Re: [PATCH v2 07/45] drivers: tty: serial: 8250_uniphier: use devm_ioremap_resource()

From: Masahiro Yamada
Date: Mon Mar 18 2019 - 03:45:32 EST


On Fri, Mar 15, 2019 at 7:35 AM Enrico Weigelt, metux IT consult
<info@xxxxxxxxx> wrote:
>
> Instead of fetching out data from a struct resource for passing
> it to devm_ioremap(), directly use devm_ioremap_resource()
>
> Signed-off-by: Enrico Weigelt, metux IT consult <info@xxxxxxxxx>
> ---


NACK.


This patch would break my driver.

Probably, all the 8250* drivers would be broken in the same way.


For 8250 drivers, request_mem_region() is called
from 8250_port.c


Let's not touch around the code you do not
understand how it works.


Thanks.

Masahiro Yamada



> drivers/tty/serial/8250/8250_uniphier.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c
> index 164ba13..9c1244e 100644
> --- a/drivers/tty/serial/8250/8250_uniphier.c
> +++ b/drivers/tty/serial/8250/8250_uniphier.c
> @@ -171,7 +171,7 @@ static int uniphier_uart_probe(struct platform_device *pdev)
> return -EINVAL;
> }
>
> - membase = devm_ioremap(dev, regs->start, resource_size(regs));
> + membase = devm_ioremap_resource(dev, regs);
> if (!membase)
> return -ENOMEM;
>
> --
> 1.9.1
>