diff options
Diffstat (limited to 'drivers/mtd/nand/raw/sunxi_nand.c')
| -rw-r--r-- | drivers/mtd/nand/raw/sunxi_nand.c | 56 |
1 files changed, 29 insertions, 27 deletions
diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c index e828ee50a201..f7e4f3f77028 100644 --- a/drivers/mtd/nand/raw/sunxi_nand.c +++ b/drivers/mtd/nand/raw/sunxi_nand.c @@ -1471,8 +1471,8 @@ static int _sunxi_nand_lookup_timing(const s32 *lut, int lut_size, u32 duration, static int sunxi_nfc_setup_data_interface(struct nand_chip *nand, int csline, const struct nand_data_interface *conf) { - struct sunxi_nand_chip *chip = to_sunxi_nand(nand); - struct sunxi_nfc *nfc = to_sunxi_nfc(chip->nand.controller); + struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); + struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); const struct nand_sdr_timings *timings; u32 min_clk_period = 0; s32 tWB, tADL, tWHR, tRHW, tCAD; @@ -1591,7 +1591,7 @@ static int sunxi_nfc_setup_data_interface(struct nand_chip *nand, int csline, tCAD = 0x7; /* TODO: A83 has some more bits for CDQSS, CS, CLHZ, CCS, WC */ - chip->timing_cfg = NFC_TIMING_CFG(tWB, tADL, tWHR, tRHW, tCAD); + sunxi_nand->timing_cfg = NFC_TIMING_CFG(tWB, tADL, tWHR, tRHW, tCAD); /* Convert min_clk_period from picoseconds to nanoseconds */ min_clk_period = DIV_ROUND_UP(min_clk_period, 1000); @@ -1602,10 +1602,11 @@ static int sunxi_nfc_setup_data_interface(struct nand_chip *nand, int csline, * This new formula was verified with a scope and validated by * Allwinner engineers. */ - chip->clk_rate = NSEC_PER_SEC / min_clk_period; - real_clk_rate = clk_round_rate(nfc->mod_clk, chip->clk_rate); + sunxi_nand->clk_rate = NSEC_PER_SEC / min_clk_period; + real_clk_rate = clk_round_rate(nfc->mod_clk, sunxi_nand->clk_rate); if (real_clk_rate <= 0) { - dev_err(nfc->dev, "Unable to round clk %lu\n", chip->clk_rate); + dev_err(nfc->dev, "Unable to round clk %lu\n", + sunxi_nand->clk_rate); return -EINVAL; } @@ -1615,8 +1616,8 @@ static int sunxi_nfc_setup_data_interface(struct nand_chip *nand, int csline, * 30 ns. */ min_clk_period = NSEC_PER_SEC / real_clk_rate; - chip->timing_ctl = ((min_clk_period * 2) < 30) ? - NFC_TIMING_CTL_EDO : 0; + sunxi_nand->timing_ctl = ((min_clk_period * 2) < 30) ? + NFC_TIMING_CTL_EDO : 0; return 0; } @@ -1853,7 +1854,7 @@ static const struct nand_controller_ops sunxi_nand_controller_ops = { static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, struct device_node *np) { - struct sunxi_nand_chip *chip; + struct sunxi_nand_chip *sunxi_nand; struct mtd_info *mtd; struct nand_chip *nand; int nsels; @@ -1870,17 +1871,17 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, return -EINVAL; } - chip = devm_kzalloc(dev, - sizeof(*chip) + - (nsels * sizeof(struct sunxi_nand_chip_sel)), - GFP_KERNEL); - if (!chip) { + sunxi_nand = devm_kzalloc(dev, + sizeof(*sunxi_nand) + + (nsels * sizeof(struct sunxi_nand_chip_sel)), + GFP_KERNEL); + if (!sunxi_nand) { dev_err(dev, "could not allocate chip\n"); return -ENOMEM; } - chip->nsels = nsels; - chip->selected = -1; + sunxi_nand->nsels = nsels; + sunxi_nand->selected = -1; for (i = 0; i < nsels; i++) { ret = of_property_read_u32_index(np, "reg", i, &tmp); @@ -1902,16 +1903,16 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, return -EINVAL; } - chip->sels[i].cs = tmp; + sunxi_nand->sels[i].cs = tmp; if (!of_property_read_u32_index(np, "allwinner,rb", i, &tmp) && tmp < 2) - chip->sels[i].rb = tmp; + sunxi_nand->sels[i].rb = tmp; else - chip->sels[i].rb = -1; + sunxi_nand->sels[i].rb = -1; } - nand = &chip->nand; + nand = &sunxi_nand->nand; /* Default tR value specified in the ONFI spec (chapter 4.15.1) */ nand->legacy.chip_delay = 200; nand->controller = &nfc->controller; @@ -1943,7 +1944,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, return ret; } - list_add_tail(&chip->node, &nfc->chips); + list_add_tail(&sunxi_nand->node, &nfc->chips); return 0; } @@ -1973,14 +1974,15 @@ static int sunxi_nand_chips_init(struct device *dev, struct sunxi_nfc *nfc) static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc) { - struct sunxi_nand_chip *chip; + struct sunxi_nand_chip *sunxi_nand; while (!list_empty(&nfc->chips)) { - chip = list_first_entry(&nfc->chips, struct sunxi_nand_chip, - node); - nand_release(&chip->nand); - sunxi_nand_ecc_cleanup(&chip->nand.ecc); - list_del(&chip->node); + sunxi_nand = list_first_entry(&nfc->chips, + struct sunxi_nand_chip, + node); + nand_release(&sunxi_nand->nand); + sunxi_nand_ecc_cleanup(&sunxi_nand->nand.ecc); + list_del(&sunxi_nand->node); } } |