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drivers: spi:ti_qspi: change ti_qspi_slave to ti_qspi_priv for driver model conversion

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Changing the ti_qspi_priv structure and its instance names from
to priv for driver mode conversion.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
This commit is contained in:
Mugunthan V N 2015-12-23 20:39:34 +05:30 • committed by Jagan Teki
parent ec712f490d
commit 9c42558afb
1 changed files with 60 additions and 60 deletions
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120
drivers/spi/ti_qspi.c
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@ -85,8 +85,8 @@ struct ti_qspi_regs {
u32 data3; u32 data3;
}; };
/* ti qspi slave */ /* ti qspi priv */
struct ti_qspi_slave { struct ti_qspi_priv {
struct spi_slave slave; struct spi_slave slave;
struct ti_qspi_regs *base; struct ti_qspi_regs *base;
unsigned int mode; unsigned int mode;
@ -94,14 +94,14 @@ struct ti_qspi_slave {
u32 dc; u32 dc;
}; };
static inline struct ti_qspi_slave *to_ti_qspi_slave(struct spi_slave *slave) static inline struct ti_qspi_priv *to_ti_qspi_priv(struct spi_slave *slave)
{ {
return container_of(slave, struct ti_qspi_slave, slave); return container_of(slave, struct ti_qspi_priv, slave);
} }
static void ti_spi_setup_spi_register(struct ti_qspi_slave *qslave) static void ti_spi_setup_spi_register(struct ti_qspi_priv *priv)
{ {
struct spi_slave *slave = &qslave->slave; struct spi_slave *slave = &priv->slave;
u32 memval = 0; u32 memval = 0;
#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) #if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
@ -123,12 +123,12 @@ static void ti_spi_setup_spi_register(struct ti_qspi_slave *qslave)
QSPI_NUM_DUMMY_BITS; QSPI_NUM_DUMMY_BITS;
#endif #endif
writel(memval, &qslave->base->setup0); writel(memval, &priv->base->setup0);
} }
static void ti_spi_set_speed(struct spi_slave *slave, uint hz) static void ti_spi_set_speed(struct spi_slave *slave, uint hz)
{ {
struct ti_qspi_slave *qslave = to_ti_qspi_slave(slave); struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
uint clk_div; uint clk_div;
debug("ti_spi_set_speed: hz: %d, clock divider %d\n", hz, clk_div); debug("ti_spi_set_speed: hz: %d, clock divider %d\n", hz, clk_div);
@ -139,8 +139,8 @@ static void ti_spi_set_speed(struct spi_slave *slave, uint hz)
clk_div = (QSPI_FCLK / hz) - 1; clk_div = (QSPI_FCLK / hz) - 1;
/* disable SCLK */ /* disable SCLK */
writel(readl(&qslave->base->clk_ctrl) & ~QSPI_CLK_EN, writel(readl(&priv->base->clk_ctrl) & ~QSPI_CLK_EN,
&qslave->base->clk_ctrl); &priv->base->clk_ctrl);
/* assign clk_div values */ /* assign clk_div values */
if (clk_div < 0) if (clk_div < 0)
@ -149,7 +149,7 @@ static void ti_spi_set_speed(struct spi_slave *slave, uint hz)
clk_div = QSPI_CLK_DIV_MAX; clk_div = QSPI_CLK_DIV_MAX;
/* enable SCLK */ /* enable SCLK */
writel(QSPI_CLK_EN | clk_div, &qslave->base->clk_ctrl); writel(QSPI_CLK_EN | clk_div, &priv->base->clk_ctrl);
} }
int spi_cs_is_valid(unsigned int bus, unsigned int cs) int spi_cs_is_valid(unsigned int bus, unsigned int cs)
@ -165,11 +165,11 @@ void spi_cs_activate(struct spi_slave *slave)
void spi_cs_deactivate(struct spi_slave *slave) void spi_cs_deactivate(struct spi_slave *slave)
{ {
struct ti_qspi_slave *qslave = to_ti_qspi_slave(slave); struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
debug("spi_cs_deactivate: 0x%08x\n", (u32)slave); debug("spi_cs_deactivate: 0x%08x\n", (u32)slave);
