* [PATCH 0/4] ARM: amlogic: add i2c support to Amlogic's gxbb family
@ 2016-09-14 10:06 Jerome Brunet
2016-09-14 10:06 ` [PATCH 1/4] clk: gxbb: expose i2c clocks Jerome Brunet
[not found] ` <1473847568-20163-1-git-send-email-jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
0 siblings, 2 replies; 6+ messages in thread
From: Jerome Brunet @ 2016-09-14 10:06 UTC (permalink / raw)
To: Kevin Hilman, Carlo Caione, Stephen Boyd, devicetree
Cc: Jerome Brunet, linux-amlogic, linux-arm-kernel, Neil Armstrong,
linux-clk
Add support for the meson i2c controller found on the gxbb SoC family
This patchset adds 1 i2c in the AO domain and 3 in the EE domain (A,B,C).
There is 1 last i2c in the EE domain (D) but it is actually not connected
to the pad of the SoC, so there is no point in adding it here.
Patches for the i2c [0] driver and pinctrl [1] have been sent in
dedicated series
[0]: http://lkml.kernel.org/r/1473846557-18123-1-git-send-email-jbrunet@baylibre.com
[1]: http://lkml.kernel.org/r/1473846328-17339-1-git-send-email-jbrunet@baylibre.com
Jerome Brunet (3):
clk: gxbb: expose i2c clocks
ARM64: dts: meson-gxbb: add pins for I2C
ARM64: dts: gxbb: add i2c bus
Neil Armstrong (1):
ARM64: dts: meson-gxbb: add I2C nodes
.../arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 6 ++
arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts | 6 ++
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 72 ++++++++++++++++++++++
drivers/clk/meson/gxbb.h | 4 +-
include/dt-bindings/clock/gxbb-clkc.h | 2 +
5 files changed, 88 insertions(+), 2 deletions(-)
--
2.7.4
^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH 1/4] clk: gxbb: expose i2c clocks
2016-09-14 10:06 [PATCH 0/4] ARM: amlogic: add i2c support to Amlogic's gxbb family Jerome Brunet
@ 2016-09-14 10:06 ` Jerome Brunet
2016-09-14 18:25 ` Stephen Boyd
[not found] ` <1473847568-20163-1-git-send-email-jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
1 sibling, 1 reply; 6+ messages in thread
From: Jerome Brunet @ 2016-09-14 10:06 UTC (permalink / raw)
To: Kevin Hilman, Carlo Caione, Stephen Boyd, devicetree
Cc: Jerome Brunet, linux-amlogic, linux-arm-kernel, Neil Armstrong,
linux-clk
I2C and AO_I2C clocks are needed for the i2c driver, expose to DT
(and comment out in clk driver)
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
drivers/clk/meson/gxbb.h | 4 ++--
include/dt-bindings/clock/gxbb-clkc.h | 2 ++
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/meson/gxbb.h b/drivers/clk/meson/gxbb.h
index 044fc44e9144..0252939ba58f 100644
--- a/drivers/clk/meson/gxbb.h
+++ b/drivers/clk/meson/gxbb.h
@@ -190,7 +190,7 @@
#define CLKID_PL301 19
#define CLKID_PERIPHS 20
#define CLKID_SPICC 21
-#define CLKID_I2C 22
+/* CLKID_I2C */
#define CLKID_SAR_ADC 23
#define CLKID_SMART_CARD 24
#define CLKID_RNG0 25
@@ -261,7 +261,7 @@
#define CLKID_AO_AHB_SRAM 90
#define CLKID_AO_AHB_BUS 91
#define CLKID_AO_IFACE 92
-#define CLKID_AO_I2C 93
+/* CLKID_AO_I2C */
/* CLKID_SD_EMMC_A */
/* CLKID_SD_EMMC_B */
/* CLKID_SD_EMMC_C */
diff --git a/include/dt-bindings/clock/gxbb-clkc.h b/include/dt-bindings/clock/gxbb-clkc.h
index 743c45b40361..baade6f429d0 100644
--- a/include/dt-bindings/clock/gxbb-clkc.h
+++ b/include/dt-bindings/clock/gxbb-clkc.h
@@ -13,12 +13,14 @@
#define CLKID_CLK81 12
#define CLKID_MPLL2 15
#define CLKID_SPI 34
+#define CLKID_I2C 22
#define CLKID_ETH 36
#define CLKID_USB0 50
#define CLKID_USB1 51
#define CLKID_USB 55
#define CLKID_USB1_DDR_BRIDGE 64
#define CLKID_USB0_DDR_BRIDGE 65
+#define CLKID_AO_I2C 93
#define CLKID_SD_EMMC_A 94
#define CLKID_SD_EMMC_B 95
