From: Miao Wang via B4 Relay <devnull+shankerwangmiao.gmail.com@kernel.org>
To: Yinbo Zhu <zhuyinbo@loongson.cn>,
Linus Walleij <linusw@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>,
linux-gpio@vger.kernel.org,
Miao Wang <shankerwangmiao@gmail.com>
Subject: [PATCH RFC 0/4] gpio: loongson-64bit: add interrupt support for more models
Date: Sat, 26 Sep 2026 00:28:35 +0800 [thread overview]
Message-ID: <20260926-loongsongpio-v1-0-71de7ebebb76@gmail.com> (raw)
This patch series aims to correctly add interrupt support for GPIO
controllers found on more Loongson CPUs. The GPIO controllers in such
models do not have a complete intgrated interrupt controller, but choose
to delegate interrupt handling to their parent interrupt controller.
This sounds like a heirarchical interrupt setup, but what makes it
more complex is that multiple GPIO lines in these controllers may share
one interrupt line on the parent interrupt controller. The details is
described in the third patch.
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
---
Miao Wang (4):
gpio: loongson-64bit: Support for irq controller on 2k2000 and 7a2000
gpio: loongson-64bit: Generalize interrupt controller initialization
gpio: loongson-64bit: Add shared interrupt support
gpio: loongson-64bit: remove gpio_to_irq() handler
drivers/gpio/gpio-loongson-64bit.c | 708 +++++++++++++++++++++++++++++++++++--
1 file changed, 683 insertions(+), 25 deletions(-)
---
base-commit: 481ed5dd3ed7136f627b8ec372ba39f5b2e7d27f
change-id: 20260925-loongsongpio-829824a3d562
Best regards,
--
Miao Wang <shankerwangmiao@gmail.com>
next reply other threads:[~2026-09-25 16:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-25 16:28 Miao Wang via B4 Relay [this message]
2026-09-25 16:28 ` [PATCH RFC 1/4] gpio: loongson-64bit: Support for irq controller on 2k2000 and 7a2000 Miao Wang via B4 Relay
2026-09-25 16:28 ` [PATCH RFC 2/4] gpio: loongson-64bit: Generalize interrupt controller initialization Miao Wang via B4 Relay
2026-09-25 16:28 ` [PATCH RFC 3/4] gpio: loongson-64bit: Add shared interrupt support Miao Wang via B4 Relay
2026-10-01 8:33 ` Linus Walleij
2026-10-01 8:59 ` Miao Wang
2026-10-01 11:54 ` Linus Walleij
2026-10-01 17:47 ` Miao Wang
2026-10-01 19:43 ` Linus Walleij
2026-10-02 4:03 ` Miao Wang
2026-09-25 16:28 ` [PATCH RFC 4/4] gpio: loongson-64bit: remove gpio_to_irq() handler Miao Wang via B4 Relay
2026-09-29 13:01 ` [PATCH RFC 0/4] gpio: loongson-64bit: add interrupt support for more models Bartosz Golaszewski
2026-09-29 13:18 ` Miao Wang
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