From: Simon Horman <horms@verge.net.au>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>,
Magnus Damm <magnus.damm@gmail.com>
Cc: Ian Molton <ian@mnementh.co.uk>, Chris Ball <cjb@laptop.org>,
Paul Mundt <lethal@linux-sh.org>,
linux-sh@vger.kernel.org, linux-mmc@vger.kernel.org,
Simon Horman <horms@verge.net.au>
Subject: [PATCH 3/6] mmc: tmio / sdhi: break out interrupt request/free
Date: Mon, 09 May 2011 00:55:13 +0000 [thread overview]
Message-ID: <1304902516-14150-4-git-send-email-horms@verge.net.au> (raw)
In-Reply-To: <1304902516-14150-1-git-send-email-horms@verge.net.au>
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Move request_irq()/free_irq() from the shared code
in tmio_mmc.c into the SDHI/tmio specific portion
in sh_mobile_sdhi.c and tmio_mmc_pio.c.
This is ground work to allow us to adjust the SDHI
code with IRQ flags and number of interupt sources.
Based on work by Magnus Damm.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
[horms@verge.net.au: edited changelog, cleaned up sob lines]
Signed-off-by: Simon Horman <horms@verge.net.au>
---
drivers/mmc/host/sh_mobile_sdhi.c | 18 ++++++++++++++++--
drivers/mmc/host/tmio_mmc.c | 21 ++++++++++++++++++---
drivers/mmc/host/tmio_mmc.h | 2 +-
drivers/mmc/host/tmio_mmc_pio.c | 17 ++---------------
4 files changed, 37 insertions(+), 21 deletions(-)
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index f60e954..9ee51ac 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -62,7 +62,7 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
struct tmio_mmc_host *host;
char clk_name[8];
- int ret;
+ int irq, ret;
priv = kzalloc(sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
if (priv = NULL) {
@@ -116,11 +116,24 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
if (ret < 0)
goto eprobe;
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ ret = irq;
+ goto eirq;
+ }
+
+ ret = request_irq(irq, tmio_mmc_irq, IRQF_DISABLED |
+ IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), host);
+ if (ret)
+ goto eirq;
+
pr_info("%s at 0x%08lx irq %d\n", mmc_hostname(host->mmc),
- (unsigned long)host->ctl, host->irq);
+ (unsigned long)host->ctl, irq);
return ret;
+eirq:
+ tmio_mmc_host_remove(host);
eprobe:
clk_disable(priv->clk);
clk_put(priv->clk);
@@ -135,6 +148,7 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
struct tmio_mmc_host *host = mmc_priv(mmc);
struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
+ free_irq(platform_get_irq(pdev, 0), host);
tmio_mmc_host_remove(host);
clk_disable(priv->clk);
clk_put(priv->clk);
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index be739f7..14479f9 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -64,7 +64,7 @@ static int __devinit tmio_mmc_probe(struct platform_device *pdev)
const struct mfd_cell *cell = mfd_get_cell(pdev);
struct tmio_mmc_data *pdata;
struct tmio_mmc_host *host;
- int ret = -EINVAL;
+ int ret = -EINVAL, irq;
if (pdev->num_resources != 2)
goto out;
@@ -73,6 +73,12 @@ static int __devinit tmio_mmc_probe(struct platform_device *pdev)
if (!pdata || !pdata->hclk)
goto out;
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ ret = irq;
+ goto out;
+ }
+
/* Tell the MFD core we are ready to be enabled */
if (cell->enable) {
ret = cell->enable(pdev);
@@ -84,11 +90,18 @@ static int __devinit tmio_mmc_probe(struct platform_device *pdev)
if (ret)
goto cell_disable;
+ ret = request_irq(irq, tmio_mmc_irq, IRQF_DISABLED |
+ IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), host);
+ if (ret)
