From d3504fee73ec626117427afa08116d1dde21ba9d Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Mon, 18 Mar 2013 19:23:40 +0000
Subject: [PATCH] spi: Use spi_alloc_slave() in each SPI driver

Rather than each driver having its own way to allocate a SPI slave,
use the new allocation function everywhere. This will make it easier
to extend the interface without breaking drivers.

Signed-off-by: Simon Glass <sjg@chromium.org>
---
 drivers/spi/altera_spi.c    |  4 +---
 drivers/spi/andes_spi.c     |  4 +---
 drivers/spi/armada100_spi.c |  4 +---
 drivers/spi/atmel_spi.c     |  4 +---
 drivers/spi/bfin_spi.c      |  4 +---
 drivers/spi/bfin_spi6xx.c   |  4 +---
 drivers/spi/cf_qspi.c       |  4 +---
 drivers/spi/cf_spi.c        |  4 +---
 drivers/spi/davinci_spi.c   |  4 +---
 drivers/spi/exynos_spi.c    |  4 +---
 drivers/spi/fsl_espi.c      |  4 +---
 drivers/spi/kirkwood_spi.c  |  5 +----
 drivers/spi/mpc52xx_spi.c   |  5 +----
 drivers/spi/mpc8xxx_spi.c   |  5 +----
 drivers/spi/mxc_spi.c       |  4 +---
 drivers/spi/mxs_spi.c       |  4 +---
 drivers/spi/oc_tiny_spi.c   |  5 +----
 drivers/spi/omap3_spi.c     | 27 ++++++++++++++-------------
 drivers/spi/sh_spi.c        |  4 +---
 drivers/spi/soft_spi.c      |  4 +---
 drivers/spi/tegra_slink.c   |  4 +---
 drivers/spi/tegra_spi.c     |  4 +---
 drivers/spi/xilinx_spi.c    |  4 +---
 23 files changed, 36 insertions(+), 83 deletions(-)

diff --git a/drivers/spi/altera_spi.c b/drivers/spi/altera_spi.c
index 138d6f4b45..b53607a4ec 100644
--- a/drivers/spi/altera_spi.c
+++ b/drivers/spi/altera_spi.c
@@ -83,12 +83,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	altspi = malloc(sizeof(*altspi));
+	altspi = spi_alloc_slave(struct altera_spi_slave, bus, cs);
 	if (!altspi)
 		return NULL;
 
-	altspi->slave.bus = bus;
-	altspi->slave.cs = cs;
 	altspi->base = altera_spi_base_list[bus];
 	debug("%s: bus:%i cs:%i base:%lx\n", __func__,
 		bus, cs, altspi->base);
diff --git a/drivers/spi/andes_spi.c b/drivers/spi/andes_spi.c
index fdde13954b..c56377b635 100644
--- a/drivers/spi/andes_spi.c
+++ b/drivers/spi/andes_spi.c
@@ -53,12 +53,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	ds = malloc(sizeof(*ds));
+	ds = spi_alloc_slave(struct andes_spi_slave, bus, cs);
 	if (!ds)
 		return NULL;
 
-	ds->slave.bus = bus;
-	ds->slave.cs = cs;
 	ds->regs = (struct andes_spi_regs *)CONFIG_SYS_SPI_BASE;
 
 	/*
diff --git a/drivers/spi/armada100_spi.c b/drivers/spi/armada100_spi.c
index 7384c9cd2c..afdbe0508c 100644
--- a/drivers/spi/armada100_spi.c
+++ b/drivers/spi/armada100_spi.c
@@ -120,12 +120,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 {
 	struct armd_spi_slave *pss;
 
-	pss = malloc(sizeof(*pss));
+	pss = spi_alloc_slave(struct armd_spi_slave, bus, cs);
 	if (!pss)
 		return NULL;
 
-	pss->slave.bus = bus;
-	pss->slave.cs = cs;
 	pss->spi_reg = (struct ssp_reg *)SSP_REG_BASE(CONFIG_SYS_SSP_PORT);
 
 	pss->cr0 = SSCR0_MOTO | SSCR0_DATASIZE(DEFAULT_WORD_LEN) | SSCR0_SSE;
diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index ce7d460855..f4b1bad22e 100644
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -84,12 +84,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (mode & SPI_CPOL)
 		csrx |= ATMEL_SPI_CSRx_CPOL;
 
