From 07b0b9c00cc8f8e981df35ac4720057469a8d3c8 Mon Sep 17 00:00:00 2001
From: Jaehoon Chung <jh80.chung@samsung.com>
Date: Fri, 30 Dec 2016 15:30:16 +0900
Subject: [PATCH] mmc: change the set_ios return type from void to int

To maintain consistency, set_ios type of legacy mmc_ops changed to int.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
---
 drivers/mmc/arm_pl180_mmci.c | 4 +++-
 drivers/mmc/bfin_sdh.c       | 4 +++-
 drivers/mmc/davinci_mmc.c    | 4 +++-
 drivers/mmc/dw_mmc.c         | 5 ++---
 drivers/mmc/fsl_esdhc.c      | 3 ++-
 drivers/mmc/ftsdc010_mci.c   | 4 +++-
 drivers/mmc/gen_atmel_mci.c  | 4 +++-
 drivers/mmc/mmc_spi.c        | 3 ++-
 drivers/mmc/mvebu_mmc.c      | 4 +++-
 drivers/mmc/mxcmmc.c         | 4 +++-
 drivers/mmc/mxsmmc.c         | 4 +++-
 drivers/mmc/omap_hsmmc.c     | 6 ++++--
 drivers/mmc/pxa_mmc_gen.c    | 8 +++++---
 drivers/mmc/s3c_sdi.c        | 6 ++++--
 drivers/mmc/sdhci.c          | 5 ++---
 drivers/mmc/sh_mmcif.c       | 4 +++-
 drivers/mmc/sh_sdhi.c        | 6 ++++--
 drivers/mmc/sunxi_mmc.c      | 6 ++++--
 drivers/mmc/tegra_mmc.c      | 4 +++-
 include/mmc.h                | 2 +-
 20 files changed, 60 insertions(+), 30 deletions(-)

diff --git a/drivers/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c
index e64ac3c..ddf8383 100644
--- a/drivers/mmc/arm_pl180_mmci.c
+++ b/drivers/mmc/arm_pl180_mmci.c
@@ -275,7 +275,7 @@ static int mmc_host_reset(struct mmc *dev)
 	return 0;
 }
 
-static void host_set_ios(struct mmc *dev)
+static int  host_set_ios(struct mmc *dev)
 {
 	struct pl180_mmc_host *host = dev->priv;
 	u32 sdi_clkcr;
@@ -333,6 +333,8 @@ static void host_set_ios(struct mmc *dev)
 
 	writel(sdi_clkcr, &host->base->clock);
 	udelay(CLK_CHANGE_DELAY);
+
+	return 0;
 }
 
 static const struct mmc_ops arm_pl180_mmci_ops = {
diff --git a/drivers/mmc/bfin_sdh.c b/drivers/mmc/bfin_sdh.c
index 993a00c..1627dca 100644
--- a/drivers/mmc/bfin_sdh.c
+++ b/drivers/mmc/bfin_sdh.c
@@ -234,7 +234,7 @@ static void sdh_set_clk(unsigned long clk)
 		bfin_write_SDH_CLK_CTL(clk_ctl & ~CLK_E);
 }
 
-static void bfin_sdh_set_ios(struct mmc *mmc)
+static int bfin_sdh_set_ios(struct mmc *mmc)
 {
 	u16 cfg = 0;
 	u16 clk_ctl = 0;
@@ -250,6 +250,8 @@ static void bfin_sdh_set_ios(struct mmc *mmc)
 	}
 	bfin_write_SDH_CLK_CTL(clk_ctl);
 	sdh_set_clk(mmc->clock);
+
+	return 0;
 }
 
 static int bfin_sdh_init(struct mmc *mmc)
diff --git a/drivers/mmc/davinci_mmc.c b/drivers/mmc/davinci_mmc.c
index b495c75..9edb668 100644
--- a/drivers/mmc/davinci_mmc.c
+++ b/drivers/mmc/davinci_mmc.c
@@ -348,7 +348,7 @@ static int dmmc_init(struct mmc *mmc)
 }
 
