[PATCH 0/4] arm: dts: qcom-apq8064: add smem and hwspinlock support

[PATCH 0/4] arm: dts: qcom-apq8064: add smem and hwspinlock support

[Srinivas Kandagatla]

Hi Andy, 

Here are 3 patches for smem/hwspinlock which I have tested with QDSP on IFC6410.
Also a fix from Ivan which I think can be taken aswell.

Thanks,
srini

Ivan T. Ivanov (1):
  ARM: dts: qcom: apq8064-ifc6410 Use hardware flow control for GSBI6

Srinivas Kandagatla (3):
  arm: dts: apq8064: add shared memory into dt reserved-memory
  arm: dts: apq8064: add hwspinlock nodes
  arm: dts: apq8064: add shared memory node

 arch/arm/boot/dts/qcom-apq8064-ifc6410.dts |  2 +-
 arch/arm/boot/dts/qcom-apq8064.dtsi        | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

-- 
1.9.1

[PATCH 1/4] ARM: dts: qcom: apq8064-ifc6410 Use hardware flow control for GSBI6

[Srinivas Kandagatla]

From: "Ivan T. Ivanov" <ivan.ivanov@linaro.org>

GSBI6 UART module is connected to BT chip, which uses
hardware flow control lines. Enable them on SoC side.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
---
 arch/arm/boot/dts/qcom-apq8064-ifc6410.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
index 11ac608..80c6695 100644
--- a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
@@ -164,7 +164,7 @@
 
 		gsbi at 16500000 {
 			status = "ok";
-			qcom,mode = <GSBI_PROT_I2C_UART>;
+			qcom,mode = <GSBI_PROT_UART_W_FC>;
 
 			serial at 16540000 {
 				status = "ok";
-- 
1.9.1

[PATCH 1/4] ARM: dts: qcom: apq8064-ifc6410 Use hardware flow control for GSBI6

[Andy Gross]

On Fri, Dec 11, 2015 at 06:29:58PM +0000, Srinivas Kandagatla wrote:
> From: "Ivan T. Ivanov" <ivan.ivanov@linaro.org>
> 
> GSBI6 UART module is connected to BT chip, which uses
> hardware flow control lines. Enable them on SoC side.
> 
> Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>

Looks fine to me. Thanks for the patch.

[PATCH 2/4] arm: dts: apq8064: add shared memory into dt reserved-memory

[Srinivas Kandagatla]

This patch adds the shared memory in the Device tree reserved memory
list so that kernel would not map it as normal memory.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 arch/arm/boot/dts/qcom-apq8064.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index a4c1762..09f0e27 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -11,6 +11,17 @@
 	compatible = "qcom,apq8064";
 	interrupt-parent = <&intc>;
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		smem:smem at 80000000 {
+			reg = <0x80000000 0x200000>;
+			no-map;
+		};
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
-- 
1.9.1

[PATCH 2/4] arm: dts: apq8064: add shared memory into dt reserved-memory

[Andy Gross]

On Fri, Dec 11, 2015 at 06:31:47PM +0000, Srinivas Kandagatla wrote:
> This patch adds the shared memory in the Device tree reserved memory
> list so that kernel would not map it as normal memory.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

Looks fine to me.

[PATCH 3/4] arm: dts: apq8064: add hwspinlock nodes

[Srinivas Kandagatla]

This patch adds support hwspinlock devicetree node.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 arch/arm/boot/dts/qcom-apq8064.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index 09f0e27..829028a 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -670,5 +670,17 @@
 			compatible = "qcom,tcsr-apq8064", "syscon";
 			reg = <0x1a400000 0x100>;
 		};
+
+		sfpb_syscon:syscon at 01200600 {
+			compatible = "syscon";
+			reg = <0x01200600 0x100>;
+		};
+
+		sfpb_mutex: hwlock {
+			compatible = "qcom,sfpb-mutex";
+			syscon = <&sfpb_syscon 0x4 0x4>;
+			#hwlock-cells = <1>;
+		};
+
 	};
 };
-- 
1.9.1

[PATCH 3/4] arm: dts: apq8064: add hwspinlock nodes

[Andy Gross]

On Fri, Dec 11, 2015 at 06:32:11PM +0000, Srinivas Kandagatla wrote:
> This patch adds support hwspinlock devicetree node.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>


Looks fine to me.  Thanks for the patch.

[PATCH 4/4] arm: dts: apq8064: add shared memory node

[Srinivas Kandagatla]

This patch adds support to qcom,smem device.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 arch/arm/boot/dts/qcom-apq8064.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index 829028a..40dd6b4 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -682,5 +682,11 @@
 			#hwlock-cells = <1>;
 		};
 
+		smem {
+			compatible = "qcom,smem";
+			memory-region = <&smem>;
+			hwlocks = <&sfpb_mutex 3>;
+		};
+
 	};
 };
-- 
1.9.1

[PATCH 4/4] arm: dts: apq8064: add shared memory node

[Andy Gross]

On Fri, Dec 11, 2015 at 06:33:09PM +0000, Srinivas Kandagatla wrote:
> This patch adds support to qcom,smem device.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  arch/arm/boot/dts/qcom-apq8064.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
> index 829028a..40dd6b4 100644
> --- a/arch/arm/boot/dts/qcom-apq8064.dtsi
> +++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
> @@ -682,5 +682,11 @@
>  			#hwlock-cells = <1>;
>  		};
>  
> +		smem {
> +			compatible = "qcom,smem";
> +			memory-region = <&smem>;
> +			hwlocks = <&sfpb_mutex 3>;
> +		};
> +

smem needs to be outside the soc as there is no reg entry.

[PATCH 0/4] arm: dts: qcom-apq8064: add smem and hwspinlock support

[Bjorn Andersson]

On Fri 11 Dec 10:26 PST 2015, Srinivas Kandagatla wrote:

> Hi Andy, 
> 
> Here are 3 patches for smem/hwspinlock which I have tested with QDSP on IFC6410.
> Also a fix from Ivan which I think can be taken aswell.
> 

As far as I can tell my patch for adding smem and hwmutex are already in
linux-next, via Andy's tree. Am I missing something?

Regards,
Bjorn

[PATCH 0/4] arm: dts: qcom-apq8064: add smem and hwspinlock support

[Srinivas Kandagatla]

On 12/12/15 00:22, Bjorn Andersson wrote:
> On Fri 11 Dec 10:26 PST 2015, Srinivas Kandagatla wrote:
>
>> Hi Andy,
>>
>> Here are 3 patches for smem/hwspinlock which I have tested with QDSP on IFC6410.
>> Also a fix from Ivan which I think can be taken aswell.
>>
>
> As far as I can tell my patch for adding smem and hwmutex are already in
> linux-next, via Andy's tree. Am I missing something?
My bad, I should have checked linux-next before sending..
--srini
>
> Regards,
> Bjorn
>