-	as = malloc(sizeof(struct atmel_spi_slave));
+	as = spi_alloc_slave(struct atmel_spi_slave, bus, cs);
 	if (!as)
 		return NULL;
 
-	as->slave.bus = bus;
-	as->slave.cs = cs;
 	as->regs = regs;
 	as->mr = ATMEL_SPI_MR_MSTR | ATMEL_SPI_MR_MODFDIS
 #if defined(CONFIG_AT91SAM9X5) || defined(CONFIG_AT91SAM9M10G45)
diff --git a/drivers/spi/bfin_spi.c b/drivers/spi/bfin_spi.c
index e080bec705..ab2e8b998b 100644
--- a/drivers/spi/bfin_spi.c
+++ b/drivers/spi/bfin_spi.c
@@ -182,12 +182,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 		default: return NULL;
 	}
 
-	bss = malloc(sizeof(*bss));
+	bss = spi_alloc_slave(struct bfin_spi_slave, bus, cs);
 	if (!bss)
 		return NULL;
 
-	bss->slave.bus = bus;
-	bss->slave.cs = cs;
 	bss->mmr_base = (void *)mmr_base;
 	bss->ctl = SPE | MSTR | TDBR_CORE;
 	if (mode & SPI_CPHA) bss->ctl |= CPHA;
diff --git a/drivers/spi/bfin_spi6xx.c b/drivers/spi/bfin_spi6xx.c
index fde3447426..c25c4a9aea 100644
--- a/drivers/spi/bfin_spi6xx.c
+++ b/drivers/spi/bfin_spi6xx.c
@@ -178,12 +178,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 		return NULL;
 	}
 
-	bss = malloc(sizeof(*bss));
+	bss = spi_alloc_slave(struct bfin_spi_slave, bus, cs);
 	if (!bss)
 		return NULL;
 
-	bss->slave.bus = bus;
-	bss->slave.cs = cs;
 	bss->regs = (struct bfin_spi_regs *)reg_base;
 	bss->control = SPI_CTL_EN | SPI_CTL_MSTR;
 	if (mode & SPI_CPHA)
diff --git a/drivers/spi/cf_qspi.c b/drivers/spi/cf_qspi.c
index 72dd1a520d..a37ac4e526 100644
--- a/drivers/spi/cf_qspi.c
+++ b/drivers/spi/cf_qspi.c
@@ -120,13 +120,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	dev = malloc(sizeof(struct cf_qspi_slave));
+	dev = spi_alloc_slave(struct cf_qspi_slave, bus, cs);
 	if (!dev)
 		return NULL;
 
 	/* Initialize to known value */
-	dev->slave.bus = bus;
-	dev->slave.cs  = cs;
 	dev->regs      = (qspi_t *)MMAP_QSPI;
 	dev->qmr       = 0;
 	dev->qwr       = 0;
diff --git a/drivers/spi/cf_spi.c b/drivers/spi/cf_spi.c
index a883da9368..afe791737c 100644
--- a/drivers/spi/cf_spi.c
+++ b/drivers/spi/cf_spi.c
@@ -330,12 +330,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	cfslave = malloc(sizeof(struct cf_spi_slave));
+	cfslave = spi_alloc_slave(struct cf_spi_slave, bus, cs);
 	if (!cfslave)
 		return NULL;
 
-	cfslave->slave.bus = bus;
-	cfslave->slave.cs = cs;
 	cfslave->baudrate = max_hz;
 
 	/* specific setup */
diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c
index 13aca52c7e..74792af035 100644
--- a/drivers/spi/davinci_spi.c
+++ b/drivers/spi/davinci_spi.c
@@ -44,12 +44,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	ds = malloc(sizeof(*ds));
+	ds = spi_alloc_slave(struct davinci_spi_slave, bus, cs);
 	if (!ds)
 		return NULL;
 
-	ds->slave.bus = bus;
-	ds->slave.cs = cs;
 	ds->regs = (struct davinci_spi_regs *)CONFIG_SYS_SPI_BASE;
 	ds->freq = max_hz;
 
diff --git a/drivers/spi/exynos_spi.c b/drivers/spi/exynos_spi.c
index be60ada2ba..51b3d30538 100644
--- a/drivers/spi/exynos_spi.c
+++ b/drivers/spi/exynos_spi.c
@@ -89,15 +89,13 @@ struct spi_slave *spi_setup_slave(unsigned int busnum, unsigned int cs,
 		return NULL;
 	}
 
