this patch add the support of ipm design.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220315032411.2826-4-leilk.liu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds dt-binding documentation for MT7986.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220315032411.2826-3-leilk.liu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Various spelling mistakes in comments.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20220314115354.144023-22-Julia.Lawall@inria.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
this patch support tick_delay bit[31:30] without enhance_timing feature.
Fixes: f84d866ab43f("spi: mediatek: add tick_delay support")
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220315032411.2826-2-leilk.liu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
PL022 has two input clocks named sspclk and apb_pclk. Current schema
refers to two notations of sspclk which are indeed same and thus one can
be dropped. Update clock-names property to reflect the same.
Signed-off-by: Kuldeep Singh <singh.kuldeep87k@gmail.com>
Link: https://lore.kernel.org/r/20220309171847.5345-1-singh.kuldeep87k@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Remove dev_err() messages after platform_get_irq*() failures.
platform_get_irq() already prints an error.
Generated by: scripts/coccinelle/api/platform_get_irq.cocci
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Link: https://lore.kernel.org/r/20220310094806.13734-1-hanyihao@vivo.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Alim Akhtar:
This series adds support for the SPI controller in the Tesla FSD SoC,
also pulling in:
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ib-mfd-spi-dt-v5.18
from the MFD tree which has dependencies for the DT bindings.
Add compatible and port configuration for spi controller
for Tesla Full Self-Driving SoC.
Cc: linux-fsd@tesla.com
Signed-off-by: Aswani Reddy <aswani.reddy@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Andi Shyti <andi@etezian.org>
Link: https://lore.kernel.org/r/20220308121640.27344-2-alim.akhtar@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Adds spi controller dt-binding compatible information for
Tesla Full Self-Driving (FSD) SoC.
Cc: linux-fsd@tesla.com
Signed-off-by: Adithya K V <adithya.kv@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Andi Shyti <andi@etezian.org>
Link: https://lore.kernel.org/r/20220308121640.27344-1-alim.akhtar@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Krishna Yarlagadda <kyarlagadda@nvidia.com>:
Add ACPI support for Tegra210 QUAD SPI driver Support new Tegra194
feature, combined sequence mode.
DMA device is expected to be available while SPI transfer is ongoing.
Prevent usage of potentially stale DMA device by keeping reference
count till the end of the transfer.
Fixes: 4d986ffa03 ("spi: add missing pci_dev_put() before return")
Reported-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220307173740.80996-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add combined sequence mode supported by Tegra QSPI controller.
For commands which contain cmd, addr, data parts to it, controller
can accept all 3 transfers at once and avoid interrupt for each
transfer. This would improve read & write performance.
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220307165519.38380-3-kyarlagadda@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add ACPI ID for Tegra QUAD SPI. Switch to common device property calls.
Skip clock calls that are not updated in ACPI boot.
Runtime PM support is not yet enabled with ACPI boot.
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/20220307165519.38380-2-kyarlagadda@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
max_seg_size is unsigned int and it can have a value up to 2^32
(for eg:-RZ_DMAC driver sets dma_set_max_seg_size as U32_MAX)
When this value is used in min_t() as an integer type, it becomes
-1 and the value of sgs becomes 0.
Fix this issue by replacing the 'int' data type with 'unsigned int'
in min_t().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220307184843.9994-1-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When running dt_binding_check on the nvidia,tegra210-quad.yaml binding
document the following error is reported ...
nvidia,tegra210-quad.example.dt.yaml:0:0: /example-0/spi@70410000/flash@0:
failed to match any schema with compatible: ['spi-nor']
Update the example in the binding document to fix the above error.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: 9684752e5f ("dt-bindings: spi: Add Tegra Quad SPI device tree binding")
Link: https://lore.kernel.org/r/20220307113529.315685-1-jonathanh@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The code has been in a irq-disabled context since it is hard IRQ. There
is no necessity to do it again.
Signed-off-by: Xingbang Liu <liu.airalert@gmail.com>
Link: https://lore.kernel.org/r/20220302071521.6638-1-liu.airalert@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Remove dev_err() messages after platform_get_irq*() failures.
platform_get_irq() already prints an error.
Generated by: scripts/coccinelle/api/platform_get_irq.cocci
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Link: https://lore.kernel.org/r/20220303125054.3574-1-hanyihao@vivo.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add Han Xu as flexspi maintainer.
Also, update my email address as previous one is not working anymore.
