From: shawn.guo@linaro.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 20/34] mtd: mxc_nand: remove cpu_is_xxx by using platform_device_id
Date: Thu, 20 Sep 2012 14:45:33 +0800 [thread overview]
Message-ID: <1348123547-31082-21-git-send-email-shawn.guo@linaro.org> (raw)
In-Reply-To: <1348123547-31082-1-git-send-email-shawn.guo@linaro.org>
It changes the driver to use platform_device_id rather than cpu_is_xxx
to determine the controller type, and updates the platform code
accordingly.
As the result, mach/hardware.h inclusion gets removed from the driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: linux-mtd at lists.infradead.org
---
arch/arm/mach-imx/clk-imx21.c | 2 +-
arch/arm/mach-imx/clk-imx25.c | 2 +-
arch/arm/mach-imx/clk-imx27.c | 2 +-
arch/arm/mach-imx/clk-imx31.c | 2 +-
arch/arm/mach-imx/clk-imx35.c | 2 +-
arch/arm/mach-imx/clk-imx51-imx53.c | 2 +-
arch/arm/mach-imx/devices/devices-common.h | 1 +
arch/arm/mach-imx/devices/platform-mxc_nand.c | 20 +++---
arch/arm/mach-imx/imx27-dt.c | 2 +-
drivers/mtd/nand/mxc_nand.c | 86 +++++++++++++++----------
10 files changed, 71 insertions(+), 50 deletions(-)
diff --git a/arch/arm/mach-imx/clk-imx21.c b/arch/arm/mach-imx/clk-imx21.c
index 09fc31c..96a4788 100644
--- a/arch/arm/mach-imx/clk-imx21.c
+++ b/arch/arm/mach-imx/clk-imx21.c
@@ -162,7 +162,7 @@ int __init mx21_clocks_init(unsigned long lref, unsigned long href)
clk_register_clkdev(clk[lcdc_hclk_gate], "ahb", "imx-fb.0");
clk_register_clkdev(clk[usb_gate], "per", "imx21-hcd.0");
clk_register_clkdev(clk[usb_hclk_gate], "ahb", "imx21-hcd.0");
- clk_register_clkdev(clk[nfc_gate], NULL, "mxc_nand.0");
+ clk_register_clkdev(clk[nfc_gate], NULL, "imx21-nand.0");
clk_register_clkdev(clk[dma_hclk_gate], "ahb", "imx-dma");
clk_register_clkdev(clk[dma_gate], "ipg", "imx-dma");
clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0");
diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
index 54edac0..1aea073 100644
--- a/arch/arm/mach-imx/clk-imx25.c
+++ b/arch/arm/mach-imx/clk-imx25.c
@@ -198,7 +198,7 @@ int __init mx25_clocks_init(void)
clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
clk_register_clkdev(clk[usbotg_ahb], "ahb", "fsl-usb2-udc");
clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
- clk_register_clkdev(clk[nfc_ipg_per], NULL, "mxc_nand.0");
+ clk_register_clkdev(clk[nfc_ipg_per], NULL, "imx25-nand.0");
/* i.mx25 has the i.mx35 type cspi */
clk_register_clkdev(clk[cspi1_ipg], NULL, "imx35-cspi.0");
clk_register_clkdev(clk[cspi2_ipg], NULL, "imx35-cspi.1");
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index d9aac0f..6ae2868 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -239,7 +239,7 @@ int __init mx27_clocks_init(unsigned long fref)
clk_register_clkdev(clk[usb_ahb_gate], "ahb", "mxc-ehci.2");
clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0");
clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1");
- clk_register_clkdev(clk[nfc_baud_gate], NULL, "mxc_nand.0");
+ clk_register_clkdev(clk[nfc_baud_gate], NULL, "imx27-nand.0");
clk_register_clkdev(clk[vpu_baud_gate], "per", "imx-vpu");
clk_register_clkdev(clk[vpu_ahb_gate], "ahb", "imx-vpu");
clk_register_clkdev(clk[dma_ahb_gate], "ahb", "imx-dma");
diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c
index 76e6462..729d1a9 100644
--- a/arch/arm/mach-imx/clk-imx31.c
