From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: Amit Pundir <amit.pundir@linaro.org>,
Bjorn Andersson <andersson@kernel.org>,
Andy Gross <agross@kernel.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Caleb Connolly <caleb.connolly@linaro.org>
Cc: linux-arm-msm <linux-arm-msm@vger.kernel.org>,
dt <devicetree@vger.kernel.org>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
Date: Tue, 31 Jan 2023 10:54:47 +0000 [thread overview]
Message-ID: <39751511-3f06-7c39-9c21-208d4c272113@linaro.org> (raw)
In-Reply-To: <20230124182857.1524912-1-amit.pundir@linaro.org>
On 24/01/2023 18:28, Amit Pundir wrote:
> Put cont splash memory region under the reserved-memory
> as confirmed by the downstream code as well.
>
> Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
> ---
> arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
> index f41c6d600ea8..2ae59432cbda 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
> @@ -100,6 +100,14 @@ hdmi_con: endpoint {
> };
> };
>
> + reserved-memory {
> + /* Cont splash region set up by the bootloader */
> + cont_splash_mem: framebuffer@9d400000 {
> + reg = <0x0 0x9d400000 0x0 0x2400000>;
> + no-map;
> + };
> + };
> +
> lt9611_1v8: lt9611-vdd18-regulator {
> compatible = "regulator-fixed";
> regulator-name = "LT9611_1V8";
Doesn't this mean we loose 0x2400000 of DRAM for all rb3 platforms
though ? About what 37 megabytes.. ?
IMO it would be better to have a bootloader that cares about continuous
splash to apply a dtb overlay or simply to add a separate dts
sdm845-db845c-continuous-spash.dts.
---
bod
next prev parent reply other threads:[~2023-01-31 10:54 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-24 18:28 [PATCH] arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved Amit Pundir
2023-01-31 10:46 ` Caleb Connolly
2023-01-31 10:54 ` Bryan O'Donoghue [this message]
2023-01-31 11:06 ` Dmitry Baryshkov
2023-01-31 12:45 ` Konrad Dybcio
2023-01-31 13:33 ` Dmitry Baryshkov
2023-02-09 9:05 ` Amit Pundir
2023-02-09 11:03 ` Bryan O'Donoghue
2023-02-09 12:08 ` Konrad Dybcio
2023-02-09 12:11 ` Bryan O'Donoghue
2023-02-09 12:22 ` Bryan O'Donoghue
2023-02-09 12:32 ` Konrad Dybcio
2023-02-09 13:54 ` Dmitry Baryshkov
2023-04-10 8:51 ` Amit Pundir
2023-04-10 8:54 ` Amit Pundir
2023-04-10 12:44 ` Bryan O'Donoghue
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