Proxmox-Port/linux-loongson
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson synced 2025-09-04 18:49:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

arm64: dts: qcom: sa8540p-ride: add i2c nodes

Browse Source 
Add the necessary nodes in order to get i2c0, i2c1, i2c12, i2c15, and
i2c18 functioning on the automotive board and exposed to userspace.

This work was derived from various patches that Qualcomm delivered
to Red Hat in a downstream kernel. This change was validated by using
i2c-tools 4.3.3 on CentOS Stream 9:

[root@localhost ~]# i2cdetect -l
i2c-0  i2c             Geni-I2C                                I2C adapter
i2c-1  i2c             Geni-I2C                                I2C adapter
i2c-12 i2c             Geni-I2C                                I2C adapter
i2c-15 i2c             Geni-I2C                                I2C adapter
i2c-18 i2c             Geni-I2C                                I2C adapter

[root@localhost ~]# i2cdetect -a -y 15
Warning: Can't use SMBus Quick Write command, will skip some addresses
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:
10:
20:
30: -- -- -- -- -- -- -- --
40:
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60:
70:

Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Shazad Hussain <quic_shazhuss@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230103182229.37169-9-bmasney@redhat.com
This commit is contained in:
Brian Masney 2023-01-03 13:22:27 -05:00 committed by Bjorn Andersson
parent 3d256a90b3
commit e073899ec3
1 changed files with 83 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

83
arch/arm64/boot/dts/qcom/sa8540p-ride.dts
View File

@ -17,6 +17,11 @@ / {
compatible = "qcom,sa8540p-ride", "qcom,sa8540p";
aliases {
i2c0 = &i2c0;
i2c1 = &i2c1;
i2c12 = &i2c12;
i2c15 = &i2c15;
i2c18 = &i2c18;
serial0 = &uart17;
};
@ -146,6 +151,41 @@ vreg_l8g: ldo8 {
};
};
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_default>;
status = "okay";
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_default>;
status = "okay";
};
&i2c12 {
pinctrl-names = "default";
pinctrl-0 = <&i2c12_default>;
status = "okay";
};
&i2c15 {
pinctrl-names = "default";
pinctrl-0 = <&i2c15_default>;
status = "okay";
};
&i2c18 {
pinctrl-names = "default";
pinctrl-0 = <&i2c18_default>;
status = "okay";
};
&pcie2a {
ranges = <0x01000000 0x0 0x3c200000 0x0 0x3c200000 0x0 0x100000>,
<0x02000000 0x0 0x3c300000 0x0 0x3c300000 0x0 0x1d00000>,
@ -188,6 +228,14 @@ &pcie3a_phy {
status = "okay";
};
&qup0 {
status = "okay";
};
&qup1 {
status = "okay";
};
&qup2 {
status = "okay";
};
@ -268,6 +316,41 @@ &xo_board_clk {
/* PINCTRL */
&tlmm {
i2c0_default: i2c0-default-state {
pins = "gpio135", "gpio136";
function = "qup15";
drive-strength = <2>;
bias-pull-up;
};
i2c1_default: i2c1-default-state {
pins = "gpio158", "gpio159";
function = "qup15";
drive-strength = <2>;
bias-pull-up;
};
i2c12_default: i2c12-default-state {
pins = "gpio0", "gpio1";
function = "qup15";
drive-strength = <2>;
bias-pull-up;
};
i2c15_default: i2c15-default-state {
pins = "gpio36", "gpio37";
function = "qup15";
drive-strength = <2>;
bias-pull-up;
};
i2c18_default: i2c18-default-state {
pins = "gpio66", "gpio67";
function = "qup18";
drive-strength = <2>;
bias-pull-up;
};
pcie2a_default: pcie2a-default-state {
perst-pins {
pins = "gpio143";