@@ -15,7 +15,6 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/mmc/host.h>
-#include <linux/mmc/sdhci-pltfm.h>
#include <mach/cns3xxx.h>
#include "sdhci.h"
#include "sdhci-pltfm.h"
@@ -86,7 +85,7 @@ static struct sdhci_ops sdhci_cns3xxx_ops = {
.set_clock = sdhci_cns3xxx_set_clock,
};
-struct sdhci_pltfm_data sdhci_cns3xxx_pdata = {
+struct sdhci_data sdhci_cns3xxx_data = {
.ops = &sdhci_cns3xxx_ops,
.quirks = SDHCI_QUIRK_BROKEN_DMA |
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
@@ -61,7 +61,7 @@ static struct sdhci_ops sdhci_dove_ops = {
.read_l = sdhci_dove_readl,
};
-struct sdhci_pltfm_data sdhci_dove_pdata = {
+struct sdhci_data sdhci_dove_data = {
.ops = &sdhci_dove_ops,
.quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
SDHCI_QUIRK_NO_BUSY_IRQ |
@@ -16,7 +16,6 @@
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/mmc/host.h>
-#include <linux/mmc/sdhci-pltfm.h>
#include <mach/hardware.h>
#include "sdhci.h"
#include "sdhci-pltfm.h"
@@ -86,21 +85,21 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
esdhc_clrset_le(host, 0xff, val, reg);
}
-static unsigned int esdhc_pltfm_get_max_clock(struct sdhci_host *host)
+static unsigned int esdhc_get_max_clock(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
return clk_get_rate(pltfm_host->clk);
}
-static unsigned int esdhc_pltfm_get_min_clock(struct sdhci_host *host)
+static unsigned int esdhc_get_min_clock(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
return clk_get_rate(pltfm_host->clk) / 256 / 16;
}
-static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pdata)
+static int esdhc_init(struct sdhci_host *host, struct sdhci_data *pdata)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct clk *clk;
@@ -123,7 +122,7 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd
return 0;
}
-static void esdhc_pltfm_exit(struct sdhci_host *host)
+static void esdhc_exit(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -136,14 +135,14 @@ static struct sdhci_ops sdhci_esdhc_ops = {
.write_w = esdhc_writew_le,
.write_b = esdhc_writeb_le,
.set_clock = esdhc_set_clock,
- .get_max_clock = esdhc_pltfm_get_max_clock,
- .get_min_clock = esdhc_pltfm_get_min_clock,
+ .get_max_clock = esdhc_get_max_clock,
+ .get_min_clock = esdhc_get_min_clock,
};
-struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
+struct sdhci_data sdhci_esdhc_imx_data = {
.quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_ADMA,
/* ADMA has issues. Might be fixable */
.ops = &sdhci_esdhc_ops,
- .init = esdhc_pltfm_init,
- .exit = esdhc_pltfm_exit,
+ .init = esdhc_init,
+ .exit = esdhc_exit,
};
@@ -23,6 +23,7 @@
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/of_device.h>
#include <linux/mmc/host.h>
#ifdef CONFIG_PPC
#include <asm/machdep.h>
@@ -30,6 +31,20 @@
#include "sdhci-of.h"
#include "sdhci.h"
+static const struct of_device_id sdhci_of_match[] = {
+#ifdef CONFIG_MMC_SDHCI_OF_ESDHC
+ { .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc_data, },
+ { .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc_data, },
+ { .compatible = "fsl,esdhc", .data = &sdhci_esdhc_data, },
+#endif
+#ifdef CONFIG_MMC_SDHCI_OF_HLWD
+ { .compatible = "nintendo,hollywood-sdhci", .data = &sdhci_hlwd, },
+#endif
+ { .compatible = "generic-sdhci", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, sdhci_of_match);
+
#ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
/*
@@ -128,7 +143,7 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev,