+++ b/arch/arm/mach-imx/clk-imx31.c
@@ -127,7 +127,7 @@ int __init mx31_clocks_init(unsigned long fref)
clk_register_clkdev(clk[rtc_gate], NULL, "mxc_rtc");
clk_register_clkdev(clk[epit1_gate], "epit", NULL);
clk_register_clkdev(clk[epit2_gate], "epit", NULL);
- clk_register_clkdev(clk[nfc], NULL, "mxc_nand.0");
+ clk_register_clkdev(clk[nfc], NULL, "imx27-nand.0");
clk_register_clkdev(clk[ipu_gate], NULL, "ipu-core");
clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb");
clk_register_clkdev(clk[kpp_gate], NULL, "imx-keypad");
diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index e411153..2f15c6d 100644
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -252,7 +252,7 @@ int __init mx35_clocks_init()
clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
clk_register_clkdev(clk[usbotg_gate], "ahb", "fsl-usb2-udc");
clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0");
- clk_register_clkdev(clk[nfc_div], NULL, "mxc_nand.0");
+ clk_register_clkdev(clk[nfc_div], NULL, "imx25-nand.0");
clk_prepare_enable(clk[spba_gate]);
clk_prepare_enable(clk[gpio1_gate]);
diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index 54303a8..5399682 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -270,7 +270,7 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
clk_register_clkdev(clk[usboh3_per_gate], "per", "fsl-usb2-udc");
clk_register_clkdev(clk[usboh3_gate], "ipg", "fsl-usb2-udc");
clk_register_clkdev(clk[usboh3_gate], "ahb", "fsl-usb2-udc");
- clk_register_clkdev(clk[nfc_gate], NULL, "mxc_nand");
+ clk_register_clkdev(clk[nfc_gate], NULL, "imx51-nand");
clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0");
clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1");
clk_register_clkdev(clk[ssi3_ipg_gate], NULL, "imx-ssi.2");
diff --git a/arch/arm/mach-imx/devices/devices-common.h b/arch/arm/mach-imx/devices/devices-common.h
index b0f4747..d9717b3 100644
--- a/arch/arm/mach-imx/devices/devices-common.h
+++ b/arch/arm/mach-imx/devices/devices-common.h
@@ -239,6 +239,7 @@ struct platform_device *__init imx_add_mxc_mmc(
#include <linux/platform_data/mtd-mxc_nand.h>
struct imx_mxc_nand_data {
+ const char *devid;
/*
* id is traditionally 0, but -1 is more appropriate. We use -1 for new
* machines but don't change existing devices as the nand device usually
diff --git a/arch/arm/mach-imx/devices/platform-mxc_nand.c b/arch/arm/mach-imx/devices/platform-mxc_nand.c
index eb73b82..cec6961 100644
--- a/arch/arm/mach-imx/devices/platform-mxc_nand.c
+++ b/arch/arm/mach-imx/devices/platform-mxc_nand.c
@@ -10,15 +10,17 @@
#include <mach/hardware.h>
#include "devices-common.h"
-#define imx_mxc_nand_data_entry_single(soc, _size) \
+#define imx_mxc_nand_data_entry_single(soc, _devid, _size) \
{ \
+ .devid = _devid, \
.iobase = soc ## _NFC_BASE_ADDR, \
.iosize = _size, \
.irq = soc ## _INT_NFC \
}
-#define imx_mxc_nandv3_data_entry_single(soc, _size) \
+#define imx_mxc_nandv3_data_entry_single(soc, _devid, _size) \
{ \
+ .devid = _devid, \
.id = -1, \
.iobase = soc ## _NFC_BASE_ADDR, \
.iosize = _size, \
@@ -28,32 +30,32 @@
#ifdef CONFIG_SOC_IMX21
const struct imx_mxc_nand_data imx21_mxc_nand_data __initconst =
- imx_mxc_nand_data_entry_single(MX21, SZ_4K);
+ imx_mxc_nand_data_entry_single(MX21, "imx21-nand", SZ_4K);
#endif /* ifdef CONFIG_SOC_IMX21 */
