* [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630
@ 2019-09-04 12:16 Lee Jones
2019-09-04 13:44 ` Vinod Koul
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Lee Jones @ 2019-09-04 12:16 UTC (permalink / raw)
To: agross, robh+dt, mark.rutland, bjorn.andersson
Cc: linux-arm-kernel, linux-kernel, linux-arm-msm, devicetree, Lee Jones
From: Bjorn Andersson <bjorn.andersson@linaro.org>
The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem
to be similar enough to the SDM845 that we can reuse the sdm845.dtsi.
Supported by this patch is: keyboard, battery monitoring, UFS storage,
USB host and Bluetooth.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm64/boot/dts/qcom/Makefile | 1 +
.../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 449 ++++++++++++++++++
2 files changed, 450 insertions(+)
create mode 100644 arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 0a7e5dfce6f7..670c6c65f9e9 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -12,5 +12,6 @@ dtb-$(CONFIG_ARCH_QCOM) += sdm845-cheza-r2.dtb
dtb-$(CONFIG_ARCH_QCOM) += sdm845-cheza-r3.dtb
dtb-$(CONFIG_ARCH_QCOM) += sdm845-db845c.dtb
dtb-$(CONFIG_ARCH_QCOM) += sdm845-mtp.dtb
+dtb-$(CONFIG_ARCH_QCOM) += sdm850-lenovo-yoga-c630.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs404-evb-1000.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs404-evb-4000.dtb
diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
new file mode 100644
index 000000000000..e49a339ad2df
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -0,0 +1,449 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Lenovo Yoga C630
+ *
+ * Copyright (c) 2019, Linaro Ltd.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include "sdm845.dtsi"
+#include "pm8998.dtsi"
+
+/ {
+ model = "Lenovo Yoga C630";
+ compatible = "lenovo,yoga-c630", "qcom,sdm845";
+
+ aliases {
+ hsuart0 = &uart6;
+ };
+};
+
+&apps_rsc {
+ pm8998-rpmh-regulators {
+ compatible = "qcom,pm8998-rpmh-regulators";
+ qcom,pmic-id = "a";
+
+ vdd-l2-l8-l17-supply = <&vreg_s3a_1p35>;
+ vdd-l7-l12-l14-l15-supply = <&vreg_s5a_2p04>;
+
+ vreg_s2a_1p125: smps2 {
+ };
+
+ vreg_s3a_1p35: smps3 {
+ regulator-min-microvolt = <1352000>;
+ regulator-max-microvolt = <1352000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_s4a_1p8: smps4 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_s5a_2p04: smps5 {
+ regulator-min-microvolt = <2040000>;
+ regulator-max-microvolt = <2040000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_s7a_1p025: smps7 {
+ };
+
+ vdd_qusb_hs0:
+ vdda_hp_pcie_core:
+ vdda_mipi_csi0_0p9:
+ vdda_mipi_csi1_0p9:
+ vdda_mipi_csi2_0p9:
+ vdda_mipi_dsi0_pll:
+ vdda_mipi_dsi1_pll:
+ vdda_qlink_lv:
+ vdda_qlink_lv_ck:
+ vdda_qrefs_0p875:
+ vdda_pcie_core:
+ vdda_pll_cc_ebi01:
+ vdda_pll_cc_ebi23:
+ vdda_sp_sensor:
+ vdda_ufs1_core:
+ vdda_ufs2_core:
+ vdda_usb1_ss_core:
+ vdda_usb2_ss_core:
+ vreg_l1a_0p875: ldo1 {
+ regulator-min-microvolt = <880000>;
+ regulator-max-microvolt = <880000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vddpx_10:
+ vreg_l2a_1p2: ldo2 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ regulator-always-on;
+ };
+
+ vreg_l3a_1p0: ldo3 {
+ };
+
+ vdd_wcss_cx:
+ vdd_wcss_mx:
+ vdda_wcss_pll:
+ vreg_l5a_0p8: ldo5 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <800000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vddpx_13:
+ vreg_l6a_1p8: ldo6 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l7a_1p8: ldo7 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l8a_1p2: ldo8 {
+ };
+
+ vreg_l9a_1p8: ldo9 {
+ };
+
+ vreg_l10a_1p8: ldo10 {
+ };
+
+ vreg_l11a_1p0: ldo11 {
+ };
+
+ vdd_qfprom:
+ vdd_qfprom_sp:
+ vdda_apc1_cs_1p8:
+ vdda_gfx_cs_1p8:
+ vdda_qrefs_1p8:
+ vdda_qusb_hs0_1p8:
+ vddpx_11:
+ vreg_l12a_1p8: ldo12 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vddpx_2:
+ vreg_l13a_2p95: ldo13 {
+ };
+
+ vreg_l14a_1p88: ldo14 {
+ regulator-min-microvolt = <1880000>;
+ regulator-max-microvolt = <1880000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l15a_1p8: ldo15 {
+ };
+
+ vreg_l16a_2p7: ldo16 {
+ };
+
+ vreg_l17a_1p3: ldo17 {
+ regulator-min-microvolt = <1304000>;
+ regulator-max-microvolt = <1304000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l18a_2p7: ldo18 {
+ };
+
+ vreg_l19a_3p0: ldo19 {
+ regulator-min-microvolt = <3100000>;
+ regulator-max-microvolt = <3108000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l20a_2p95: ldo20 {
+ regulator-min-microvolt = <2960000>;
+ regulator-max-microvolt = <2960000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l21a_2p95: ldo21 {
+ };
+
+ vreg_l22a_2p85: ldo22 {
+ };
+
+ vreg_l23a_3p3: ldo23 {
+ };
+
+ vdda_qusb_hs0_3p1:
+ vreg_l24a_3p075: ldo24 {
+ regulator-min-microvolt = <3075000>;
+ regulator-max-microvolt = <3083000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l25a_3p3: ldo25 {
+ regulator-min-microvolt = <3104000>;
+ regulator-max-microvolt = <3112000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vdda_hp_pcie_1p2:
+ vdda_hv_ebi0:
+ vdda_hv_ebi1:
+ vdda_hv_ebi2:
+ vdda_hv_ebi3:
+ vdda_mipi_csi_1p25:
+ vdda_mipi_dsi0_1p2:
+ vdda_mipi_dsi1_1p2:
+ vdda_pcie_1p2:
+ vdda_ufs1_1p2:
+ vdda_ufs2_1p2:
+ vdda_usb1_ss_1p2:
+ vdda_usb2_ss_1p2:
+ vreg_l26a_1p2: ldo26 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1208000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l28a_3p0: ldo28 {
+ };
+
+ vreg_lvs1a_1p8: lvs1 {
+ };
+
+ vreg_lvs2a_1p8: lvs2 {
+ };
+ };
+};
+
+&apps_smmu {
+ /* TODO: Figure out how to survive booting with this enabled */
+ status = "disabled";
+};
+
+&gcc {
+ protected-clocks = <GCC_QSPI_CORE_CLK>,
+ <GCC_QSPI_CORE_CLK_SRC>,
+ <GCC_QSPI_CNOC_PERIPH_AHB_CLK>;
+};
+
+&i2c1 {
+ status = "okay";