writel(qslave->cmd | QSPI_INVAL, &qslave->base->cmd); writel(priv->cmd | QSPI_INVAL, &priv->base->cmd);
/* dummy readl to ensure bus sync */ /* dummy readl to ensure bus sync */
readl(&qslave->base->cmd); readl(&qslave->base->cmd);
} }
@ -182,73 +182,73 @@ void spi_init(void)
struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int mode) unsigned int max_hz, unsigned int mode)
{ {
struct ti_qspi_slave *qslave; struct ti_qspi_priv *priv;
#ifdef CONFIG_AM43XX #ifdef CONFIG_AM43XX
gpio_request(CONFIG_QSPI_SEL_GPIO, "qspi_gpio"); gpio_request(CONFIG_QSPI_SEL_GPIO, "qspi_gpio");
gpio_direction_output(CONFIG_QSPI_SEL_GPIO, 1); gpio_direction_output(CONFIG_QSPI_SEL_GPIO, 1);
#endif #endif
qslave = spi_alloc_slave(struct ti_qspi_slave, bus, cs); priv = spi_alloc_slave(struct ti_qspi_priv, bus, cs);
if (!qslave) { if (!priv) {
printf("SPI_error: Fail to allocate ti_qspi_slave\n"); printf("SPI_error: Fail to allocate ti_qspi_priv\n");
return NULL; return NULL;
} }
qslave->base = (struct ti_qspi_regs *)QSPI_BASE; priv->base = (struct ti_qspi_regs *)QSPI_BASE;
qslave->mode = mode; priv->mode = mode;
ti_spi_set_speed(&qslave->slave, max_hz); ti_spi_set_speed(&priv->slave, max_hz);
#ifdef CONFIG_TI_SPI_MMAP #ifdef CONFIG_TI_SPI_MMAP
ti_spi_setup_spi_register(qslave); ti_spi_setup_spi_register(priv);
#endif #endif
return &qslave->slave; return &priv->slave;
} }
void spi_free_slave(struct spi_slave *slave) void spi_free_slave(struct spi_slave *slave)
{ {
struct ti_qspi_slave *qslave = to_ti_qspi_slave(slave); struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
free(qslave); free(priv);
} }
int spi_claim_bus(struct spi_slave *slave) int spi_claim_bus(struct spi_slave *slave)
{ {
struct ti_qspi_slave *qslave = to_ti_qspi_slave(slave); struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
debug("spi_claim_bus: bus:%i cs:%i\n", slave->bus, slave->cs); debug("spi_claim_bus: bus:%i cs:%i\n", slave->bus, slave->cs);
qslave->dc = 0; priv->dc = 0;
if (qslave->mode & SPI_CPHA) if (priv->mode & SPI_CPHA)
qslave->dc |= QSPI_CKPHA(slave->cs); priv->dc |= QSPI_CKPHA(slave->cs);
if (qslave->mode & SPI_CPOL) if (priv->mode & SPI_CPOL)
qslave->dc |= QSPI_CKPOL(slave->cs); priv->dc |= QSPI_CKPOL(slave->cs);
if (qslave->mode & SPI_CS_HIGH) if (priv->mode & SPI_CS_HIGH)
qslave->dc |= QSPI_CSPOL(slave->cs); priv->dc |= QSPI_CSPOL(slave->cs);
writel(qslave->dc, &qslave->base->dc); writel(priv->dc, &priv->base->dc);
writel(0, &qslave->base->cmd); writel(0, &priv->base->cmd);
writel(0, &qslave->base->data); writel(0, &priv->base->data);
return 0; return 0;
} }
void spi_release_bus(struct spi_slave *slave) void spi_release_bus(struct spi_slave *slave)
{ {
struct ti_qspi_slave *qslave = to_ti_qspi_slave(slave); struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
debug("spi_release_bus: bus:%i cs:%i\n", slave->bus, slave->cs); debug("spi_release_bus: bus:%i cs:%i\n", slave->bus, slave->cs);
writel(0, &qslave->base->dc); writel(0, &priv->base->dc);
writel(0, &qslave->base->cmd); writel(0, &priv->base->cmd);
writel(0, &qslave->base->data); writel(0, &priv->base->data);
} }
int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
void *din, unsigned long flags) void *din, unsigned long flags)
{ {
struct ti_qspi_slave *qslave = to_ti_qspi_slave(slave); struct ti_qspi_priv *priv = to_ti_qspi_priv(slave);
uint words = bitlen >> 3; /* fixed 8-bit word length */ uint words = bitlen >> 3; /* fixed 8-bit word length */
const uchar *txp = dout; const uchar *txp = dout;
uchar *rxp = din; uchar *rxp = din;
@ -264,7 +264,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