#ifdef CONFIG_SOC_IMX25
const struct imx_mxc_nand_data imx25_mxc_nand_data __initconst =
- imx_mxc_nand_data_entry_single(MX25, SZ_8K);
+ imx_mxc_nand_data_entry_single(MX25, "imx25-nand", SZ_8K);
#endif /* ifdef CONFIG_SOC_IMX25 */
#ifdef CONFIG_SOC_IMX27
const struct imx_mxc_nand_data imx27_mxc_nand_data __initconst =
- imx_mxc_nand_data_entry_single(MX27, SZ_4K);
+ imx_mxc_nand_data_entry_single(MX27, "imx27-nand", SZ_4K);
#endif /* ifdef CONFIG_SOC_IMX27 */
#ifdef CONFIG_SOC_IMX31
const struct imx_mxc_nand_data imx31_mxc_nand_data __initconst =
- imx_mxc_nand_data_entry_single(MX31, SZ_4K);
+ imx_mxc_nand_data_entry_single(MX31, "imx27-nand", SZ_4K);
#endif
#ifdef CONFIG_SOC_IMX35
const struct imx_mxc_nand_data imx35_mxc_nand_data __initconst =
- imx_mxc_nand_data_entry_single(MX35, SZ_8K);
+ imx_mxc_nand_data_entry_single(MX35, "imx25-nand", SZ_8K);
#endif
#ifdef CONFIG_SOC_IMX51
const struct imx_mxc_nand_data imx51_mxc_nand_data __initconst =
- imx_mxc_nandv3_data_entry_single(MX51, SZ_16K);
+ imx_mxc_nandv3_data_entry_single(MX51, "imx51-nand", SZ_16K);
#endif
struct platform_device *__init imx_add_mxc_nand(
@@ -76,7 +78,7 @@ struct platform_device *__init imx_add_mxc_nand(
.flags = IORESOURCE_IRQ,
},
};
- return imx_add_platform_device("mxc_nand", data->id,
+ return imx_add_platform_device(data->devid, data->id,
res + !data->axibase,
ARRAY_SIZE(res) - !data->axibase,
pdata, sizeof(*pdata));
diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c
index 43fbf86..a6c288e 100644
--- a/arch/arm/mach-imx/imx27-dt.c
+++ b/arch/arm/mach-imx/imx27-dt.c
@@ -29,7 +29,7 @@ static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI2_BASE_ADDR, "imx27-cspi.1", NULL),
OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI3_BASE_ADDR, "imx27-cspi.2", NULL),
OF_DEV_AUXDATA("fsl,imx27-wdt", MX27_WDOG_BASE_ADDR, "imx2-wdt.0", NULL),
- OF_DEV_AUXDATA("fsl,imx27-nand", MX27_NFC_BASE_ADDR, "mxc_nand.0", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-nand", MX27_NFC_BASE_ADDR, "imx27-nand.0", NULL),
{ /* sentinel */ }
};
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 5683604..d5f8f01 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -37,15 +37,9 @@
#include <asm/mach/flash.h>
#include <linux/platform_data/mtd-mxc_nand.h>
-#include <mach/hardware.h>
#define DRIVER_NAME "mxc_nand"
-#define nfc_is_v21() (cpu_is_mx25() || cpu_is_mx35())
-#define nfc_is_v1() (cpu_is_mx31() || cpu_is_mx27() || cpu_is_mx21())
-#define nfc_is_v3_2() (cpu_is_mx51() || cpu_is_mx53())
-#define nfc_is_v3() nfc_is_v3_2()
-
/* Addresses for NFC registers */
#define NFC_V1_V2_BUF_SIZE (host->regs + 0x00)
#define NFC_V1_V2_BUF_ADDR (host->regs + 0x04)
@@ -1260,6 +1254,45 @@ static const struct mxc_nand_devtype_data imx51_nand_devtype_data = {
.eccsize = 0,
};
+static inline int is_imx21_nfc(struct mxc_nand_host *host)
+{
+ return host->devtype_data == &imx21_nand_devtype_data;
+}
+
+static inline int is_imx27_nfc(struct mxc_nand_host *host)
+{
+ return host->devtype_data == &imx27_nand_devtype_data;
+}
+
+static inline int is_imx25_nfc(struct mxc_nand_host *host)
+{
+ return host->devtype_data == &imx25_nand_devtype_data;
+}
+
+static inline int is_imx51_nfc(struct mxc_nand_host *host)
+{
+ return host->devtype_data == &imx51_nand_devtype_data;
+}
+
+static struct platform_device_id mxcnd_devtype[] = {
