ARM: OMAP2+: hsmmc.c: Remove dead code

Most platforms using OMAP hsmmc driver have switched to device tree
for passing platform data to omap_hsmmc.c driver.

The hsmmc.c file in mach-omap2 exists only to support pandora board
which uses wl1251 driver in legacy platform data mode.

Hence, remove the dead code not used by the pandora board.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index be517b048762b4fe1bb5467ebaea61a19cc1386e..5b614388d72f4b7ca8be1c851f1369f719ce2c29 100644 (file)
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -32,120 +32,6 @@ static u16 control_devconf1_offset;
 
 #define HSMMC_NAME_LEN 9
 
-static void omap_hsmmc1_before_set_reg(struct device *dev,
-                                      int power_on, int vdd)
-{
-       u32 reg, prog_io;
-       struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
-       if (mmc->remux)
-               mmc->remux(dev, power_on);
-
-       /*
-        * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
-        * card with Vcc regulator (from twl4030 or whatever).  OMAP has both
-        * 1.8V and 3.0V modes, controlled by the PBIAS register.
-        *
-        * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which
-        * is most naturally TWL VSIM; those pins also use PBIAS.
-        *
-        * FIXME handle VMMC1A as needed ...
-        */
-       if (power_on) {
-               if (cpu_is_omap2430()) {
-                       reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1);
-                       if ((1 << vdd) >= MMC_VDD_30_31)
-                               reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE;
-                       else
-                               reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE;
-                       omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1);
-               }
-
-               if (mmc->internal_clock) {
-                       reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-                       reg |= OMAP2_MMCSDIO1ADPCLKISEL;
-                       omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0);
-               }
-
-               reg = omap_ctrl_readl(control_pbias_offset);
-               if (cpu_is_omap3630()) {
-                       /* Set MMC I/O to 52MHz */
-                       prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1);
-                       prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL;
-                       omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1);
-               } else {
-                       reg |= OMAP2_PBIASSPEEDCTRL0;
-               }
-               reg &= ~OMAP2_PBIASLITEPWRDNZ0;
-               omap_ctrl_writel(reg, control_pbias_offset);
-       } else {
-               reg = omap_ctrl_readl(control_pbias_offset);
-               reg &= ~OMAP2_PBIASLITEPWRDNZ0;
-               omap_ctrl_writel(reg, control_pbias_offset);
-       }
-}
-
-static void omap_hsmmc1_after_set_reg(struct device *dev, int power_on, int vdd)
-{
-       u32 reg;
-
-       /* 100ms delay required for PBIAS configuration */
-       msleep(100);
-
-       if (power_on) {
-               reg = omap_ctrl_readl(control_pbias_offset);
-               reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0);
-               if ((1 << vdd) <= MMC_VDD_165_195)
-                       reg &= ~OMAP2_PBIASLITEVMODE0;
-               else
-                       reg |= OMAP2_PBIASLITEVMODE0;
-               omap_ctrl_writel(reg, control_pbias_offset);
-       } else {
-               reg = omap_ctrl_readl(control_pbias_offset);
-               reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 |
-                       OMAP2_PBIASLITEVMODE0);
-               omap_ctrl_writel(reg, control_pbias_offset);
-       }
-}
-
-static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc)
-{
-       u32 reg;
-
-       reg = omap_ctrl_readl(control_devconf1_offset);
-       if (mmc->internal_clock)
-               reg |= OMAP2_MMCSDIO2ADPCLKISEL;
-       else
-               reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
-       omap_ctrl_writel(reg, control_devconf1_offset);
-}
-
-static void hsmmc2_before_set_reg(struct device *dev, int power_on, int vdd)
-{
-       struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
-       if (mmc->remux)
-               mmc->remux(dev, power_on);
-
-       if (power_on)
-               hsmmc2_select_input_clk_src(mmc);
-}
-
-static int am35x_hsmmc2_set_power(struct device *dev, int power_on, int vdd)
-{
-       struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
-       if (power_on)
-               hsmmc2_select_input_clk_src(mmc);
-
-       return 0;
-}
-
-static int nop_mmc_set_power(struct device *dev, int power_on, int vdd)
-{
-       return 0;
-}
-
 static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
                                        struct omap_hsmmc_platform_data *mmc)
 {
@@ -157,101 +43,11 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
                return -ENOMEM;
        }
 
-       if (c->name)
-               strncpy(hc_name, c->name, HSMMC_NAME_LEN);
-       else
-               snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
-                                                               c->mmc, 1);
+       snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i", c->mmc, 1);
        mmc->name = hc_name;
        mmc->caps = c->caps;
-       mmc->internal_clock = !c->ext_clock;
        mmc->reg_offset = 0;
 
