Enable buffered-mode for accel/gyro sensors

During asm330lhh's driver initialization, there is a kernel message
which indicates failure of mapping irq like following:

irq: type mismatch, failed to map hwirq-39 for interrupt-controller@f1010000!

This is because of wrong statement in agl-refhw-common.dtsi and results
disabling buffered-mode of asm330lhh. With this change, the irq can be
correctly mapped and buffered-mode is enabled, i.e. buffer directory
comes up like following:

/sys/devices/platform/soc/e66d0000.i2c/i2c-3/3-006a/iio:device<n>/buffer

* Updates from Scott Murray:
- Changes merged into the main reference hardware patch as
  discussed in Gerrit.
- st,drdy-int-pin declaration added to mark int1 pin as explicitly
  used, matching other users of the driver.
- i2c3 bus speed increased to 400 KHz.  The ASM330LHH is the only
  device on it and is 400 KHz capable, which testing bears out.
  If any of the higher ODRs will be used in buffered mode, this
  seems desirable.

BUG-AGL: SPEC-4098

Signed-off-by: Hiroyuki Ishii <ishii.hiroyuki002@jp.panasonic.com>
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I598b1195a20d9e4611d2e505779ebeebfcbd8757

diff --git a/meta-agl-refhw-gen3/recipes-kernel/linux/files/0001-add-agl-refhw.patch b/meta-agl-refhw-gen3/recipes-kernel/linux/files/0001-add-agl-refhw.patch
index 71c8277..f9c9726 100644 (file)
--- a/meta-agl-refhw-gen3/recipes-kernel/linux/files/0001-add-agl-refhw.patch
+++ b/meta-agl-refhw-gen3/recipes-kernel/linux/files/0001-add-agl-refhw.patch
@@ -4,19 +4,21 @@ Upstream-Status: pending
 
 Signed-off-by: Scott Murray <scott.murray@konsulko.com>
 Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
+[asm330lhh interrupt fix]
+Signed-off-by: Hiroyuki Ishii <ishii.hiroyuki002@jp.panasonic.com>
 
 ---
- arch/arm64/boot/dts/renesas/agl-refhw-common.dtsi | 918 ++++++++++++++++++++++
+ arch/arm64/boot/dts/renesas/agl-refhw-common.dtsi | 919 ++++++++++++++++++++++
  arch/arm64/boot/dts/renesas/r8a7795-agl-refhw.dts | 392 +++++++++
  drivers/media/i2c/adv748x/adv748x-core.c          |  24 +-
- 3 files changed, 1333 insertions(+), 1 deletion(-)
+ 3 files changed, 1334 insertions(+), 1 deletion(-)
 
 diff --git a/arch/arm64/boot/dts/renesas/agl-refhw-common.dtsi b/arch/arm64/boot/dts/renesas/agl-refhw-common.dtsi
 new file mode 100644
-index 000000000000..796ac4c078e0
+index 000000000000..7474ed578c21
 --- /dev/null
 +++ b/arch/arm64/boot/dts/renesas/agl-refhw-common.dtsi
-@@ -0,0 +1,918 @@
+@@ -0,0 +1,919 @@
 +// SPDX-License-Identifier: GPL-2.0
 +/*
 + * Device Tree Source for common parts of AGL Reference Hardware board variants
@@ -447,15 +449,16 @@ index 000000000000..796ac4c078e0
 +
 +      status = "okay";
 +
-+      clock-frequency = <100000>;
++      clock-frequency = <400000>;
 +
 +      asm330lhh@6a {
 +              compatible = "st,asm330lhh";
 +              reg = <0x6a>;
 +
 +              interrupt-names = "int1", "int2";
-+              interrupts = <&gpio6 23 IRQ_TYPE_EDGE_RISING>,
-+                           <&gpio2 6 IRQ_TYPE_EDGE_RISING>;
++              interrupts-extended = <&gpio6 23 IRQ_TYPE_EDGE_RISING>,
++                                    <&gpio2 6 IRQ_TYPE_EDGE_RISING>;
++              st,drdy-int-pin = <1>;
 +      };
 +};
 +