will:
- Turn the clock off after probing
- Disable clock and save registers' state on system suspend, as
  well as enable clock and restore registers' state on resume
- Rely on the Power Domain framework to shutdown the intmux
  power domain

Without CONFIG_PM, the clock is always on after probe stage.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
[maz: revamped commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200727141734.24890-2-qiangqing.zhang@nxp.com
2020-07-27 08:55:05 +01:00
Gustavo A. R. Silva 2f7a9bda42 irqchip/imx-intmux: Use struct_size() helper in devm_kzalloc()
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.

This code was detected with the help of Coccinelle and, audited and
fixed manually.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200616230923.GA24937@embeddedor
2020-06-27 11:55:29 +01:00
Joakim Zhang 2fbb13961e irqchip: Add NXP INTMUX interrupt multiplexer support
The Interrupt Multiplexer (INTMUX) expands the number of peripherals
that can interrupt the core:
* The INTMUX has 8 channels that are assigned to 8 NVIC interrupt slots.
* Each INTMUX channel can receive up to 32 interrupt sources and has 1
  interrupt output.
* The INTMUX routes the interrupt sources to the interrupt outputs.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200117060653.27485-3-qiangqing.zhang@nxp.com
2020-01-20 19:10:05 +00:00