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Commit 6ec9249a authored by Lokesh Vutla's avatar Lokesh Vutla Committed by Linus Walleij
Browse files

gpio: davinci: Fix the number of controllers allocated 



Driver only needs to allocate for [ngpio / 32] controllers,
as each controller handles 32 gpios. But the current driver
allocates for ngpio of which the extra allocated are unused.
Fix it be registering only the required number of controllers.

Signed-off-by: default avatarLokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: default avatarKeerthy <j-keerthy@ti.com>
Reviewed-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 310a7e60

drivers/gpio/gpio-davinci.c

+3 −2
Original line number Diff line number Diff line
@@ -195,7 +195,7 @@ static int davinci_gpio_of_xlate(struct gpio_chip *gc, 
static int davinci_gpio_probe(struct platform_device *pdev)

{

	int i, base;

	unsigned ngpio;

	unsigned ngpio, nbank;

	struct davinci_gpio_controller *chips;

	struct davinci_gpio_platform_data *pdata;

	struct davinci_gpio_regs __iomem *regs;
@@ -224,8 +224,9 @@ static int davinci_gpio_probe(struct platform_device *pdev) 
	if (WARN_ON(ARCH_NR_GPIOS < ngpio))

		ngpio = ARCH_NR_GPIOS;



	nbank = DIV_ROUND_UP(ngpio, 32);

	chips = devm_kzalloc(dev,

			     ngpio * sizeof(struct davinci_gpio_controller),

			     nbank * sizeof(struct davinci_gpio_controller),

			     GFP_KERNEL);

	if (!chips)

		return -ENOMEM;