 /* Set buswidth or clock as indicated by the GENERIC_MMC framework */
-static void dmmc_set_ios(struct mmc *mmc)
+static int dmmc_set_ios(struct mmc *mmc)
 {
 	struct davinci_mmc *host = mmc->priv;
 	struct davinci_mmc_regs *regs = host->reg_base;
@@ -362,6 +362,8 @@ static void dmmc_set_ios(struct mmc *mmc)
 	/* Set clock speed */
 	if (mmc->clock)
 		dmmc_set_clock(mmc, mmc->clock);
+
+	return 0;
 }
 
 static const struct mmc_ops dmmc_ops = {
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index d6ac46c..700f764 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -388,7 +388,7 @@ static int dwmci_set_ios(struct udevice *dev)
 {
 	struct mmc *mmc = mmc_get_mmc_dev(dev);
 #else
-static void dwmci_set_ios(struct mmc *mmc)
+static int dwmci_set_ios(struct mmc *mmc)
 {
 #endif
 	struct dwmci_host *host = (struct dwmci_host *)mmc->priv;
@@ -421,9 +421,8 @@ static void dwmci_set_ios(struct mmc *mmc)
 
 	if (host->clksel)
 		host->clksel(host);
-#ifdef CONFIG_DM_MMC_OPS
+
 	return 0;
-#endif
 }
 
 static int dwmci_init(struct mmc *mmc)
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 9796d39..7defeb4 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -592,7 +592,7 @@ static void esdhc_clock_control(struct mmc *mmc, bool enable)
 }
 #endif
 
-static void esdhc_set_ios(struct mmc *mmc)
+static int esdhc_set_ios(struct mmc *mmc)
 {
 	struct fsl_esdhc_priv *priv = mmc->priv;
 	struct fsl_esdhc *regs = priv->esdhc_regs;
@@ -614,6 +614,7 @@ static void esdhc_set_ios(struct mmc *mmc)
 	else if (mmc->bus_width == 8)
 		esdhc_setbits32(&regs->proctl, PROCTL_DTW_8);
 
+	return 0;
 }
 
 static int esdhc_init(struct mmc *mmc)
diff --git a/drivers/mmc/ftsdc010_mci.c b/drivers/mmc/ftsdc010_mci.c
index e88c632..652a718 100644
--- a/drivers/mmc/ftsdc010_mci.c
+++ b/drivers/mmc/ftsdc010_mci.c
@@ -251,7 +251,7 @@ static int ftsdc010_request(struct mmc *mmc, struct mmc_cmd *cmd,
 	return ret;
 }
 
-static void ftsdc010_set_ios(struct mmc *mmc)
+static int ftsdc010_set_ios(struct mmc *mmc)
 {
 	struct ftsdc010_chip *chip = mmc->priv;
 	struct ftsdc010_mmc __iomem *regs = chip->regs;
@@ -270,6 +270,8 @@ static void ftsdc010_set_ios(struct mmc *mmc)
 		setbits_le32(&regs->bwr, FTSDC010_BWR_MODE_1BIT);
 		break;
 	}
+
+	return 0;
 }
 
 static int ftsdc010_init(struct mmc *mmc)
diff --git a/drivers/mmc/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c
index cca0b04..7dc4a5d 100644
--- a/drivers/mmc/gen_atmel_mci.c
+++ b/drivers/mmc/gen_atmel_mci.c
@@ -336,7 +336,7 @@ mci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 }
 
 /* Entered into mmc structure during driver init */
-static void mci_set_ios(struct mmc *mmc)
+static int mci_set_ios(struct mmc *mmc)
 {
 	struct atmel_mci_priv *priv = mmc->priv;
 	atmel_mci_t *mci = priv->mci;
@@ -370,6 +370,8 @@ static void mci_set_ios(struct mmc *mmc)
 
 		writel(busw << 7 | MMCI_BF(SCDSEL, MCI_BUS), &mci->sdcr);
 	}
+
+	return 0;
 }
 
 /* Entered into mmc structure during driver init */
diff --git a/drivers/mmc/mmc_spi.c b/drivers/mmc/mmc_spi.c
index 2510117..a9d95fb 100644
--- a/drivers/mmc/mmc_spi.c
+++ b/drivers/mmc/mmc_spi.c
@@ -236,13 +236,14 @@ done:
 	return ret;
 }
 
