From: Brian Masney <masneyb@kernel.org>
To: Alex Elder <elder@riscstar.com>
Cc: sboyd@kernel.org, bmasney+clk@redhat.com,
jbrunet+clk@baylibre.com, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, andersson@kernel.org,
konradybcio@kernel.org, abelvesa@kernel.org, kees@kernel.org,
gustavoars@kernel.org, mohd.anwar@oss.qualcomm.com,
lorenzo.bianconi@oss.qualcomm.com, danielt@kernel.org,
linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-msm@vger.kernel.org, linux-hardening@vger.kernel.org,
linux-kernel@vger.kernel.org,
Daniel Thompson <daniel@riscstar.com>
Subject: Re: [PATCH v2 2/3] clk: toshiba: introduce a TC9564 SoC clock driver
Date: Fri, 9 Oct 2026 19:42:28 +0200 [thread overview]
Message-ID: <asknhPZLx1lbvam2@x1g10> (raw)
In-Reply-To: <20261005230927.2000398-3-elder@riscstar.com>
On Mon, Oct 05, 2026 at 06:09:25PM -0500, Alex Elder wrote:
> Define a new platform driver that manages clocks implemented by the
> Toshiba TC9564 SoC. There are 21 clocks that can be enabled and
> disabled. Two of these are reserved, so only 19 can be managed.
>
> Two registers manage the state of the clocks. The registers are
> accessed via a regmap supplied by a system controller, because the
> region of memory accessed is shared with other drivers.
>
> Access to the memory region is provided via a BAR on a PCIe endpoint
> function embedded in the TC9564 SoC. For that reason the PCIe clock
> cannot be manipulated by this driver (it is assumed to be enabled).
> Similarly, control is not available for the I2C clock, because the
> PCIe subsystem on the TC9564 relies on I2C.
>
> Co-developed-by: Daniel Thompson <daniel@riscstar.com>
> Signed-off-by: Daniel Thompson <daniel@riscstar.com>
> Signed-off-by: Alex Elder <elder@riscstar.com>
Reviewed-by: Brian Masney <masneyb@kernel.org>
next prev parent reply other threads:[~2026-10-09 17:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-05 23:09 [PATCH v2 0/3] clk: introduce TC9564 clock support Alex Elder
2026-10-05 23:09 ` [PATCH v2 1/3] dt-bindings: clock: introduce toshiba,tc9564-clock.yaml Alex Elder
2026-10-09 9:31 ` Krzysztof Kozlowski
2026-10-09 13:44 ` Alex Elder
2026-10-09 13:56 ` Krzysztof Kozlowski
2026-10-09 14:23 ` Alex Elder
2026-10-09 14:38 ` Jerome Brunet
2026-10-09 15:27 ` Alex Elder
2026-10-09 14:46 ` Krzysztof Kozlowski
2026-10-09 15:09 ` Alex Elder
2026-10-05 23:09 ` [PATCH v2 2/3] clk: toshiba: introduce a TC9564 SoC clock driver Alex Elder
2026-10-09 17:42 ` Brian Masney [this message]
2026-10-05 23:09 ` [PATCH v2 3/3] arm64: dts: qcom: qcs6490-rb3gen2: add the clock controller Alex Elder
2026-10-06 0:30 ` Alex Elder
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