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2020-10-06dt-bindings: hwlock: omap: Fix warnings with k3.yamlSuman Anna1-2/+2
Update the AM65x HwSpinlock example to fix couple of warnings that started showing up after the conversion of K3 bindings to YAML format in commit 66e06509aa37 ("dt-bindings: arm: ti: Convert K3 board/soc bindings to DT schema"). compatible: ['ti,am654'] is not valid under any of the given schemas (Possible causes of the failure): compatible: ['ti,am654'] is too short compatible:0: 'ti,am654' is not one of ['ti,am654-evm'] Also, fix one of the node names while at this. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Suman Anna <s-anna@ti.com> Link: https://lore.kernel.org/r/20200928225155.12432-1-s-anna@ti.com Signed-off-by: Rob Herring <robh@kernel.org>
2020-09-09dt-bindings: hwlock: omap: Convert binding to YAMLSuman Anna2-41/+76
Convert the current OMAP hwspinlock binding from text format to YAML format/DT schema, and delete the legacy text binding file. The new YAML binding conversion is a slightly updated version compared to the original. The legacy "ti,hwmods" property is now obsolete and is dropped altogether, and the K3 example is updated to showcase the actual dts node usage. Signed-off-by: Suman Anna <s-anna@ti.com> Link: https://lore.kernel.org/r/20200828041447.5900-1-s-anna@ti.com Signed-off-by: Rob Herring <robh@kernel.org>
2020-08-05dt-bindings: hwlock: qcom: Remove invalid bindingBjorn Andersson1-24/+1
The Qualcomm hwlock is described in DeviceTree either directly on the mmio bus or split between a syscon and a mutex node, but as noted in [1] the latter is not valid DT, so remove any traces of this from the binding. [1] https://lore.kernel.org/r/CAL_JsqLa9GBtbgN6aL7AQ=A6V-YRtPgYqh6XgM2kpx532+r4Gg@mail.gmail.com/ Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200729004757.1901107-1-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-07-14dt-bindings: hwlock: qcom: Allow device on mmio busBjorn Andersson1-1/+15
In modern Qualcomm platforms the mutex region of the TCSR is forked off into its own block, all with a offset of 0 and stride of 4096, and in some of these platforms no other registers in this region is accessed from Linux. Update the binding to allow the hardware block to be described directly on the mmio bus, in addition to allowing the existing syscon based definition for backwards compatibility. Reviewed-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200622075956.171058-3-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-07-14dt-bindings: hwlock: qcom: Migrate binding to YAMLBjorn Andersson2-39/+51
Migrate the Qualcomm TCSR mutex binding to YAML to allow validation. Reviewed-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200622075956.171058-2-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-10-14dt-bindings: hwlock: Convert stm32 hwspinlock bindings to json-schemaBenjamin Gaignard2-23/+50
Convert the STM32 hwspinlock binding to DT schema format using json-schema Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-06-29dt-bindings: hwlock: Update OMAP binding for TI K3 SoCsSuman Anna1-5/+20
The TI K3 AM65x and J721E family of SoCs have a HwSpinlock IP that is similar to the existing HwSpinlock IP present in OMAP architecture based SoCs with minor differences. Update the existing OMAP HwSpinlock binding for this IP on TI K3 AM65x and J721E SoCs. The same compatible from AM65x SoCs is reused for J721E SoCs. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-12-05dt-bindings: hwlock: Document STM32 hwspinlock bindingsBenjamin Gaignard1-0/+23
Add bindings for STM32 hardware spinlock device Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-05-24DT: hwspinlock: Add binding documentation for Spreadtrum hwspinlockBaolin Wang1-0/+23
This patch adds the binding documentation for Spreadtrum hardware spinlock device. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2015-06-12DT: hwspinlock: add the CSR atlas7 hwspinlock bindings documentWei Chen1-0/+28
The Hardware Spinlock device on atlas7 provides hardware assistance for synchronization between the multiple processors in the system (dual Cortex-A7, CAN bus Cortex-M3 and audio DSP). This patch adds the DT bindings information for this hwspinlock module. Reviewed-by: Suman Anna <s-anna@ti.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Wei Chen <wei.chen@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2015-05-02DT: hwspinlock: Add binding documentation for Qualcomm hwmutexBjorn Andersson1-0/+39
Add binding documentation for the Qualcomm Hardware Mutex. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Acked-by: Kumar Gala <galak@codeaurora.org> Reviewed-by: Andy Gross <agross@codeaurora.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2015-05-02Documentation: dt: add the omap hwspinlock bindings documentSuman Anna1-0/+26
HwSpinlock IP is present only on OMAP4 and other newer SoCs, which are all device-tree boot only. This patch adds the DT bindings information for OMAP hwspinlock module. Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Suman Anna <s-anna@ti.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2015-05-02Documentation: dt: add common bindings for hwspinlockSuman Anna1-0/+59
This patch adds the generic common bindings used to represent a hwlock device and use/request locks in a device-tree build. Each hwspinlock provider should have the '#hwlock-cells' property, which represents the number of cells to be used for representing a specific hwspinlock. Client users shall use the property 'hwlocks' for requesting specific lock(s). Note that the document is named hwlock.txt deliberately to keep it a bit more generic. Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Suman Anna <s-anna@ti.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>