#define CLKID_SD_EMMC_C 96
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH 1/4] clk: gxbb: expose i2c clocks
2016-09-14 10:06 ` [PATCH 1/4] clk: gxbb: expose i2c clocks Jerome Brunet
@ 2016-09-14 18:25 ` Stephen Boyd
0 siblings, 0 replies; 6+ messages in thread
From: Stephen Boyd @ 2016-09-14 18:25 UTC (permalink / raw)
To: Jerome Brunet
Cc: Kevin Hilman, Carlo Caione, devicetree, linux-amlogic,
linux-arm-kernel, Neil Armstrong, linux-clk
On 09/14, Jerome Brunet wrote:
> I2C and AO_I2C clocks are needed for the i2c driver, expose to DT
> (and comment out in clk driver)
>
> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
> ---
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <1473847568-20163-1-git-send-email-jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>]
* [PATCH 2/4] ARM64: dts: meson-gxbb: add pins for I2C
[not found] ` <1473847568-20163-1-git-send-email-jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
@ 2016-09-14 10:06 ` Jerome Brunet
2016-09-14 10:06 ` [PATCH 3/4] ARM64: dts: meson-gxbb: add I2C nodes Jerome Brunet
2016-09-14 10:06 ` [PATCH 4/4] ARM64: dts: gxbb: add i2c bus Jerome Brunet
2 siblings, 0 replies; 6+ messages in thread
From: Jerome Brunet @ 2016-09-14 10:06 UTC (permalink / raw)
To: Kevin Hilman, Carlo Caione, devicetree-u79uwXL29TY76Z2rM5mHXA
Cc: Jerome Brunet, linux-amlogic-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Neil Armstrong
Signed-off-by: Jerome Brunet <jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
---
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 32 +++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 9506597fcc1c..75aca5013e61 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -293,6 +293,14 @@
};
};
+ i2c_ao_pins: i2c_ao {
+ mux {
+ groups = "i2c_sck_ao",
+ "i2c_sda_ao";
+ function = "i2c_ao";
+ };
+ };
+
pwm_ao_a_3_pins: pwm_ao_a_3 {
mux {
groups = "pwm_ao_a_3";
@@ -455,6 +463,30 @@
};
};
+ i2c_a_pins: i2c_a {
+ mux {
+ groups = "i2c_sck_a",
+ "i2c_sda_a";
+ function = "i2c_a";
+ };
+ };
+
+ i2c_b_pins: i2c_b {
+ mux {
+ groups = "i2c_sck_b",
+ "i2c_sda_b";
+ function = "i2c_b";
+ };
+ };
+
+ i2c_c_pins: i2c_c {
+ mux {
+ groups = "i2c_sck_c",
+ "i2c_sda_c";
+ function = "i2c_c";
+ };
+ };
+
eth_pins: eth_c {
mux {
groups = "eth_mdio",
--
2.7.4
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^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 3/4] ARM64: dts: meson-gxbb: add I2C nodes
[not found] ` <1473847568-20163-1-git-send-email-jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2016-09-14 10:06 ` [PATCH 2/4] ARM64: dts: meson-gxbb: add pins for I2C Jerome Brunet
@ 2016-09-14 10:06 ` Jerome Brunet
2016-09-14 10:06 ` [PATCH 4/4] ARM64: dts: gxbb: add i2c bus Jerome Brunet
2 siblings, 0 replies; 6+ messages in thread
From: Jerome Brunet @ 2016-09-14 10:06 UTC (permalink / raw)
To: Kevin Hilman, Carlo Caione, devicetree-u79uwXL29TY76Z2rM5mHXA
Cc: Neil Armstrong, linux-amlogic-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Jerome Brunet
From: Neil Armstrong <narmstrong-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
Signed-off-by: Neil Armstrong <narmstrong-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
Signed-off-by: Jerome Brunet <jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
---
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 40 +++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 75aca5013e61..4aa59dc2beb9 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -242,6 +242,36 @@
clocks = <&clkc CLKID_SPI>;
status = "disabled";
};
+
+ i2c_A: i2c@8500 {
+ compatible = "amlogic,meson-gxbb-i2c";
