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| author | Alex Elder <elder@riscstar.com> | 2026-09-09 16:55:54 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-09-23 15:41:27 -0500 |
| commit | 3c06b0b0f3c963c954f775c836d2206a64da61b6 (patch) | |
| tree | 196c97cb9a4b76512eb15c9e20e3854109e7a124 /include/linux/soc | |
| parent | 7c773ec6c87f1adddf8e9a175f034e54c30726f4 (diff) | |
| download | linux-next-3c06b0b0f3c963c954f775c836d2206a64da61b6.tar.gz linux-next-3c06b0b0f3c963c954f775c836d2206a64da61b6.zip | |
gpio: tc9563: Add support for the embedded GPIO controller
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]
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
Diffstat (limited to 'include/linux/soc')
| -rw-r--r-- | include/linux/soc/qcom/tc9563.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/soc/qcom/tc9563.h b/include/linux/soc/qcom/tc9563.h new file mode 100644 index 000000000000..0dfd25747b9a --- /dev/null +++ b/include/linux/soc/qcom/tc9563.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2026 Qualcomm Innovation Center, Inc. All rights reserved. + * Author: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com> + */ + +#ifndef __QCOM_TC9563_H +#define __QCOM_TC9563_H + +#define TC9563_GPIO_DEV_NAME "tc9563-gpio" + +#define TC9563_GPIO_IN0_OFFSET 0x801200 +#define TC9563_GPIO_EN0_OFFSET 0x801208 +#define TC9563_GPIO_OUT0_OFFSET 0x801210 + +#endif /* __QCOM_TC9563_H */ |