From: Michal Simek <michal.simek@amd.com>
To: u-boot@lists.denx.de, git@amd.com
Cc: "Anshul Dalal" <anshuld@ti.com>,
"Arturs Artamonovs" <arturs.artamonovs@analog.com>,
"Eoin Dickson" <eoin.dickson@microchip.com>,
"Fabio Estevam" <festevam@gmail.com>,
"Greg Malysa" <malysagreg@gmail.com>,
"Ian Roberts" <ian.roberts@timesys.com>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"J. Neuschäfer" <j.ne@posteo.net>,
"Marek Vasut" <marek.vasut+renesas@mailbox.org>,
"Nathan Barrett-Morrison" <nathan.morrison@timesys.com>,
"Neil Armstrong" <neil.armstrong@linaro.org>,
"Nithish Kumar Naroju" <nithishkumar.naroju@amd.com>,
"Oliver Gaskell" <Oliver.Gaskell@analog.com>,
"Philip Molloy" <philip.molloy@analog.com>,
"Radhey Shyam Pandey" <radhey.shyam.pandey@amd.com>,
"Rasmus Villemoes" <ravi@prevas.dk>,
"Rohit Visavalia" <rohit.visavalia@amd.com>,
"Simon Glass" <sjg@chromium.org>,
"Tanmay Kathpalia" <tanmay.kathpalia@altera.com>,
"Tom Rini" <trini@konsulko.com>,
"Utsav Agarwal" <utsav.agarwal@analog.com>,
"Vasileios Bimpikas" <vasileios.bimpikas@analog.com>
Subject: Re: [PATCH v2 0/3] gpio: Introduce gpio-delay driver and enable it on Kria
Date: Thu, 12 Feb 2026 12:33:41 +0100 [thread overview]
Message-ID: <efd4edb2-d01d-4263-9fe9-303f8cfd9581@amd.com> (raw)
In-Reply-To: <cover.1770105146.git.michal.simek@amd.com>
On 2/3/26 08:52, Michal Simek wrote:
> Hi,
>
> we need to wait more time for getting USB hub out of reset to be able to do
> initialiation over i2c that's why use gpio-delay driver instead of changing
> waiting time in usb hub driver. Waiting time depends on gpio wiring on the
> board which is in some of our case going via SLG programmable device.
>
> Thanks,
> Michal
>
> Changes in v2:
> - Check return value from dm_gpio_set_value()
> - Do not use GPIOD_IS_OUT when requesting gpio
> - fix commit message
>
> Michal Simek (3):
> gpio: Add GPIO delay driver
> xilinx: Enable GPIO delay driver on Kria platforms
> arm64: zynqmp: Wire gpio-delay driver for USB hub reset
>
> arch/arm/dts/zynqmp-sck-kd-g-revA.dtso | 13 ++-
> arch/arm/dts/zynqmp-sck-kr-g-revA.dtso | 16 ++-
> arch/arm/dts/zynqmp-sck-kr-g-revB.dtso | 16 ++-
> arch/arm/dts/zynqmp-sck-kv-g-revA.dtso | 13 ++-
> arch/arm/dts/zynqmp-sck-kv-g-revB.dtso | 11 +-
> configs/xilinx_zynqmp_kria_defconfig | 1 +
> drivers/gpio/Kconfig | 8 ++
> drivers/gpio/Makefile | 1 +
> drivers/gpio/gpio-delay.c | 139 +++++++++++++++++++++++++
> 9 files changed, 202 insertions(+), 16 deletions(-)
> create mode 100644 drivers/gpio/gpio-delay.c
>
Applied.
M
prev parent reply other threads:[~2026-02-12 11:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-03 7:52 [PATCH v2 0/3] gpio: Introduce gpio-delay driver and enable it on Kria Michal Simek
2026-02-03 7:52 ` [PATCH v2 1/3] gpio: Add GPIO delay driver Michal Simek
2026-02-03 7:52 ` [PATCH v2 2/3] xilinx: Enable GPIO delay driver on Kria platforms Michal Simek
2026-02-03 7:52 ` [PATCH v2 3/3] arm64: zynqmp: Wire gpio-delay driver for USB hub reset Michal Simek
2026-02-03 11:39 ` [PATCH v2 0/3] gpio: Introduce gpio-delay driver and enable it on Kria Marek Vasut
2026-02-03 15:32 ` Michal Simek
2026-02-03 16:38 ` Marek Vasut
2026-02-03 16:57 ` Quentin Schulz
2026-02-03 20:42 ` Marek Vasut
2026-02-12 11:33 ` Michal Simek [this message]
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