From: djw@t-chip.com.cn (djw at t-chip.com.cn)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 0/5] Add sdmmc UHS support to ROC-RK3328-CC board.
Date: Thu, 31 May 2018 11:27:48 +0800 [thread overview]
Message-ID: <1527737273-8387-1-git-send-email-djw@t-chip.com.cn> (raw)
From: Levin Du <djw@t-chip.com.cn>
Hi all, this is an attemp to add sdmmc UHS support to the
ROC-RK3328-CC board.
This patch series adds a new compatible `rockchip,rk3328-gpio-mute` to
the gpio-syscon driver for the access of the GPIO_MUTE pin in rk3328.
A new gpio controller named `gpio_mute` is defined in
rk3328.dtsi and so that all rk3328 boards has access to it.
The ROC-RK3328-CC board use the new gpio <&gpio_mute 0> in
gpio-regulator to control the signal voltage of the sdmmc.
It is essential for UHS support which requires 1.8V signal voltage.
Many thanks to the Linux people!
Changes in v3:
- Change from general gpio-syscon to specific rk3328-gpio-mute
- Use dedicated "rockchip,rk3328-gpio-mute" driver
- Use <&gpio_mute 0> instead of <&gpio_mute 1> to refer to the GPIO_MUTE pin.
Changes in v2:
- Rename gpio_syscon10 to gpio_mute in doc
- Rename gpio_syscon10 to gpio_mute in rk3328.dtsi
- Rename gpio_syscon10 to gpio_mute in rk3328-roc-cc.dts
Changes in v1:
- New: allow fetching syscon from parent node in gpio-syscon driver
- Refactured for general gpio-syscon usage for Rockchip SoCs.
- Add doc rockchip,gpio-syscon.txt
- Split from V0 and add to rk3328.dtsi for general use.
- Split from V0.
- Split into small patches
- Sort dts properties in sdmmc node
Heiko Stuebner (1):
gpio: syscon: allow fetching syscon from parent node
Levin Du (4):
gpio: syscon: rockchip: add GPIO_MUTE support for rk3328
arm64: dts: rockchip: Add GPIO_MUTE pin support to rk3328
arm64: dts: rockchip: Add io-domain to roc-rk3328-cc
arm64: dts: rockchip: Add sdmmc UHS support for roc-rk3328-cc
.../bindings/gpio/rockchip,rk3328-gpio-mute.txt | 28 ++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 34 ++++++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3328.dtsi | 7 +++++
drivers/gpio/gpio-syscon.c | 33 +++++++++++++++++++++
4 files changed, 102 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/rockchip,rk3328-gpio-mute.txt
--
2.7.4
next reply other threads:[~2018-05-31 3:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-31 3:27 djw at t-chip.com.cn [this message]
2018-05-31 3:27 ` [PATCH v3 2/5] gpio: syscon: rockchip: add GPIO_MUTE support for rk3328 djw at t-chip.com.cn
2018-05-31 14:45 ` Rob Herring
2018-06-01 2:05 ` Levin
2018-06-01 17:03 ` Rob Herring
2018-06-02 8:40 ` Levin Du
2018-06-05 19:58 ` Rob Herring
2018-06-07 1:32 ` Levin
2018-06-28 7:22 ` djw at archiso.i-did-not-set--mail-host-address--so-tickle-me
2018-07-06 21:10 ` Rob Herring
2018-05-31 3:27 ` [PATCH v3 3/5] arm64: dts: rockchip: Add GPIO_MUTE pin support to rk3328 djw at t-chip.com.cn
2018-05-31 3:27 ` [PATCH v3 4/5] arm64: dts: rockchip: Add io-domain to roc-rk3328-cc djw at t-chip.com.cn
2018-05-31 5:03 ` [PATCH v3 5/5] arm64: dts: rockchip: Add sdmmc UHS support for roc-rk3328-cc djw at t-chip.com.cn
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