On 16/02/2021 03.06, Krzysztof Kozlowski wrote:
On Mon, Feb 15, 2021 at 09:17:05PM +0900, Hector Martin wrote:+static void s3c64xx_serial_shutdown(struct uart_port *port) +{ + struct s3c24xx_uart_port *ourport = to_ourport(port); + + free_irq(port->irq, ourport); + + wr_regl(port, S3C64XX_UINTP, 0xf); + wr_regl(port, S3C64XX_UINTM, 0xf); + + ourport->tx_enabled = 0; + ourport->tx_mode = 0; + ourport->rx_enabled = 0;For S3C64xx type this is not equivalent: the assignments were happening before free_irq() and wr_regl(). Honestly I don't know whether it matters (except some barriers coming from these functions) but please do not change the order of code in this patch. If needed, the re-ordering should be a patch on its own. With explanation why.
Honestly, I think if anything the masking should happen first (to make sure no IRQs go off), but at this point it's probably better to play it safe and not introduce any logic changes, so I've moved the assignments first to retain the old behavior.
Make the s3c24xx_serial_ops const as well.
Done for v3, thanks. -- Hector Martin ([email protected]) Public Key: https://mrcn.st/pub
