Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1199438
| From | Nicolas Boichat <drinkcat@chromium.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/3] spi: ppc44x: Remove chipselect from setupxfer |
| Date | 2015-08-04 08:20 +0200 |
| Message-ID | <pTDJU-27d-15@gated-at.bofh.it> (permalink) |
| References | <pTDJT-27d-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The chipselect operation is already done in spi_bitbang_transfer_one,
or in spi_bitbang_setup, so there is no need to do it in setupxfer
as well.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
---
drivers/spi/spi-ppc4xx.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c
index 54fb984..55947f6 100644
--- a/drivers/spi/spi-ppc4xx.c
+++ b/drivers/spi/spi-ppc4xx.c
@@ -210,13 +210,6 @@ static int spi_ppc4xx_setupxfer(struct spi_device *spi, struct spi_transfer *t)
if (in_8(&hw->regs->cdm) != cdm)
out_8(&hw->regs->cdm, cdm);
- spin_lock(&hw->bitbang.lock);
- if (!hw->bitbang.busy) {
- hw->bitbang.chipselect(spi, BITBANG_CS_INACTIVE);
- /* Need to ndelay here? */
- }
- spin_unlock(&hw->bitbang.lock);
-
return 0;
}
--
2.5.0.rc2.392.g76e840b
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 1/3] spi: bitbang: Replace spinlock by mutex when calling chipselect Nicolas Boichat <drinkcat@chromium.org> - 2015-08-04 08:20 +0200 [PATCH 2/3] spi: ppc44x: Remove chipselect from setupxfer Nicolas Boichat <drinkcat@chromium.org> - 2015-08-04 08:20 +0200 Re: [PATCH 1/3] spi: bitbang: Replace spinlock by mutex when calling chipselect Mark Brown <broonie@kernel.org> - 2015-08-04 13:10 +0200
csiph-web