- 18 May, 2021 9 commits
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Andy Shevchenko authored
The predefined mask for threshold modification can be used in case of Intel Merrifield SPI. Replace open-coded value with predefined mask when programming FIFO thresholds. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210517140351.901-10-andriy.shevchenko@linux.intel.comSigned-off-by:
Mark Brown <broonie@kernel.org>
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Andy Shevchenko authored
Update documentation by pointing out that it's applicable mostly for a legacy platform. While at it, add couple of points with regard to ACPI, Device Tree, and automatic DMA enablement. Signed-off-by:
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Andy Shevchenko authored
Fix style of the comments and messages along with typos in them. While at it, update Intel Copyright year. Signed-off-by:
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Andy Shevchenko authored
Instead of explicit casting use proper specifier in one case, and fix specifier signness in another. Signed-off-by:
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Andy Shevchenko authored
In the few places it's redundant to compare against 0. Drop the unneeded comparisons. Signed-off-by:
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Andy Shevchenko authored
The struct chip_data had been introduced in order to keep the parameters that may be provided on stack during device allocation. There is no need to duplicate parameters there, which are carried on by SPI device itself. Signed-off-by:
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Andy Shevchenko authored
SPI core has been already providing the GPIO CS handling. Use it. Signed-off-by:
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Andy Shevchenko authored
SPI core has been already providing the GPIO CS handling. Use it. Signed-off-by:
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Andy Shevchenko authored
SPI core may utilize properties and resources provided by the parent device. Propagate firmware node to the child SPI controller device for that. Signed-off-by:
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- 11 May, 2021 20 commits
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Andy Shevchenko authored
Use SPI_MODE_X_MASK instead of open coded variant. Signed-off-by:
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Andy Shevchenko authored
Use SPI_MODE_X_MASK instead of open coded variant. Signed-off-by:
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Andy Shevchenko authored
Use SPI_MODE_X_MASK instead of open coded variant. Signed-off-by:
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Andy Shevchenko authored
Use SPI_MODE_X_MASK instead of open coded variant. Signed-off-by:
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Andy Shevchenko authored
Use SPI_MODE_X_MASK instead of open coded variant. Signed-off-by:
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Andy Shevchenko authored
Use SPI_MODE_X_MASK instead of open coded variant. Signed-off-by:
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Andy Shevchenko authored
Use SPI_MODE_X_MASK instead of open coded variant. While at it, fix format specifier and drop explicit casting. Signed-off-by:
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Mark Brown authored
Merge series "spi: pxa2xx: Set of cleanups" from Andy Shevchenko <andriy.shevchenko@linux.intel.com>: Set of cleanups here and there related to the SPI PXA2xx driver. On top of them, adding the special type for Intel Merrifield. In v3: - rebased on top of v5.13-rc1 and/or spi/for-5,14 In v2: - cover letter (Mark) - drop moving the header in patch 5 (Mark) Andy Shevchenko (14): spi: pxa2xx: Use one point of return when ->probe() fails spi: pxa2xx: Utilize MMIO and physical base from struct ssp_device spi: pxa2xx: Utilize struct device from struct ssp_device spi: pxa2xx: Replace header inclusions by forward declarations spi: pxa2xx: Unify ifdeffery used in the headers spi: pxa2xx: Group Intel Quark specific definitions spi: pxa2xx: Introduce int_stop_and_reset() helper spi: pxa2xx: Reuse int_error_stop() in pxa2xx_spi_slave_abort() spi: pxa2xx: Use pxa_ssp_enable()/pxa_ssp_disable() in the driver spi: pxa2xx: Extract pxa2xx_spi_update() helper spi: pxa2xx: Extract clear_SSCR1_bits() helper spi: pxa2xx: Extract read_SSSR_bits() helper spi: pxa2xx: Constify struct driver_data parameter spi: pxa2xx: Introduce special type for Merrifield SPIs drivers/spi/spi-pxa2xx-dma.c | 37 +++---- drivers/spi/spi-pxa2xx-pci.c | 4 +- drivers/spi/spi-pxa2xx.c | 190 +++++++++++++++++---------------- drivers/spi/spi-pxa2xx.h | 52 ++++----- include/linux/pxa2xx_ssp.h | 42 +++++++- include/linux/spi/pxa2xx_spi.h | 9 +- sound/soc/pxa/pxa-ssp.c | 16 --- 7 files changed, 185 insertions(+), 165 deletions(-) -- 2.30.2
