From: Doug Anderson <dianders@chromium.org>
To: satya priya <skakit@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>,
Matthias Kaehlcke <mka@chromium.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andy Gross <agross@kernel.org>, Rob Herring <robh+dt@kernel.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Akash Asthana <akashast@codeaurora.org>,
Roja Rani Yarubandi <rojay@codeaurora.org>,
msavaliy@qti.qualcomm.com
Subject: Re: [PATCH V5 2/4] arm64: dts: qcom: sc7180: Add necessary pinctrl and interrupt config for BT UART
Date: Thu, 10 Sep 2020 07:40:24 -0700 [thread overview]
Message-ID: <CAD=FV=ULJqgHutr524wb-wVq4gejqo1p_zqRXP=h4Co6Gvmzew@mail.gmail.com> (raw)
In-Reply-To: <1599742438-16811-3-git-send-email-skakit@codeaurora.org>
Hi,
On Thu, Sep 10, 2020 at 5:55 AM satya priya <skakit@codeaurora.org> wrote:
>
> Add a suitable sleep configuration for uart3 to support Bluetooth wakeup.
>
> If QUP function is selected in sleep state, UART RTS/RFR is pulled high
> during suspend and BT SoC not able to send wakeup bytes. So, configure
> GPIO mode in sleep state to keep it low during suspend.
>
> Signed-off-by: satya priya <skakit@codeaurora.org>
> Reviewed-by: Akash Asthana <akashast@codeaurora.org>
> ---
> Changes in V2:
> - This patch adds sleep state for BT UART. Newly added in V2.
>
> Changes in V3:
> - Remove "output-high" for TX from both sleep and default states
> as it is not required. Configure pull-up for TX in sleep state.
>
> Changes in V4:
> - As per Matthias's comment, removed drive-strength for sleep state
> and fixed nit-pick.
>
> Changes in V5:
> - As per Matthias's comments, moved pinmux change for sleep state,
> pinctrl and interrupt config to the board specific file.
>
> arch/arm64/boot/dts/qcom/sc7180-idp.dts | 48 +++++++++++++++++++++++++++++++++
> 1 file changed, 48 insertions(+)
Similar comment to patch #1 in that this applies only to the IDP board
but that's not obvious from ${SUBJECT}
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> index 04888df..e529a41 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> @@ -344,6 +344,10 @@
> };
>
> &uart3 {
> + pinctrl-names = "default", "sleep";
> + pinctrl-1 = <&qup_uart3_sleep>;
> + interrupts-extended = <&intc GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>,
> + <&tlmm 41 IRQ_TYPE_EDGE_FALLING>;
You need a:
/delete-property/interrupts;
...or, alternatively, a patch before this one that converts all the
UARTs in sc7180 to just use interrupts-extended.
> status = "okay";
Slight nit is that usually I see the status line first. All the other
instances in this file have it that way. Can you match?
-Doug
next prev parent reply other threads:[~2020-09-10 14:46 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-10 12:53 [PATCH V5 0/4] Add wakeup support over UART RX satya priya
2020-09-10 12:53 ` [PATCH V5 1/4] arm64: dts: qcom: sc7180: Improve the pin config settings for CTS and TX satya priya
2020-09-10 14:40 ` Doug Anderson
2020-09-11 10:14 ` skakit
2020-09-10 12:53 ` [PATCH V5 2/4] arm64: dts: qcom: sc7180: Add necessary pinctrl and interrupt config for BT UART satya priya
2020-09-10 14:40 ` Doug Anderson [this message]
2020-09-11 10:15 ` skakit
2020-09-11 13:52 ` Bjorn Andersson
2020-09-11 15:30 ` Doug Anderson
2020-09-10 15:35 ` Matthias Kaehlcke
2020-09-11 10:15 ` skakit
2020-09-10 23:45 ` Bjorn Andersson
2020-09-11 10:16 ` skakit
2020-09-10 12:53 ` [PATCH V5 3/4] arm64: dts: qcom: sc7180-trogdor: Add " satya priya
2020-09-10 14:42 ` Doug Anderson
2020-09-11 10:15 ` skakit
2020-09-10 12:53 ` [PATCH V5 4/4] tty: serial: qcom_geni_serial: Fix the UART wakeup issue satya priya
2020-09-10 23:06 ` Bjorn Andersson
2020-09-16 12:25 ` Greg KH
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