diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2012-02-22 13:16:09 +0100 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-03-27 12:20:02 -0400 |
| commit | e23cd53c799694d0dc1d6a66370201ad9c181bae (patch) | |
| tree | dd8bf6b3e353656b08c6e5441a6e3a52f28dbaf3 /drivers/mmc/host/tmio_mmc_pio.c | |
| parent | e3f1adb63cfa6f6ef6b4e63a546e13210c5f3cb2 (diff) | |
| download | blackbird-op-linux-e23cd53c799694d0dc1d6a66370201ad9c181bae.tar.gz blackbird-op-linux-e23cd53c799694d0dc1d6a66370201ad9c181bae.zip | |
mmc: tmio_mmc: do not enable card hotplug interrupts, if unused
If TMIO MMC is used in polling mode, or the card is non-removable, or
card-detection is performed, using an external interrupt, there is no
need to enable controller native card hotplug interrupts.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc_pio.c')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_pio.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index e21988901c36..5444d533322c 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -304,6 +304,7 @@ static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command { struct mmc_data *data = host->data; int c = cmd->opcode; + u32 irq_mask = TMIO_MASK_CMD; /* Command 12 is handled by hardware */ if (cmd->opcode == 12 && !cmd->arg) { @@ -339,7 +340,9 @@ static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command c |= TRANSFER_READ; } - tmio_mmc_enable_mmc_irqs(host, TMIO_MASK_CMD); + if (!host->native_hotplug) + irq_mask &= ~(TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT); + tmio_mmc_enable_mmc_irqs(host, irq_mask); /* Fire off the command */ sd_ctrl_write32(host, CTL_ARG_REG, cmd->arg); @@ -963,6 +966,8 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host, irq_mask |= TMIO_MASK_READOP; if (!_host->chan_tx) irq_mask |= TMIO_MASK_WRITEOP; + if (!_host->native_hotplug) + irq_mask &= ~(TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT); tmio_mmc_enable_mmc_irqs(_host, irq_mask); |