+ {
+ .name = "imx21-nand",
+ .driver_data = (kernel_ulong_t) &imx21_nand_devtype_data,
+ }, {
+ .name = "imx27-nand",
+ .driver_data = (kernel_ulong_t) &imx27_nand_devtype_data,
+ }, {
+ .name = "imx25-nand",
+ .driver_data = (kernel_ulong_t) &imx25_nand_devtype_data,
+ }, {
+ .name = "imx51-nand",
+ .driver_data = (kernel_ulong_t) &imx51_nand_devtype_data,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(platform, mxcnd_devtype);
+
#ifdef CONFIG_OF_MTD
static const struct of_device_id mxcnd_dt_ids[] = {
{
@@ -1311,30 +1344,6 @@ static int __init mxcnd_probe_dt(struct mxc_nand_host *host)
}
#endif
-static int __init mxcnd_probe_pdata(struct mxc_nand_host *host)
-{
- struct mxc_nand_platform_data *pdata = host->dev->platform_data;
-
- if (!pdata)
- return -ENODEV;
-
- host->pdata = *pdata;
-
- if (nfc_is_v1()) {
- if (cpu_is_mx21())
- host->devtype_data = &imx21_nand_devtype_data;
- else
- host->devtype_data = &imx27_nand_devtype_data;
- } else if (nfc_is_v21()) {
- host->devtype_data = &imx25_nand_devtype_data;
- } else if (nfc_is_v3_2()) {
- host->devtype_data = &imx51_nand_devtype_data;
- } else
- BUG();
-
- return 0;
-}
-
static int __init mxcnd_probe(struct platform_device *pdev)
{
struct nand_chip *this;
@@ -1396,8 +1405,16 @@ static int __init mxcnd_probe(struct platform_device *pdev)
host->main_area0 = host->base;
err = mxcnd_probe_dt(host);
- if (err > 0)
- err = mxcnd_probe_pdata(host);
+ if (err > 0) {
+ struct mxc_nand_platform_data *pdata = pdev->dev.platform_data;
+ if (pdata) {
+ host->pdata = *pdata;
+ host->devtype_data = (struct mxc_nand_devtype_data *)
+ pdev->id_entry->driver_data;
+ } else {
+ err = -ENODEV;
+ }
+ }
if (err < 0)
goto eirq;
@@ -1473,7 +1490,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
}
/* first scan to find the device and get the page size */
- if (nand_scan_ident(mtd, nfc_is_v21() ? 4 : 1, NULL)) {
+ if (nand_scan_ident(mtd, is_imx25_nfc(host) ? 4 : 1, NULL)) {
err = -ENXIO;
goto escan;
}
@@ -1487,7 +1504,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
this->ecc.layout = host->devtype_data->ecclayout_4k;
if (this->ecc.mode == NAND_ECC_HW) {
- if (nfc_is_v1())
+ if (is_imx21_nfc(host) || is_imx27_nfc(host))
this->ecc.strength = 1;
else
this->ecc.strength = (host->eccsize == 4) ? 4 : 8;
@@ -1549,6 +1566,7 @@ static struct platform_driver mxcnd_driver = {
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(mxcnd_dt_ids),
},
+ .id_table = mxcnd_devtype,
.remove = __devexit_p(mxcnd_remove),
};
--
1.7.9.5
next prev parent reply other threads:[~2012-09-20 6:45 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 6:45 [PATCH v2 00/34] i.MX multi-platform support Shawn Guo
2012-09-20 6:45 ` [PATCH v2 01/34] ARM: imx: include board headers in the same folder Shawn Guo
2012-09-20 6:45 ` [PATCH v2 02/34] ARM: imx: move iomux drivers and headers into mach-imx Shawn Guo
2012-09-20 6:45 ` [PATCH v2 03/34] ARM: imx: remove unnecessary inclusion from device-imx*.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 04/34] ARM: imx: move platform device code into mach-imx Shawn Guo
