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path: root/include/linux/soc/qcom/tc9563.h
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2026-10-21PCI/pwrctrl: tc9563: Switch per-port reset to GPIO descriptor APILorenzo Bianconi
Remove the local TC9563_GPIO_MASK and TC9563_GPIO_DEASSERT_BITS definitions, which are no longer used after switching to the GPIO descriptor API. Move TC9563_GPIO_CONFIG and TC9563_RESET_GPIO definitions in tc9563.h header file. Replace the direct regmap-based per-port reset logic in assert_deassert_reset() with gpiod_direction_output() calls, falling back to the legacy regmap approach only when no reset-gpios DT property is present for a given port. Add the reset GPIO pointer to struct tc9563_pwrctrl_cfg and introduce tc9563_pwrctrl_parse_reset_line() to look up reset-gpios from each PCI downstream port child node. The lookup is done lazily at the beginning of power_on(), returning -EPROBE_DEFER until the GPIO chip is registered. Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Reviewed-by: Alex Elder <elder@riscstar.com> Link: https://patch.msgid.link/20260909-pci-tc9563-aux-v5-4-c9b33f56c8d3@oss.qualcomm.com
2026-10-21gpio: tc9563: Add support for the embedded GPIO controllerAlex Elder
Add a driver for the GPIO controller embedded in the Toshiba TC9563 PCIe switch (and the Qualcomm QPS615). The device implements 37 GPIOs using two register banks: three registers control the first 32 GPIOs and three more control GPIOs 32-36. GPIOs 20 and 21 are reserved while GPIOs 22-24, 27-28, 31, and 34 are input-only. Register the driver as an auxiliary device driver. The TC9563 power controller creates the auxiliary device and provides a regmap that gives access to the GPIO registers, so use the gpio-regmap helpers to implement the GPIO chip. Signed-off-by: Alex Elder <elder@riscstar.com> Co-developed-by: Daniel Thompson <daniel@riscstar.com> Signed-off-by: Daniel Thompson <daniel@riscstar.com> Co-developed-by: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com> [bhelgaas: commit log per https://lore.kernel.org/arQ2mDjqHv4gmoOK@lore-desk] [bhelgaas: squash Geert Uytterhoeven <geert+renesas@glider.be> Kconfig fix: https://lore.kernel.org/all/45484c37512a3102495d8b75b6e9f72a141ba42e.1792574560.git.geert+renesas@glider.be, Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Acked-by: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com>] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Linus Walleij <linusw@kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Link: https://patch.msgid.link/20260909-pci-tc9563-aux-v5-2-c9b33f56c8d3@oss.qualcomm.com