+ clock-frequency = <400000>;
+ qcom,geni-se-fifo;
+};
+
+&i2c3 {
+ status = "okay";
+ clock-frequency = <400000>;
+ qcom,geni-se-fifo;
+
+ hid@15 {
+ compatible = "hid-over-i2c";
+ reg = <0x15>;
+ hid-descr-addr = <0x1>;
+
+ interrupts-extended = <&tlmm 37 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ hid@2c {
+ compatible = "hid-over-i2c";
+ reg = <0x2c>;
+ hid-descr-addr = <0x20>;
+
+ interrupts-extended = <&tlmm 37 IRQ_TYPE_EDGE_RISING>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_hid_active>;
+ };
+};
+
+&i2c5 {
+ status = "okay";
+ clock-frequency = <400000>;
+ qcom,geni-se-fifo;
+
+ hid@10 {
+ compatible = "hid-over-i2c";
+ reg = <0x10>;
+ hid-descr-addr = <0x1>;
+
+ interrupts-extended = <&tlmm 125 IRQ_TYPE_EDGE_FALLING>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c6_hid_active>;
+ };
+};
+
+&i2c11 {
+ status = "okay";
+ clock-frequency = <400000>;
+ qcom,geni-se-fifo;
+
+ hid@5c {
+ compatible = "hid-over-i2c";
+ reg = <0x5c>;
+ hid-descr-addr = <0x1>;
+
+ interrupts-extended = <&tlmm 92 IRQ_TYPE_LEVEL_LOW>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c12_hid_active>;
+ };
+};
+
+&qup_i2c12_default {
+ drive-strength = <2>;
+ bias-disable;
+};
+
+&qup_uart6_default {
+ pinmux {
+ pins = "gpio45", "gpio46", "gpio47", "gpio48";
+ function = "qup6";
+ };
+
+ cts {
+ pins = "gpio45";
+ bias-pull-down;
+ };
+
+ rts-tx {
+ pins = "gpio46", "gpio47";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ rx {
+ pins = "gpio48";
+ bias-pull-up;
+ };
+};
+
+&qupv3_id_0 {
+ status = "okay";
+};
+
+&qupv3_id_1 {
+ status = "okay";
+};
+
+&tlmm {
+ gpio-reserved-ranges = <0 4>, <81 4>;
+
+ i2c2_hid_active: i2c2-hid-active {
+ pins = <37>;
+ function = "gpio";
+
+ input-enable;
+ bias-pull-up;
+ drive-strength = <2>;
+ };
+
+ i2c6_hid_active: i2c6-hid-active {
+ pins = <125>;
+ function = "gpio";
+
+ input-enable;
+ bias-pull-up;
+ drive-strength = <2>;
+ };
+
+ i2c12_hid_active: i2c12-hid-active {
+ pins = <92>;
+ function = "gpio";
+
+ input-enable;
+ bias-pull-up;
+ drive-strength = <2>;
+ };
+};
+
+&uart6 {
+ status = "okay";
+
+ bluetooth {
+ compatible = "qcom,wcn3990-bt";
+
+ vddio-supply = <&vreg_s4a_1p8>;
+ vddxo-supply = <&vreg_l7a_1p8>;
+ vddrf-supply = <&vreg_l17a_1p3>;
+ vddch0-supply = <&vreg_l25a_3p3>;
+ max-speed = <3200000>;
+ };
+};
+
+&ufs_mem_hc {
+ status = "okay";
+
+ vcc-supply = <&vreg_l20a_2p95>;
+ vcc-max-microamp = <600000>;
+};
+
+&ufs_mem_phy {
+ status = "okay";
+
+ vdda-phy-supply = <&vdda_ufs1_core>;
+ vdda-pll-supply = <&vdda_ufs1_1p2>;
+};
+
+&usb_1 {
+ status = "okay";
+};
+
+&usb_1_dwc3 {
+ dr_mode = "host";
+};
+
+&usb_1_hsphy {
+ status = "okay";
+
+ vdd-supply = <&vdda_usb1_ss_core>;
+ vdda-pll-supply = <&vdda_qusb_hs0_1p8>;
+ vdda-phy-dpdm-supply = <&vdda_qusb_hs0_3p1>;
+
+ qcom,imp-res-offset-value = <8>;
+ qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_21_6_MA>;
+ qcom,preemphasis-level = <QUSB2_V2_PREEMPHASIS_5_PERCENT>;
+ qcom,preemphasis-width = <QUSB2_V2_PREEMPHASIS_WIDTH_HALF_BIT>;
+};
+
+&usb_1_qmpphy {
+ status = "okay";
+
+ vdda-phy-supply = <&vdda_usb1_ss_1p2>;
+ vdda-pll-supply = <&vdda_usb1_ss_core>;
+};
+
+&usb_2 {
+ status = "okay";
+};
+
+&usb_2_dwc3 {
+ dr_mode = "host";
+};
+
+&usb_2_hsphy {
+ status = "okay";
+
+ vdd-supply = <&vdda_usb2_ss_core>;
+ vdda-pll-supply = <&vdda_qusb_hs0_1p8>;
+ vdda-phy-dpdm-supply = <&vdda_qusb_hs0_3p1>;
+
+ qcom,imp-res-offset-value = <8>;
+ qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_22_8_MA>;
+};
+
+&usb_2_qmpphy {
+ status = "okay";
+
+ vdda-phy-supply = <&vdda_usb2_ss_1p2>;
+ vdda-pll-supply = <&vdda_usb2_ss_core>;
+};
--
2.17.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630
2019-09-04 12:16 [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630 Lee Jones
@ 2019-09-04 13:44 ` Vinod Koul
2019-09-04 14:12 ` Sudeep Holla
2019-09-05 9:21 ` Sudeep Holla
2 siblings, 0 replies; 7+ messages in thread
From: Vinod Koul @ 2019-09-04 13:44 UTC (permalink / raw)
To: Lee Jones
Cc: agross, robh+dt, mark.rutland, bjorn.andersson, linux-arm-kernel,
linux-kernel, linux-arm-msm, devicetree
On 04-09-19, 13:16, Lee Jones wrote:
> From: Bjorn Andersson <bjorn.andersson@linaro.org>
>
> The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem
> to be similar enough to the SDM845 that we can reuse the sdm845.dtsi.
>
> Supported by this patch is: keyboard, battery monitoring, UFS storage,
> USB host and Bluetooth.
Reviewed-by: Vinod Koul <vkoul@kernel.org>
--
~Vinod
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630
2019-09-04 12:16 [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630 Lee Jones
2019-09-04 13:44 ` Vinod Koul
@ 2019-09-04 14:12 ` Sudeep Holla
2019-09-04 16:12 ` Lee Jones
2019-09-05 9:21 ` Sudeep Holla
2 siblings, 1 reply; 7+ messages in thread
From: Sudeep Holla @ 2019-09-04 14:12 UTC (permalink / raw)
To: Lee Jones
Cc: agross, robh+dt, mark.rutland, bjorn.andersson, linux-arm-kernel,
linux-kernel, linux-arm-msm, devicetree, Sudeep Holla
On Wed, Sep 04, 2019 at 01:16:06PM +0100, Lee Jones wrote:
> From: Bjorn Andersson <bjorn.andersson@linaro.org>
>
> The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem
> to be similar enough to the SDM845 that we can reuse the sdm845.dtsi.
>
> Supported by this patch is: keyboard, battery monitoring, UFS storage,
> USB host and Bluetooth.
>
Just curious to know if the idea of booting using ACPI is completely
dropped as it's extremely difficult(because the firmware is so hacked
up and may violate spec, just my opinion) for whatever reasons.
We just made ACPI table version checking more lenient for this platform
and would be good to know if we continue to run ACPI on that or will
abandon and just use DT.
