linux/kernel.h: sync min, max, min3, max3 macros with Linux

U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does.  This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.

Many of references of those macros must be fixed to suppress warnings.
We have two options:
 - Use min, max, min3, max3 only when the arguments have the same type
   (or add casts to the arguments)
 - Use min_t/max_t instead with the appropriate type for the first
   argument

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini <trini@ti.com>

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 2640607..90b8ed0 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -610,7 +610,7 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
 #endif
 
 	cfg->cfg.f_min = 400000;
-	cfg->cfg.f_max = min(gd->arch.sdhc_clk, 52000000);
+	cfg->cfg.f_max = min(gd->arch.sdhc_clk, (u32)52000000);
 
 	cfg->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
 
diff --git a/drivers/mmc/pxa_mmc_gen.c b/drivers/mmc/pxa_mmc_gen.c
index 1f29757..25ab0b1 100644
--- a/drivers/mmc/pxa_mmc_gen.c
+++ b/drivers/mmc/pxa_mmc_gen.c
@@ -197,7 +197,7 @@ static int pxa_mmc_do_read_xfer(struct mmc *mmc, struct mmc_data *data)
 	while (len) {
 		/* The controller has data ready */
 		if (readl(&regs->i_reg) & MMC_I_REG_RXFIFO_RD_REQ) {
-			size = min(len, PXAMMC_FIFO_SIZE);
+			size = min(len, (uint32_t)PXAMMC_FIFO_SIZE);
 			len -= size;
 			size /= 4;
 
@@ -233,14 +233,14 @@ static int pxa_mmc_do_write_xfer(struct mmc *mmc, struct mmc_data *data)
 	while (len) {
 		/* The controller is ready to receive data */
 		if (readl(&regs->i_reg) & MMC_I_REG_TXFIFO_WR_REQ) {
-			size = min(len, PXAMMC_FIFO_SIZE);
+			size = min(len, (uint32_t)PXAMMC_FIFO_SIZE);
 			len -= size;
 			size /= 4;
 
 			while (size--)
 				writel(*buf++, &regs->txfifo);
 
-			if (min(len, PXAMMC_FIFO_SIZE) < 32)
+			if (min(len, (uint32_t)PXAMMC_FIFO_SIZE) < 32)
 				writel(MMC_PRTBUF_BUF_PART_FULL, &regs->prtbuf);
 		}