const struct of_device_id *match)
{
struct device_node *np = ofdev->dev.of_node;
- struct sdhci_of_data *sdhci_of_data = match->data;
+ struct sdhci_data *data = match->data;
struct sdhci_host *host;
struct sdhci_of_host *of_host;
const __be32 *clk;
@@ -158,9 +173,14 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev,
}
host->hw_name = dev_name(&ofdev->dev);
- if (sdhci_of_data) {
- host->quirks = sdhci_of_data->quirks;
- host->ops = &sdhci_of_data->ops;
+ if (data) {
+ host->quirks = data->quirks;
+ host->ops = data->ops;
+ if (data->init) {
+ ret = data->init(host, data);
+ if (ret)
+ goto err_of_init;
+ }
}
if (of_get_property(np, "sdhci,auto-cmd12", NULL))
@@ -184,6 +204,9 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev,
return 0;
err_add_host:
+ if (data && data->exit)
+ data->exit(host);
+err_of_init:
irq_dispose_mapping(host->irq);
err_no_irq:
iounmap(host->ioaddr);
@@ -195,7 +218,12 @@ err_addr_map:
static int __devexit sdhci_of_remove(struct platform_device *ofdev)
{
struct sdhci_host *host = dev_get_drvdata(&ofdev->dev);
+ const struct of_device_id *match =
+ of_match_device(sdhci_of_match, &ofdev->dev);
+ struct sdhci_data *data = match->data;
+ if (data && data->exit)
+ data->exit(host);
sdhci_remove_host(host, 0);
sdhci_free_host(host);
irq_dispose_mapping(host->irq);
@@ -203,20 +231,6 @@ static int __devexit sdhci_of_remove(struct platform_device *ofdev)
return 0;
}
-static const struct of_device_id sdhci_of_match[] = {
-#ifdef CONFIG_MMC_SDHCI_OF_ESDHC
- { .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc, },
- { .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc, },
- { .compatible = "fsl,esdhc", .data = &sdhci_esdhc, },
-#endif
-#ifdef CONFIG_MMC_SDHCI_OF_HLWD
- { .compatible = "nintendo,hollywood-sdhci", .data = &sdhci_hlwd, },
-#endif
- { .compatible = "generic-sdhci", },
- {},
-};
-MODULE_DEVICE_TABLE(of, sdhci_of_match);
-
static struct of_platform_driver sdhci_of_driver = {
.driver = {
.name = "sdhci-of",
@@ -72,18 +72,20 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
return of_host->clock / 256 / 16;
}
-struct sdhci_of_data sdhci_esdhc = {
+static struct sdhci_ops sdhci_esdhc_ops = {
+ .read_l = sdhci_be32bs_readl,
+ .read_w = esdhc_readw,
+ .read_b = sdhci_be32bs_readb,
+ .write_l = sdhci_be32bs_writel,
+ .write_w = esdhc_writew,
+ .write_b = esdhc_writeb,
+ .set_clock = esdhc_set_clock,
+ .enable_dma = esdhc_of_enable_dma,
+ .get_max_clock = esdhc_of_get_max_clock,
+ .get_min_clock = esdhc_of_get_min_clock,
+};
+
+struct sdhci_of_data sdhci_esdhc_data = {
.quirks = ESDHC_DEFAULT_QUIRKS,
- .ops = {
- .read_l = sdhci_be32bs_readl,
- .read_w = esdhc_readw,
- .read_b = sdhci_be32bs_readb,
- .write_l = sdhci_be32bs_writel,
- .write_w = esdhc_writew,
- .write_b = esdhc_writeb,
- .set_clock = esdhc_set_clock,
- .enable_dma = esdhc_of_enable_dma,
- .get_max_clock = esdhc_of_get_max_clock,
- .get_min_clock = esdhc_of_get_min_clock,
- },
+ .ops = &sdhci_esdhc_ops,
};
@@ -51,15 +51,17 @@ static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg)
udelay(SDHCI_HLWD_WRITE_DELAY);
}
-struct sdhci_of_data sdhci_hlwd = {
+static struct sdhci_ops sdhci_hlwd_ops = {
+ .read_l = sdhci_be32bs_readl,
+ .read_w = sdhci_be32bs_readw,
+ .read_b = sdhci_be32bs_readb,
+ .write_l = sdhci_hlwd_writel,
+ .write_w = sdhci_hlwd_writew,
+ .write_b = sdhci_hlwd_writeb,
+};
+
+struct sdhci_of_data sdhci_hlwd_data = {