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Zou Wei authored
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Zou Wei <zou_wei@huawei.com> Link: https://lore.kernel.org/r/1620716922-108572-1-git-send-email-zou_wei@huawei.comSigned-off-by:
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Andy Shevchenko authored
We have a lot of hard coded values in nanoseconds or other units. Use predefined constants to make it more clear. While at it, add or amend comments in the corresponding functions. Signed-off-by:
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Andy Shevchenko authored
Intel Merrifield SPI is actually more closer to PXA3xx. It has extended FIFO (32 bytes) and additional registers to get or set FIFO thresholds. Introduce new type for Intel Merrifield SPI host controllers and handle bigger FIFO size. Signed-off-by:
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Andy Shevchenko authored
In a couple of functions the contents of struct driver_data are not altered, hence we may constify the respective function parameter. Signed-off-by:
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Andy Shevchenko authored
There are few places that repeat the logic of "read some bits from SSSR". Extract read_SSSR_bits() helper to deduplicate that. Signed-off-by:
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Andy Shevchenko authored
There are few places that repeat the logic of "clear some bits in SSCR1". Extract clear_SSCR1_bits() helper to deduplicate that. Signed-off-by:
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Andy Shevchenko authored
There are few places that repeat the logic of "update if changed". Extract pxa2xx_spi_update() helper to deduplicate that. Signed-off-by:
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Andy Shevchenko authored
There are few places that repeat the logic of pxa_ssp_enable() and pxa_ssp_disable(). Use them instead of open coded variants. Signed-off-by:
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Andy Shevchenko authored
It appears that pxa2xx_spi_slave_abort()almost repeats the functionality of the int_error_stop(). Reuse int_error_stop() in pxa2xx_spi_slave_abort(). Signed-off-by:
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Andy Shevchenko authored
Currently we have three times the same few lines repeated in the code. Deduplicate them by newly introduced int_stop_and_reset() helper. Signed-off-by:
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Mark Brown authored
Some cleanups of SPI drivers. No functional change. Thanks, Jay Jay Fang (4): spi: ppc4xx: include <linux/io.h> instead of <asm/io.h> spi: omap-100k: Clean the value of 'status' is not used spi: delete repeated words in comments spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf' drivers/spi/spi-bcm2835aux.c | 2 +- drivers/spi/spi-dw-mmio.c | 2 +- drivers/spi/spi-geni-qcom.c | 4 ++-- drivers/spi/spi-loopback-test.c | 2 +- drivers/spi/spi-omap-100k.c | 2 -- drivers/spi/spi-pl022.c | 4 ++-- drivers/spi/spi-ppc4xx.c | 4 ++-- 7 files changed, 9 insertions(+), 11 deletions(-) -- 2.7.4
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Mark Brown authored
Merge series "spi: pxa2xx: Set of cleanups" from Andy Shevchenko <andriy.shevchenko@linux.intel.com>: Set of cleanups here and there related to the SPI PXA2xx driver. On top of them, adding the special type for Intel Merrifield. In v2: - cover letter (Mark) - drop moving the header in patch 5 (Mark) Andy Shevchenko (14): spi: pxa2xx: Use one point of return when ->probe() fails spi: pxa2xx: Utilize MMIO and physical base from struct ssp_device spi: pxa2xx: Utilize struct device from struct ssp_device spi: pxa2xx: Replace header inclusions by forward declarations spi: pxa2xx: Unify ifdeffery used in the headers spi: pxa2xx: Group Intel Quark specific definitions spi: pxa2xx: Introduce int_stop_and_reset() helper