-static void mmc_spi_set_ios(struct mmc *mmc)
+static int mmc_spi_set_ios(struct mmc *mmc)
 {
 	struct spi_slave *spi = mmc->priv;
 
 	debug("%s: clock %u\n", __func__, mmc->clock);
 	if (mmc->clock)
 		spi_set_speed(spi, mmc->clock);
+	return 0;
 }
 
 static int mmc_spi_init_p(struct mmc *mmc)
diff --git a/drivers/mmc/mvebu_mmc.c b/drivers/mmc/mvebu_mmc.c
index a2792ac..3c7fb21 100644
--- a/drivers/mmc/mvebu_mmc.c
+++ b/drivers/mmc/mvebu_mmc.c
@@ -316,12 +316,14 @@ static void mvebu_mmc_set_bus(unsigned int bus)
 	mvebu_mmc_write(SDIO_HOST_CTRL, ctrl_reg);
 }
 
-static void mvebu_mmc_set_ios(struct mmc *mmc)
+static int mvebu_mmc_set_ios(struct mmc *mmc)
 {
 	debug("%s: bus[%d] clock[%d]\n", DRIVER_NAME,
 	      mmc->bus_width, mmc->clock);
 	mvebu_mmc_set_bus(mmc->bus_width);
 	mvebu_mmc_set_clk(mmc->clock);
+
+	return 0;
 }
 
 /*
diff --git a/drivers/mmc/mxcmmc.c b/drivers/mmc/mxcmmc.c
index 5a385a3..dcf17c5 100644
--- a/drivers/mmc/mxcmmc.c
+++ b/drivers/mmc/mxcmmc.c
@@ -448,7 +448,7 @@ static void mxcmci_set_clk_rate(struct mxcmci_host *host, unsigned int clk_ios)
 	writel((prescaler << 4) | divider, &host->base->clk_rate);
 }
 
-static void mxcmci_set_ios(struct mmc *mmc)
+static int mxcmci_set_ios(struct mmc *mmc)
 {
 	struct mxcmci_host *host = mmc->priv;
 	if (mmc->bus_width == 4)
@@ -464,6 +464,8 @@ static void mxcmci_set_ios(struct mmc *mmc)
 	}
 
 	host->clock = mmc->clock;
+
+	return 0;
 }
 
 static int mxcmci_init(struct mmc *mmc)
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c
index 0896028..fe1fe70 100644
--- a/drivers/mmc/mxsmmc.c
+++ b/drivers/mmc/mxsmmc.c
@@ -304,7 +304,7 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 	return 0;
 }
 
-static void mxsmmc_set_ios(struct mmc *mmc)
+static int mxsmmc_set_ios(struct mmc *mmc)
 {
 	struct mxsmmc_priv *priv = mmc->priv;
 	struct mxs_ssp_regs *ssp_regs = priv->regs;
@@ -331,6 +331,8 @@ static void mxsmmc_set_ios(struct mmc *mmc)
 
 	debug("MMC%d: Set %d bits bus width\n",
 		mmc->block_dev.devnum, mmc->bus_width);
+
+	return 0;
 }
 
 static int mxsmmc_init(struct mmc *mmc)
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 0a1ee40..b326846 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -511,7 +511,7 @@ static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
 	return 0;
 }
 
-static void omap_hsmmc_set_ios(struct mmc *mmc)
+static int omap_hsmmc_set_ios(struct mmc *mmc)
 {
 	struct hsmmc *mmc_base;
 	unsigned int dsor = 0;
@@ -559,10 +559,12 @@ static void omap_hsmmc_set_ios(struct mmc *mmc)
 	while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
 		if (get_timer(0) - start > MAX_RETRY_MS) {
 			printf("%s: timedout waiting for ics!\n", __func__);
-			return;
+			return -ETIMEDOUT;
 		}
 	}
 	writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
+
+	return 0;
 }
 
