[U-Boot] [PATCH 06/10] debug_uart: Adjust the declaration of debug_uart_init()

[Bin Meng]

Hi Simon,

On Wed, Sep 9, 2015 at 7:52 AM, Simon Glass <sjg at chromium.org> wrote:
> We want to be able to add other common code to this function. So change the
> driver's version to have an underscore before it, just like
> _debug_uart_putc(). Define debug_uart_init() to call this version.
>
> Update all drivers to this new method.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
>  drivers/serial/ns16550.c    | 2 +-
>  drivers/serial/serial_efi.c | 2 +-
>  drivers/serial/serial_s5p.c | 2 +-
>  include/debug_uart.h        | 9 +++++++--
>  lib/efi/efi_stub.c          | 2 +-
>  5 files changed, 11 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
> index 6275a11..6433844 100644
> --- a/drivers/serial/ns16550.c
> +++ b/drivers/serial/ns16550.c
> @@ -257,7 +257,7 @@ int NS16550_tstc(NS16550_t com_port)
>                         (1 << CONFIG_DEBUG_UART_SHIFT), \
>                 CONFIG_DEBUG_UART_SHIFT)
>
> -void debug_uart_init(void)
> +static inline void _debug_uart_init(void)

Is this 'static inline' change needed? As I don't see the same changes
applied to serial_efi.c and serial_s5p.c

>  {
>         struct NS16550 *com_port = (struct NS16550 *)CONFIG_DEBUG_UART_BASE;
>         int baud_divisor;
> diff --git a/drivers/serial/serial_efi.c b/drivers/serial/serial_efi.c
> index cf57d89..ee3029b 100644
> --- a/drivers/serial/serial_efi.c
> +++ b/drivers/serial/serial_efi.c
> @@ -107,7 +107,7 @@ static int serial_efi_pending(struct udevice *dev, bool input)
>   * There is nothing to init here since the EFI console is already running by
>   * the time we enter U-Boot.
>   */
> -void debug_uart_init(void)
> +void _debug_uart_init(void)
>  {
>  }
>
> diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c
> index 3f0b588..e7adf0d 100644
> --- a/drivers/serial/serial_s5p.c
> +++ b/drivers/serial/serial_s5p.c
> @@ -207,7 +207,7 @@ U_BOOT_DRIVER(serial_s5p) = {
>
>  #include <debug_uart.h>
>
> -void debug_uart_init(void)
> +void _debug_uart_init(void)
>  {
>         struct s5p_uart *uart = (struct s5p_uart *)CONFIG_DEBUG_UART_BASE;
>
> diff --git a/include/debug_uart.h b/include/debug_uart.h
> index a75e377..257ba00 100644
> --- a/include/debug_uart.h
> +++ b/include/debug_uart.h
> @@ -38,7 +38,7 @@
>   * To enable the debug UART in your serial driver:
>   *
>   * - #include <debug_uart.h>
> - * - Define debug_uart_init(), trying to avoid using the stack
> + * - Define _debug_uart_init(), trying to avoid using the stack
>   * - Define _debug_uart_putc() as static inline (avoiding stack usage)
>   * - Immediately afterwards, add DEBUG_UART_FUNCS to define the rest of the
>   *     functionality (printch(), etc.)
> @@ -132,6 +132,11 @@ void printhex8(uint value);
>         void printhex8(uint value) \
>         { \
>                 printhex(value, 8); \
> -       }
> +       } \
> +\
> +       void debug_uart_init(void) \
> +       { \
> +               _debug_uart_init(); \
> +       } \
>
>  #endif
> diff --git a/lib/efi/efi_stub.c b/lib/efi/efi_stub.c
> index d4d3e49..e138709 100644
> --- a/lib/efi/efi_stub.c
> +++ b/lib/efi/efi_stub.c
> @@ -59,7 +59,7 @@ struct __packed desctab_info {
>   * considering if we start needing more U-Boot functionality. Note that we
>   * could then move get_codeseg32() to arch/x86/cpu/cpu.c.
>   */
> -void debug_uart_init(void)
> +void _debug_uart_init(void)
>  {
>  }
>
> --

Regards,
Bin