diff options
| author | Ranjani Vaidyanathan <ra5478@freescale.com> | 2010-12-15 13:50:09 -0600 |
|---|---|---|
| committer | Ranjani Vaidyanathan <ra5478@freescale.com> | 2010-12-15 17:31:37 -0600 |
| commit | 773170537241f88ac5c38fa6e827e487a9b400e7 (patch) | |
| tree | edd0cdfa473b5230e10f71aaf457be7407624a55 | |
| parent | d27fdc7b98277b981a7f493b7d8256a4f3fe313b (diff) | |
ENGR00136939-1: SPI:Fix suspend/resume issue on MX50 RDP
Fixed the SPI driver suspend/resume code. The SPI driver was missing
releasing the spin lock in certain conditions.In the resume code,
the master bit needs to be set while re-enabling the spi.
Signed-off-by: Ranjani Vaidyanathan <ra5478@freescale.com>
| -rw-r--r-- | drivers/spi/mxc_spi.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c index 93a66715e0c3..8e255f48bd7a 100644 --- a/drivers/spi/mxc_spi.c +++ b/drivers/spi/mxc_spi.c @@ -1199,6 +1199,7 @@ static int spi_bitbang_suspend(struct spi_bitbang *bitbang) } if (!list_empty(&bitbang->queue)) { dev_err(&bitbang->master->dev, "queue didn't empty\n"); + spin_unlock_irqrestore(&bitbang->lock, flags); return -EBUSY; } spin_unlock_irqrestore(&bitbang->lock, flags); @@ -1256,9 +1257,11 @@ static int mxc_spi_resume(struct platform_device *pdev) spi_bitbang_resume(&master_drv_data->mxc_bitbang); clk_enable(master_drv_data->clk); - __raw_writel(master_drv_data->spi_ver_def->spi_enable, - master_drv_data->base + MXC_CSPICTRL); + __raw_writel((master_drv_data->spi_ver_def->spi_enable + + master_drv_data->spi_ver_def->master_enable), + master_drv_data->base + MXC_CSPICTRL); clk_disable(master_drv_data->clk); + return 0; } #else |