/* Setup mmap flags */ /* Setup mmap flags */
if (flags & SPI_XFER_MMAP) { if (flags & SPI_XFER_MMAP) {
writel(MM_SWITCH, &qslave->base->memswitch); writel(MM_SWITCH, &priv->base->memswitch);
#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) #if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
val = readl(CORE_CTRL_IO); val = readl(CORE_CTRL_IO);
val |= MEM_CS(slave->cs); val |= MEM_CS(slave->cs);
@ -272,7 +272,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
#endif #endif
return 0; return 0;
} else if (flags & SPI_XFER_MMAP_END) { } else if (flags & SPI_XFER_MMAP_END) {
writel(~MM_SWITCH, &qslave->base->memswitch); writel(~MM_SWITCH, &priv->base->memswitch);
#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) #if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
val = readl(CORE_CTRL_IO); val = readl(CORE_CTRL_IO);
val &= MEM_CS_UNSELECT; val &= MEM_CS_UNSELECT;
@ -290,12 +290,12 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
} }
/* Setup command reg */ /* Setup command reg */
qslave->cmd = 0; priv->cmd = 0;
qslave->cmd |= QSPI_WLEN(8); priv->cmd |= QSPI_WLEN(8);
qslave->cmd |= QSPI_EN_CS(slave->cs); priv->cmd |= QSPI_EN_CS(slave->cs);
if (qslave->mode & SPI_3WIRE) if (priv->mode & SPI_3WIRE)
qslave->cmd |= QSPI_3_PIN; priv->cmd |= QSPI_3_PIN;
qslave->cmd |= 0xfff; priv->cmd |= 0xfff;
/* FIXME: This delay is required for successfull /* FIXME: This delay is required for successfull
* completion of read/write/erase. Once its root * completion of read/write/erase. Once its root
@ -307,39 +307,39 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
while (words--) { while (words--) {
if (txp) { if (txp) {
debug("tx cmd %08x dc %08x data %02x\n", debug("tx cmd %08x dc %08x data %02x\n",
qslave->cmd | QSPI_WR_SNGL, qslave->dc, *txp); priv->cmd | QSPI_WR_SNGL, priv->dc, *txp);
writel(*txp++, &qslave->base->data); writel(*txp++, &priv->base->data);
writel(qslave->cmd | QSPI_WR_SNGL, writel(priv->cmd | QSPI_WR_SNGL,
&qslave->base->cmd); &priv->base->cmd);
status = readl(&qslave->base->status); status = readl(&priv->base->status);
timeout = QSPI_TIMEOUT; timeout = QSPI_TIMEOUT;
while ((status & QSPI_WC_BUSY) != QSPI_XFER_DONE) { while ((status & QSPI_WC_BUSY) != QSPI_XFER_DONE) {
if (--timeout < 0) { if (--timeout < 0) {
printf("spi_xfer: TX timeout!\n"); printf("spi_xfer: TX timeout!\n");
return -1; return -1;
} }
status = readl(&qslave->base->status); status = readl(&priv->base->status);
} }
debug("tx done, status %08x\n", status); debug("tx done, status %08x\n", status);
} }
if (rxp) { if (rxp) {
qslave->cmd |= QSPI_RD_SNGL; priv->cmd |= QSPI_RD_SNGL;
debug("rx cmd %08x dc %08x\n", debug("rx cmd %08x dc %08x\n",
qslave->cmd, qslave->dc); priv->cmd, priv->dc);
#ifdef CONFIG_DRA7XX #ifdef CONFIG_DRA7XX
udelay(500); udelay(500);
#endif #endif
writel(qslave->cmd, &qslave->base->cmd); writel(priv->cmd, &priv->base->cmd);
status = readl(&qslave->base->status); status = readl(&priv->base->status);
timeout = QSPI_TIMEOUT; timeout = QSPI_TIMEOUT;
while ((status & QSPI_WC_BUSY) != QSPI_XFER_DONE) { while ((status & QSPI_WC_BUSY) != QSPI_XFER_DONE) {
if (--timeout < 0) { if (--timeout < 0) {
printf("spi_xfer: RX timeout!\n"); printf("spi_xfer: RX timeout!\n");
return -1; return -1;
} }
status = readl(&qslave->base->status); status = readl(&priv->base->status);
} }
*rxp++ = readl(&qslave->base->data); *rxp++ = readl(&priv->base->data);
debug("rx done, status %08x, read %02x\n", debug("rx done, status %08x, read %02x\n",
status, *(rxp-1)); status, *(rxp-1));
} }