From: Scott Jiang <scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: <spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
Grant Likely
<grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>,
<uclinux-dist-devel-ZG0+EudsQA8dtHy/vicBwGD2FQJk+8+b@public.gmane.org>
Cc: Scott Jiang <scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH 2/6] spi: spi-bfin-sport: move word length setup to transfer handler
Date: Mon, 23 Apr 2012 18:18:09 -0400 [thread overview]
Message-ID: <1335219493-24184-2-git-send-email-scott.jiang.linux@gmail.com> (raw)
In-Reply-To: <1335219493-24184-1-git-send-email-scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Each transfer may have its own bits per word.
Signed-off-by: Scott Jiang <scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/spi/spi-bfin-sport.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c
index 248a2cc..bfd9047 100644
--- a/drivers/spi/spi-bfin-sport.c
+++ b/drivers/spi/spi-bfin-sport.c
@@ -252,19 +252,15 @@ static void
bfin_sport_spi_restore_state(struct bfin_sport_spi_master_data *drv_data)
{
struct bfin_sport_spi_slave_data *chip = drv_data->cur_chip;
- unsigned int bits = (drv_data->ops == &bfin_sport_transfer_ops_u8 ? 7 : 15);
bfin_sport_spi_disable(drv_data);
dev_dbg(drv_data->dev, "restoring spi ctl state\n");
bfin_write(&drv_data->regs->tcr1, chip->ctl_reg);
- bfin_write(&drv_data->regs->tcr2, bits);
bfin_write(&drv_data->regs->tclkdiv, chip->baud);
- bfin_write(&drv_data->regs->tfsdiv, bits);
SSYNC();
bfin_write(&drv_data->regs->rcr1, chip->ctl_reg & ~(ITCLK | ITFS));
- bfin_write(&drv_data->regs->rcr2, bits);
SSYNC();
bfin_sport_spi_cs_active(chip);
@@ -425,6 +421,9 @@ bfin_sport_spi_pump_transfers(unsigned long data)
drv_data->ops = &bfin_sport_transfer_ops_u8;
else
drv_data->ops = &bfin_sport_transfer_ops_u16;
+ bfin_write(&drv_data->regs->tcr2, bits_per_word - 1);
+ bfin_write(&drv_data->regs->tfsdiv, bits_per_word - 1);
+ bfin_write(&drv_data->regs->rcr2, bits_per_word - 1);
drv_data->state = RUNNING_STATE;
--
1.7.0.4
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next prev parent reply other threads:[~2012-04-23 22:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-23 22:18 [PATCH 1/6] spi: rename config macro name for bfin5xx spi controller driver Scott Jiang
[not found] ` <1335219493-24184-1-git-send-email-scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-04-23 22:18 ` Scott Jiang [this message]
[not found] ` <1335219493-24184-2-git-send-email-scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-04-27 18:21 ` [PATCH 2/6] spi: spi-bfin-sport: move word length setup to transfer handler Grant Likely
2012-04-27 18:21 ` Grant Likely
2012-04-23 22:18 ` [PATCH 3/6] spi/bfin_spi: drop bits_per_word from client data Scott Jiang
[not found] ` <1335219493-24184-3-git-send-email-scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-04-27 18:21 ` Grant Likely
2012-04-23 22:18 ` [PATCH 4/6] spi/spi_bfin_sport: " Scott Jiang
[not found] ` <1335219493-24184-4-git-send-email-scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-04-27 18:21 ` Grant Likely
2012-04-23 22:18 ` [PATCH 5/6] spi: spi-bfin5xx: reverse if condition in interrupt mode Scott Jiang
[not found] ` <1335219493-24184-5-git-send-email-scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-04-27 18:21 ` Grant Likely
2012-04-23 22:18 ` [PATCH 6/6] spi: spi-bfin5xx: flush spi after each transfer Scott Jiang
[not found] ` <1335219493-24184-6-git-send-email-scott.jiang.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-04-27 18:35 ` Grant Likely
2012-04-28 4:04 ` Mike Frysinger
2012-04-27 17:21 ` [PATCH 1/6] spi: rename config macro name for bfin5xx spi controller driver Grant Likely
2012-04-28 4:00 ` Mike Frysinger
2012-04-27 18:20 ` Grant Likely
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