diff mbox series

[2/2] ARM: msm8960: Add Samsung Galaxy Express support

Message ID 20220808234723.5184-2-guptarud@gmail.com
State New
Headers show
Series None | expand

Commit Message

Rudraksha Gupta Aug. 8, 2022, 11:47 p.m. UTC 
This adds a very basic device tree file for the Samsung Galaxy Express
SGH-I437. Currently, the following things work: UART, eMMC, SD Card, and
USB.

Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
---
 .../dts/qcom-msm8960-samsung-expressatt.dts   | 337 ++++++++++++++++++
 arch/arm/boot/dts/qcom-msm8960.dtsi           |   2 +-
 2 files changed, 338 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/qcom-msm8960-samsung-expressatt.dts

Comments

Rudraksha Gupta Aug. 9, 2022, 11:57 p.m. UTC | #1 
> OK, I'll abandon the review. This file is really not matching anything

 > in the upstream. Please start your work from a proper upstreamed, recent

 > board.

I based it off of qcom-msm8960-cdp.dts. If there is a dts that you would 
like

me to model off of, please link it to me. Otherwise, I will find another 
recent

dts and model off of that
Krzysztof Kozlowski Aug. 10, 2022, 7:47 a.m. UTC | #2 
On 10/08/2022 02:57, Rudraksha Gupta wrote:
>  > OK, I'll abandon the review. This file is really not matching anything
> 
>  > in the upstream. Please start your work from a proper upstreamed, recent
> 
>  > board.
> 
> I based it off of qcom-msm8960-cdp.dts. If there is a dts that you would 
> like
> 
> me to model off of, please link it to me. Otherwise, I will find another 
> recent
> 
> dts and model off of that
>
Bjorn Andersson Aug. 29, 2022, 9:54 p.m. UTC | #3 
On Wed, Aug 10, 2022 at 10:51:51PM -0400, Rudraksha Gupta wrote:
> > Clock and dts patches goes through two different paths towards mainline,
> 
> > so they should be separated.
> 
> Gotcha, thanks. I will do that.
> 
> 
> > This breaks compatibility with existing DTB files.
> 
> > What you probably want is to make sure that any clocks with parent name
> 
> > of "cxo", should have a .fw_name = "cxo", then you can make a
> 
> > phandle-based reference in DT and these global names doesn't matter (and
> 
> > in the end we can remove this board_clk from the driver).
> 
> Ah, I see. If I understand correctly, it should be something like this,
> right?
> https://github.com/torvalds/linux/blob/master/drivers/clk/qcom/gcc-msm8996.c#L169-L172

Correct, this will try to find the clock by clock-names of "cxo" and if
not found fall back to do a lookup globally just on the name "xo_board".

So it seems making .name "cxo_board" should handle both cases nicely.