 #ifdef OMAP_HSMMC_USE_GPIO
diff --git a/drivers/mmc/pxa_mmc_gen.c b/drivers/mmc/pxa_mmc_gen.c
index a5462e2..f627553 100644
--- a/drivers/mmc/pxa_mmc_gen.c
+++ b/drivers/mmc/pxa_mmc_gen.c
@@ -313,7 +313,7 @@ static int pxa_mmc_request(struct mmc *mmc, struct mmc_cmd *cmd,
 	return 0;
 }
 
-static void pxa_mmc_set_ios(struct mmc *mmc)
+static int pxa_mmc_set_ios(struct mmc *mmc)
 {
 	struct pxa_mmc_priv *priv = mmc->priv;
 	struct pxa_mmc_regs *regs = priv->regs;
@@ -322,13 +322,13 @@ static void pxa_mmc_set_ios(struct mmc *mmc)
 
 	if (!mmc->clock) {
 		pxa_mmc_stop_clock(mmc);
-		return;
+		return 0;
 	}
 
 	/* PXA3xx can do 26MHz with special settings. */
 	if (mmc->clock == 26000000) {
 		writel(0x7, &regs->clkrt);
-		return;
+		return 0;
 	}
 
 	/* Set clock to the card the usual way. */
@@ -342,6 +342,8 @@ static void pxa_mmc_set_ios(struct mmc *mmc)
 	}
 
 	writel(pxa_mmc_clock, &regs->clkrt);
+
+	return 0;
 }
 
 static int pxa_mmc_init(struct mmc *mmc)
diff --git a/drivers/mmc/s3c_sdi.c b/drivers/mmc/s3c_sdi.c
index 1b8358a..faf7b83 100644
--- a/drivers/mmc/s3c_sdi.c
+++ b/drivers/mmc/s3c_sdi.c
@@ -207,7 +207,7 @@ error:
 	return ret;
 }
 
-static void s3cmmc_set_ios(struct mmc *mmc)
+static int s3cmmc_set_ios(struct mmc *mmc)
 {
 	struct s3c24x0_sdi *sdi_regs = s3c24x0_get_base_sdi();
 	uint32_t divider = 0;
@@ -215,7 +215,7 @@ static void s3cmmc_set_ios(struct mmc *mmc)
 	wide_bus = (mmc->bus_width == 4);
 
 	if (!mmc->clock)
-		return;
+		return 0;
 
 	divider = DIV_ROUND_UP(get_PCLK(), mmc->clock);
 	if (divider)
@@ -223,6 +223,8 @@ static void s3cmmc_set_ios(struct mmc *mmc)
 
 	writel(divider, &sdi_regs->sdipre);
 	mdelay(125);
+
+	return 0;
 }
 
 static int s3cmmc_init(struct mmc *mmc)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index dadee15..9125e5d 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -424,7 +424,7 @@ static int sdhci_set_ios(struct udevice *dev)
 {
 	struct mmc *mmc = mmc_get_mmc_dev(dev);
 #else
-static void sdhci_set_ios(struct mmc *mmc)
+static int sdhci_set_ios(struct mmc *mmc)
 {
 #endif
 	u32 ctrl;
@@ -462,9 +462,8 @@ static void sdhci_set_ios(struct mmc *mmc)
 		ctrl &= ~SDHCI_CTRL_HISPD;
 
 	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
-#ifdef CONFIG_DM_MMC_OPS
+
 	return 0;
-#endif
 }
 
 static int sdhci_init(struct mmc *mmc)
diff --git a/drivers/mmc/sh_mmcif.c b/drivers/mmc/sh_mmcif.c
index 69ded9e..1ff59f0 100644
--- a/drivers/mmc/sh_mmcif.c
+++ b/drivers/mmc/sh_mmcif.c
@@ -539,7 +539,7 @@ static int sh_mmcif_request(struct mmc *mmc, struct mmc_cmd *cmd,
 	return ret;
 }
 
-static void sh_mmcif_set_ios(struct mmc *mmc)
+static int sh_mmcif_set_ios(struct mmc *mmc)
 {
 	struct sh_mmcif_host *host = mmc->priv;
 
