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mmc: tmio: add tmio_mmc_host_alloc/free() 

Current tmio_mmc driver is using tmio_mmc_data for driver/platform
specific data/callback, and it is needed for tmio_mmc_host_probe()
function. Because of this style, include/linux/mfd/tmio.h header has
tmio driver/framework specific data which is not needed from platform.

This patch adds new tmio_mmc_host_alloc/free() as cleanup preparation.
tmio driver specific data/callback will be implemented in tmio_mmc_host,
and platform specific data/callback will be implemented in tmio_mmc_data
in this cleanup.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Kuninori Morimoto 2015-01-13 04:57:22 +00:00 committed by Ulf Hansson
parent ec6f34e5b5
commit 94b110aff8
5 changed files with 51 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/mmc/host/sh_mobile_sdhi.c
View File

@ -113,7 +113,7 @@ static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host)
udelay(1);
if (!timeout) {
dev_warn(host->pdata->dev, "timeout waiting for SD bus idle\n");
dev_warn(&host->pdev->dev, "timeout waiting for SD bus idle\n");
return -EBUSY;
}
@ -207,6 +207,12 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
goto eclkget;
}
host = tmio_mmc_host_alloc(pdev);
if (!host) {
ret = -ENOMEM;
goto eprobe;
}
mmc_data->clk_enable = sh_mobile_sdhi_clk_enable;
mmc_data->clk_disable = sh_mobile_sdhi_clk_disable;
mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED;
@ -274,9 +280,9 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
/* SD control register space size is 0x100, 0x200 for bus_shift=1 */
mmc_data->bus_shift = resource_size(res) >> 9;
ret = tmio_mmc_host_probe(&host, pdev, mmc_data);
ret = tmio_mmc_host_probe(host, mmc_data);
if (ret < 0)
goto eprobe;
goto efree;
/*
* FIXME:
@ -351,6 +357,8 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
eirq:
tmio_mmc_host_remove(host);
efree:
tmio_mmc_host_free(host);
eprobe:
eclkget:
if (p && p->cleanup)

10
drivers/mmc/host/tmio_mmc.c
View File

@ -92,10 +92,14 @@ static int tmio_mmc_probe(struct platform_device *pdev)
pdata->bus_shift = resource_size(res) >> 10;
pdata->flags |= TMIO_MMC_HAVE_HIGH_REG;
ret = tmio_mmc_host_probe(&host, pdev, pdata);
if (ret)
host = tmio_mmc_host_alloc(pdev);
if (!host)
goto cell_disable;
ret = tmio_mmc_host_probe(host, pdata);
if (ret)
goto host_free;
ret = request_irq(irq, tmio_mmc_irq, IRQF_TRIGGER_FALLING,
dev_name(&pdev->dev), host);
if (ret)
@ -108,6 +112,8 @@ static int tmio_mmc_probe(struct platform_device *pdev)
host_remove:
tmio_mmc_host_remove(host);
host_free:
tmio_mmc_host_free(host);
cell_disable:
if (cell->disable)
cell->disable(pdev);

5
drivers/mmc/host/tmio_mmc.h
View File

@ -85,8 +85,9 @@ struct tmio_mmc_host {
bool sdio_irq_enabled;
};
int tmio_mmc_host_probe(struct tmio_mmc_host **host,
struct platform_device *pdev,
struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev);
void tmio_mmc_host_free(struct tmio_mmc_host *host);
int tmio_mmc_host_probe(struct tmio_mmc_host *host,
struct tmio_mmc_data *pdata);
void tmio_mmc_host_remove(struct tmio_mmc_host *host);
void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);

45
drivers/mmc/host/tmio_mmc_pio.c
View File

@ -1054,12 +1054,37 @@ static void tmio_mmc_of_parse(struct platform_device *pdev,
pdata->flags |= TMIO_MMC_WRPROTECT_DISABLE;
}
int tmio_mmc_host_probe(struct tmio_mmc_host **host,
struct platform_device *pdev,
struct tmio_mmc_data *pdata)
struct tmio_mmc_host*
tmio_mmc_host_alloc(struct platform_device *pdev)
{
struct tmio_mmc_host *_host;
struct tmio_mmc_host *host;
struct mmc_host *mmc;
mmc = mmc_alloc_host(sizeof(struct tmio_mmc_host), &pdev->dev);
if (!mmc)
return NULL;
host = mmc_priv(mmc);
host->mmc = mmc;
host->pdev = pdev;
return host;
}
EXPORT_SYMBOL(tmio_mmc_host_alloc);
void tmio_mmc_host_free(struct tmio_mmc_host *host)
{
mmc_free_host(host->mmc);
host->mmc = NULL;
}
EXPORT_SYMBOL(tmio_mmc_host_free);
int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
struct tmio_mmc_data *pdata)
{
struct platform_device *pdev = _host->pdev;
struct mmc_host *mmc = _host->mmc;
struct resource *res_ctl;
int ret;
u32 irq_mask = TMIO_MASK_CMD;
@ -1073,19 +1098,11 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
if (!res_ctl)
return -EINVAL;
mmc = mmc_alloc_host(sizeof(struct tmio_mmc_host), &pdev->dev);
if (!mmc)
return -ENOMEM;
ret = mmc_of_parse(mmc);
if (ret < 0)
goto host_free;
pdata->dev = &pdev->dev;
_host = mmc_priv(mmc);
_host->pdata = pdata;
_host->mmc = mmc;
_host->pdev = pdev;
platform_set_drvdata(pdev, mmc);
_host->set_pwr = pdata->set_pwr;
@ -1192,12 +1209,9 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
mmc_gpiod_request_cd_irq(mmc);
}
*host = _host;
return 0;
host_free:
mmc_free_host(mmc);
return ret;
}
@ -1222,7 +1236,6 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
pm_runtime_disable(&pdev->dev);
iounmap(host->ctl);
mmc_free_host(mmc);
}
EXPORT_SYMBOL(tmio_mmc_host_remove);

1
include/linux/mfd/tmio.h
View File

@ -135,7 +135,6 @@ struct tmio_mmc_data {
unsigned long bus_shift;
u32 ocr_mask; /* available voltages */
struct tmio_mmc_dma *dma;
struct device *dev;
unsigned int cd_gpio;
void (*set_pwr)(struct platform_device *host, int state);
void (*set_clk_div)(struct platform_device *host, int state);