-	spi_slave = malloc(sizeof(*spi_slave));
+	spi_slave = spi_alloc_slave(struct exynos_spi_slave, busnum, cs);
 	if (!spi_slave) {
 		debug("%s: Could not allocate spi_slave\n", __func__);
 		return NULL;
 	}
 
 	bus = &spi_bus[busnum];
-	spi_slave->slave.bus = busnum;
-	spi_slave->slave.cs = cs;
 	spi_slave->regs = bus->regs;
 	spi_slave->mode = mode;
 	spi_slave->periph_id = bus->periph_id;
diff --git a/drivers/spi/fsl_espi.c b/drivers/spi/fsl_espi.c
index eb99e90bec..28609eefeb 100644
--- a/drivers/spi/fsl_espi.c
+++ b/drivers/spi/fsl_espi.c
@@ -79,12 +79,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	fsl = malloc(sizeof(struct fsl_spi_slave));
+	fsl = spi_alloc_slave(struct fsl_spi_slave, bus, cs);
 	if (!fsl)
 		return NULL;
 
-	fsl->slave.bus = bus;
-	fsl->slave.cs = cs;
 	fsl->mode = mode;
 	fsl->max_transfer_length = ESPI_MAX_DATA_TRANSFER_LEN;
 
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c
index de81064b9d..caa91e3e81 100644
--- a/drivers/spi/kirkwood_spi.c
+++ b/drivers/spi/kirkwood_spi.c
@@ -49,13 +49,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	slave = malloc(sizeof(struct spi_slave));
+	slave = spi_alloc_slave_base(bus, cs);
 	if (!slave)
 		return NULL;
 
-	slave->bus = bus;
-	slave->cs = cs;
-
 	writel(~KWSPI_CSN_ACT | KWSPI_SMEMRDY, &spireg->ctrl);
 
 	/* calculate spi clock prescaller using max_hz */
diff --git a/drivers/spi/mpc52xx_spi.c b/drivers/spi/mpc52xx_spi.c
index 3e96b3f9f3..4b50bca880 100644
--- a/drivers/spi/mpc52xx_spi.c
+++ b/drivers/spi/mpc52xx_spi.c
@@ -48,13 +48,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 {
 	struct spi_slave *slave;
 
-	slave = malloc(sizeof(struct spi_slave));
+	slave = spi_alloc_slave_base(bus, cs);
 	if (!slave)
 		return NULL;
 
-	slave->bus = bus;
-	slave->cs = cs;
-
 	return slave;
 }
 
diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c
index 4e46041dff..6b0e3b46ec 100644
--- a/drivers/spi/mpc8xxx_spi.c
+++ b/drivers/spi/mpc8xxx_spi.c
@@ -45,13 +45,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	slave = malloc(sizeof(struct spi_slave));
+	slave = spi_alloc_slave_base(bus, cs);
 	if (!slave)
 		return NULL;
 
-	slave->bus = bus;
-	slave->cs = cs;
-
 	/*
 	 * TODO: Some of the code in spi_init() should probably move
 	 * here, or into spi_claim_bus() below.
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 859c43fee2..d792d8d493 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -408,7 +408,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (bus >= ARRAY_SIZE(spi_bases))
 		return NULL;
 
-	mxcs = calloc(sizeof(struct mxc_spi_slave), 1);
+	mxcs = spi_alloc_slave(struct mxc_spi_slave, bus, cs);
 	if (!mxcs) {
 		puts("mxc_spi: SPI Slave not allocated !\n");
 		return NULL;
@@ -424,8 +424,6 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 
 	cs = ret;
 
-	mxcs->slave.bus = bus;
-	mxcs->slave.cs = cs;
 	mxcs->base = spi_bases[bus];
 
 	ret = spi_cfg_mxc(mxcs, cs, max_hz, mode);
diff --git a/drivers/spi/mxs_spi.c b/drivers/spi/mxs_spi.c
index ffa3c1d693..aa999f9a94 100644
--- a/drivers/spi/mxs_spi.c
+++ b/drivers/spi/mxs_spi.c
@@ -77,15 +77,13 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 		return NULL;
 	}
 