+ goto host_remove;
+
pr_info("%s at 0x%08lx irq %d\n", mmc_hostname(host->mmc),
- (unsigned long)host->ctl, host->irq);
+ (unsigned long)host->ctl, irq);
return 0;
+host_remove:
+ tmio_mmc_host_remove(host);
cell_disable:
if (cell->disable)
cell->disable(pdev);
@@ -104,7 +117,9 @@ static int __devexit tmio_mmc_remove(struct platform_device *pdev)
platform_set_drvdata(pdev, NULL);
if (mmc) {
- tmio_mmc_host_remove(mmc_priv(mmc));
+ struct tmio_mmc_host *host = mmc_priv(mmc);
+ free_irq(platform_get_irq(pdev, 0), host);
+ tmio_mmc_host_remove(host);
if (cell->disable)
cell->disable(pdev);
}
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 58138a2..c6bf726 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -45,7 +45,6 @@ struct tmio_mmc_host {
struct mmc_request *mrq;
struct mmc_data *data;
struct mmc_host *mmc;
- int irq;
unsigned int sdio_irq_enabled;
/* Callbacks for clock / power control */
@@ -86,6 +85,7 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
+irqreturn_t tmio_mmc_irq(int irq, void *devid);
static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
unsigned long *flags)
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index fb1d990..6337424 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -564,7 +564,7 @@ out:
spin_unlock(&host->lock);
}
-static irqreturn_t tmio_mmc_irq(int irq, void *devid)
+irqreturn_t tmio_mmc_irq(int irq, void *devid)
{
struct tmio_mmc_host *host = devid;
struct tmio_mmc_data *pdata = host->pdata;
@@ -659,6 +659,7 @@ static irqreturn_t tmio_mmc_irq(int irq, void *devid)
out:
return IRQ_HANDLED;
}
+EXPORT_SYMBOL(tmio_mmc_irq);
static int tmio_mmc_start_data(struct tmio_mmc_host *host,
struct mmc_data *data)
@@ -893,21 +894,10 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
tmio_mmc_clk_stop(_host);
tmio_mmc_reset(_host);
- ret = platform_get_irq(pdev, 0);
- if (ret < 0)
- goto pm_suspend;
-
- _host->irq = ret;
-
tmio_mmc_disable_mmc_irqs(_host, TMIO_MASK_ALL);
if (pdata->flags & TMIO_MMC_SDIO_IRQ)
tmio_mmc_enable_sdio_irq(mmc, 0);
- ret = request_irq(_host->irq, tmio_mmc_irq, IRQF_DISABLED |
- IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), _host);
- if (ret)
- goto pm_suspend;
-
spin_lock_init(&_host->lock);
/* Init delayed work for request timeouts */
@@ -933,8 +923,6 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
return 0;
-pm_suspend:
- pm_runtime_suspend(&pdev->dev);
pm_disable:
pm_runtime_disable(&pdev->dev);
iounmap(_host->ctl);
@@ -952,7 +940,6 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
mmc_remove_host(host->mmc);
cancel_delayed_work_sync(&host->delayed_reset_work);
tmio_mmc_release_dma(host);
- free_irq(host->irq, host);
iounmap(host->ctl);
mmc_free_host(host->mmc);
--
1.7.4.4
next prev parent reply other threads:[~2011-05-09 0:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-09 0:55 mmc: sdhi, tmio: updates Simon Horman
2011-05-09 0:55 ` [PATCH 1/6] MMC: protect the tmio_mmc driver against a theoretical race Simon Horman
2011-05-09 0:55 ` [PATCH 2/6] mmc: Add runtime and system-wide PM to the TMIO MMC driver Simon Horman
2011-05-09 0:55 ` Simon Horman [this message]
2011-05-09 0:55 ` [PATCH 4/6] mmc: sdhi: no need for special interrupt flags Simon Horman
2011-05-09 0:55 ` [PATCH 5/6] mmc: sdhi: print out something useful Simon Horman
2011-05-09 0:55 ` [PATCH 6/6] mmc: sdhi: support up to 3 interrupt sources Simon Horman
2011-05-09 9:53 ` mmc: sdhi, tmio: updates Simon Horman
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