.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
SDHCI_QUIRK_32BIT_DMA_SIZE,
- .ops = {
- .read_l = sdhci_be32bs_readl,
- .read_w = sdhci_be32bs_readw,
- .read_b = sdhci_be32bs_readb,
- .write_l = sdhci_hlwd_writel,
- .write_w = sdhci_hlwd_writew,
- .write_b = sdhci_hlwd_writeb,
- },
+ .ops = &sdhci_hlwd_ops,
};
@@ -19,11 +19,6 @@
#include <linux/types.h>
#include "sdhci.h"
-struct sdhci_of_data {
- unsigned int quirks;
- struct sdhci_ops ops;
-};
-
struct sdhci_of_host {
unsigned int clock;
u16 xfer_mode_shadow;
@@ -36,7 +31,7 @@ extern void sdhci_be32bs_writel(struct sdhci_host *host, u32 val, int reg);
extern void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg);
extern void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg);
-extern struct sdhci_of_data sdhci_esdhc;
-extern struct sdhci_of_data sdhci_hlwd;
+extern struct sdhci_data sdhci_esdhc_data;
+extern struct sdhci_data sdhci_hlwd_data;
#endif /* __SDHCI_OF_H */
@@ -30,7 +30,6 @@
#include <linux/mmc/host.h>
#include <linux/io.h>
-#include <linux/mmc/sdhci-pltfm.h>
#include "sdhci.h"
#include "sdhci-pltfm.h"
@@ -53,7 +52,7 @@ static struct sdhci_ops sdhci_pltfm_ops = {
#include <linux/of_device.h>
static const struct of_device_id sdhci_dt_ids[] = {
#ifdef CONFIG_MMC_SDHCI_TEGRA
- { .compatible = "nvidia,tegra250-sdhci", .data = &sdhci_tegra_dt_pdata },
+ { .compatible = "nvidia,tegra250-sdhci", .data = &sdhci_tegra_dt_data },
#endif
{ }
};
@@ -75,18 +74,18 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
{
const struct platform_device_id *platid = platform_get_device_id(pdev);
const struct of_device_id *dtid = sdhci_get_of_device_id(pdev);
- struct sdhci_pltfm_data *pdata;
+ struct sdhci_data *data;
struct sdhci_host *host;
struct sdhci_pltfm_host *pltfm_host;
struct resource *iomem;
int ret;
if (platid && platid->driver_data)
- pdata = (void *)platid->driver_data;
+ data = (void *)platid->driver_data;
else if (dtid && dtid->data)
- pdata = dtid->data;
+ data = dtid->data;
else
- pdata = pdev->dev.platform_data;
+ data = pdev->dev.platform_data;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iomem) {
@@ -112,12 +111,12 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
pltfm_host = sdhci_priv(host);
host->hw_name = "platform";
- if (pdata && pdata->ops)
- host->ops = pdata->ops;
+ if (data && data->ops)
+ host->ops = data->ops;
else
host->ops = &sdhci_pltfm_ops;
- if (pdata)
- host->quirks = pdata->quirks;
+ if (data)
+ host->quirks = data->quirks;
host->irq = platform_get_irq(pdev, 0);
if (!request_mem_region(iomem->start, resource_size(iomem),
@@ -134,8 +133,8 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
goto err_remap;
}
- if (pdata && pdata->init) {
- ret = pdata->init(host, pdata);
+ if (data && data->init) {
+ ret = data->init(host, data);
if (ret)
goto err_plat_init;
}
@@ -149,8 +148,8 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
return 0;
err_add_host:
- if (pdata && pdata->exit)
- pdata->exit(host);
+ if (data && data->exit)
+ data->exit(host);
err_plat_init:
iounmap(host->ioaddr);
err_remap:
@@ -166,18 +165,18 @@ static int __devexit sdhci_pltfm_remove(struct platform_device *pdev)
{
const struct platform_device_id *platid = platform_get_device_id(pdev);
const struct of_device_id *dtid = sdhci_get_of_device_id(pdev);
- struct sdhci_pltfm_data *pdata;
+ struct sdhci_data *data;
struct sdhci_host *host = platform_get_drvdata(pdev);
struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
int dead;
u32 scratch;
if (platid && platid->driver_data)
- pdata = (void *)platid->driver_data;
+ data = (void *)platid->driver_data;
else if (dtid && dtid->data)
- pdata = dtid->data;
+ data = dtid->data;
else
- pdata = pdev->dev.platform_data;
+ data = pdev->dev.platform_data;
dead = 0;
scratch = readl(host->ioaddr + SDHCI_INT_STATUS);
@@ -185,8 +184,8 @@ static int __devexit sdhci_pltfm_remove(struct platform_device *pdev)
dead = 1;
sdhci_remove_host(host, dead);
- if (pdata && pdata->exit)
- pdata->exit(host);
+ if (data && data->exit)
+ data->exit(host);
iounmap(host->ioaddr);
release_mem_region(iomem->start, resource_size(iomem));
sdhci_free_host(host);
@@ -198,16 +197,16 @@ static int __devexit sdhci_pltfm_remove(struct platform_device *pdev)
static const struct platform_device_id sdhci_pltfm_ids[] = {
{ "sdhci", },
#ifdef CONFIG_MMC_SDHCI_CNS3XXX
- { "sdhci-cns3xxx", (kernel_ulong_t)&sdhci_cns3xxx_pdata },
+ { "sdhci-cns3xxx", (kernel_ulong_t)&sdhci_cns3xxx_data },
#endif
#ifdef CONFIG_MMC_SDHCI_ESDHC_IMX
- { "sdhci-esdhc-imx", (kernel_ulong_t)&sdhci_esdhc_imx_pdata },
+ { "sdhci-esdhc-imx", (kernel_ulong_t)&sdhci_esdhc_imx_data },
#endif
#ifdef CONFIG_MMC_SDHCI_DOVE
- { "sdhci-dove", (kernel_ulong_t)&sdhci_dove_pdata },
+ { "sdhci-dove", (kernel_ulong_t)&sdhci_dove_data },
#endif
#ifdef CONFIG_MMC_SDHCI_TEGRA
- { "sdhci-tegra", (kernel_ulong_t)&sdhci_tegra_pdata },
+ { "sdhci-tegra", (kernel_ulong_t)&sdhci_tegra_data },
#endif
{ },
};
@@ -8,22 +8,22 @@
* published by the Free Software Foundation.
*/
-#ifndef _DRIVERS_MMC_SDHCI_PLTFM_H
-#define _DRIVERS_MMC_SDHCI_PLTFM_H
+#ifndef _SDHCI_PLTFM_H
+#define _SDHCI_PLTFM_H
#include <linux/clk.h>
#include <linux/types.h>
-#include <linux/mmc/sdhci-pltfm.h>
+#include "sdhci.h"
struct sdhci_pltfm_host {
struct clk *clk;
u32 scratchpad; /* to handle quirks across io-accessor calls */
};
-extern struct sdhci_pltfm_data sdhci_cns3xxx_pdata;
-extern struct sdhci_pltfm_data sdhci_esdhc_imx_pdata;
-extern struct sdhci_pltfm_data sdhci_dove_pdata;
-extern struct sdhci_pltfm_data sdhci_tegra_pdata;
-extern struct sdhci_pltfm_data sdhci_tegra_dt_pdata;
+extern struct sdhci_data sdhci_cns3xxx_data;
+extern struct sdhci_data sdhci_esdhc_imx_data;
+extern struct sdhci_data sdhci_dove_data;
+extern struct sdhci_data sdhci_tegra_data;
+extern struct sdhci_data sdhci_tegra_dt_data;
-#endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */
+#endif /* _SDHCI_PLTFM_H */
@@ -120,7 +120,7 @@ static int tegra_sdhci_8bit(struct sdhci_host *host, int bus_width)
static int tegra_sdhci_pltfm_init(struct sdhci_host *host,
- struct sdhci_pltfm_data *pdata)
+ struct sdhci_data *data)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc));
@@ -214,7 +214,7 @@ out:
}
static int tegra_sdhci_pltfm_dt_init(struct sdhci_host *host,
- struct sdhci_pltfm_data *pdata)
+ struct sdhci_data *data)
{
struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc));
struct tegra_sdhci_platform_data *plat;
@@ -237,7 +237,7 @@ static int tegra_sdhci_pltfm_dt_init(struct sdhci_host *host,
dev_info(&pdev->dev, "using gpios cd=%i, wp=%i power=%i\n",
plat->cd_gpio, plat->wp_gpio, plat->power_gpio);
- return tegra_sdhci_pltfm_init(host, pdata);
+ return tegra_sdhci_pltfm_init(host, data);
}
static void tegra_sdhci_pltfm_exit(struct sdhci_host *host)
@@ -285,7 +285,7 @@ static struct sdhci_ops tegra_sdhci_ops = {
