aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/spi/spi-sh-hspi.c (follow)
AgeCommit message (Collapse)AuthorFilesLines
2012-12-19spi/sh-hspi: fix return value check in hspi_probe().Cyril Roelandt1-1/+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>
2012-12-07spi: Remove HOTPLUG section attributesGrant Likely1-3/+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>
2012-11-23spi/sh-hspi: add CS manual control supportPhil Edworthy1-2/+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>
2012-09-06spi: spi-sh-hspi: drop frees of devm_ alloc'd dataJulia Lawall1-4/+1
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>
2012-03-15spi: sh-hspi: modify write/read methodKuninori Morimoto1-69/+24
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>
2012-03-15spi: sh-hspi: control spi clock more correctlyKuninori Morimoto1-16/+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>
2012-03-15spi: sh-hspi: convert to using core message queueKuninori Morimoto1-97/+55
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-09spi: Add SuperH HSPI prototype driverKuninori Morimoto1-0/+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>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.