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mtd: atmel nand: fix gpio missing request

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without this the gpio will not be muxed as a gpio by the current custom pinmux
or later by the pinctrl

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-07-12 10:31:08 +02:00 committed by David Woodhouse
parent aa6d01fa43
commit 28446acb1f
1 changed files with 63 additions and 2 deletions
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65
drivers/mtd/nand/atmel_nand.c
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@ -1399,7 +1399,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
if (pdev->dev.of_node) {
res = atmel_of_init_port(host, pdev->dev.of_node);
if (res)
goto err_nand_ioremap;
goto err_ecc_ioremap;
} else {
memcpy(&host->board, pdev->dev.platform_data,
sizeof(struct atmel_nand_data));
@ -1414,8 +1414,43 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
nand_chip->IO_ADDR_W = host->io_base;
nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
if (gpio_is_valid(host->board.rdy_pin))
if (gpio_is_valid(host->board.rdy_pin)) {
res = gpio_request(host->board.rdy_pin, "nand_rdy");
if (res < 0) {
dev_err(&pdev->dev,
"can't request rdy gpio %d\n",
host->board.rdy_pin);
goto err_ecc_ioremap;
}
res = gpio_direction_input(host->board.rdy_pin);
if (res < 0) {
dev_err(&pdev->dev,
"can't request input direction rdy gpio %d\n",
host->board.rdy_pin);
goto err_ecc_ioremap;
}
nand_chip->dev_ready = atmel_nand_device_ready;
}
if (gpio_is_valid(host->board.enable_pin)) {
res = gpio_request(host->board.enable_pin, "nand_enable");
if (res < 0) {
dev_err(&pdev->dev,
"can't request enable gpio %d\n",
host->board.enable_pin);
goto err_ecc_ioremap;
}
res = gpio_direction_output(host->board.enable_pin, 1);
if (res < 0) {
dev_err(&pdev->dev,
"can't request output direction enable gpio %d\n",
host->board.enable_pin);
goto err_ecc_ioremap;
}
}
nand_chip->ecc.mode = host->board.ecc_mode;
nand_chip->chip_delay = 20; /* 20us command delay time */
@ -1430,6 +1465,22 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
atmel_nand_enable(host);
if (gpio_is_valid(host->board.det_pin)) {
res = gpio_request(host->board.det_pin, "nand_det");
if (res < 0) {
dev_err(&pdev->dev,
"can't request det gpio %d\n",
host->board.det_pin);
goto err_no_card;
}
res = gpio_direction_input(host->board.det_pin);
if (res < 0) {
dev_err(&pdev->dev,
"can't request input direction det gpio %d\n",
host->board.det_pin);
goto err_no_card;
}
if (gpio_get_value(host->board.det_pin)) {
printk(KERN_INFO "No SmartMedia card inserted.\n");
res = -ENXIO;
@ -1509,6 +1560,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, NULL);
if (host->dma_chan)
dma_release_channel(host->dma_chan);
err_ecc_ioremap:
iounmap(host->io_base);
err_nand_ioremap:
kfree(host);
@ -1534,6 +1586,15 @@ static int __exit atmel_nand_remove(struct platform_device *pdev)
pmecc_data_free(host);
}
if (gpio_is_valid(host->board.det_pin))
gpio_free(host->board.det_pin);
if (gpio_is_valid(host->board.enable_pin))
gpio_free(host->board.enable_pin);
if (gpio_is_valid(host->board.rdy_pin))
gpio_free(host->board.rdy_pin);
if (host->ecc)
iounmap(host->ecc);
if (host->pmecc_rom_base)