2012-09-20 6:45 ` [PATCH v2 05/34] ARM: imx: merge plat-mxc " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 06/34] ARM: imx: include common.h rather than mach/common.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 07/34] ARM: imx: ARM: imx: include cpuidle.h rather than mach/cpuidle.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 08/34] ARM: imx: include iim.h rather than mach/iim.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 09/34] ARM: imx: include iram.h rather than mach/iram.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 10/34] ARM: imx: include ulpi.h rather than mach/ulpi.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 11/34] media: mx1_camera: remove the driver Shawn Guo
2012-09-20 12:56 ` Mauro Carvalho Chehab
2012-09-20 14:47 ` Shawn Guo
2012-09-20 6:45 ` [PATCH v2 12/34] ARM: imx: remove mach/dma-mx1-mx2.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 13/34] dma: ipu: rename mach/ipu.h to include/linux/dma/ipu-dma.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 14/34] dma: imx-sdma: remove unneeded mach/hardware.h inclusion Shawn Guo
2012-09-20 6:45 ` [PATCH v2 15/34] ASoC: imx-ssi: " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 16/34] usb: ehci-mxc: " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 17/34] video: mx3fb: " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 18/34] watchdog: imx2_wdt: " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 19/34] i2c: imx: remove cpu_is_xxx by using platform_device_id Shawn Guo
2012-09-20 6:45 ` Shawn Guo [this message]
2012-09-20 6:45 ` [PATCH v2 21/34] rtc: mxc_rtc: " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 22/34] dma: imx-dma: use devm_kzalloc and devm_request_irq Shawn Guo
2012-09-20 6:45 ` [PATCH v2 23/34] dma: imx-dma: retrieve MEM and IRQ from resources Shawn Guo
2012-09-20 6:45 ` [PATCH v2 24/34] dma: imx-dma: remove cpu_is_xxx by using platform_device_id Shawn Guo
2012-09-20 6:45 ` [PATCH v2 25/34] media: mx2_camera: remove dead code in mx2_camera_add_device Shawn Guo
2012-09-20 6:45 ` [PATCH v2 26/34] media: mx2_camera: use managed functions to clean up code Shawn Guo
2012-09-20 6:45 ` [PATCH v2 27/34] media: mx2_camera: remove cpu_is_xxx by using platform_device_id Shawn Guo
2012-09-27 19:03 ` Mauro Carvalho Chehab
2012-10-06 8:26 ` Shawn Guo
2012-10-06 14:39 ` Mauro Carvalho Chehab
2012-09-20 6:45 ` [PATCH v2 28/34] mmc: mxcmmc: " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 29/34] video: imxfb: " Shawn Guo
2012-09-20 6:45 ` [PATCH v2 30/34] ARM: imx: move debug macros to include/debug Shawn Guo
2012-09-20 6:45 ` [PATCH v2 31/34] ARM: imx: include hardware.h rather than mach/hardware.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 32/34] ARM: imx: remove header file mach/irqs.h Shawn Guo
2012-09-20 6:45 ` [PATCH v2 33/34] ARM: imx: call mxc_device_init() in soc specific function Shawn Guo
2012-09-20 6:45 ` [PATCH v2 34/34] ARM: imx: enable multi-platform build Shawn Guo
2012-09-20 7:39 ` [PATCH v2 00/34] i.MX multi-platform support Arnd Bergmann
2012-09-20 11:41 ` Mark Brown
2012-09-20 11:52 ` Shawn Guo
2012-09-20 12:47 ` Mark Brown
2012-09-20 13:36 ` Shawn Guo
2012-09-20 14:53 ` Shawn Guo
2012-09-20 15:56 ` Arnd Bergmann
2012-09-21 8:01 ` [alsa-devel] " Shawn Guo
2012-09-21 8:26 ` Olof Johansson
2012-09-21 16:46 ` Shawn Guo
2012-09-21 16:53 ` Shawn Guo
2012-09-22 7:41 ` Olof Johansson
2012-09-22 8:09 ` Olof Johansson
2012-09-22 9:34 ` Shawn Guo
2012-09-22 15:43 ` Mark Brown
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