From 236f2bd30262f564c0bb71638105e525ddf47b9f Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 10 Nov 2014 17:16:48 -0700 Subject: [PATCH] dm: Allow stdio registration to be dropped Provide a CONFIG_DM_STDIO option to enable registering a serial device with the stdio library. This is seldom useful in SPL, so disable it by default when building for SPL. Signed-off-by: Simon Glass Reviewed-by: Tom Rini --- drivers/serial/serial-uclass.c | 10 +++++++--- include/config_defaults.h | 1 + 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c index 632933f5cc..cd5324cfa3 100644 --- a/drivers/serial/serial-uclass.c +++ b/drivers/serial/serial-uclass.c @@ -163,10 +163,12 @@ void serial_stdio_init(void) { } +#ifdef CONFIG_DM_STDIO static void serial_stub_putc(struct stdio_dev *sdev, const char ch) { _serial_putc(sdev->priv, ch); } +#endif void serial_stub_puts(struct stdio_dev *sdev, const char *str) { @@ -246,9 +248,11 @@ U_BOOT_ENV_CALLBACK(baudrate, on_baudrate); static int serial_post_probe(struct udevice *dev) { - struct stdio_dev sdev; struct dm_serial_ops *ops = serial_get_ops(dev); +#ifdef CONFIG_DM_STDIO struct serial_dev_priv *upriv = dev->uclass_priv; + struct stdio_dev sdev; +#endif int ret; /* Set the baud rate */ @@ -258,9 +262,9 @@ static int serial_post_probe(struct udevice *dev) return ret; } +#ifdef CONFIG_DM_STDIO if (!(gd->flags & GD_FLG_RELOC)) return 0; - memset(&sdev, '\0', sizeof(sdev)); strncpy(sdev.name, dev->name, sizeof(sdev.name)); @@ -271,7 +275,7 @@ static int serial_post_probe(struct udevice *dev) sdev.getc = serial_stub_getc; sdev.tstc = serial_stub_tstc; stdio_register_dev(&sdev, &upriv->sdev); - +#endif return 0; } diff --git a/include/config_defaults.h b/include/config_defaults.h index 985f055cce..f1b225d670 100644 --- a/include/config_defaults.h +++ b/include/config_defaults.h @@ -22,6 +22,7 @@ #ifndef CONFIG_SPL_BUILD #define CONFIG_DM_DEVICE_REMOVE +#define CONFIG_DM_STDIO #endif #endif -- 2.39.5