-	mxs_slave = calloc(sizeof(struct mxs_spi_slave), 1);
+	mxs_slave = spi_alloc_slave(struct mxs_spi_slave, bus, cs);
 	if (!mxs_slave)
 		return NULL;
 
 	if (mxs_dma_init_channel(MXS_DMA_CHANNEL_AHB_APBH_SSP0 + bus))
 		goto err_init;
 
-	mxs_slave->slave.bus = bus;
-	mxs_slave->slave.cs = cs;
 	mxs_slave->max_khz = max_hz / 1000;
 	mxs_slave->mode = mode;
 	mxs_slave->regs = mxs_ssp_regs_by_bus(bus);
diff --git a/drivers/spi/oc_tiny_spi.c b/drivers/spi/oc_tiny_spi.c
index fc01fb83a2..6f7b1edd60 100644
--- a/drivers/spi/oc_tiny_spi.c
+++ b/drivers/spi/oc_tiny_spi.c
@@ -90,13 +90,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs) || gpio_request(cs, "tiny_spi"))
 		return NULL;
 
-	tiny_spi = malloc(sizeof(*tiny_spi));
+	tiny_spi = spi_alloc_slave(struct tiny_spi_slave, bus, cs);
 	if (!tiny_spi)
 		return NULL;
-	memset(tiny_spi, 0, sizeof(*tiny_spi));
 
-	tiny_spi->slave.bus = bus;
-	tiny_spi->slave.cs = cs;
 	tiny_spi->host = &tiny_spi_host_list[bus];
 	tiny_spi->mode = mode & (SPI_CPOL | SPI_CPHA);
 	tiny_spi->flg = mode & SPI_CS_HIGH ? 1 : 0;
diff --git a/drivers/spi/omap3_spi.c b/drivers/spi/omap3_spi.c
index 344d5b8a7e..80a4e4776c 100644
--- a/drivers/spi/omap3_spi.c
+++ b/drivers/spi/omap3_spi.c
@@ -80,12 +80,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 				  unsigned int max_hz, unsigned int mode)
 {
 	struct omap3_spi_slave	*ds;
-
-	ds = malloc(sizeof(struct omap3_spi_slave));
-	if (!ds) {
-		printf("SPI error: malloc of SPI structure failed\n");
-		return NULL;
-	}
+	struct mcspi *regs;
 
 	/*
 	 * OMAP3 McSPI (MultiChannel SPI) has 4 busses (modules)
@@ -98,21 +93,21 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 
 	switch (bus) {
 	case 0:
-		ds->regs = (struct mcspi *)OMAP3_MCSPI1_BASE;
+		regs = (struct mcspi *)OMAP3_MCSPI1_BASE;
 		break;
 #ifdef OMAP3_MCSPI2_BASE
 	case 1:
-		ds->regs = (struct mcspi *)OMAP3_MCSPI2_BASE;
+		regs = (struct mcspi *)OMAP3_MCSPI2_BASE;
 		break;
 #endif
 #ifdef OMAP3_MCSPI3_BASE 
 	case 2:
-		ds->regs = (struct mcspi *)OMAP3_MCSPI3_BASE;
+		regs = (struct mcspi *)OMAP3_MCSPI3_BASE;
 		break;
 #endif
 #ifdef OMAP3_MCSPI4_BASE
 	case 3:
-		ds->regs = (struct mcspi *)OMAP3_MCSPI4_BASE;
+		regs = (struct mcspi *)OMAP3_MCSPI4_BASE;
 		break;
 #endif
 	default:
@@ -120,7 +115,6 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 			Supported busses 0 - 3\n", bus);
 		return NULL;
 	}
-	ds->slave.bus = bus;
 
 	if (((bus == 0) && (cs > 3)) ||
 			((bus == 1) && (cs > 1)) ||
@@ -130,19 +124,26 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 			on bus %i\n", cs, bus);
 		return NULL;
 	}
-	ds->slave.cs = cs;
 
 	if (max_hz > OMAP3_MCSPI_MAX_FREQ) {
 		printf("SPI error: unsupported frequency %i Hz. \
 			Max frequency is 48 Mhz\n", max_hz);
 		return NULL;
 	}
-	ds->freq = max_hz;
 