Regards,
Bjorn
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/qcom-msm8960-samsung-expressatt.dts b/arch/arm/boot/dts/qcom-msm8960-samsung-expressatt.dts
new file mode 100644
index 000000000000..cf557f0c9a59
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-msm8960-samsung-expressatt.dts
@@ -0,0 +1,337 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+#include <dt-bindings/input/input.h>
+#include "qcom-msm8960.dtsi"
+
+/ {
+	model = "Samsung Galaxy S3 SGH-I437";
+	compatible = "samsung,expressatt", "qcom,msm8960";
+
+	aliases {
+		serial0 = &gsbi5_serial;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+	};
+
+	soc {
+		gsbi@16400000 {
+			status = "ok";
+			qcom,mode = <GSBI_PROT_I2C_UART>;
+			serial@16440000 {
+				status = "ok";
+			};
+		};
+
+		amba {
+			/* eMMC */
+			sdcc1: mmc@12400000 {
+				status = "okay";
+				vmmc-supply = <&pm8921_l5>;
+			};
+
+			/* External micro SD card */
+			sdcc3: mmc@12180000 {
+				status = "okay";
+				vmmc-supply = <&pm8921_l6>;
+				vqmmc-supply = <&pm8921_l7>;
+			};
+		};
+
+		rpm@108000 {
+			regulators {
+				compatible = "qcom,rpm-pm8921-regulators";
+				vin_lvs1_3_6-supply = <&pm8921_s4>;
+				vin_lvs2-supply = <&pm8921_s4>;
+				vin_lvs4_5_7-supply = <&pm8921_s4>;
+				vdd_ncp-supply = <&pm8921_l6>;
+				vdd_l1_l2_l12_l18-supply = <&pm8921_s4>;
+				vdd_l21_l23_l29-supply = <&pm8921_s8>;
+				vdd_l24-supply = <&pm8921_s1>;
+				vdd_l25-supply = <&pm8921_s1>;
+				vdd_l27-supply = <&pm8921_s7>;
+				vdd_l28-supply = <&pm8921_s7>;
+
+				/* Buck SMPS */
+				pm8921_s1: s1 {
+					regulator-always-on;
+					regulator-min-microvolt = <1225000>;
+					regulator-max-microvolt = <1225000>;
+					qcom,switch-mode-frequency = <3200000>;
+					bias-pull-down;
+				};
+
+				pm8921_s2: s2 {
+					regulator-min-microvolt = <1300000>;
+					regulator-max-microvolt = <1300000>;
+					qcom,switch-mode-frequency = <1600000>;
+					bias-pull-down;
+				};
+
+				pm8921_s3: s3 {
+					regulator-min-microvolt = <500000>;
+					regulator-max-microvolt = <1150000>;
+					qcom,switch-mode-frequency = <4800000>;
+					bias-pull-down;
+				};
+
+				pm8921_s4: s4 {
+					regulator-always-on;
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,switch-mode-frequency = <1600000>;
+					bias-pull-down;
+					qcom,force-mode = <QCOM_RPM_FORCE_MODE_AUTO>;
+				};
+
+				pm8921_s7: s7 {
+					regulator-min-microvolt = <1150000>;
+					regulator-max-microvolt = <1150000>;
+					qcom,switch-mode-frequency = <3200000>;
+					bias-pull-down;
+				};
+
+				pm8921_s8: s8 {
+					regulator-always-on;
+					regulator-min-microvolt = <2050000>;
+					regulator-max-microvolt = <2050000>;
+					qcom,switch-mode-frequency = <1600000>;
+					bias-pull-down;
+				};
+
+				/* PMOS LDO */
+				pm8921_l1: l1 {
+					regulator-always-on;
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+					bias-pull-down;
+				};
+
+				pm8921_l2: l2 {
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					bias-pull-down;
+				};
+
+				pm8921_l3: l3 {
+					regulator-min-microvolt = <3075000>;
+					regulator-max-microvolt = <3300000>;
+					bias-pull-down;
+				};
+
+				pm8921_l4: l4 {
+					regulator-always-on;
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					bias-pull-down;
+				};
+
+				pm8921_l5: l5 {
+					regulator-min-microvolt = <2950000>;
+					regulator-max-microvolt = <2950000>;
+					bias-pull-down;
+				};
+
+				pm8921_l6: l6 {
+					regulator-min-microvolt = <2950000>;
+					regulator-max-microvolt = <2950000>;
+					bias-pull-down;
+				};
+
+				pm8921_l7: l7 {
+					regulator-always-on;
+					regulator-min-microvolt = <1850000>;
+					regulator-max-microvolt = <2950000>;
+					bias-pull-down;
+				};
+
+				pm8921_l8: l8 {
