From: Sudeep Holla <sudeep.holla@arm.com>
To: Jolly Shah <jolly.shah@xilinx.com>,
ard.biesheuvel@linaro.org, mingo@kernel.org,
gregkh@linuxfoundation.org, matt@codeblueprint.co.uk,
hkallweit1@gmail.com, keescook@chromium.org,
dmitry.torokhov@gmail.com, mturquette@baylibre.com,
sboyd@codeaurora.org, michal.simek@xilinx.com,
robh+dt@kernel.org, mark.rutland@arm.com,
linux-clk@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
rajanv@xilinx.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Jolly Shah <jollys@xilinx.com>
Subject: Re: [PATCH v6 04/11] firmware: xilinx: Add query data API
Date: Thu, 10 May 2018 15:12:18 +0100 [thread overview]
Message-ID: <85f8f8c5-a177-dad8-e095-a9dd1c513e8d@arm.com> (raw)
In-Reply-To: <1523389127-14243-5-git-send-email-jollys@xilinx.com>
On 10/04/18 20:38, Jolly Shah wrote:
> From: Rajan Vaja <rajanv@xilinx.com>
>
> Add ZynqMP firmware query data API to query platform
> specific information(clocks, pins) from firmware.
>
> Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
> Signed-off-by: Jolly Shah <jollys@xilinx.com>
> ---
> drivers/firmware/xilinx/zynqmp.c | 14 ++++++++++++++
> include/linux/firmware/xlnx-zynqmp.h | 20 ++++++++++++++++++++
> 2 files changed, 34 insertions(+)
>
> diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
> index 44b43fa..ef09c44 100644
> --- a/drivers/firmware/xilinx/zynqmp.c
> +++ b/drivers/firmware/xilinx/zynqmp.c
> @@ -258,9 +258,23 @@ static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2,
> arg1, arg2, out);
> }
>
> +/**
> + * zynqmp_pm_query_data() - Get query data from firmware
> + * @qdata: Variable to the zynqmp_pm_query_data structure
> + * @out: Returned output value
> + *
> + * Return: Returns status, either success or error+reason
> + */
> +static int zynqmp_pm_query_data(struct zynqmp_pm_query_data qdata, u32 *out)
> +{
> + return zynqmp_pm_invoke_fn(PM_QUERY_DATA, qdata.qid, qdata.arg1,
> + qdata.arg2, qdata.arg3, out);
> +}
> +
> static const struct zynqmp_eemi_ops eemi_ops = {
> .get_api_version = zynqmp_pm_get_api_version,
> .ioctl = zynqmp_pm_ioctl,
> + .query_data = zynqmp_pm_query_data,
Can you give more insight into this ? How will be this used ?
How this aligns with data we get from DT ? I am just trying to
understand how is this information split between this API and DT for
example.
--
Regards,
Sudeep
next prev parent reply other threads:[~2018-05-10 14:12 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-10 19:38 [PATCH v6 00/11] drivers: Introduce firmware dnd clock river for ZynqMP core Jolly Shah
2018-04-10 19:38 ` [PATCH v6 01/11] dt-bindings: firmware: Add bindings for ZynqMP firmware Jolly Shah
2018-04-13 15:15 ` Rob Herring
2018-04-23 11:56 ` Greg KH
2018-04-10 19:38 ` [PATCH v6 02/11] firmware: xilinx: Add Zynqmp firmware driver Jolly Shah
2018-05-10 14:04 ` Sudeep Holla
2018-05-14 19:06 ` Jolly Shah
2018-04-10 19:38 ` [PATCH v6 03/11] firmware: xilinx: Add zynqmp IOCTL API for device control Jolly Shah
2018-05-10 14:09 ` Sudeep Holla
2018-05-14 19:11 ` Jolly Shah
2018-04-10 19:38 ` [PATCH v6 04/11] firmware: xilinx: Add query data API Jolly Shah
2018-05-10 14:12 ` Sudeep Holla [this message]
2018-05-14 19:16 ` Jolly Shah
2018-05-15 9:34 ` Sudeep Holla
2018-05-15 20:29 ` Jolly Shah
2018-04-10 19:38 ` [PATCH v6 05/11] firmware: xilinx: Add clock APIs Jolly Shah
2018-04-10 19:38 ` [PATCH v6 06/11] firmware: xilinx: Add debugfs interface Jolly Shah
2018-05-10 14:26 ` Sudeep Holla
2018-04-10 19:38 ` [PATCH v6 07/11] firmware: xilinx: Add debugfs for IOCTL API Jolly Shah
2018-04-10 19:38 ` [PATCH v6 08/11] firmware: xilinx: Add debugfs for query data API Jolly Shah
2018-04-10 19:38 ` [PATCH v6 09/11] firmware: xilinx: Add debugfs for clock control APIs Jolly Shah
2018-05-10 14:31 ` Sudeep Holla
2018-05-14 19:18 ` Jolly Shah
2018-05-15 8:57 ` Sudeep Holla
2018-05-25 19:23 ` Jolly Shah
2018-04-10 19:38 ` [PATCH v6 10/11] dt-bindings: clock: Add bindings for ZynqMP clock driver Jolly Shah
2018-04-16 21:28 ` Rob Herring
2018-04-10 19:38 ` [PATCH v6 11/11] drivers: clk: Add " Jolly Shah
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