--
Regards,
Sudeep
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630
2019-09-04 14:12 ` Sudeep Holla
@ 2019-09-04 16:12 ` Lee Jones
2019-09-04 16:52 ` Sudeep Holla
0 siblings, 1 reply; 7+ messages in thread
From: Lee Jones @ 2019-09-04 16:12 UTC (permalink / raw)
To: Sudeep Holla
Cc: agross, robh+dt, mark.rutland, bjorn.andersson, linux-arm-kernel,
linux-kernel, linux-arm-msm, devicetree
On Wed, 04 Sep 2019, Sudeep Holla wrote:
> On Wed, Sep 04, 2019 at 01:16:06PM +0100, Lee Jones wrote:
> > From: Bjorn Andersson <bjorn.andersson@linaro.org>
> >
> > The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem
> > to be similar enough to the SDM845 that we can reuse the sdm845.dtsi.
> >
> > Supported by this patch is: keyboard, battery monitoring, UFS storage,
> > USB host and Bluetooth.
> >
>
> Just curious to know if the idea of booting using ACPI is completely
> dropped as it's extremely difficult(because the firmware is so hacked
> up and may violate spec, just my opinion) for whatever reasons.
Once [0] is applied, we can boot Mainline using ACPI.
> We just made ACPI table version checking more lenient for this platform
> and would be good to know if we continue to run ACPI on that or will
> abandon and just use DT.
Which patch are you referring to? If you mean the ACPI v5.0 vs v5.1
patch authored by Ard, then yes I know, I instigated it's existence
due to these devices.
DT will *always* be more enabled than ACPI, so it's advised that you
use DT for anything useful. ACPI booting is ideal for things like
installing distros however, since they do not tend to provide DTBs in
their installers.
[0] https://lkml.org/lkml/2019/9/3/580
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630
2019-09-04 16:12 ` Lee Jones
@ 2019-09-04 16:52 ` Sudeep Holla
2019-09-04 17:07 ` Lee Jones
0 siblings, 1 reply; 7+ messages in thread
From: Sudeep Holla @ 2019-09-04 16:52 UTC (permalink / raw)
To: Lee Jones
Cc: agross, robh+dt, mark.rutland, bjorn.andersson, linux-arm-kernel,
linux-kernel, linux-arm-msm, devicetree, Sudeep Holla
On Wed, Sep 04, 2019 at 05:12:47PM +0100, Lee Jones wrote:
> On Wed, 04 Sep 2019, Sudeep Holla wrote:
>
> > On Wed, Sep 04, 2019 at 01:16:06PM +0100, Lee Jones wrote:
> > > From: Bjorn Andersson <bjorn.andersson@linaro.org>
> > >
> > > The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem
> > > to be similar enough to the SDM845 that we can reuse the sdm845.dtsi.
> > >
> > > Supported by this patch is: keyboard, battery monitoring, UFS storage,
> > > USB host and Bluetooth.
> > >
> >
> > Just curious to know if the idea of booting using ACPI is completely
> > dropped as it's extremely difficult(because the firmware is so hacked
> > up and may violate spec, just my opinion) for whatever reasons.
>
> Once [0] is applied, we can boot Mainline using ACPI.
>
Good to know.
> > We just made ACPI table version checking more lenient for this platform
> > and would be good to know if we continue to run ACPI on that or will
> > abandon and just use DT.
>
> Which patch are you referring to? If you mean the ACPI v5.0 vs v5.1
> patch authored by Ard, then yes I know, I instigated it's existence
> due to these devices.
>
Yes exactly that one.
> DT will *always* be more enabled than ACPI, so it's advised that you
> use DT for anything useful. ACPI booting is ideal for things like
> installing distros however, since they do not tend to provide DTBs in
> their installers.
