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path: root/drivers/spi/spi-sh-hspi.c
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* Merge remote-tracking branch 'spi/topic/hspi' into spi-nextMark Brown2013-10-251-1/+9
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| * spi/hspi: add device tree supportKuninori Morimoto2013-10-251-0/+8
| | | | | | | | | | | | | | Support for loading the Renesas HSPI driver via devicetree. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| * spi: sh-hspi: Fix checkpatch issueJingoo Han2013-10-151-1/+1
| | | | | | | | | | | | | | | | | | Fix the following checkpatch warning. WARNING: space prohibited before semicolon Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
* | Merge remote-tracking branch 'spi/topic/bfin' into spi-nextMark Brown2013-10-251-2/+1Star
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| * spi: sh-hspi: use devm_spi_register_master()Jingoo Han2013-09-261-2/+1Star
| | | | | | | | | | | | | | | | Use devm_spi_register_master() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
* | spi/hspi: fixup Runtime PM enable timingKuninori Morimoto2013-10-031-2/+2
|/ | | | | | | | | | | | | | 3e00a09d2fbd64f0ad98e7c8c29dbf9e038fc746 (spi/hspi: Convert to core runtime PM) enabled master->auto_runtime_pm. Then, pm_runtime_enable() is required *before* spi_register_master() calling. This patch fixed it up. Kernel will hang up with "spi_master spi0: Failed to power device: -13" message without this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
* Merge remote-tracking branch 'spi/topic/sh-hspi' into spi-nextMark Brown2013-09-011-2/+0Star
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| * spi/sh-hspi: Remove noisy printMark Brown2013-07-281-2/+0Star
| | | | | | | | | | | | This adds no meaningful value. Signed-off-by: Mark Brown <broonie@linaro.org>
* | spi/hspi: Convert to core runtime PMMark Brown2013-07-291-17/+1Star
|/ | | | Signed-off-by: Mark Brown <broonie@linaro.org>
* Merge remote-tracking branch 'spi/topic/pdata' into spi-nextMark Brown2013-06-261-2/+2
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| * spi: use platform_{get,set}_drvdata()Jingoo Han2013-05-231-2/+2
| | | | | | | | | | | | | | | | | | Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | spi: hspi: fixup long delay timeKuninori Morimoto2013-06-041-1/+1
|/ | | | | | | | | | | Current HSPI driver is using msleep(20) on hspi_status_check_timeout(), but it was too long delay for SPI device. Bock-W board SPI access was too slow without this patch. This patch uses udelay(10) for it. Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* spi/sh-hspi: fix return value check in hspi_probe().Cyril Roelandt2012-12-191-1/+1
| | | | | | | | | According to its documentation, clk_get() returns a "valid IS_ERR() condition containing errno", so we should call IS_ERR() rather than a NULL check. Signed-off-by: Cyril Roelandt <tipecaml@gmail.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: Remove HOTPLUG section attributesGrant Likely2012-12-071-3/+3
| | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Bill Pemberton has done most of the legwork on this series. I've used his script to purge the attributes from the drivers/gpio tree. Reported-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi/sh-hspi: add CS manual control supportPhil Edworthy2012-11-231-2/+41
| | | | | | | | | | | The current HSPI driver used automatic CS control, leading to CS active for each byte transmitted. This patch changes the driver to manual CS control, and ensures CS is active thoughout a whole message. Additionally, it uses the cs_change field to determine if CS is disabled between transfers in the message. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: spi-sh-hspi: drop frees of devm_ alloc'd dataJulia Lawall2012-09-061-4/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | devm free functions should not have to be explicitly used. A semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ @@ ( * devm_kfree(...); | * devm_free_irq(...); | * devm_iounmap(...); | * devm_release_region(...); | * devm_release_mem_region(...); ) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* spi: sh-hspi: modify write/read methodKuninori Morimoto2012-03-151-69/+24Star
| | | | | | | | | | | Current sh-hspi had wrong write/read method which was not linux standard. If spi_transfer requests tx[2], rx[2] len=2, then, driver should run tx[0], rx[0], tx[1], rx[1]. But current sh-hspi runs tx[0], tx[1], rx[0], rx[1]. This patch fixes it up. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: sh-hspi: control spi clock more correctlyKuninori Morimoto2012-03-151-16/+70
| | | | | | | | | | | Current sh-hspi had used platform-specific speed. This patch remove it, and use spi_transfer specific speed. It removes unnecessary flags from struct sh_hspi_info, but struct sh_hspi_info is still exist, since sh-hspi needs platform info in the future. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: sh-hspi: convert to using core message queueKuninori Morimoto2012-03-151-97/+55Star
| | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: Add SuperH HSPI prototype driverKuninori Morimoto2012-03-091-0/+364
This patch adds SuperH HSPI driver. It is still prototype driver, but has enough function at this point. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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