.platform_8bit_width = tegra_sdhci_8bit,
};
-struct sdhci_pltfm_data sdhci_tegra_pdata = {
+struct sdhci_data sdhci_tegra_data = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
SDHCI_QUIRK_NO_HISPD_BIT |
@@ -295,7 +295,7 @@ struct sdhci_pltfm_data sdhci_tegra_pdata = {
.exit = tegra_sdhci_pltfm_exit,
};
-struct sdhci_pltfm_data sdhci_tegra_dt_pdata = {
+struct sdhci_data sdhci_tegra_dt_data = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
SDHCI_QUIRK_NO_HISPD_BIT |
@@ -201,6 +201,21 @@
#define SDHCI_MAX_DIV_SPEC_200 256
#define SDHCI_MAX_DIV_SPEC_300 2046
+/**
+ * struct sdhci_data - SDHCI platform/OF specific information & hooks
+ * @ops: optional pointer to the platform/OF provided SDHCI ops
+ * @quirks: optional SDHCI quirks
+ * @init: optional hook that is called during device probe, before the
+ * driver tries to access any SDHCI registers
+ * @exit: optional hook that is called during device removal
+ */
+struct sdhci_data {
+ struct sdhci_ops *ops;
+ unsigned int quirks;
+ int (*init)(struct sdhci_host *host, struct sdhci_data *data);
+ void (*exit)(struct sdhci_host *host);
+};
+
struct sdhci_ops {
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
u32 (*read_l)(struct sdhci_host *host, int reg);
deleted file mode 100644
@@ -1,35 +0,0 @@
-/*
- * Platform data declarations for the sdhci-pltfm driver.
- *
- * Copyright (c) 2010 MontaVista Software, LLC.
- *
- * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- */
-
-#ifndef _SDHCI_PLTFM_H
-#define _SDHCI_PLTFM_H
-
-struct sdhci_ops;
-struct sdhci_host;
-
-/**
- * struct sdhci_pltfm_data - SDHCI platform-specific information & hooks
- * @ops: optional pointer to the platform-provided SDHCI ops
- * @quirks: optional SDHCI quirks
- * @init: optional hook that is called during device probe, before the
- * driver tries to access any SDHCI registers
- * @exit: optional hook that is called during device removal
- */
-struct sdhci_pltfm_data {
- struct sdhci_ops *ops;
- unsigned int quirks;
- int (*init)(struct sdhci_host *host, struct sdhci_pltfm_data *pdata);
- void (*exit)(struct sdhci_host *host);
-};
-
-#endif /* _SDHCI_PLTFM_H */
This patch is motivated by the work of supporting sdhci-esdhc-imx as an OF device. The sdhci-esdhc-imx driver was well designed to be able to work with either platform or OF bus, with a little effort to decouple the driver from sdhci_pltfm_data. Like sdhci_ops works for both platform and OF sdhci driver, the patch demonstrates that sdhci_pltfm_data and sdhci_of_data can be consolidated into sdhci_data, which should work for both. As one of the results, header linux/mmc/sdhci-pltfm.h can be deleted. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> --- drivers/mmc/host/sdhci-cns3xxx.c | 3 +- drivers/mmc/host/sdhci-dove.c | 2 +- drivers/mmc/host/sdhci-esdhc-imx.c | 19 ++++++------- drivers/mmc/host/sdhci-of-core.c | 50 +++++++++++++++++++++++------------- drivers/mmc/host/sdhci-of-esdhc.c | 28 +++++++++++--------- drivers/mmc/host/sdhci-of-hlwd.c | 20 ++++++++------ drivers/mmc/host/sdhci-of.h | 9 +----- drivers/mmc/host/sdhci-pltfm.c | 47 ++++++++++++++++----------------- drivers/mmc/host/sdhci-pltfm.h | 18 ++++++------ drivers/mmc/host/sdhci-tegra.c | 10 +++--- drivers/mmc/host/sdhci.h | 15 +++++++++++ include/linux/mmc/sdhci-pltfm.h | 35 ------------------------- 12 files changed, 123 insertions(+), 133 deletions(-) delete mode 100644 include/linux/mmc/sdhci-pltfm.h