@@ -554,6 +554,8 @@ static void sh_mmcif_set_ios(struct mmc *mmc)
 		host->bus_width = MMC_BUS_WIDTH_1;
 
 	debug("clock = %d, buswidth = %d\n", mmc->clock, mmc->bus_width);
+
+	return 0;
 }
 
 static int sh_mmcif_init(struct mmc *mmc)
diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c
index 78e2ef6..25224e2 100644
--- a/drivers/mmc/sh_sdhi.c
+++ b/drivers/mmc/sh_sdhi.c
@@ -608,14 +608,14 @@ static int sh_sdhi_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 	return ret;
 }
 
-static void sh_sdhi_set_ios(struct mmc *mmc)
+static int sh_sdhi_set_ios(struct mmc *mmc)
 {
 	int ret;
 	struct sh_sdhi_host *host = mmc_priv(mmc);
 
 	ret = sh_sdhi_clock_control(host, mmc->clock);
 	if (ret)
-		return;
+		return -EINVAL;
 
 	if (mmc->bus_width == 4)
 		sh_sdhi_writew(host, SDHI_OPTION, ~OPT_BUS_WIDTH_1 &
@@ -625,6 +625,8 @@ static void sh_sdhi_set_ios(struct mmc *mmc)
 			       sh_sdhi_readw(host, SDHI_OPTION));
 
 	debug("clock = %d, buswidth = %d\n", mmc->clock, mmc->bus_width);
+
+	return 0;
 }
 
 static int sh_sdhi_initialize(struct mmc *mmc)
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index b8716c9..fd3fc2a 100644
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -227,7 +227,7 @@ static int mmc_config_clock(struct mmc *mmc)
 	return 0;
 }
 
-static void sunxi_mmc_set_ios(struct mmc *mmc)
+static int sunxi_mmc_set_ios(struct mmc *mmc)
 {
 	struct sunxi_mmc_host *mmchost = mmc->priv;
 
@@ -237,7 +237,7 @@ static void sunxi_mmc_set_ios(struct mmc *mmc)
 	/* Change clock first */
 	if (mmc->clock && mmc_config_clock(mmc) != 0) {
 		mmchost->fatal_err = 1;
-		return;
+		return -EINVAL;
 	}
 
 	/* Change bus width */
@@ -247,6 +247,8 @@ static void sunxi_mmc_set_ios(struct mmc *mmc)
 		writel(0x1, &mmchost->reg->width);
 	else
 		writel(0x0, &mmchost->reg->width);
+
+	return 0;
 }
 
 static int sunxi_mmc_core_init(struct mmc *mmc)
diff --git a/drivers/mmc/tegra_mmc.c b/drivers/mmc/tegra_mmc.c
index 97b1154..0211dc7 100644
--- a/drivers/mmc/tegra_mmc.c
+++ b/drivers/mmc/tegra_mmc.c
@@ -408,7 +408,7 @@ out:
 	priv->clock = clock;
 }
 
-static void tegra_mmc_set_ios(struct mmc *mmc)
+static int tegra_mmc_set_ios(struct mmc *mmc)
 {
 	struct tegra_mmc_priv *priv = mmc->priv;
 	unsigned char ctrl;
@@ -438,6 +438,8 @@ static void tegra_mmc_set_ios(struct mmc *mmc)
 
 	writeb(ctrl, &priv->reg->hostctl);
 	debug("mmc_set_ios: hostctl = %08X\n", ctrl);
+
+	return 0;
 }
 
 static void tegra_mmc_pad_init(struct tegra_mmc_priv *priv)
diff --git a/include/mmc.h b/include/mmc.h
index 1720955..fad12d6 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -376,7 +376,7 @@ int mmc_getwp(struct mmc *mmc);
 struct mmc_ops {
 	int (*send_cmd)(struct mmc *mmc,
 			struct mmc_cmd *cmd, struct mmc_data *data);
-	void (*set_ios)(struct mmc *mmc);
+	int (*set_ios)(struct mmc *mmc);
 	int (*init)(struct mmc *mmc);
 	int (*getcd)(struct mmc *mmc);
 	int (*getwp)(struct mmc *mmc);