Signed-off-by: Kuldeep Singh <singh.kuldeep87k@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220302192915.6193-1-singh.kuldeep87k@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert the MFD part of Maxim MAX77802 PMIC to DT schema format. The
example DTS was copied from existing DTS (exynos5800-peach-pi.dts), so
keep the license as GPL-2.0-only.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220215075344.31421-3-krzysztof.kozlowski@canonical.com
Convert the regulators of Maxim MAX77802 PMIC to DT schema format.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220215075344.31421-2-krzysztof.kozlowski@canonical.com
Convert the MFD part of Maxim MAX14577/MAX77836 MUIC to DT schema
format. The example DTS was copied from existing DTS
(exynos3250-rinato.dts), so keep the license as GPL-2.0-only.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220215074759.29402-4-krzysztof.kozlowski@canonical.com
Convert the regulator bindings of Maxim MAX14577/MAX77835 MUIC to DT
schema format. The existing bindings were defined in
../bindings/mfd/max14577.txt.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220215074759.29402-3-krzysztof.kozlowski@canonical.com
Convert the Charger bindings of Maxim MAX14577/MAX77836 MUIC to DT
schema format. The existing bindings were defined in
../bindings/mfd/max14577.txt.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220215074759.29402-2-krzysztof.kozlowski@canonical.com
The Samsung SoC SPI driver requires to provide controller-data node
for each of SPI peripheral device nodes. Make this controller-data node
optional, so DTS could be simpler.
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Andi Shyti <andi@etezian.org>
Reviwed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220124082347.32747-5-krzysztof.kozlowski@canonical.com
The ChromeOS Embedded Controller appears on boards with Samsung Exynos
SoC, where Exynos SPI bindings expect controller-data node. Reference
SPI peripheral bindings which include now Samsung SPI peripheral parts.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220124082347.32747-3-krzysztof.kozlowski@canonical.com
Convert the Samsung SoC (S3C24xx, S3C64xx, S5Pv210, Exynos) SPI
controller bindings to DT schema format.
The conversion also drops requirement from providing controller-data and
its data for each of SPI peripheral device nodes. The dtschema cannot
express this and the requirement is being relaxed in the driver now.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220124082347.32747-2-krzysztof.kozlowski@canonical.com
The MAX77843 is used in Exynos5433-based TM2 boards and shares some
parts of code with MAX77693 (regulator and haptic motor drivers).
Include all MAX77843 drivers in the entry for Maxim PMIC/MUIC drivers
for Exynos boards, so they will receive some dedicated review coverage.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220111174805.223732-6-krzysztof.kozlowski@canonical.com
Document the bindings for MAX77843 MFD driver, based on Exynos5433 TM2
devicetree. These are neither accurate nor finished bindings but at
least allow parsing existing DTS files.
The example DTS was copied from existing DTS
(exynos5433-tm2-common.dtsi), so keep the license as GPL-2.0-only.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220111174805.223732-5-krzysztof.kozlowski@canonical.com
Document the bindings for MAX77843 regulator driver. The bindings are
almost identical to MAX77693 bindings, except the actual names of
regulators.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220111174805.223732-4-krzysztof.kozlowski@canonical.com
Document the bindings for MAX77843 MUIC/extcon driver, based on
Exynos5433 TM2 devicetree. These are neither accurate nor finished
bindings but at least allow parsing existing DTS files.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220111174805.223732-3-krzysztof.kozlowski@canonical.com
As the potential failure of the dma_set_mask(),
it should be better to check it and return error
if fails.
Fixes: 126bdb606f ("spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220302092051.121343-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
The minimum array length defaults to the same size as the maximum. For
'mediatek,pad-select', the example has a length of 2 and in-tree .dts
files have a length of 1, but the schema says the length must be 4.
There's currently no warning in the example because the schema fixups
are not handling this case correctly.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220301212358.1887668-1-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Drop comment "# RZ/A and RZ/G2{L,LC}" for generic compatible string
"renesas,rspi-rz" as this will avoid changing the line for every new SoC
addition.
Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220301134244.20174-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add RSPI binding documentation for Renesas RZ/V2L SoC.
RSPI block is identical to one found on RZ/A, so no driver changes are
required. The fallback compatible string "renesas,rspi-rz" will be used
on RZ/V2L.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220227225956.29570-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit d40f0b6f2e instroduced last_cs_enable to avoid setting
chipselect if it's not necessary, but it also introduces a bug. The
chipselect may not be set correctly on multi-device SPI busses. The
reason is that we can't judge the chipselect by bool last_cs_enable,
since chipselect may be modified after other devices were accessed.
So we should record the specific state of chipselect in case of
confusion.
Signed-off-by: Yun Zhou <yun.zhou@windriver.com>
Link: https://lore.kernel.org/r/20220217141234.72737-1-yun.zhou@windriver.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Extract pxa2xx_spi_pci_clk_register() from ->probe() in order to reuse it
later on for getting rid of max_clk_rate temporary storage.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220225172350.69797-9-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Mark Brown