mtd: atmel_nand: request and configure pio via gpiolib
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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6fefe24a36
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@ -1114,8 +1114,42 @@ static int __init atmel_nand_probe(struct device_d *dev)
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nand_chip->IO_ADDR_W = host->io_base;
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nand_chip->IO_ADDR_W = host->io_base;
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nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
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nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
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if (gpio_is_valid(host->board->rdy_pin))
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if (gpio_is_valid(host->board->rdy_pin)) {
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res = gpio_request(host->board->rdy_pin, "nand_rdy");
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if (res < 0) {
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dev_err(dev, "can't request rdy gpio %d\n",
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host->board->rdy_pin);
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goto err_no_card;
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}
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res = gpio_direction_input(host->board->rdy_pin);
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if (res < 0) {
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dev_err(dev,
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"can't request input direction rdy gpio %d\n",
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host->board->rdy_pin);
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goto err_no_card;
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}
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nand_chip->dev_ready = atmel_nand_device_ready;
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nand_chip->dev_ready = atmel_nand_device_ready;
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}
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if (gpio_is_valid(host->board->enable_pin)) {
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res = gpio_request(host->board->enable_pin, "nand_enable");
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if (res < 0) {
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dev_err(dev,
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"can't request enable gpio %d\n",
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host->board->enable_pin);
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goto err_no_card;
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}
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res = gpio_direction_output(host->board->enable_pin, 1);
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if (res < 0) {
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dev_err(dev,
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"can't request output direction enable gpio %d\n",
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host->board->enable_pin);
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goto err_no_card;
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}
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}
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nand_chip->ecc.mode = NAND_ECC_SOFT;
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nand_chip->ecc.mode = NAND_ECC_SOFT;
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@ -1138,9 +1172,24 @@ static int __init atmel_nand_probe(struct device_d *dev)
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atmel_nand_enable(host);
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atmel_nand_enable(host);
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if (gpio_is_valid(host->board->det_pin)) {
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if (gpio_is_valid(host->board->det_pin)) {
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res = gpio_request(host->board->det_pin, "nand_det");
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if (res < 0) {
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dev_err(dev, "can't request det gpio %d\n",
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host->board->det_pin);
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goto err_no_card;
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}
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res = gpio_direction_input(host->board->det_pin);
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if (res < 0) {
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dev_err(dev,
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"can't request input direction det gpio %d\n",
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host->board->det_pin);
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goto err_no_card;
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}
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if (gpio_get_value(host->board->det_pin)) {
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if (gpio_get_value(host->board->det_pin)) {
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printk("No SmartMedia card inserted.\n");
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printk("No SmartMedia card inserted.\n");
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res = ENXIO;
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res = -ENXIO;
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goto err_no_card;
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goto err_no_card;
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}
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}
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}
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}
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