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[PATCH 0/3] Syscon support for iProc touchscreen driver

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  [PATCH 0/3] Syscon support for iProc touchscreen driver Raveendra Padasalagi <raveendra.padasalagi@broadcom.com> - 2016-02-09 10:10 +0100
    [PATCH 3/3] ARM: dts: use syscon in cygnus touchscreen dt node Raveendra Padasalagi <raveendra.padasalagi@broadcom.com> - 2016-02-09 10:10 +0100

#1329978 — [PATCH 0/3] Syscon support for iProc touchscreen driver

This patchset is based on v4.5-rc3 tag and its tested on
Broadcom Cygnus SoC.

The patches can be fetched from iproc-tsc-v1 branch of
https://github.com/Broadcom/arm64-linux.git

Raveendra Padasalagi (3):
  input: cygnus-update touchscreen dt node document
  input: syscon support in bcm_iproc_tsc driver
  ARM: dts: use syscon in cygnus touchscreen dt node

 .../input/touchscreen/brcm,iproc-touchscreen.txt   |  18 ++-
 arch/arm/boot/dts/bcm-cygnus.dtsi                  |   9 +-
 drivers/input/touchscreen/bcm_iproc_tsc.c          | 122 +++++++++++++++------
 3 files changed, 112 insertions(+), 37 deletions(-)

-- 
1.9.1

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#1329979 — [PATCH 3/3] ARM: dts: use syscon in cygnus touchscreen dt node

In cygnus touch screen controller registers are shared with ADC
and flex timer. Using readl/writel could lead to race condition.
In such cases we need to support register access using syscon
framework based API's. So Added dt changes to use syscon.

Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
---
 arch/arm/boot/dts/bcm-cygnus.dtsi | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
index 3878793..9190224 100644
--- a/arch/arm/boot/dts/bcm-cygnus.dtsi
+++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
@@ -351,9 +351,16 @@
 					<&pinctrl 142 10 1>;
 		};
 
+		ts_adc_syscon: ts_adc_syscon@0x180a6000 {
+			compatible = "syscon";
+			reg = <0x180a6000 0xc30>;
+		};
+
 		touchscreen: tsc@180a6000 {
 			compatible = "brcm,iproc-touchscreen";
-			reg = <0x180a6000 0x40>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ts_syscon = <&ts_adc_syscon>;
 			clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>;
 			clock-names = "tsc_clk";
 			interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
-- 
1.9.1

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