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3100000>;
+					bias-pull-down;
+				};
+
+				pm8921_l9: l9 {
+					regulator-min-microvolt = <2850000>;
+					regulator-max-microvolt = <2850000>;
+					bias-pull-down;
+				};
+
+				pm8921_l10: l10 {
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+					bias-pull-down;
+				};
+
+				pm8921_l11: l11 {
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <3300000>;
+					bias-pull-down;
+				};
+
+				pm8921_l12: l12 {
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					bias-pull-down;
+				};
+
+				pm8921_l14: l14 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					bias-pull-down;
+				};
+
+				pm8921_l15: l15 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <2950000>;
+					bias-pull-down;
+				};
+
+				pm8921_l16: l16 {
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <3000000>;
+					bias-pull-down;
+				};
+
+				pm8921_l17: l17 {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <3300000>;
+					bias-pull-down;
+				};
+
+				pm8921_l18: l18 {
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1500000>;
+					bias-pull-down;
+				};
+
+				pm8921_l21: l21 {
+					regulator-min-microvolt = <1900000>;
+					regulator-max-microvolt = <1900000>;
+					bias-pull-down;
+				};
+
+				pm8921_l22: l22 {
+					regulator-min-microvolt = <2750000>;
+					regulator-max-microvolt = <2750000>;
+					bias-pull-down;
+				};
+
+				pm8921_l23: l23 {
+					regulator-always-on;
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					bias-pull-down;
+				};
+
+				pm8921_l24: l24 {
+					regulator-min-microvolt = <750000>;
+					regulator-max-microvolt = <1150000>;
+					bias-pull-down;
+				};
+
+				pm8921_l25: l25 {
+					regulator-always-on;
+					regulator-min-microvolt = <1225000>;
+					regulator-max-microvolt = <1225000>;
+					bias-pull-down;
+				};
+
+				/* Low Voltage Switch */
+				pm8921_lvs1: lvs1 {
+					bias-pull-down;
+				};
+
+				pm8921_lvs2: lvs2 {
+					bias-pull-down;
+				};
+
+				pm8921_lvs3: lvs3 {
+					bias-pull-down;
+				};
+
+				pm8921_lvs4: lvs4 {
+					bias-pull-down;
+				};
+
+				pm8921_lvs5: lvs5 {
+					bias-pull-down;
+				};
+
+				pm8921_lvs6: lvs6 {
+					bias-pull-down;
+				};
+
+				pm8921_lvs7: lvs7 {
+					bias-pull-down;
+				};
+
+				pm8921_ncp: ncp {
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					qcom,switch-mode-frequency = <1600000>;
+				};
+			};
+		};
+
+		gsbi@16000000 {
+			status = "ok";
+			qcom,mode = <GSBI_PROT_SPI>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi1_default>;
+			spi@16080000 {
+				status = "ok";
+			};
+		};
+
+		pinctrl@800000 {
+			spi1_default: spi1_default {
+				mux {
+					pins = "gpio6", "gpio7", "gpio9";
+					function = "gsbi1";
+				};
+
+				mosi {
+					pins = "gpio6";
+					drive-strength = <12>;
+					bias-disable;
+				};
+
+				miso {
+					pins = "gpio7";
+					drive-strength = <12>;
+					bias-disable;
+				};
+
+				cs {
+					pins = "gpio8";
+					drive-strength = <12>;
+					bias-disable;
+					output-low;
+				};
+
+				clk {
+					pins = "gpio9";
+					drive-strength = <12>;
+					bias-disable;
+				};
+			};
+		};
+
+		usb@12500000 {
+			status = "okay";
+			dr_mode = "otg";
+
+			ulpi {
+				phy {
+					v3p3-supply = <&pm8921_l3>;
+					v1p8-supply = <&pm8921_l4>;
+				};
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/qcom-msm8960.dtsi b/arch/arm/boot/dts/qcom-msm8960.dtsi
index 0e099aa7c889..2ed969785b78 100644
--- a/arch/arm/boot/dts/qcom-msm8960.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8960.dtsi
@@ -58,7 +58,7 @@  cpu-pmu {
 	};
 
 	clocks {
-		cxo_board {
+		cxo_board: cxo-board {
 			compatible = "fixed-clock";
 			#clock-cells = <0>;
 			clock-frequency = <19200000>;