 	if (mode > SPI_MODE_3) {
 		printf("SPI error: unsupported SPI mode %i\n", mode);
 		return NULL;
 	}
+
+	ds = spi_alloc_slave(struct omap3_spi_slave, bus, cs);
+	if (!ds) {
+		printf("SPI error: malloc of SPI structure failed\n");
+		return NULL;
+	}
+
+	ds->regs = regs;
+	ds->freq = max_hz;
 	ds->mode = mode;
 
 	return &ds->slave;
diff --git a/drivers/spi/sh_spi.c b/drivers/spi/sh_spi.c
index e944b23c2d..744afe3295 100644
--- a/drivers/spi/sh_spi.c
+++ b/drivers/spi/sh_spi.c
@@ -103,12 +103,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	ss = malloc(sizeof(struct spi_slave));
+	ss = spi_alloc_slave(struct sh_spi, bus, cs);
 	if (!ss)
 		return NULL;
 
-	ss->slave.bus = bus;
-	ss->slave.cs = cs;
 	ss->regs = (struct sh_spi_regs *)CONFIG_SH_SPI_BASE;
 
 	/* SPI sycle stop */
diff --git a/drivers/spi/soft_spi.c b/drivers/spi/soft_spi.c
index 13df8cb7de..a1b84b6e37 100644
--- a/drivers/spi/soft_spi.c
+++ b/drivers/spi/soft_spi.c
@@ -73,12 +73,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	if (!spi_cs_is_valid(bus, cs))
 		return NULL;
 
-	ss = malloc(sizeof(struct soft_spi_slave));
+	ss = spi_alloc_slave(struct soft_spi_slave, bus, cs);
 	if (!ss)
 		return NULL;
 
-	ss->slave.bus = bus;
-	ss->slave.cs = cs;
 	ss->mode = mode;
 
 	/* TODO: Use max_hz to limit the SCK rate */
diff --git a/drivers/spi/tegra_slink.c b/drivers/spi/tegra_slink.c
index 2c41fabe28..9da58774db 100644
--- a/drivers/spi/tegra_slink.c
+++ b/drivers/spi/tegra_slink.c
@@ -81,13 +81,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 		return NULL;
 	}
 
-	spi = malloc(sizeof(struct tegra_spi_slave));
+	spi = spi_alloc_slave(struct tegra_spi_slave, bus, cs);
 	if (!spi) {
 		printf("SPI error: malloc of SPI structure failed\n");
 		return NULL;
 	}
-	spi->slave.bus = bus;
-	spi->slave.cs = cs;
 	spi->ctrl = &spi_ctrls[bus];
 	if (!spi->ctrl) {
 		printf("SPI error: could not find controller for bus %d\n",
diff --git a/drivers/spi/tegra_spi.c b/drivers/spi/tegra_spi.c
index ce19095af0..05027af3bc 100644
--- a/drivers/spi/tegra_spi.c
+++ b/drivers/spi/tegra_spi.c
@@ -81,13 +81,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 		return NULL;
 	}
 
-	spi = malloc(sizeof(struct tegra_spi_slave));
+	spi = spi_alloc_slave(struct tegra_spi_slave, bus, cs);
 	if (!spi) {
 		printf("SPI error: malloc of SPI structure failed\n");
 		return NULL;
 	}
-	spi->slave.bus = bus;
-	spi->slave.cs = cs;
 #ifdef CONFIG_OF_CONTROL
 	int node = fdtdec_next_compatible(gd->fdt_blob, 0,
 					  COMPAT_NVIDIA_TEGRA20_SFLASH);
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index db01cc25f7..a82b056948 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -85,14 +85,12 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 		return NULL;
 	}
 
-	xilspi = malloc(sizeof(*xilspi));
+	xilspi = spi_alloc_slave(struct xilinx_spi_slave, bus, cs);
 	if (!xilspi) {
 		printf("XILSPI error: %s: malloc of SPI structure failed\n",
 				__func__);
 		return NULL;
 	}
-	xilspi->slave.bus = bus;
-	xilspi->slave.cs = cs;
 	xilspi->regs = (struct xilinx_spi_reg *)xilinx_spi_base_list[bus];
 	xilspi->freq = max_hz;
 	xilspi->mode = mode;
-- 
2.39.5