spi: pxa2xx: Reuse int_error_stop() in pxa2xx_spi_slave_abort() spi: pxa2xx: Use pxa_ssp_enable()/pxa_ssp_disable() in the driver spi: pxa2xx: Extract pxa2xx_spi_update() helper spi: pxa2xx: Extract clear_SSCR1_bits() helper spi: pxa2xx: Extract read_SSSR_bits() helper spi: pxa2xx: Constify struct driver_data parameter spi: pxa2xx: Introduce special type for Merrifield SPIs drivers/spi/spi-pxa2xx-dma.c | 37 +++---- drivers/spi/spi-pxa2xx-pci.c | 4 +- drivers/spi/spi-pxa2xx.c | 190 +++++++++++++++++---------------- drivers/spi/spi-pxa2xx.h | 52 ++++----- include/linux/pxa2xx_ssp.h | 42 +++++++- include/linux/spi/pxa2xx_spi.h | 9 +- sound/soc/pxa/pxa-ssp.c | 16 --- 7 files changed, 185 insertions(+), 165 deletions(-) -- 2.30.2
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- 10 May, 2021 11 commits
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Christophe JAILLET authored
'ret' is known to be 0 here. No error code is available, so just remove it from the error message. Fixes: 921fc183 ("spi: tegra210-quad: Add support for Tegra210 QSPI controller") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/b990c1bb5830196142c3d70e3e3c6c0245a7e75f.1620404705.git.christophe.jaillet@wanadoo.frSigned-off-by:
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Christophe JAILLET authored
'ret' is known to be 0 here. No error code is available, so just remove it from the error message. Fixes: f333a331 ("spi/tegra114: add spi driver") Signed-off-by:
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Tian Tao authored
word_len should be checked in the omap1_spi100k_setup_transfer function to see if it exceeds 32. Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Link: https://lore.kernel.org/r/1619695248-39045-1-git-send-email-tiantao6@hisilicon.comSigned-off-by:
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Geert Uytterhoeven authored
Originally, the Renesas RZ/N1 SPI Controller DT bindings were not integrated in the main DT bindings for the Synopsys DesignWare Synchronous Serial Interface, but in its own file, as the RZ/N1 controller has additional registers for software CS control and DMA. As so far DMA is not supported on RZ/N1, and json-schema can handle any possible differences fine, integrate the RZ/N1 compatible values in the main DT bindings for the Synopsys DW SSI. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/aef15aa119ed02487ded4691141678bc1040c3b4.1620301936.git.geert+renesas@glider.beSigned-off-by:
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Jay Fang authored
pch_spi_set_tx() frees data->pkt_tx_buff on failure of kzalloc() for data->pkt_rx_buff, but its caller, pch_spi_process_messages(), will free data->pkt_tx_buff again. Set data->pkt_tx_buff to NULL after kfree() to avoid double free. Signed-off-by:
Jay Fang <f.fangjian@huawei.com> Link: https://lore.kernel.org/r/1620284888-65215-1-git-send-email-f.fangjian@huawei.comSigned-off-by:
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Andy Shevchenko authored
DDS_RATE is Intel Quark specific definition. Move it to the rest Intel Quark related. Signed-off-by:
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Andy Shevchenko authored
The two headers have quite different ifdeffery to prevent multiple inclusion. Unify them with the pattern that in particular reflects their location. Signed-off-by:
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Andy Shevchenko authored
When the data structure is only referred by pointer, compiler may not need to see the contents of the data type. Thus, we may replace header inclusions by respective forward declarations. Due to above add missed headers as well. Signed-off-by:
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Andy Shevchenko authored
We have a duplication of struct device in the struct driver_data, get rid of it and reuse member from struct ssp_device instead. Signed-off-by:
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Andy Shevchenko authored
We have a duplication of MMIO and physical base addresses in the struct driver_data, get rid of it and reuse members from struct ssp_device instead. Signed-off-by:
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Andy Shevchenko authored
When we can't allocate SPI controller, jump to the error path rather than return locally. Signed-off-by:
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