>
OK, as along as it gets tested/used in some form, that's fine. I do agree
that DT will be more useful on that platform as it was derived from mobile
based SoC SDM845 rather than solely designed for Laptops and with more
alignment with ACPI spec. The way whole power/clock management is done
with ACPI on this pulls me towards DT ;)
--
Regards,
Sudeep
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630
2019-09-04 16:52 ` Sudeep Holla
@ 2019-09-04 17:07 ` Lee Jones
0 siblings, 0 replies; 7+ messages in thread
From: Lee Jones @ 2019-09-04 17:07 UTC (permalink / raw)
To: Sudeep Holla
Cc: agross, robh+dt, mark.rutland, bjorn.andersson, linux-arm-kernel,
linux-kernel, linux-arm-msm, devicetree
On Wed, 04 Sep 2019, Sudeep Holla wrote:
> On Wed, Sep 04, 2019 at 05:12:47PM +0100, Lee Jones wrote:
> > On Wed, 04 Sep 2019, Sudeep Holla wrote:
> >
> > > On Wed, Sep 04, 2019 at 01:16:06PM +0100, Lee Jones wrote:
> > > > From: Bjorn Andersson <bjorn.andersson@linaro.org>
> > > >
> > > > The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem
> > > > to be similar enough to the SDM845 that we can reuse the sdm845.dtsi.
> > > >
> > > > Supported by this patch is: keyboard, battery monitoring, UFS storage,
> > > > USB host and Bluetooth.
> > > >
> > >
> > > Just curious to know if the idea of booting using ACPI is completely
> > > dropped as it's extremely difficult(because the firmware is so hacked
> > > up and may violate spec, just my opinion) for whatever reasons.
> >
> > Once [0] is applied, we can boot Mainline using ACPI.
> >
>
> Good to know.
>
> > > We just made ACPI table version checking more lenient for this platform
> > > and would be good to know if we continue to run ACPI on that or will
> > > abandon and just use DT.
> >
> > Which patch are you referring to? If you mean the ACPI v5.0 vs v5.1
> > patch authored by Ard, then yes I know, I instigated it's existence
> > due to these devices.
> >
>
> Yes exactly that one.
>
> > DT will *always* be more enabled than ACPI, so it's advised that you
> > use DT for anything useful. ACPI booting is ideal for things like
> > installing distros however, since they do not tend to provide DTBs in
> > their installers.
>
> OK, as along as it gets tested/used in some form, that's fine. I do agree
> that DT will be more useful on that platform as it was derived from mobile
> based SoC SDM845 rather than solely designed for Laptops and with more
> alignment with ACPI spec. The way whole power/clock management is done
> with ACPI on this pulls me towards DT ;)
Exactly. For Power Management on ACPI, we need to re-implement the
"Windows-compatible System Power Management Controller" (PEP), which
considering there isn't any documentation and/or source, would be a
mammoth challenge, if at all possible.
Feel free to provide your {Ack,Review)ed-by for this patch. :)
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630
2019-09-04 12:16 [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630 Lee Jones
2019-09-04 13:44 ` Vinod Koul
2019-09-04 14:12 ` Sudeep Holla
@ 2019-09-05 9:21 ` Sudeep Holla
2 siblings, 0 replies; 7+ messages in thread
From: Sudeep Holla @ 2019-09-05 9:21 UTC (permalink / raw)
To: Lee Jones
Cc: agross, robh+dt, mark.rutland, bjorn.andersson, linux-arm-kernel,
linux-kernel, linux-arm-msm, devicetree, Sudeep Holla
On Wed, Sep 04, 2019 at 01:16:06PM +0100, Lee Jones wrote:
> From: Bjorn Andersson <bjorn.andersson@linaro.org>
>
> The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem
> to be similar enough to the SDM845 that we can reuse the sdm845.dtsi.
>
> Supported by this patch is: keyboard, battery monitoring, UFS storage,
> USB host and Bluetooth.
>
FWIW :),
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
--
Regards,
Sudeep
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2019-09-05 9:21 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-09-04 12:16 [PATCH v3 1/1] arm64: dts: qcom: Add Lenovo Yoga C630 Lee Jones
2019-09-04 13:44 ` Vinod Koul
2019-09-04 14:12 ` Sudeep Holla
2019-09-04 16:12 ` Lee Jones
2019-09-04 16:52 ` Sudeep Holla
2019-09-04 17:07 ` Lee Jones
2019-09-05 9:21 ` Sudeep Holla
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