+ reg = <0x0 0x08500 0x0 0x20>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_I2C>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c_B: i2c@87c0 {
+ compatible = "amlogic,meson-gxbb-i2c";
+ reg = <0x0 0x087c0 0x0 0x20>;
+ interrupts = <GIC_SPI 214 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_I2C>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c_C: i2c@87e0 {
+ compatible = "amlogic,meson-gxbb-i2c";
+ reg = <0x0 0x087e0 0x0 0x20>;
+ interrupts = <GIC_SPI 215 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_I2C>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};
gic: interrupt-controller@c4301000 {
@@ -358,6 +388,16 @@
#pwm-cells = <3>;
status = "disabled";
};
+
+ i2c_AO: i2c@500 {
+ compatible = "amlogic,meson-gxbb-i2c";
+ reg = <0x0 0x500 0x0 0x20>;
+ interrupts = <GIC_SPI 195 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_AO_I2C>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};
periphs: periphs@c8834000 {
--
2.7.4
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^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 4/4] ARM64: dts: gxbb: add i2c bus
[not found] ` <1473847568-20163-1-git-send-email-jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2016-09-14 10:06 ` [PATCH 2/4] ARM64: dts: meson-gxbb: add pins for I2C Jerome Brunet
2016-09-14 10:06 ` [PATCH 3/4] ARM64: dts: meson-gxbb: add I2C nodes Jerome Brunet
@ 2016-09-14 10:06 ` Jerome Brunet
2 siblings, 0 replies; 6+ messages in thread
From: Jerome Brunet @ 2016-09-14 10:06 UTC (permalink / raw)
To: Kevin Hilman, Carlo Caione, devicetree-u79uwXL29TY76Z2rM5mHXA
Cc: Jerome Brunet, linux-amlogic-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Neil Armstrong
Add nodes for i2c bus on gxbb based platforms.
On the OdroidC2 (I2C A) and P200 (I2C B), the pull-up resistor are
present directly on the board. This indicates that these pins are
dedicated to i2c.
Signed-off-by: Jerome Brunet <jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
---
arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 6 ++++++
arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts | 6 ++++++
2 files changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index 4f1554a27422..c6d78d3a018f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -180,3 +180,9 @@
vmmc-supply = <&vcc3v3>;
vqmmc-supply = <&vcc1v8>;
};
+
+&i2c_A {
+ status = "okay";
+ pinctrl-0 = <&i2c_a_pins>;
+ pinctrl-names = "default";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
index 62979076e250..03e3d76626dd 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
@@ -50,3 +50,9 @@
compatible = "amlogic,p200", "amlogic,meson-gxbb";
model = "Amlogic Meson GXBB P200 Development Board";
};
+
+&i2c_B {
+ status = "okay";
+ pinctrl-0 = <&i2c_b_pins>;
+ pinctrl-names = "default";
+};
--
2.7.4
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^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-09-14 18:25 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2016-09-14 10:06 [PATCH 0/4] ARM: amlogic: add i2c support to Amlogic's gxbb family Jerome Brunet
2016-09-14 10:06 ` [PATCH 1/4] clk: gxbb: expose i2c clocks Jerome Brunet
2016-09-14 18:25 ` Stephen Boyd
[not found] ` <1473847568-20163-1-git-send-email-jbrunet-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2016-09-14 10:06 ` [PATCH 2/4] ARM64: dts: meson-gxbb: add pins for I2C Jerome Brunet
2016-09-14 10:06 ` [PATCH 3/4] ARM64: dts: meson-gxbb: add I2C nodes Jerome Brunet
2016-09-14 10:06 ` [PATCH 4/4] ARM64: dts: gxbb: add i2c bus Jerome Brunet
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