-       if (c->cover_only) {
-               /* detect if mobile phone cover removed */
-               mmc->gpio_cd = -EINVAL;
-               mmc->gpio_cod = c->gpio_cd;
-       } else {
-               /* card detect pin on the mmc socket itself */
-               mmc->gpio_cd = c->gpio_cd;
-               mmc->gpio_cod = -EINVAL;
-       }
-       mmc->gpio_wp = c->gpio_wp;
-
-       mmc->remux = c->remux;
-       mmc->init_card = c->init_card;
-
-       if (c->nonremovable)
-               mmc->nonremovable = 1;
-
-       /*
-        * NOTE:  MMC slots should have a Vcc regulator set up.
-        * This may be from a TWL4030-family chip, another
-        * controllable regulator, or a fixed supply.
-        *
-        * temporary HACK: ocr_mask instead of fixed supply
-        */
-       if (soc_is_am35xx())
-               mmc->ocr_mask = MMC_VDD_165_195 |
-                                        MMC_VDD_26_27 |
-                                        MMC_VDD_27_28 |
-                                        MMC_VDD_29_30 |
-                                        MMC_VDD_30_31 |
-                                        MMC_VDD_31_32;
-       else
-               mmc->ocr_mask = c->ocr_mask;
-
-       if (!soc_is_am35xx())
-               mmc->features |= HSMMC_HAS_PBIAS;
-
-       switch (c->mmc) {
-       case 1:
-               if (mmc->features & HSMMC_HAS_PBIAS) {
-                       /* on-chip level shifting via PBIAS0/PBIAS1 */
-                       mmc->before_set_reg =
-                                       omap_hsmmc1_before_set_reg;
-                       mmc->after_set_reg =
-                                       omap_hsmmc1_after_set_reg;
-               }
-
-               if (soc_is_am35xx())
-                       mmc->set_power = nop_mmc_set_power;
-
-               /* OMAP3630 HSMMC1 supports only 4-bit */
-               if (cpu_is_omap3630() &&
-                               (c->caps & MMC_CAP_8_BIT_DATA)) {
-                       c->caps &= ~MMC_CAP_8_BIT_DATA;
-                       c->caps |= MMC_CAP_4_BIT_DATA;
-                       mmc->caps = c->caps;
-               }
-               break;
-       case 2:
-               if (soc_is_am35xx())
-                       mmc->set_power = am35x_hsmmc2_set_power;
-
-               if (c->ext_clock)
-                       c->transceiver = 1;
-               if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
-                       c->caps &= ~MMC_CAP_8_BIT_DATA;
-                       c->caps |= MMC_CAP_4_BIT_DATA;
-               }
-               if (mmc->features & HSMMC_HAS_PBIAS) {
-                       /* off-chip level shifting, or none */
-                       mmc->before_set_reg = hsmmc2_before_set_reg;
-                       mmc->after_set_reg = NULL;
-               }
-               break;
-       case 3:
-       case 4:
-       case 5:
-               mmc->before_set_reg = NULL;
-               mmc->after_set_reg = NULL;
-               break;
-       default:
-               pr_err("MMC%d configuration not supported!\n", c->mmc);
-               kfree(hc_name);
-               return -ENODEV;
-       }
        return 0;
 }
 
@@ -260,7 +56,6 @@ static int omap_hsmmc_done;
 void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
 {
        struct platform_device *pdev;
-       struct omap_hsmmc_platform_data *mmc_pdata;
        int res;
 
        if (omap_hsmmc_done != 1)
@@ -269,32 +64,12 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
        omap_hsmmc_done++;
 
        for (; c->mmc; c++) {
-               if (!c->deferred)
-                       continue;
-
                pdev = c->pdev;
                if (!pdev)
                        continue;
-
-               mmc_pdata = pdev->dev.platform_data;
-               if (!mmc_pdata)
-                       continue;
-
-               if (c->cover_only) {
-                       /* detect if mobile phone cover removed */
-                       mmc_pdata->gpio_cd = -EINVAL;
-                       mmc_pdata->gpio_cod = c->gpio_cd;
-               } else {
-                       /* card detect pin on the mmc socket itself */
-                       mmc_pdata->gpio_cd = c->gpio_cd;
-                       mmc_pdata->gpio_cod = -EINVAL;
-               }
-               mmc_pdata->gpio_wp = c->gpio_wp;
-
                res = omap_device_register(pdev);
                if (res)
-                       pr_err("Could not late init MMC %s\n",
-                              c->name);
+                       pr_err("Could not late init MMC\n");
        }
 }
 
@@ -336,13 +111,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
        if (oh->dev_attr != NULL) {
                mmc_dev_attr = oh->dev_attr;
                mmc_data->controller_flags = mmc_dev_attr->flags;
-               /*
-                * erratum 2.1.1.128 doesn't apply if board has
-                * a transceiver is attached
-                */
-               if (hsmmcinfo->transceiver)
-                       mmc_data->controller_flags &=
-                               ~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ;
        }
 
        pdev = platform_device_alloc(name, ctrl_nr - 1);
@@ -367,9 +135,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
 
        hsmmcinfo->pdev = pdev;
 
-       if (hsmmcinfo->deferred)
-               goto free_mmc;
-
        res = omap_device_register(pdev);
        if (res) {
                pr_err("Could not register od for %s\n", name);

diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 69b619ddc7650c7eac714898b0219a925005a7b5..af9af5094ec33811e0fa5fba562e87a51e7568ff 100644 (file)
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -12,18 +12,9 @@ struct omap2_hsmmc_info {
        u8      mmc;            /* controller 1/2/3 */
        u32     caps;           /* 4/8 wires and any additional host
                                 * capabilities OR'd (ref. linux/mmc/host.h) */
-       bool    transceiver;    /* MMC-2 option */
-       bool    ext_clock;      /* use external pin for input clock */
-       bool    cover_only;     /* No card detect - just cover switch */
-       bool    nonremovable;   /* Nonremovable e.g. eMMC */
-       bool    deferred;       /* mmc needs a deferred probe */
        int     gpio_cd;        /* or -EINVAL */
        int     gpio_wp;        /* or -EINVAL */
-       char    *name;          /* or NULL for default */
        struct platform_device *pdev;   /* mmc controller instance */
-       int     ocr_mask;       /* temporary HACK */
-       /* Remux (pad configuration) when powering on/off */
-       void (*remux)(struct device *dev, int power_on);
        /* init some special card */
        void (*init_card)(struct mmc_card *card);
 };